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Cheap flights from Belfast Intl Airport to District of Columbia from £661

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Belfast Intl Airport to District of Columbia departing on 6/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Belfast Intl Airport to District of Columbia

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:30 - 21:00BFS-IAD
41h 30m3 stops
Multiple Airlines Logo
09:45 - 10:55IAD-BFS
20h 10m2 stops
£661Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec
Multiple Airlines Logo
06:00 - 19:30BFS-IAD
18h 30m2 stops
Multiple Airlines Logo
17:05 - 16:10IAD-BFS
18h 05m2 stops
£682Multiple Airlines
Find Deal
Sat, 6 Dec - Sat, 13 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Belfast Intl Airport to District of Columbia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 24 October 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 6/12

08:30-21:00

3 stops41h 30m

Washington, D.C. Dulles Intl

Sat 13/12

09:45-10:55

2 stops20h 10m

£661

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 6/12

06:00-19:30

2 stops18h 30m

Washington, D.C. Dulles Intl

Sat 13/12

17:05-16:10

2 stops18h 05m

£682

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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How to get the cheapest flight ticket from Belfast Intl Airport to District of Columbia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to District of Columbia?

Our data shows that Friday is the least expensive day to fly to District of Columbia. Tickets to fly out on this day can be as low as £742. Flights from Belfast Intl Airport to District of Columbia on a Monday will generally be more expensive and average around £1,048. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Cheap Belfast Intl Airport to District of Columbia flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Belfast Intl Airport to District of Columbia

Direct flights

None
There are no direct flights from Belfast Intl Airport to District of Columbia. There are no popular flight routes from Belfast Intl Airport to District of Columbia.
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  • When did momondo last update prices for flights from Belfast Intl Airport to District of Columbia?

    Prices for flights from Belfast Intl Airport to District of Columbia refresh daily.

  • How old do you have to be to fly from Belfast Intl Airport to District of Columbia?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast Intl Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The necessary travel and health documents for your District of Columbia trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Belfast to District of Columbia?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Belfast to District of Columbia. momondo saves you time and could save you money on your trip.

Can I find flights from Belfast to District of Columbia with flexible booking policies on momondo?

Yes. All flights to District of Columbia from Belfast on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Belfast to District of Columbia?

momondo helps you find the best flight between Belfast and District of Columbia by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Belfast to District of Columbia right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Belfast to District of Columbia now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to District of Columbia and let you know when they change.

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