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Find cheap flights from Washington Dulles Airport to Belfast - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Nonstop flights
Not available
There are currently no direct flights between Washington, D.C. Dulles Intl Airport and Belfast. You'll need to take a connecting flight to reach the destination.
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Top routes
IAD - BFS
Cheapest • 13% average savings
IAD - BHD
Most popular
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When to travel
April
Cheapest • 30% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $1,025 (round-trip)
Amsterdam Schiphol (AMS)
Shortest trip • 12h 07m (one-way)
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Flight Deals

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

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

Recent round-trip flight deals from Dulles Intl to Belfast

Multiple Airlines Logo
IAD  Washington Dulles Airport-BF1 Bere Ferrers
3388 mimulti-stop
Multiple Airlines Logo
BF1  Bere Ferrers-IAD Washington Dulles Airport
3388 mimulti-stop
Multiple Airlines
Booking Insights

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

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

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Belfast. It’s 19% cheaper than the average day, while Wednesday is the most expensive, with prices 24% higher.

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

Low season

July
Beat the crowds with an average 43% drop in travelers.
The most popular month to fly with an average 71% increase in travelers.

When to book flights from Dulles Intl to Belfast

Are your dates flexible? Find out the best times to travel from Dulles Intl 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. Dulles Intl Airport 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. Dulles Intl Airport to Belfast?

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

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

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Belfast takes 00m, covering 3,388 miles.

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

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Belfast range from $878 to $1,212, with an average of $1,106 over the past 12 months. Anything below $878 counts as a good deal.

  • 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 from around $13:

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

    Near Belfast Intl Airport (BFS) — daily rates from around $11:

    • Budget
    • DRIVALIA
    • Sixt
    • Alamo
    • Hertz

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

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

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

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

    • London Heathrow (LHR) - 73% of one-stop connections
    • Amsterdam Schiphol (AMS) - 28% of one-stop connections

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

    Yes. Flexible dates can save you up to 35% on flights from Washington, D.C. Dulles Intl Airport to Belfast. Tuesday is the cheapest departure day at $897 round-trip on average, while Wednesday is the most expensive at $1,373, a difference of $476.

    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. Dulles Intl Airport to Belfast?

    Flying via London Heathrow (LHR) gives the shortest average 1-stop total travel time at 11h 19m, compared with 12h 07m via Amsterdam Schiphol (AMS).

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

    Belfast is 5 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?

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

Your guide to booking Washington, D.C. Dulles Intl Airport 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 $476 less than Wednesday fares (35% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport 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 Dulles Intl to Belfast

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

Car rentals in Belfast
Hotels in Belfast
Vacations in Belfast