What is the cheapest month to fly to Washington, D.C.?

At the present moment the cheapest month to fly to Washington, D.C. is currently February ; with December being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

Can I find cheaper flights to Washington, D.C. if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington, D.C. on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Washington, D.C.?

Based on reviews from Cheapflights users, American Airlines is rated the highest out of the airlines that fly to Washington, D.C..

What is the cheapest airport to fly to in Washington, D.C.?

Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost $72, while return flights cost around $73.

How much is a return flight to Washington, D.C.?

A return flight to Washington, D.C. will typically cost around $959, however they can be found for as little as $953.

Where does the fastest flight to Washington, D.C. depart from?

For those looking to save time traveling to Washington, D.C., Brisbane offers the quickest one-way flight (19 hours 55 minutes).

Does Washington, D.C. Dulles Intl have car hire?

Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Washington, D.C. Dulles Intl?

Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

$678+ Flights to Washington, D.C., District of Columbia

Flights to Washington, D.C. in 2025

Return from	$1,102
One-way from	$678
Popular in	December
Cheapest in	February
Average price	$1,565

Air Canada
15/9-23/9
4 total stops
57h 30m total
Sydney to Washington, D.C.

Search Deals

15/10
2 total stops
52h 15m total
Sydney to Washington, D.C.

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($344 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($95 potential savings vs. average return price).

Search Deals

Average for return flights in August 2025

Search Deals

Find flight deals to Washington, D.C.

Cheapest flights to Washington, D.C.
Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 29 August 2025.

Mon 15/909:20SYD - IAD

2 stops25h 45mAir Canada

Tue 23/909:35IAD - SYD

2 stops31h 45mAir Canada

Deal found 26/8$1,102

Thu 23/1010:20SYD - DCA

2 stops24h 24mAir Canada

Thu 30/1012:55DCA - SYD

2 stops28h 40mAir Canada

Deal found 26/8$1,199

Wed 15/1010:20SYD - DCA

2 stops24h 24mAir Canada

Wed 22/1020:40DCA - SYD

2 stops44h 40mAir Canada

Deal found 28/8$1,226

Mon 8/909:30SYD - IAD

1 stop29h 00mUnited Airlines

Wed 24/912:45IAD - SYD

1 stop28h 15mUnited Airlines

Deal found 29/8$1,260

Wed 15/1010:10SYD - DCA

2 stops23h 34mAmerican Airlines

Wed 22/1017:20DCA - SYD

1 stop22h 35mAmerican Airlines

Deal found 28/8$1,260

Sat 25/1010:20SYD - IAD

2 stops44h 34mAir Canada

Thu 30/1009:00IAD - SYD

2 stops32h 35mAir Canada

Deal found 27/8$1,268

Sat 25/1010:20SYD - DCA

2 stops37h 35mAir Canada

Thu 30/1006:59DCA - SYD

2 stops34h 36mAir Canada

Deal found 27/8$1,268

Thu 23/1010:10SYD - BWI

2 stops26h 44mAmerican Airlines

Thu 30/1013:27BWI - SYD

2 stops28h 33mAmerican Airlines

Deal found 26/8$1,271

Wed 15/1010:30SYD - IAD

1 stop20h 53mUnited Airlines

Wed 22/1013:20IAD - SYD

2 stops27h 35mUnited Airlines

Deal found 28/8$1,275

Thu 28/810:20SYD - DCA

1 stop20h 34mUnited Airlines

Wed 10/916:47DCA - SYD

2 stops24h 13mUnited Airlines

Deal found 26/8$1,275

Sun 12/1010:30SYD - BWI

2 stops38h 25mUnited Airlines

Sun 19/1006:45BWI - SYD

1 stop34h 10mUnited Airlines

Deal found 28/8$1,275

Sun 12/1010:20SYD - DCA

2 stops40h 48mAir Canada

Sun 19/1020:40DCA - SYD

2 stops44h 40mAir Canada

Deal found 28/8$1,278

Best flights to Washington, D.C.
Discover carefully curated flight deals to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2025.

