How long does it take to fly to Belfast?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Belfast you fly into. For example, flying from Washington, D.C. to Belfast Intl Airport takes 11h 46m on average. On the other hand, flying from Baltimore to Belfast Intl Airport takes 13h on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Washington, D.C. to Belfast?

Prices for flights from Washington, D.C. to Belfast refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Belfast?

There is 1 operator available for flights from Washington, D.C. to Belfast as of April 2026.

How old do you have to be to fly from Washington, D.C. to Belfast?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Belfast.

What documentation or ID do you need to fly to Belfast?

The necessary travel and health documents for your Belfast 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.

$366 Cheap Flights from Washington, D.C. to Belfast in 2026

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Find the cheapest flights from Washington, D.C. to Belfast

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 pm - 7:50 pm

IAD

BFS

18h 20m

3 stops

8:15 pm - 3:10 pm

BFS

IAD

47h 55m

3 stops

$757Multiple Airlines

Tue, May 5 - Tue, May 12

8:30 pm - 7:40 pm

IAD

BFS

18h 10m

2 stops

8:15 pm - 3:10 pm

BFS

IAD

47h 55m

3 stops

$763Multiple Airlines

Tue, May 5 - Tue, May 12

8:30 pm - 11:25 pm

IAD

BFS

21h 55m

2 stops

10:10 pm - 3:10 pm

BFS

IAD

46h 00m

3 stops

$790Multiple Airlines

Sat, Apr 25 - Sun, May 3

5:35 pm - 9:00 am

IAD

BHD

10h 25m

1 stop

1:45 pm - 8:20 pm

BHD

IAD

11h 35m

1 stop

$965British Airways

Tue, May 5 - Tue, May 12

9:30 pm - 3:40 pm

IAD

BHD

13h 10m

1 stop

10:05 am - 8:20 pm

BHD

IAD

15h 15m

1 stop

$970British Airways

Wed, Aug 19 - Wed, Aug 26

5:35 pm - 7:50 pm

IAD

BHD

21h 15m

1 stop

11:35 am - 11:59 pm

BHD

IAD

17h 24m

2 stops

$1,007American Airlines

Wed, May 6 - Wed, May 13

6:50 pm - 4:55 pm

IAD

BHD

17h 05m

2 stops

5:30 pm - 3:35 pm

BHD

IAD

27h 05m

1 stop

$1,012KLM

Tue, May 5 - Tue, May 12

12:37 pm - 9:20 am

IAD

BHD

15h 43m

2 stops

9:50 am - 9:24 pm

BHD

IAD

16h 34m

2 stops

$1,022KLM

Tue, May 5 - Tue, May 12

10:40 am - 9:20 am

BWI

BHD

17h 40m

2 stops

9:50 am - 10:49 pm

BHD

BWI

17h 59m

2 stops

$1,072Delta

Mon, May 4 - Mon, May 11

8:17 pm - 6:45 pm

BWI

BHD

17h 28m

2 stops

7:05 am - 12:26 am

BHD

BWI

22h 21m

2 stops

$1,086American Airlines

Thu, Jul 30 - Sat, Aug 22

American Airlines flights from Washington, D.C. to Belfast

Our best American Airlines deals on Washington, D.C. to Belfast flight tickets

American Airlines

May 6

IAD5:35 pmWashington, D.C. Dulles Intl

21h 15m

1 stop

BHD7:50 pmBelfast City

May 13

BHD11:35 amBelfast City

17h 24m

2 stops

IAD11:59 pmWashington, D.C. Dulles Intl

$1,007

American Airlines

May 3

IAD3:26 pmWashington, D.C. Dulles Intl

14h 04m

2 stops

BHD10:30 amBelfast City

May 10

BHD11:00 amBelfast City

14h 20m

1 stop

IAD8:20 pmWashington, D.C. Dulles Intl

$1,041

American Airlines

Jul 30

BWI8:17 pmBaltimore/Washington

17h 28m

2 stops

BHD6:45 pmBelfast City

Aug 22

BHD7:05 amBelfast City

22h 21m

2 stops

BWI12:26 amBaltimore/Washington

$1,086

Delta flights from Washington, D.C. to Belfast

Our best Delta deals on Washington, D.C. to Belfast flight tickets

Delta

Sep 4

IAD5:40 pmWashington, D.C. Dulles Intl

18h 15m

1 stop

BHD4:55 pmBelfast City

Sep 15

BHD9:50 amBelfast City

16h 28m

2 stops

IAD9:18 pmWashington, D.C. Dulles Intl

$1,054

Delta

May 4

IAD7:19 pmWashington, D.C. Dulles Intl

16h 36m

2 stops

BHD4:55 pmBelfast City

May 11

BHD9:50 amBelfast City

16h 34m

2 stops

IAD9:24 pmWashington, D.C. Dulles Intl

$1,072

Delta

Sep 4

IAD12:30 pmWashington, D.C. Dulles Intl

23h 25m

2 stops

BHD4:55 pmBelfast City

Sep 15

BHD9:50 amBelfast City

16h 28m

2 stops

IAD9:18 pmWashington, D.C. Dulles Intl

$1,120

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 5/5

8:30 pm-7:50 pm

3 stops18h 20m

Belfast Intl

Tue 5/12

8:15 pm-3:10 pm

3 stops47h 55m

$757

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 5/5

8:30 pm-7:40 pm

2 stops18h 10m

Belfast Intl

Tue 5/12

8:15 pm-3:10 pm

3 stops47h 55m

$763

