IAD - BHD

$628 Find Cheap Flights from Washington Dulles Airport to Belfast City Airport

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Belfast City departing on 9/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast City Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Belfast, as well as popular online travel agencies
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Flights Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Belfast City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

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

Sat, Sep 6 - Sat, Dec 20
American Airlines Logo
10:45 pm - 3:05 pmIAD-BHD
11h 20m1 stop
American Airlines Logo
9:10 am - 3:35 pmBHD-IAD
11h 25m1 stop
$628American Airlines
Find Deal
Wed, Sep 10 - Thu, Sep 18
British Airways Logo
5:50 pm - 11:55 amIAD-BHD
13h 05m1 stop
British Airways Logo
2:15 pm - 8:10 pmBHD-IAD
10h 55m1 stop
$629British Airways
Find Deal
Thu, Aug 7 - Sat, Aug 23
American Airlines Logo
5:55 pm - 9:20 amIAD-BHD
10h 25m1 stop
American Airlines Logo
7:05 am - 8:15 pmBHD-IAD
18h 10m1 stop
$631American Airlines
Find Deal
Thu, Aug 7 - Sat, Aug 23
American Airlines Logo
8:19 pm - 3:30 pmIAD-BHD
14h 11m2 stops
American Airlines Logo
7:05 am - 8:15 pmBHD-IAD
18h 10m1 stop
$636American Airlines
Find Deal
Sat, Sep 6 - Sat, Dec 20
British Airways Logo
2:21 pm - 12:15 pmIAD-BHD
16h 54m2 stops
British Airways Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$663British Airways
Find Deal
Wed, Nov 12 - Sun, Nov 16
Virgin Atlantic Logo
5:35 pm - 4:50 pmIAD-BHD
18h 15m1 stop
Virgin Atlantic Logo
6:30 am - 3:45 pmBHD-IAD
14h 15m1 stop
$705Virgin Atlantic
Find Deal
Wed, Nov 12 - Sun, Nov 16
Virgin Atlantic Logo
5:00 pm - 9:00 pmIAD-BHD
23h 00m2 stops
Virgin Atlantic Logo
5:20 pm - 3:45 pmBHD-IAD
27h 25m1 stop
$710Virgin Atlantic
Find Deal
Wed, Nov 26 - Mon, Dec 1
Delta Logo
5:10 pm - 4:50 pmIAD-BHD
18h 40m2 stops
Delta Logo
6:30 am - 11:00 pmBHD-IAD
21h 30m2 stops
$823Delta
Find Deal
Wed, Sep 10 - Thu, Sep 18
Aer Lingus Logo
5:20 pm - 11:55 amIAD-BHD
13h 35m2 stops
Aer Lingus Logo
6:45 am - 8:10 pmBHD-IAD
18h 25m1 stop
$883Aer Lingus
Find Deal
Tue, Oct 28 - Tue, Nov 4
Aer Lingus Logo
10:00 pm - 4:25 pmIAD-BHD
14h 25m2 stops
Aer Lingus Logo
6:00 pm - 3:35 pmBHD-IAD
26h 35m2 stops
$918Aer Lingus
Find Deal
Useful Info

KAYAK's insights & trends for Dulles Intl to Belfast City flights

Get data-powered insights and trends into flights from Dulles Intl to Belfast City to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Belfast City Airport?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Belfast City Airport were found on American Airlines ($628) and British Airways ($629).

Good to know

High seasonJune
Cheapest flight$628
Most popular time to fly with an average 34% increase in price.
Flight from Washington Dulles Airport to Belfast City Airport

When to book flights from Dulles Intl to Belfast City

Are your dates flexible? Find out the best times to travel from Dulles Intl to Belfast City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Belfast City Airport flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Belfast City Airport?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Belfast City Airport was $800 for a one-way ticket and $628 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Belfast City Airport?

    Yes, you’ll need a passport to travel to Belfast City Airport from Washington Dulles Airport.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Belfast City Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Belfast City Airport?

    oneworld, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Belfast City Airport, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Belfast City Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Belfast City Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Belfast City Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast City Airport from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Belfast City Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Belfast City Airport with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and BHD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Belfast City Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Belfast City Airport from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Belfast City

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Belfast City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
6.6
British AirwaysOverall score based on 7056 reviews
6.7Comfort
6.3Food
6.8Boarding
6.4Entertainment
7.6Crew
Airline reviews

The entertainment selection was ok, but overall not bad! The crew was great.

10.0 ExcellentAnonymous, Jun 2025EWR - LHR
Read more British Airways reviews

The entertainment selection was ok, but overall not bad! The crew was great.

Good crew and boarding process. Horrible food and one of the most uncomfortable aircraft seats I have ever sat in. The cabin temperature was warm which made it hard for my family to sleep.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

More Indian vegetarian food options would have been better Availability of seat selection free of charge 72 hours before departure would be great

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

Everything you need to know for your flight from Dulles Intl to Belfast City

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