$411 Find Cheap Flights from Washington, D.C. to Belfast - Compare and Save

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Everything you should know

Cheapest round-trip
$807
Typical prices: $878-$1,179
Multiple Airlines
Fri 11/23Sat 12/8
IAD - BFS • 2 stops
Cheapest one-way
$411
Typical prices: $420-$629
Multiple Airlines
Tue 11/13
IAD - BFS • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. and Belfast. You'll need to take a connecting flight to reach the destination.
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Top routes
IAD - BFS
Cheapest • 11% average savings
IAD - BHD
Most popular
Insights
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When to travel
April
Cheapest • 28% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $1,026 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 11h 59m (one-way)
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Insights
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Flight Deals

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

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

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

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
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
7:40 pm - 8:30 pmIAD  Washington, D.C. Dulles Intl-BHD Belfast City
19h 50m3 stops Reykjavik Keflavik Intl Oslo Gardermoen London Gatwick
Multiple Airlines Logo
6:20 pm - 7:05 pmBHD  Belfast City-IAD Washington, D.C. Dulles Intl
29h 45m3 stops Manchester Alicante Casablanca Mohamed V
$841Multiple 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
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
7:40 pm - 9:05 pmIAD  Washington, D.C. Dulles Intl-BHD Belfast City
20h 25m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
5:15 pm - 7:05 pmBHD  Belfast City-IAD Washington, D.C. Dulles Intl
30h 50m3 stops Amsterdam Schiphol Madrid Barajas Casablanca Mohamed V
$936Multiple Airlines
Mon, Nov 23 - Tue, Dec 8
Multiple Airlines Logo
7:40 pm - 5:20 pmIAD  Washington, D.C. Dulles Intl-BHD Belfast City
16h 40m2 stops Reykjavik Keflavik Intl Manchester
Multiple Airlines Logo
2:20 pm - 6:30 pmBHD  Belfast City-IAD Washington, D.C. Dulles Intl
33h 10m2 stops London Gatwick Reykjavik Keflavik Intl
$956Multiple 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
Booking Insights

Price, demand and travel trends for Washington, D.C. to Belfast 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 flight route?

Washington, D.C. Dulles Intl Airport (IAD) to Belfast Intl Airport (BFS) is the cheapest Washington, D.C. to Belfast route, averaging $878 round-trip. Other Washington, D.C. to Belfast routes average $1,085, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Washington, D.C. to Belfast?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Washington, D.C. to Belfast. It’s 17% cheaper than the average day, while Wednesday is the most expensive, with prices 11% higher.

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

Low season

July

Cheapest flight

$411
Beat the crowds with an average 71% drop in travelers.
The most popular month to fly with an average 54% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Belfast Intl Airport

When to book flights from Washington, D.C. to Belfast

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

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

  • How long is a flight from Washington, D.C. to Belfast?

    A nonstop flight from Washington, D.C. to Belfast takes 00m, covering 3,374 miles.

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

    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.

  • How much should I expect to pay for a Washington, D.C. to Belfast flight?

    Round-trip flights from Washington, D.C. to Belfast range from $878 to $1,179, with an average of $1,071 over the past 12 months. Anything below $878 counts as a good deal.

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

    One-way fares from Washington, D.C. to Belfast are currently higher than usual. Average one-way flight prices are about $846, which is 63% above the typical average for this route.

  • What car rental options are available in Belfast?

    Since Belfast is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Belfast City Airport (BHD) — daily rates averaging $42:

    • Budget
    • Sixt
    • Enterprise Rent-A-Car
    • Avis
    • Hertz

    Near Belfast Intl Airport (BFS) — daily rates averaging $37:

    • Budget
    • DRIVALIA
    • Sixt
    • Alamo
    • Hertz

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

    Flights from Washington, D.C. to Belfast may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD), with arrivals available at Belfast area airports such as Belfast Intl (BFS) and Belfast City (BHD).

  • Which airports do connecting flights from Washington, D.C. to Belfast pass through?

    Connecting flights from Washington, D.C. to Belfast most commonly pass through:

    • London Heathrow (LHR) - 71% of one-stop connections
    • Amsterdam Schiphol (AMS) - 29% of one-stop connections

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

    Yes. Flexible dates can save you up to 25% on flights from Washington, D.C. to Belfast. Tuesday is the cheapest departure day at $897 round-trip on average, while Wednesday is the most expensive at $1,191, a difference of $294.

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

  • How much time can I save by choosing a different layover airport from Washington, D.C. to Belfast?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time at 11h 25m, compared with 11h 59m via Amsterdam Schiphol (AMS).

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

    Belfast 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?

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

Your guide to booking Washington, D.C. to Belfast 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 Wednesday. On this route, Tuesday flights average $897, about $294 less than Wednesday fares (25% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. to Belfast trip for April. Fares historically average $773 round-trip in that month - typically $705 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Belfast City Airport.

    • Titanic Hotel Belfast
    • Park Avenue
    • Premier Inn Belfast Titanic Quarter

More options for your flight from Washington, D.C. to Belfast

Complete your trip to Belfast with a hotel stay or car rental

Car rentals in Belfast
Hotels in Belfast
Vacations in Belfast