Mon 15/909:20SYD - IAD

2 stops25h 45mAir Canada

Tue 23/909:35IAD - SYD

2 stops31h 45mAir Canada

Deal found 26/8$1,102

Mon 8/909:30SYD - IAD

1 stop29h 00mUnited Airlines

Wed 24/912:45IAD - SYD

1 stop28h 15mUnited Airlines

Deal found 29/8$1,260

Wed 15/1010:10SYD - DCA

2 stops23h 34mAmerican Airlines

Wed 22/1017:20DCA - SYD

1 stop22h 35mAmerican Airlines

Deal found 28/8$1,260

Tue 4/1110:40SYD - BWI

2 stops27h 35mDelta

Tue 18/1111:39BWI - SYD

2 stops28h 51mDelta

Deal found 28/8$1,275

Tue 24/214:05SYD - DCA

1 stop20h 46mQantas Airways

Fri 15/517:30DCA - SYD

1 stop23h 35mQantas Airways

Deal found 27/8$1,470

Tue 4/1111:20SYD - IAD

2 stops25h 34mAir Canada

Tue 18/1109:45IAD - SYD

2 stops31h 50mAir Canada

Deal found 28/8$1,102

Thu 23/1010:20SYD - IAD

2 stops49h 45mAir Canada

Thu 30/1009:45IAD - SYD

2 stops31h 50mAir Canada

Deal found 26/8$1,102

Thu 23/1010:10SYD - BWI

2 stops26h 44mAmerican Airlines

Thu 30/1013:27BWI - SYD

2 stops28h 33mAmerican Airlines

Deal found 26/8$1,271

Sat 11/1010:30SYD - BWI

2 stops25h 52mUnited Airlines

Sat 18/1008:50BWI - SYD

1 stop32h 05mUnited Airlines

Deal found 27/8$1,275

Wed 15/1010:25SYD - BWI

2 stops23h 16mDelta

Wed 22/1012:19BWI - SYD

2 stops28h 16mDelta

Deal found 28/8$1,275

Mon 8/909:10SYD - IAD

2 stops27h 38mAmerican Airlines

Wed 24/911:47IAD - SYD

2 stops29h 18mAmerican Airlines

Deal found 29/8$1,275

Wed 15/1010:30SYD - BWI

2 stops26h 00mUnited Airlines

Wed 22/1019:28BWI - SYD

1 stop21h 32mUnited Airlines

Deal found 28/8$1,275

Last-minute flights to Washington, D.C.
Discover last-minute flight deals to Washington, D.C.. Data last updated 29 August 2025 and is based on user searches.

Thu 28/810:20SYD - DCA

1 stop20h 34mUnited Airlines

Wed 10/916:47DCA - SYD

2 stops24h 13mUnited Airlines

Deal found 26/8$1,275

Fri 29/810:20SYD - BWI

1 stop21h 11mUnited Airlines

Thu 11/908:55BWI - SYD

1 stop32h 00mUnited Airlines

Deal found 27/8$1,275

Fri 29/810:20SYD - IAD

1 stop20h 05mUnited Airlines

Thu 11/912:45IAD - SYD

1 stop28h 15mUnited Airlines

Deal found 27/8$1,424

Fri 29/810:20SYD - DCA

1 stop20h 34mUnited Airlines

Thu 11/916:47DCA - SYD

2 stops24h 13mUnited Airlines

Deal found 27/8$1,424

Sun 31/809:10SYD - BWI

2 stops27h 54mAmerican Airlines

Wed 3/911:04BWI - SYD

2 stops30h 01mAmerican Airlines

Deal found 27/8$1,297

Sun 31/809:30SYD - BWI

1 stop21h 37mUnited Airlines

Wed 3/910:51BWI - SYD

2 stops30h 09mUnited Airlines

Deal found 26/8$1,323

Mon 8/909:30SYD - IAD

1 stop29h 00mUnited Airlines

Wed 24/912:45IAD - SYD

1 stop28h 15mUnited Airlines

Deal found 29/8$1,260

Mon 8/909:10SYD - IAD

2 stops27h 38mAmerican Airlines

Wed 24/911:47IAD - SYD

2 stops29h 18mAmerican Airlines

Deal found 29/8$1,275

Fri 12/912:10SYD - IAD

1 stop24h 35mAmerican Airlines

Fri 19/911:47IAD - SYD

2 stops29h 18mAmerican Airlines

Deal found 29/8$1,429

Mon 15/909:20SYD - IAD

2 stops25h 45mAir Canada

Tue 23/909:35IAD - SYD

2 stops31h 45mAir Canada

Deal found 26/8$1,102

Tue 16/910:20SYD - IAD

1 stop22h 32mLufthansa

Wed 24/917:40IAD - SYD

1 stop23h 20mLufthansa

Deal found 27/8$1,295

Wed 17/910:20SYD - IAD

2 stops22h 53mUnited Airlines

Thu 25/914:45IAD - SYD

2 stops26h 15mUnited Airlines

Deal found 28/8$1,357

One-way flights to Washington, D.C.
Search for one-way flight options to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated 29 August 2025.

