WAS - BFS

$411 Find Cheap Flights from Washington, D.C. 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
$827
Typical prices: $779-$878
Multiple Airlines
Sun 12/9Sun 12/16
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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Booking Insights
Flight Deals

Cheap Flights from Washington, D.C. to Belfast Intl (WAS-BFS)

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

Recent round-trip flight deals from Washington, D.C. to Belfast Intl

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
Thu, Nov 12 - Thu, Nov 19
Multiple Airlines Logo
5:25 pm - 7:50 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 25m3 stops Lisbon Humberto Delgado Barcelona-El Prat Manchester
Multiple Airlines Logo
9:00 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
27h 05m3 stops London Luton Sevilla Casablanca Mohamed V
$876Multiple 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
Thu, Nov 12 - Thu, Nov 19
Multiple Airlines Logo
5:25 pm - 8:20 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 55m2 stops Lisbon Humberto Delgado Manchester
Multiple Airlines Logo
9:00 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
27h 05m3 stops London Luton Sevilla Casablanca Mohamed V
$962Multiple Airlines
Sun, Nov 15 - Sat, Nov 21
Multiple Airlines Logo
7:40 pm - 8:45 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
20h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Birmingham
Multiple Airlines Logo
12:30 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
35h 35m2 stops Malaga Casablanca Mohamed V
$974Multiple Airlines
Sun, Nov 15 - Sat, Nov 21
Multiple Airlines Logo
7:40 pm - 9:25 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
20h 45m2 stops Reykjavik Keflavik Intl London Gatwick
Multiple Airlines Logo
12:30 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
35h 35m2 stops Malaga Casablanca Mohamed V
$982Multiple 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
Sun, Nov 15 - Sat, Nov 21
Multiple Airlines Logo
7:40 pm - 8:35 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
19h 55m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen London Stansted
Multiple Airlines Logo
3:25 pm - 8:35 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
34h 10m3 stops London Stansted Sevilla Lisbon Humberto Delgado
$1,005Multiple Airlines
Fri, Dec 11 - Fri, Dec 18
Multiple Airlines Logo
7:40 pm - 9:55 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 15m2 stops Reykjavik Keflavik Intl Glasgow Intl
Multiple Airlines Logo
6:00 am - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
18h 05m2 stops Alicante Casablanca Mohamed V
$1,011Multiple Airlines
Thu, Nov 12 - Thu, Nov 19
Multiple Airlines Logo
5:25 pm - 8:20 pmIAD  Washington, D.C. Dulles Intl-BFS Belfast Intl
21h 55m2 stops Lisbon Humberto Delgado Manchester
Multiple Airlines Logo
2:40 pm - 7:05 pmBFS  Belfast Intl-IAD Washington, D.C. Dulles Intl
33h 25m2 stops Manchester Casablanca Mohamed V
$1,018Multiple Airlines
Booking Insights

Price, demand and travel trends for Washington, D.C. to Belfast Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Washington, D.C. to Belfast Intl Airport flight route?

There's little price difference between Washington, D.C. to Belfast Intl Airport routes. They average around $878 round-trip, based on KAYAK data over the past 12 months.

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Key details for Washington, D.C. 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 Washington, D.C. to Belfast Intl

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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. 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. to Belfast Intl Airport?

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

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

    One-way fares from Washington, D.C. 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. to Belfast Intl Airport?

    Flights from Washington, D.C. to Belfast Intl Airport may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD). Flights usually arrive at Belfast Intl (BFS).

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

    Yes. Flexible dates can save you up to 12% on flights from Washington, D.C. 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. and Belfast Intl Airport?

    Belfast Intl Airport is 4 hours ahead of Washington, D.C. (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. 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 Washington, D.C. to Belfast Intl

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