IAD - BFS

$411 Find Cheap Flights from Washington Dulles Airport to Belfast Intl Airport - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$807
Typical prices: $779-$878
Multiple Airlines
Fri 11/23Sat 12/8
IAD - BFS • 2 stops
Cheapest one-way
$411
Typical prices: $265-$394
Multiple Airlines
Tue 11/13
IAD - BFS • 3 stops
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Flight Deals
Useful Info
Flight Deals

Cheap Flights from Dulles Intl to Belfast Intl (IAD-BFS)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Belfast Intl

Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
7:40 pm - 7:10 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
18h 30m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
7:40 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 25m3 stops Birmingham Alicante Casablanca Mohamed V
$807Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
7:40 pm - 10:20 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 40m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
6:25 am - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
17h 05m2 stops London Gatwick Reykjavik Keflavik Intl
$827Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
7:40 pm - 2:05 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
13h 25m2 stops Reykjavik Keflavik Intl Amsterdam Schiphol
Multiple Airlines Logo
7:00 am - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
16h 30m2 stops Amsterdam Schiphol Reykjavik Keflavik Intl
$831Multiple Airlines
Wed, Dec 9 - Wed, Dec 16
Multiple Airlines Logo
7:40 pm - 9:45 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 05m3 stops Reykjavik Keflavik Intl Gdansk Rebiechowo London Stansted
Multiple Airlines Logo
6:25 am - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
17h 05m2 stops London Gatwick Reykjavik Keflavik Intl
$924Multiple Airlines
Sun, Jan 24 - Sat, Feb 13
Multiple Airlines Logo
7:40 pm - 9:40 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 00m3 stops Reykjavik Keflavik Intl Oslo Gardermoen Manchester
Multiple Airlines Logo
7:05 pm - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 25m3 stops London Stansted Kastrup Copenhagen Reykjavik Keflavik Intl
$958Multiple Airlines
Fri, Dec 11 - Fri, Dec 18
Multiple Airlines Logo
7:40 pm - 6:35 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
17h 55m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen London Stansted
Multiple Airlines Logo
6:00 am - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
18h 05m2 stops Alicante Casablanca Mohamed V
$960Multiple Airlines
Tue, Apr 13 - Tue, Apr 20
Multiple Airlines Logo
8:45 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
15h 35m2 stops Dublin Bristol
Multiple Airlines Logo
7:20 pm - 7:00 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 40m3 stops London Luton Barcelona-El Prat Casablanca Mohamed V
$963Multiple Airlines
Sun, Jan 24 - Sat, Feb 13
Multiple Airlines Logo
7:40 pm - 9:40 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 00m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
7:05 pm - 6:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
28h 25m3 stops London Stansted Kastrup Copenhagen Reykjavik Keflavik Intl
$974Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
6:40 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
11h 50m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
7:05 am - 4:30 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
14h 25m1 stop Paris Charles de Gaulle
$986Multiple Airlines
Sat, Dec 12 - Sat, Dec 19
Multiple Airlines Logo
7:40 pm - 8:55 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
20h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
7:05 pm - 8:35 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
30h 30m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado
$996Multiple Airlines
Useful Info

Key details for Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flights

Cheapest flight

$411
One-way flight from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport

When to book flights from Dulles Intl to Belfast Intl

Are your dates flexible? Find out the best times to travel from Dulles Intl to Belfast Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

    Only Economy Class is available on flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • Have flight prices from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route varied from about $827 to $1,648. That means the highest observed fare was about 99% higher than the lowest one.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport are currently higher than usual. Average one-way flight prices are about $438, which is 16% above the typical average for this route.

  • What car rental options are available at Belfast Intl Airport (BFS)?

    Belfast Intl Airport (BFS) hosts 5 major car rental companies, with daily rates averaging $37 for economy cars. Top options include:

    • Budget
    • DRIVALIA
    • Sixt
    • Alamo
    • Hertz

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

    Flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Belfast Intl (BFS).

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport?

    Yes. Flexible dates can save you up to 12% on flights from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport. Tuesday is the cheapest departure day at $779 round-trip on average, while Friday is the most expensive at $878, a difference of $99.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Belfast Intl Airport?

    Belfast Intl Airport is 4 hours ahead of Washington, D.C. Dulles Intl Airport (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Belfast Intl Airport?

    Some of the most popular sights in Belfast Intl Airport are Ormeau Park, Ulster Hall and Titanic Belfast. These are among the most viewed places in Belfast Intl Airport on KAYAK.

Your guide to booking Washington, D.C. Dulles Intl Airport to Belfast Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $779, about $99 less than Friday fares (11% savings) based on the last 12 months.

More options for your flight from Dulles Intl to Belfast Intl

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