Dulles Intl

$61+ Cheap flights from Washington, D.C. Dulles Intl Airport

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 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — SEA
Jun 17 — Jun 241
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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 travelers. Please note that the information is based on the most recent updates available. Data last updated June 12, 2025.

Cheapest airline

American Airlines

Good round-trip deal

$62 or less

Good one-way deal

$38 or less
On average, American Airlines currently has the cheapest one-way flight from Washington, D.C. Dulles Intl (avg. price of $292).
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Washington, D.C. Dulles Intl.

Find flights from Dulles Intl

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 June 12, 2025.

Mon 7/79:58 pmIAD - MIA
Nonstop2h 47mFrontier
Fri 7/116:35 pmMIA - IAD
Nonstop2h 38mFrontier
Deal found 6/11$115
Tue 7/19:00 amIAD - MIA
Nonstop2h 49mUnited Airlines
Tue 7/81:30 pmMIA - IAD
Nonstop2h 40mUnited Airlines
Deal found 6/11$117
Sat 8/912:27 pmIAD - DFW
Nonstop3h 17mFrontier
Sun 8/106:05 amDFW - IAD
Nonstop3h 02mFrontier
Deal found 6/11$121
Sat 8/2311:51 amIAD - DFW
Nonstop3h 09mAmerican Airlines
Sat 8/233:00 pmDFW - IAD
Nonstop2h 56mAmerican Airlines
Deal found 6/12$134
Sun 7/137:30 amIAD - LAS
Nonstop4h 59mFrontier
Thu 7/1711:00 pmLAS - IAD
Nonstop4h 34mFrontier
Deal found 6/11$155
Sat 7/125:55 pmIAD - LAS
Nonstop5h 04mUnited Airlines
Wed 7/1611:59 pmLAS - IAD
Nonstop4h 35mUnited Airlines
Deal found 6/10$159
Thu 8/76:35 amIAD - ORD
Nonstop2h 14mUnited Airlines
Sat 8/99:31 pmORD - IAD
Nonstop1h 59mUnited Airlines
Deal found 6/11$169
Fri 7/118:45 amIAD - DFW
Nonstop3h 17mUnited Airlines
Tue 7/157:30 amDFW - IAD
Nonstop3h 02mUnited Airlines
Deal found 6/10$173
Wed 7/237:30 amIAD - LAS
Nonstop4h 59mMultiple Airlines
Wed 7/308:30 amLAS - IAD
1 stop7h 49mMultiple Airlines
Deal found 6/10$176
Mon 8/256:10 amIAD - SJU
1 stop8h 16mFrontier
Sat 8/303:21 pmSJU - IAD
1 stop8h 37mFrontier
Deal found 6/10$179
Wed 8/136:00 amIAD - ORD
1 stop5h 20mDelta
Tue 8/197:15 amORD - IAD
1 stop3h 17mDelta
Deal found 6/10$197
Sat 7/126:27 amIAD - ORD
1 stop7h 49mAmerican Airlines
Sat 7/124:59 pmORD - IAD
1 stop5h 59mAmerican Airlines
Deal found 6/11$198

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 June 12, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches

Fly to

Seattle

Route

Depart

Return

Price

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Mon 7/7

9:58 pm-12:45 am

Nonstop2h 47m

Miami

Thu 7/10

3:50 pm-6:28 pm

Nonstop2h 38m

$115

Washington, D.C.Miami

IAD - MIA

IADMIA

Washington, D.C. Dulles Intl

Tue 7/1

9:00 am-11:49 am

Nonstop2h 49m

Miami

Tue 7/8

1:30 pm-4:10 pm

Nonstop2h 40m

$117

Washington, D.C.Dallas

IAD - DFW

IADDFW

Washington, D.C. Dulles Intl

Sat 8/9

12:27 pm-2:44 pm

Nonstop3h 17m

Dallas/Fort Worth

Sun 8/10

6:05 am-10:07 am

Nonstop3h 02m

$121

Washington, D.C.Dallas

IAD - DFW

IADDFW

Washington, D.C. Dulles Intl

Sat 8/23

11:51 am-2:00 pm

Nonstop3h 09m

Dallas/Fort Worth

Sat 8/23

3:00 pm-6:56 pm

Nonstop2h 56m

$134

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 7/13

7:30 am-9:29 am

Nonstop4h 59m

Las Vegas Harry Reid Intl

Thu 7/17

11:00 pm-6:34 am

Nonstop4h 34m

$155

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 7/12

10:10 pm-12:14 am

Nonstop5h 04m

Las Vegas Harry Reid Intl

Sat 7/19

8:30 am-4:07 pm

Nonstop4h 37m

$159

Washington, D.C.Chicago

IAD - ORD

IADORD

Washington, D.C. Dulles Intl

Thu 8/28

5:10 pm-6:25 pm

Nonstop2h 15m

Chicago O'Hare Intl

Sun 8/31

10:43 am-1:49 pm

Nonstop2h 06m

$168

Washington, D.C.Dallas

IAD - DFW

IADDFW

Washington, D.C. Dulles Intl

Fri 7/11

8:45 am-11:02 am

Nonstop3h 17m

Dallas/Fort Worth

Tue 7/15

7:30 am-11:32 am

Nonstop3h 02m

$173

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 7/23

7:30 am-9:29 am

Nonstop4h 59m

Las Vegas Harry Reid Intl

Wed 7/30

8:30 am-7:19 pm

1 stop7h 49m

$176

Washington, D.C.San Juan

IAD - SJU

IADSJU

Washington, D.C. Dulles Intl

Mon 8/25

6:10 am-2:26 pm

1 stop8h 16m

San Juan Luis Munoz Marin Intl

Sat 8/30

3:21 pm-11:58 pm

1 stop8h 37m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 60 results
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Dulles Intl travel tips

