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$140+ Cheap flights from Washington, D.C. Dulles Intl Airport

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
IAD — SYD
21 Nov — 28 Nov1
1 adult
1 adult, Economy

What to know about flights from Dulles Intl

Discover essential information about flights departing from Dulles Intl, including flight schedules, destinations, airlines operating at the Dulles Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 22 October 2025.

Good round-trip deal

$530 or less

Good one-way deal

$602 or less
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Washington, D.C. Dulles Intl.
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Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl
Explore the most affordable flight options available from Dulles Intl. Find the lowest fares based on data from user searches, with prices last updated on 22 October 2025.

Tue 18/1121:10IAD - ISB
1 stop35h 05mEtihad Airways
Thu 4/1204:30ISB - IAD
1 stop21h 00mEtihad Airways
Deal found 20/10$1,156
Tue 11/1121:10IAD - ISB
1 stop35h 05mEtihad Airways
Sun 25/104:30ISB - IAD
1 stop21h 00mEtihad Airways
Deal found 20/10$1,159
Sat 15/1121:15IAD - ISB
1 stop25h 35mTurkish Airlines
Fri 30/110:20ISB - IAD
1 stop35h 25mTurkish Airlines
Deal found 20/10$1,169
Tue 13/121:10IAD - ISB
1 stop35h 05mEtihad Airways
Sun 1/304:30ISB - IAD
1 stop21h 00mEtihad Airways
Deal found 19/10$1,192
Thu 12/314:30IAD - ISB
1 stop29h 15mTurkish Airlines
Mon 16/310:20ISB - IAD
1 stop35h 25mTurkish Airlines
Deal found 20/10$1,221
Fri 14/1118:10IAD - ISB
1 stop28h 00mSAUDIA
Wed 28/117:50ISB - IAD
1 stop30h 55mSAUDIA
Deal found 20/10$1,229
Mon 10/1121:10IAD - ISB
1 stop35h 05mEtihad Airways
Sun 25/104:30ISB - IAD
1 stop21h 00mEtihad Airways
Deal found 20/10$1,232
Mon 5/114:35IAD - ISB
1 stop17h 40mEtihad Airways
Wed 4/204:30ISB - IAD
1 stop21h 00mEtihad Airways
Deal found 20/10$1,233
Sun 30/1120:05IAD - ISB
1 stop19h 35mJetBlue
Sat 20/1203:10ISB - IAD
1 stop22h 45mJetBlue
Deal found 20/10$1,241
Fri 7/1118:10IAD - ISB
1 stop28h 00mSAUDIA
Thu 26/302:00ISB - IAD
1 stop46h 45mSAUDIA
Deal found 20/10$1,267
Mon 12/114:35IAD - ISB
1 stop17h 40mEtihad Airways
Wed 21/104:30ISB - IAD
1 stop38h 35mEtihad Airways
Deal found 21/10$1,302
Mon 2/322:05IAD - SYD
1 stop43h 00mUnited Airlines
Mon 4/510:20SYD - IAD
1 stop22h 40mUnited Airlines
Deal found 22/10$1,322

Find flights from Dulles Intl within your budget

 
Find flights departing from Dulles Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 22 October 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Tue 18/11

21:10-18:15

1 stop35h 05m

Islamabad Intl

Tue 16/12

04:30-15:30

1 stop21h 00m

$1,156

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Thu 12/3

14:30-04:45

1 stop29h 15m

Islamabad Intl

Mon 16/3

10:20-12:45

1 stop35h 25m

$1,221

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Mon 1/12

21:10-03:10

1 stop20h 00m

Islamabad Intl

Thu 12/2

04:30-15:30

1 stop21h 00m

$1,232

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Fri 7/11

18:10-08:10

1 stop28h 00m

Islamabad Intl

Thu 26/3

02:00-15:45

1 stop46h 45m

$1,267

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Mon 3/11

18:10-08:10

1 stop28h 00m

Islamabad Intl

Tue 24/3

02:00-15:45

1 stop46h 45m

$1,267

Washington, D.C.Islamabad

IAD - ISB

IADISB

Washington, D.C. Dulles Intl

Fri 14/11

18:10-08:10

1 stop28h 00m

Islamabad Intl

Sat 6/12

09:50-14:45

1 stop62h 55m

$1,267

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Mon 29/12

22:05-09:05

1 stop43h 00m

Sydney Kingsford Smith

Mon 2/2

14:00-19:35

1 stop21h 35m

$1,322

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 6/12

12:30-08:30

2 stops28h 00m

Sydney Kingsford Smith

Sat 13/12

10:40-21:29

2 stops26h 49m

$1,326

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Sat 21/2

13:00-06:50

2 stops25h 50m

Sydney Kingsford Smith

Thu 26/3

09:40-18:42

2 stops24h 02m

$1,326

Washington, D.C.Sydney

IAD - SYD

IADSYD

Washington, D.C. Dulles Intl

Fri 14/11

12:55-07:00

1 stop26h 05m

Sydney Kingsford Smith

Fri 21/11

11:20-22:12

2 stops26h 52m

$1,326

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 60 results
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Best time to book a flight from Dulles Intl

Have a flexible travel schedule? Discover the best time to fly from Dulles Intl 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.