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Sat 4/25

8:30 pm-11:25 pm

2 stops21h 55m

Belfast Intl

Sun 5/3

10:10 pm-3:10 pm

3 stops46h 00m

$790

Quickest round-trip

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

5:35 pm-9:00 am

1 stop10h 25m

Belfast City

Tue 5/12

1:45 pm-8:20 pm

1 stop11h 35m

$965

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 8/19

9:30 pm-3:40 pm

1 stop13h 10m

Belfast City

Wed 8/26

10:05 am-8:20 pm

1 stop15h 15m

$970

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Wed 5/6

5:35 pm-7:50 pm

1 stop21h 15m

Belfast City

Wed 5/13

11:35 am-11:59 pm

2 stops17h 24m

$1,007

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

6:50 pm-4:55 pm

2 stops17h 05m

Belfast City

Tue 5/12

5:30 pm-3:35 pm

1 stop27h 05m

$1,012

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 5/5

12:37 pm-9:20 am

2 stops15h 43m

Belfast City

Tue 5/12

9:50 am-9:24 pm

2 stops16h 34m

$1,022

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Mon 5/4

10:40 am-9:20 am

2 stops17h 40m

Belfast City

Mon 5/11

9:50 am-10:49 pm

2 stops17h 59m

$1,072

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 7/30

8:17 pm-6:45 pm

2 stops17h 28m

Belfast City

Sat 8/22

7:05 am-12:26 am

2 stops22h 21m

$1,086

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Belfast

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

Airlines

Other information

What is the cheapest airline that flies from Washington, D.C. to Belfast?

British Airways and American Airlines are the most popular carriers operating from Washington, D.C. to Belfast

Cheap Washington, D.C. to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Belfast

Fastest flight time	10h 15m
Direct flights	None

The fastest flight from Washington, D.C. to Belfast takes 10h 15m

There are no direct flights from Washington, D.C. to Belfast. There are no popular flight routes from Washington, D.C. to Belfast.

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Frequently asked questions about flying from Washington, D.C. to Belfast

How far is Washington, D.C. to Belfast by plane?
Washington, D.C. and Belfast are 3373.5 mi apart from one another. In terms of flight time, this usually takes a little over 10h 15m.
When did momondo last update prices for flights from Washington, D.C. to Belfast?
Prices for flights from Washington, D.C. to Belfast refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Belfast?
There is 1 operator available for flights from Washington, D.C. to Belfast as of April 2026.
How old do you have to be to fly from Washington, D.C. to Belfast?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Belfast.
What documentation or ID do you need to fly to Belfast?
The necessary travel and health documents for your Belfast 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.

Best airlines flying from Washington, D.C. to Belfast

Compare and see reviews for airlines that fly from Washington, D.C. to Belfast with momondo

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom $652	Free Cancellation	Rating 6.7 7,869 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Belfast?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Belfast for you.

Can I find flights from Washington, D.C. to Belfast with flexible booking policies on momondo?

Yes. All flights to Belfast from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to Belfast?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Belfast from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to Belfast right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Washington, D.C. to Belfast from $366

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Belfast departing on 8/25. 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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Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Belfast

Best airlines flying from Washington, D.C. to Belfast

Compare and see reviews for airlines that fly from Washington, D.C. to Belfast with momondo

Why use momondo?

An easier way to manage your Belfast trip

We make it super easy to schedule, organize 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.

Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast

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