Get helpful tips and advice for traveling to or from Dulles Intl. Find recommendations for transportation, accommodations, local attractions, dining options, and other practical tips to enhance your travel experience. Please note that the travel tips are based on general knowledge and recommendations. Data last updated June 12, 2025.
  • If you will be traveling with small children, keep in mind that Dulles International Airport (IAD) has a play area that is in Concourse B. It was created as a partnership with NASA and features a variety of games and activities for all ages.
  • Anyone traveling with pets will want to take note of the animal relief areas at Dulles International Airport (IAD). There are four outdoor zones that are near the various terminals, as well as two indoor areas that are near Gate A32 and Gate D1.
  • If you or someone that you are traveling with has a hidden disability, you can always pick up one of the sunflower lanyards from the Hidden Disabilities Desk in the USO Lounge, across from Baggage Claim 12. These lanyards help the airport employees to know if a traveler needs a bit of extra help.

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 round-trip 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 round-trip flight from Dulles Intl to Seattle. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport, you should look to book at least 66 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, April is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport (average of $158). Flying from Washington, D.C. Dulles Intl Airport in March will prove the most costly (average of $278). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Seattle. Price data was last updated on June 8, 2025.

Those who are seeking the cheapest fare on flights departing from Washington, D.C. Dulles Intl Airport would be wise to consider leaving during Sunday at noon when prices are typically at their lowest. When considering other options, price-conscious travelers should avoid Sunday mornings when fares are usually the most expensive.

Airline reviews for flights from Dulles Intl

Read reviews and ratings of airlines operating flights from Dulles Intl. Gain insights into the quality of service, in-flight amenities, customer experiences, and overall satisfaction to choose the best airline for your Dulles Intl travel. Please note that the reviews are sourced from user searches and were last updated on June 12, 2025. In the last 7 days, Cheapflights users made a total of 2,558,603 searches.

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
8.0
Very good

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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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 June 12, 2025.

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 June 12, 2025.
  • What are the most popular destinations to fly to from Washington, D.C. Dulles Intl Airport?

    This month, the top selected destinations from Washington, D.C. Dulles Intl Airport are Cairo, Amman, Athens. Throughout the year, Mumbai, Cairo, Ahmedabad are some of the top choices made by users flying from Washington, D.C. Dulles Intl Airport.

  • 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 $31 to Wilmington (prices may vary depending on the airline and departure time). On average, users have booked flights for $1,209 to fly from Washington, D.C. Dulles Intl Airport.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to anywhere?

    Over the past few days, we've found that Breeze Airways, Frontier, and Allegiant Air have the cheapest prices from Washington, D.C. Dulles Intl Airport. Breeze Airways flights from Washington, D.C. Dulles Intl Airport to Ogdensburg ($34), Frontier flights from Washington, D.C. Dulles Intl Airport to Atlanta Hartsfield-Jackson ($36), and Allegiant Air flights from Washington, D.C. Dulles Intl Airport to Austin Bergstrom ($37).

  • 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 Raleigh starting at $334
    Fly from Washington, D.C. Dulles Intl to Richmond starting at $361
    Fly from Washington, D.C. Dulles Intl to Cleveland starting at $379
    Fly from Washington, D.C. Dulles Intl to Rochester starting at $400

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

    If you’re looking for a cheap first-class flight from Washington, D.C. Dulles Intl Airport, consider Albany. Prices start at $278 so you can fly first-class even on a budget.

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

    April is currently the cheapest month to fly from Washington, D.C. Dulles Intl Airport. At this moment in time March is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.

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

    Check out the cheapest flights from Washington, D.C. Dulles Intl Airport to embark to:
    Fly from Washington, D.C. to Knoxville from $65 round trip
    Fly from Washington, D.C. to Asheville from $76 round trip
    Fly from Washington, D.C. to Jacksonville from $78 round trip
    Fly from Washington, D.C. to Nashville from $78 round trip
    Fly from Washington, D.C. to Savannah from $78 round trip

  • What transportation options are there for going from downtown Washington, D.C. to Dulles International Airport (IAD)?

    One of the quickest ways to get to the airport is by driving, which normally takes around 40min. You can also bus line 32 and the Silver metro line, which will take you to the airport in around 1h 15min.

  • What different parking options are available at Dulles International Airport (IAD)?

    There are a few different parking options to choose from, including standard short and long-term parking at each terminal. There is also an Economy parking lot, a valet option, and parking specifically for travelers with disabilities.

  • Is there an on-site hotel at Dulles International Airport (IAD)?

    Dulles International Airport (IAD) does not have its own on-site hotel, but it does have a variety of nearby hotels that have free shuttle services. For example, there is the Hilton Washington Dulles Airport that is less than a 10min drive away.

  • What different lounges are open to travelers at Dulles International Airport (IAD)?

    There are several lounges available at IAD, including lounges for Air France, British Airways, Lufthansa, United Airlines, and Virgin Atlantic.

See more FAQs

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