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 12h 25m on average. On the other hand, flying from Baltimore to Belfast Intl Airport takes 16h 20m 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 July 2025.

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.

$292 Cheap Flights from Washington, D.C. to Belfast in 2025

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

Round-trip

One-way

Cheap round-trip flights

6:50 pm - 11:10 pmBWI-BFS

23h 20m2 stops

6:45 am - 5:40 pmBFS-BWI

15h 55m2 stops

$540

Find Deal

Tue, Sep 16 - Mon, Sep 22

6:50 pm - 11:05 pmBWI-BFS

23h 15m2 stops

6:55 am - 5:40 pmBFS-BWI

15h 45m2 stops

$609

Find Deal

Sat, Sep 13 - Sat, Sep 20

7:25 pm - 10:35 amIAD-BHD

10h 10m1 stop

8:05 pm - 3:00 pmBHD-IAD

23h 55m2 stops

$619British Airways

Find Deal

Tue, Sep 2 - Fri, Sep 12

7:25 pm - 1:00 pmIAD-BHD

12h 35m1 stop

6:50 am - 8:20 pmBHD-IAD

18h 30m1 stop

$625British Airways

Find Deal

Tue, Oct 7 - Sun, Oct 12

5:25 pm - 9:15 pmIAD-BHD

22h 50m1 stop

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$707KLM

Find Deal

Mon, Sep 1 - Fri, Sep 12

8:23 pm - 9:15 pmIAD-BHD

19h 52m2 stops

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$710Delta

Find Deal

Sun, Aug 17 - Sun, Aug 24

8:23 pm - 9:15 pmIAD-BHD

19h 52m2 stops

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$711Delta

Find Deal

Mon, Sep 1 - Mon, Sep 15

10:45 pm - 5:15 pmIAD-BHD

13h 30m1 stop

9:15 am - 3:35 pmBHD-IAD

11h 20m1 stop

$748American Airlines

Find Deal

Sat, Sep 6 - Sat, Dec 20

5:25 pm - 4:55 pmIAD-BHD

18h 30m1 stop

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$763KLM

Find Deal

Sun, Aug 31 - Sun, Sep 14

9:35 pm - 5:15 pmBWI-BHD

14h 40m1 stop

11:35 am - 6:45 pmBHD-BWI

12h 10m1 stop

$868American Airlines

Find Deal

Sat, Sep 6 - Sat, Dec 20

British Airways flights from Washington, D.C. to Belfast

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

British Airways

Sep 2

IAD7:25 pmWashington, D.C. Dulles Intl

10h 10m

1 stop

BHD10:35 amBelfast City

Sep 12

BHD8:05 pmBelfast City

23h 55m

2 stops

IAD3:00 pmWashington, D.C. Dulles Intl

$619

Find similar

British Airways

Oct 7

IAD7:25 pmWashington, D.C. Dulles Intl

12h 35m

1 stop

BHD1:00 pmBelfast City

Oct 12

BHD6:50 amBelfast City

18h 30m

1 stop

IAD8:20 pmWashington, D.C. Dulles Intl

$625

Find similar

British Airways

Sep 6

IAD2:21 pmWashington, D.C. Dulles Intl

16h 54m

2 stops

BHD12:15 pmBelfast City

Dec 20

BHD6:00 pmBelfast City

26h 35m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$629

Find similar

KLM flights from Washington, D.C. to Belfast

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

KLM

Sep 1

IAD5:25 pmWashington, D.C. Dulles Intl

22h 50m

1 stop

BHD9:15 pmBelfast City

Sep 12

BHD6:30 amBelfast City

14h 05m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$707

Find similar

KLM

Aug 31

IAD5:25 pmWashington, D.C. Dulles Intl

18h 30m

1 stop

BHD4:55 pmBelfast City

Sep 14

BHD6:30 amBelfast City

14h 05m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$763

Find similar

KLM

Nov 12

IAD11:00 amWashington, D.C. Dulles Intl

29h 00m

2 stops

BHD9:00 pmBelfast City

Nov 16

BHD6:30 amBelfast City

14h 35m

1 stop

IAD4:05 pmWashington, D.C. Dulles Intl

$765

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Tue 9/16

6:50 pm-11:10 pm

2 stops23h 20m

Belfast Intl

Mon 9/22

6:45 am-5:40 pm

2 stops15h 55m

$540

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

Sat 9/13

6:50 pm-11:05 pm

2 stops23h 15m

Belfast Intl

Sat 9/20

6:55 am-5:40 pm

2 stops15h 45m

$609

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 9/2

7:25 pm-10:35 am

1 stop10h 10m

Belfast City

Fri 9/12

8:05 pm-3:00 pm

2 stops23h 55m

$619

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 10/7

7:25 pm-1:00 pm

1 stop12h 35m

Belfast City

Sun 10/12

6:50 am-8:20 pm

1 stop18h 30m

$625

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 9/1

5:25 pm-9:15 pm

1 stop22h 50m

Belfast City

Fri 9/12

6:30 am-3:35 pm

1 stop14h 05m

$707

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 8/17

8:23 pm-9:15 pm

2 stops19h 52m

Belfast City

Sun 8/24

6:30 am-3:35 pm

1 stop14h 05m

$710

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Mon 9/1

8:23 pm-9:15 pm

2 stops19h 52m

Belfast City

Mon 9/15

6:30 am-3:35 pm

1 stop14h 05m

$711

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sat 9/6

10:45 pm-5:15 pm

1 stop13h 30m

Belfast City