Wed 15/1017:20SYD - BWI

2 stops52h 15mMultiple Airlines

Deal found 28/8$678

Fri 14/1111:20SYD - BWI

2 stops22h 53mAmerican Airlines

Deal found 28/8$750

Wed 3/909:25SYD - BWI

2 stops23h 27mDelta

Deal found 26/8$762

Sun 7/909:30SYD - BWI

1 stop36h 36mUnited Airlines

Deal found 28/8$763

Mon 3/1111:20SYD - BWI

1 stop22h 37mUnited Airlines

Deal found 28/8$768

Tue 14/1010:30SYD - BWI

1 stop22h 51mUnited Airlines

Deal found 26/8$771

Sat 6/910:20SYD - BWI

2 stops26h 57mUnited Airlines

Deal found 28/8$785

Wed 15/1017:20SYD - IAD

3 stops54h 49mMultiple Airlines

Deal found 28/8$845

Wed 15/1017:20SYD - DCA

3 stops57h 44mMultiple Airlines

Deal found 28/8$861

Tue 14/1010:20SYD - IAD

2 stops25h 45mAir Canada

Deal found 26/8$892

Tue 14/1010:20SYD - DCA

2 stops26h 31mAir Canada

Deal found 26/8$892

Wed 15/1016:40SYD - IAD

1 stop38h 30mEtihad Airways

Deal found 28/8$953

Fly from

Route

Depart

Return

Price

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 15/9

09:20-21:05

2 stops25h 45m

Washington, D.C. Dulles Intl

Tue 23/9

09:35-07:20

2 stops31h 45m

$1,102

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 4/11

11:20-20:54

2 stops25h 34m

Washington, D.C. Dulles Intl

Tue 18/11

09:45-09:35

2 stops31h 50m

$1,102

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Thu 23/10

10:20-21:05

2 stops49h 45m

Washington, D.C. Dulles Intl

Thu 30/10

09:45-08:35

2 stops31h 50m

$1,102

SydneyWashington, D.C.

SYD - DCA

SYDDCA

Sydney Kingsford Smith

Thu 23/10

10:20-19:44

2 stops24h 24m

Washington, D.C. Reagan-National

Thu 30/10

12:55-08:35

2 stops28h 40m

$1,199

SydneyWashington, D.C.

SYD - DCA

SYDDCA

Sydney Kingsford Smith

Wed 15/10

10:20-19:44

2 stops24h 24m

Washington, D.C. Reagan-National

Wed 22/10

20:40-08:20

2 stops44h 40m

$1,226

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Mon 8/9

09:30-00:30

1 stop29h 00m

Washington, D.C. Dulles Intl

Wed 24/9

12:45-07:00

1 stop28h 15m

$1,260

SydneyWashington, D.C.

SYD - DCA

SYDDCA

Sydney Kingsford Smith

Wed 15/10

10:10-18:44

2 stops23h 34m

Washington, D.C. Reagan-National

Wed 22/10

17:20-06:55

1 stop22h 35m

$1,260

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Tue 16/9

09:20-09:38

2 stops38h 18m

Washington, D.C. Dulles Intl

Wed 24/9

14:25-07:20

2 stops26h 55m

$1,260

SydneyWashington, D.C.

SYD - IAD

SYDIAD

Sydney Kingsford Smith

Sat 25/10

10:20-15:54

2 stops44h 34m

Washington, D.C. Dulles Intl

Thu 30/10

09:00-08:35

2 stops32h 35m

$1,268

SydneyWashington, D.C.

SYD - DCA

SYDDCA

Sydney Kingsford Smith

Sat 25/10

10:20-08:55

2 stops37h 35m

Washington, D.C. Reagan-National

Thu 30/10

06:59-08:35

2 stops34h 36m

$1,268

Flights are sorted by cheapest return flights first.

Deals found on 28/8

Showing 1-10 of 48 results

...

Best time to book a flight to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C.

When is the best time to book a flight to Washington, D.C.?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to Washington, D.C.?

On average, a flight from Sydney to Washington, D.C. takes 20 hours 6 minutes. Flights to Washington, D.C. from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Washington, D.C.?