Travel insights for flights from Dulles Intl

Get recent, data-driven insights about flights from Dulles Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Sydney. Price data was last updated on 17 October 2025.

The best time to book flights from Washington, D.C. Dulles Intl Airport is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport?

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of $993). Flying from Washington, D.C. Dulles Intl Airport in January will prove the most costly (average of $1,327). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Washington, D.C. Dulles Intl Airport?

When flying from Washington, D.C. Dulles Intl Airport check dates and pricing for the following: United Airlines. As it departs for the following popular destinations: Sydney.

United Airlines
United Airlines
From $294

What are popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

Washington, D.C. Dulles Intl Airport offers frequent flights to Detroit (364 flights per day), Chicago (360 flights per day) and London (338 flights per day).

New Delhi Indira Gandhi Intl
New Delhi Indira Gandhi Intl
From $670
Zurich
Zurich
From $1,067
Albany Intl
Albany Intl
From $530
Abu Dhabi Zayed Intl
Abu Dhabi Zayed Intl
From $986

What is the cheapest place to fly to from Washington, D.C. Dulles Intl Airport?

The cheapest city to fly to from Washington, D.C. Dulles Intl Airport is Los Angeles, with prices starting at $336. Explore other affordable destinations below.

Los Angeles
Los Angeles
From $336
Albany Intl
Albany Intl
From $530
Lisbon Humberto Delgado
Lisbon Humberto Delgado
From $538
New Delhi Indira Gandhi Intl
New Delhi Indira Gandhi Intl
From $670

Airline reviews for flights from Dulles Intl

Get insights into the airlines that provide service from Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Dulles Intl. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Read reviews from past customers who have flown United Airlines from Washington, D.C. Dulles Intl Airport. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,990 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,990 reviews
United Airlines
7.4
Good
8,990 reviews
Check prices

Entertainment

7.1

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sept 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

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Alternate flight departure points to Dulles Intl

Consider leaving from one of these other departure points that are located a short distance from Dulles Intl. Flight origins were last updated on 22 October 2025.
Flights from Reagan-National

Related info for your journey

Access useful and relevant information related to your journey from Dulles Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 22 October 2025.

  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    For the current month, the most popular flights from Washington, D.C. Dulles Intl Airport are Cairo, Mumbai, Atlanta. Mumbai, Cairo, Ahmedabad are the most popular locations from Washington, D.C. Dulles Intl Airport year round.

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to anywhere?

    Users have flown out of Washington, D.C. Dulles Intl Airport for as low as $336 to Los Angeles (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,820 to fly from Washington, D.C. Dulles Intl Airport.

  • What is the cheapest premium economy flight from Washington, D.C. Dulles Intl Airport?

    Options for some of the cheapest premium economy flights from Washington, D.C. Dulles Intl Airport we have found on Cheapflights are as follows:
    Fly from Washington, D.C. Dulles Intl to Frankfurt am Main Airport starting at $2,505
    Fly from Washington, D.C. Dulles Intl to London Heathrow Airport starting at $2,568

  • What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport?

    Currently, the cheapest month for flights from Washington, D.C. Dulles Intl Airport is December. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Washington, D.C. Dulles Intl Airport?

    View the cheapest flight destinations from Washington, D.C. Dulles Intl Airport:
    Fly from Washington, D.C. to Sydney from $1,298 round trip
    Fly from Washington, D.C. to Melbourne from $2,114 round trip

  • How does Cheapflights help users find flights from Dulles Intl?

    Cheapflights helps you search for flights from Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

  • Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dulles Intl for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Dulles Intl with no change fees?

    Need flexible booking options for your flight from Dulles Intl ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

  • Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

    Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Dulles Intl today and book when you’re ready!

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Cheapflights helps you search for flights from Dulles Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dulles Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Dulles Intl with no change fees?

Need flexible booking options for your flight from Dulles Intl ? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Dulles Intl become cheaper?

Yes, Cheapflights has a feature called Price Alerts, which offers users the ability to be notified when flight prices change. Track prices for your flight from Dulles Intl today and book when you’re ready!

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