Sat 12/20

9:15 am-3:35 pm

1 stop11h 20m

$748

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 8/31

5:25 pm-4:55 pm

1 stop18h 30m

Belfast City

Sun 9/14

6:30 am-3:35 pm

1 stop14h 05m

$763

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Sat 9/6

9:35 pm-5:15 pm

1 stop14h 40m

Belfast City

Sat 12/20

11:35 am-6:45 pm

1 stop12h 10m

$868

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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

Prices

Other information

What is the cheapest month to fly to Belfast?

In general, February is the cheapest month to fly from Washington, D.C. to Belfast. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $618. If you don’t want to visit Belfast in February, then you should wait until August to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $618.

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Washington, D.C. to Belfast is on a Tuesday when prices can be found for as low as $680. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Belfast for around $884.

What is the cheapest time of day to depart on your flight to Belfast?

Our data shows that the cheapest Washington, D.C. to Belfast flights are usually those with departure times in the evening. Our users have found flights to Belfast in the evening for as low as $683. Try not to purchase tickets in the afternoon because they tend to be around $762. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Best Price Found	$292
Fastest flight time	9h 50m
Direct flights	None
Airports in Belfast	2 airports

The best one-way flight to Belfast from Washington, D.C. in the past 72 hours is $292. The best round-trip flight deal from Washington, D.C. to Belfast found on momondo in the last 72 hours is $540.

The fastest flight from Washington, D.C. to Belfast takes 9h 50m

There are no direct flights from Washington, D.C. to Belfast. Popular non-direct routes for this connection are Washington, D.C. Dulles Intl Airport - Belfast City Airport, Baltimore/Washington Airport - Belfast Intl Airport and Washington, D.C. Reagan-National Airport - Belfast Intl Airport.

There are 2 airports near Belfast: Belfast Intl (BFS), Belfast City (BHD)

Search flight deals

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 9h 50m.
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 July 2025.
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 $578	Free Cancellation	Rating 6.6 7,222 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.

An easier way to manage your Belfast trip

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Cheap flights from Washington, D.C. to Belfast from $292

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 9/19. 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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Big names and deals

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Filter for what you want

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Trusted and free

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

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British Airways flights from Washington, D.C. to Belfast

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

KLM flights from Washington, D.C. to Belfast

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

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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

What is the cheapest month to fly to Belfast?

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Washington, D.C. to Belfast is on a Tuesday when prices can be found for as low as $680. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Belfast for around $884.

What is the cheapest time of day to depart on your flight to Belfast?

How long does it take to fly 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

Best Price Found

Fastest flight time

Direct flights

Airports in Belfast

How far is Washington, D.C. to Belfast by plane?

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

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

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

What documentation or ID do you need to fly 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?

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

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

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

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

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