Users looking for the lowest fares to Washington, D.C. should consider flying on Monday at midday, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday evenings, when prices are usually at their highest.

What are the most popular airlines that fly to Washington, D.C.?

The most popular airlines flying from Sydney to Washington, D.C. are United Airlines, Air Canada and Virgin Australia.

What are the cheapest airlines that fly to Washington, D.C.?

The cheapest airlines flying from Sydney to Washington, D.C. are American Airlines, Qantas Airways and Air Canada.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 mm per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines serving the United States, such as Qantas Airways, Virgin Australia, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Qantas Airways

7.5

Good

905 reviews

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Virgin Australia

7.5

Good

415 reviews

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

United Airlines

7.4

Good

8,941 reviews

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

American Airlines

7.2

Good

10,000 reviews

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

Air Canada

7.1

Good

10,000 reviews

Qantas Airways

7.5

Good

905 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

FAQs about flying to Washington, D.C.

Can I find cheaper flights to Washington, D.C. if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Washington, D.C. on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to Washington, D.C.?
Based on reviews from Cheapflights users, American Airlines is rated the highest out of the airlines that fly to Washington, D.C..
What is the cheapest airport to fly to in Washington, D.C.?
Baltimore/Washington is currently the cheapest airport to fly to in Washington, D.C.. One-way flights to Baltimore/Washington typically cost $72, while return flights cost around $73.
How much is a return flight to Washington, D.C.?
A return flight to Washington, D.C. will typically cost around $959, however they can be found for as little as $953.
Where does the fastest flight to Washington, D.C. depart from?
For those looking to save time traveling to Washington, D.C., Brisbane offers the quickest one-way flight (19 hours 55 minutes).
Does Washington, D.C. Dulles Intl have car hire?
Yes. Those touching down at Washington, D.C. Dulles Intl can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Washington, D.C. Dulles Intl?
Yes. Washington, D.C. Dulles Intl has hotels nearby for those requiring accommodations. Sleepbox Lounge Iad, Dulles International Airport is the closest property to Washington, D.C. Dulles Intl (0.0 km away from Washington, D.C. Dulles Intl).

See more FAQs

Linthicum Heights

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights to Washington, D.C.?

When you search for this flight to Washington, D.C., Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

Cheapflights helps you find that perfect flight to Washington, D.C. by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Washington, D.C. with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to Washington, D.C., users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights to Washington, D.C. become cheaper?

Yes, Cheapflights offers price alerts on Washington, D.C. flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$678+ Cheap flights to Washington, D.C.

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Washington, D.C. in 2025

Find the latest flights to Washington, D.C. in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 29 August 2025.

Return from

One-way from

Popular in

Cheapest in

Average price

Find flight deals to Washington, D.C.

Cheapest flights to Washington, D.C.Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 29 August 2025.

Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 29 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights to Washington, D.C. that are best for you.

Best time to book a flight to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight to Washington, D.C.

When is the best time to book a flight to Washington, D.C.?

Use this chart to determine the optimal time to book a return flight from Sydney to Washington, D.C.. Price data was last updated on 22 August 2025.

How long is the flight to Washington, D.C.?

When is the cheapest time to fly to Washington, D.C.?

Use this chart to determine the cheapest time to fly return from Sydney to Washington, D.C.. Price data was last updated on 16 December 2024.

What are the most popular airlines that fly to Washington, D.C.?

What are the cheapest airlines that fly to Washington, D.C.?

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines serving the United States, such as Qantas Airways, Virgin Australia, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to Washington, D.C.

Can I find cheaper flights to Washington, D.C. if I am willing to have stopovers?

What is the best airline to fly to Washington, D.C.?

What is the cheapest airport to fly to in Washington, D.C.?

How much is a return flight to Washington, D.C.?

Where does the fastest flight to Washington, D.C. depart from?

Does Washington, D.C. Dulles Intl have car hire?

Are there hotels close to Washington, D.C. Dulles Intl?

Travelling to a place near Washington, D.C.?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Airports serving Washington, D.C.

Book a flight to or from one of these Washington, D.C. airports.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Washington, D.C.?

Why should you use Cheapflights to find cheap flight tickets to Washington, D.C.?

Can Cheapflights find flights to Washington, D.C. with no change fees?

Can Cheapflights notify me if prices for flights to Washington, D.C. become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights to Washington, D.C.
Explore the most affordable flight options available to Washington, D.C.. Find the lowest fares based on data from user searches, with prices last updated on 29 August 2025.