Cheap flights from Belfast Intl Airport to District of Columbia from £327

This is the cheapest one-way 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 20/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
Voted winner of Europe's Best Travel App 2023

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
16:25 - 15:10
BFS
-
IAD
27h 45m
2 stops
Multiple Airlines Logo
20:30 - 21:40
IAD
-
BFS
20h 10m
2 stops
£893Multiple Airlines
Fri, 17 Jul - Thu, 23 Jul
Multiple Airlines Logo
20:35 - 21:26
BFS
-
IAD
29h 51m
3 stops
Multiple Airlines Logo
17:15 - 16:30
IAD
-
BFS
18h 15m
2 stops
£907Multiple Airlines
Mon, 27 Jul - Fri, 31 Jul
Multiple Airlines Logo
10:00 - 20:00
BFS
-
IAD
15h 00m
1 stop
Multiple Airlines Logo
18:30 - 15:05
IAD
-
BFS
15h 35m
1 stop
£953Multiple Airlines
Mon, 27 Jul - Fri, 31 Jul
Multiple Airlines Logo
06:30 - 19:00
BFS
-
IAD
17h 30m
2 stops
Multiple Airlines Logo
18:15 - 21:15
IAD
-
BFS
22h 00m
2 stops
£1,000Multiple Airlines
Fri, 17 Jul - Fri, 24 Jul
Multiple Airlines Logo
06:30 - 19:00
BFS
-
IAD
17h 30m
2 stops
Multiple Airlines Logo
09:45 - 21:15
IAD
-
BFS
30h 30m
3 stops
£1,008Multiple Airlines
Fri, 17 Jul - Fri, 24 Jul
Multiple Airlines Logo
17:20 - 21:26
BFS
-
IAD
33h 06m
3 stops
Multiple Airlines Logo
09:45 - 21:15
IAD
-
BFS
30h 30m
3 stops
£1,024Multiple Airlines
Fri, 17 Jul - Fri, 24 Jul
Multiple Airlines Logo
08:40 - 19:20
BFS
-
IAD
15h 40m
2 stops
Multiple Airlines Logo
22:55 - 23:20
IAD
-
BFS
19h 25m
1 stop
£1,026Multiple Airlines
Mon, 27 Jul - Fri, 31 Jul
Multiple Airlines Logo
19:20 - 22:31
BFS
-
DCA
32h 11m
3 stops
Multiple Airlines Logo
06:59 - 11:50
DCA
-
BFS
23h 51m
3 stops
£1,075Multiple Airlines
Fri, 17 Jul - Thu, 23 Jul
Multiple Airlines Logo
16:25 - 15:10
BFS
-
IAD
27h 45m
2 stops
Multiple Airlines Logo
18:15 - 11:55
IAD
-
BFS
12h 40m
1 stop
£1,110Multiple Airlines
Fri, 17 Jul - Fri, 24 Jul
Multiple Airlines Logo
07:30 - 19:35
BFS
-
IAD
17h 05m
1 stop
Multiple Airlines Logo
21:45 - 22:50
IAD
-
BFS
20h 05m
1 stop
£1,172Multiple Airlines
Thu, 9 Jul - Thu, 16 Jul

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.

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 20 June 2026.
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

Cheapest return flight

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 17/7

16:25-15:10

2 stops27h 45m

Washington, D.C. Dulles Intl

Thu 23/7

20:30-21:40

2 stops20h 10m

£893

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 27/7

20:35-21:26

3 stops29h 51m

Washington, D.C. Dulles Intl

Fri 31/7

17:15-16:30

2 stops18h 15m

£907
Fastest return journey

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 27/7

10:00-20:00

1 stop15h 00m

Washington, D.C. Dulles Intl

Fri 31/7

18:30-15:05

1 stop15h 35m

£953

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 17/7

06:30-19:00

2 stops17h 30m

Washington, D.C. Dulles Intl

Fri 24/7

18:15-21:15

2 stops22h 00m

£1,000

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 17/7

06:30-19:00

2 stops17h 30m

Washington, D.C. Dulles Intl

Fri 24/7

09:45-21:15

3 stops30h 30m

£1,008

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 17/7

17:20-21:26

3 stops33h 06m

Washington, D.C. Dulles Intl

Fri 24/7

09:45-21:15

3 stops30h 30m

£1,024

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Mon 27/7

08:40-19:20

2 stops15h 40m

Washington, D.C. Dulles Intl

Fri 31/7

22:55-23:20

1 stop19h 25m

£1,026

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Fri 17/7

19:20-22:31

3 stops32h 11m

Washington, D.C. Reagan-National

Thu 23/7

06:59-11:50

3 stops23h 51m

£1,075

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 17/7

16:25-15:10

2 stops27h 45m

Washington, D.C. Dulles Intl

Fri 24/7

18:15-11:55

1 stop12h 40m

£1,110

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 9/7

07:30-19:35

1 stop17h 05m

Washington, D.C. Dulles Intl

Thu 16/7

21:45-22:50

1 stop20h 05m

£1,172

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

Fastest flight time

10h 45m

Direct flights

None
The fastest flight from Belfast Intl Airport to District of Columbia takes 10h 45m
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.

Frequently asked questions about flying from Belfast Intl Airport to District of Columbia

  • 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.

Frequently asked questions about flying from Belfast Intl Airport to District of Columbia

  • How do I get Price Alerts for flights from Belfast Intl Airport to District of Columbia?

    Search flight deals from Belfast Intl Airport to District of Columbia. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from Belfast Intl Airport to District of Columbia with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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.

An easier way to manage your District of Columbia trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 20/7
Mon 27/7

Find better results for your trip to District of Columbia

Popular Cities in District of Columbia

Popular flights according to clicks in the last 7 days on momondo