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$127+ 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 9/8. 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
23 Jul — 30 Jul1
1 adult
1 adult, Economy, 0 bags

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 23 June 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Mon 23/11

13:00-18:04

1 stop7h 04m

Denver Intl

Tue 24/11

00:59-09:11

1 stop6h 12m

$644

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 5/11

07:00-14:16

1 stop9h 16m

Denver Intl

Sun 8/11

06:30-16:17

1 stop7h 47m

$664
Fastest return journey

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 12/8

14:43-16:33

Nonstop3h 50m

Denver Intl

Sat 15/8

15:40-21:08

Nonstop3h 28m

$670

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sat 8/8

17:41-19:45

Nonstop4h 04m

Denver Intl

Thu 13/8

15:40-21:08

Nonstop3h 28m

$670

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 9/10

17:27-19:30

Nonstop4h 03m

Denver Intl

Sun 11/10

23:52-05:17

Nonstop3h 25m

$690

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Wed 2/9

22:34-00:30

Nonstop3h 56m

Denver Intl

Sun 6/9

08:00-13:30

Nonstop3h 30m

$690

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Sun 19/7

19:20-21:27

Nonstop4h 07m

Denver Intl

Tue 21/7

23:59-05:27

Nonstop3h 28m

$775

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Fri 10/7

19:26-00:23

1 stop6h 57m

Denver Intl

Thu 16/7

00:40-09:26

1 stop6h 46m

$790

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Thu 23/7

22:23-00:30

Nonstop4h 07m

Denver Intl

Wed 29/7

13:53-19:22

Nonstop3h 29m

$798

Washington, D.C.Denver

IAD - DEN

IADDEN

Washington, D.C. Dulles Intl

Tue 24/11

14:19-16:26

Nonstop4h 07m

Denver Intl

Sun 29/11

23:59-05:19

Nonstop3h 20m

$818

Flights are sorted by cheapest return flights first.

Deals found on 21/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of $1,485). Flying from Washington, D.C. Dulles Intl Airport in December will prove the most costly (average of $3,227). 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 $1,852

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

Washington, D.C. Dulles Intl Airport offers frequent flights to London (368 flights per day), Chicago (322 flights per day) and Atlanta (278 flights per day).

New Delhi Indira Gandhi Intl
New Delhi Indira Gandhi Intl
From $621
Toronto
Toronto
From $135
Albany Intl
Albany Intl
From $491
Salt Lake City
Salt Lake City
From $499

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 Toronto, with prices starting at $135. Explore other affordable destinations below.

Toronto
Toronto
From $135
Orlando
Orlando
From $218
Minneapolis St Paul
Minneapolis St Paul
From $262
Albany Intl
Albany Intl
From $491

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

The best time to book flights from Washington, D.C. Dulles Intl Airport is 4 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.

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
9,875 reviews
Check prices

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,875 reviews
United Airlines
7.4
Good
9,875 reviews
Check prices

Food

6.6

Crew

8.1

Overall

7.4

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Browse thousands of different options on Cheapflights for your next trip

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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 23 June 2026.
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 23 June 2026.

  • 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 Casablanca, Cairo, Mumbai. Mumbai, Cairo, Casablanca 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 $135 to Toronto Island Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for $387 to fly from Washington, D.C. Dulles Intl Airport.

  • 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 November. The most expensive month for flights is December. 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 $1,346 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!

See more FAQs

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 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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