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 Baltimore to Belfast Intl Airport takes 12h 25m on average. On the other hand, flying from Washington, D.C. to Belfast Intl Airport takes 14h 28m 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 September 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.

$573 Cheap Flights from Washington, D.C. to Belfast in 2025/26

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

Round-trip

One-way

Last minute

Cheap round-trip flights

10:45 pm - 6:15 pmIAD-BHD

14h 30m1 stop

11:55 am - 8:15 pmBHD-IAD

13h 20m1 stop

$630American Airlines

Find Deal

vie., oct. 3 - vie., oct. 10

6:20 pm - 10:30 amIAD-BHD

11h 10m1 stop

12:25 pm - 7:55 pmBHD-IAD

12h 30m1 stop

$634British Airways

Find Deal

mar., ene. 6 - mié., ene. 14

10:45 pm - 6:15 pmIAD-BHD

14h 30m1 stop

6:35 am - 7:45 pmBHD-IAD

18h 10m2 stops

$640American Airlines

Find Deal

vie., oct. 3 - vie., oct. 10

5:25 pm - 4:55 pmIAD-BHD

18h 30m1 stop

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$708Delta

Find Deal

lun., oct. 6 - lun., oct. 20

7:35 pm - 4:55 pmIAD-BHD

16h 20m2 stops

6:30 am - 3:35 pmBHD-IAD

14h 05m1 stop

$709KLM

Find Deal

lun., oct. 6 - lun., oct. 20

5:03 pm - 9:00 pmIAD-BHD

22h 57m2 stops

6:30 am - 4:05 pmBHD-IAD

14h 35m1 stop

$712Virgin Atlantic

Find Deal

mié., nov. 12 - dom., nov. 16

9:00 am - 9:15 pmBWI-BHD

31h 15m2 stops

5:25 pm - 5:34 pmBHD-BWI

29h 09m2 stops

$715Delta

Find Deal

lun., oct. 6 - lun., oct. 20

12:19 pm - 12:55 pmDCA-BHD

19h 36m2 stops

6:40 am - 8:16 pmBHD-DCA

18h 36m2 stops

$721British Airways

Find Deal

lun., oct. 13 - lun., oct. 20

5:03 pm - 4:50 pmDCA-BHD

18h 47m2 stops

6:30 am - 7:53 pmBHD-DCA

18h 23m2 stops

$722Virgin Atlantic

Find Deal

mié., nov. 12 - dom., nov. 16

7:35 pm - 4:50 pmDCA-BHD

16h 15m2 stops

6:30 am - 4:38 pmBHD-DCA

15h 08m2 stops

$932KLM

Find Deal

mar., nov. 25 - vie., nov. 28

Aer Lingus flights from Washington, D.C. to Belfast

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

Aer Lingus

Oct 13

IAD8:25 pmWashington, D.C. Dulles Intl

12h 20m

2 stops

BHD1:45 pmBelfast City

Oct 20

BHD9:50 amBelfast City

14h 05m

2 stops

IAD6:55 pmWashington, D.C. Dulles Intl

$925

Find similar

Aer Lingus

Oct 6

IAD8:25 pmWashington, D.C. Dulles Intl

12h 20m

2 stops

BHD1:45 pmBelfast City

Oct 20

BHD9:50 amBelfast City

14h 05m

2 stops

IAD6:55 pmWashington, D.C. Dulles Intl

$941

Find similar

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

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

British Airways

Jan 6

IAD6:20 pmWashington, D.C. Dulles Intl

11h 10m

1 stop

BHD10:30 amBelfast City

Jan 14

BHD12:25 pmBelfast City

12h 30m

1 stop

IAD7:55 pmWashington, D.C. Dulles Intl

$634

Find similar

British Airways

Oct 13

DCA12:19 pmWashington, D.C. Reagan-National

19h 36m

2 stops

BHD12:55 pmBelfast City

Oct 20

BHD6:40 amBelfast City

18h 36m

2 stops

DCA8:16 pmWashington, D.C. Reagan-National

$721

Find similar

British Airways

Nov 12

IAD6:20 pmWashington, D.C. Dulles Intl

9h 50m

1 stop

BHD9:10 amBelfast City

Nov 16

BHD9:10 amBelfast City

11h 25m

1 stop

IAD3:35 pmWashington, D.C. Dulles Intl

$747

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momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 10/3

10:45 pm-6:15 pm

1 stop14h 30m

Belfast City

vie. 10/10

11:55 am-8:15 pm

1 stop13h 20m

$630

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 1/6

6:20 pm-10:30 am

1 stop11h 10m

Belfast City

mié. 1/14

12:25 pm-7:55 pm

1 stop12h 30m

$634

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 10/3

10:45 pm-6:15 pm

1 stop14h 30m

Belfast City

vie. 10/10

6:35 am-7:45 pm

2 stops18h 10m

$640

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 10/6

5:25 pm-4:55 pm

1 stop18h 30m

Belfast City

lun. 10/20

6:30 am-3:35 pm

1 stop14h 05m

$708

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

lun. 10/6

7:35 pm-4:55 pm

2 stops16h 20m

Belfast City

lun. 10/20

6:30 am-3:35 pm

1 stop14h 05m

$709

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 11/12

5:03 pm-9:00 pm

2 stops22h 57m

Belfast City

dom. 11/16

6:30 am-4:05 pm

1 stop14h 35m

$712

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

lun. 10/6

9:00 am-9:15 pm

2 stops31h 15m

Belfast City

lun. 10/20

5:25 pm-5:34 pm

2 stops29h 09m

$715

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

lun. 10/13

12:19 pm-12:55 pm

2 stops19h 36m

Belfast City

lun. 10/20

6:40 am-8:16 pm

2 stops18h 36m

$721

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mié. 11/12

5:03 pm-4:50 pm

2 stops18h 47m

Belfast City

dom. 11/16

6:30 am-7:53 pm

2 stops18h 23m

$722

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mar. 11/25

7:35 pm-4:50 pm

2 stops16h 15m

Belfast City

vie. 11/28

6:30 am-4:38 pm

2 stops15h 08m

$932

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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 January to fly from Washington, D.C., when ticket prices are also cheap, with an average price of $620.

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

Direct flights	None

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

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 September 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 $620	Free Cancellation	Rating 6.7 7,363 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 $630

This is the cheapest round-trip 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 10/3. 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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Aer Lingus flights from Washington, D.C. to Belfast

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

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

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

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Use the filters below to find and compare flights from Washington, D.C. to Belfast that are best for you.

See travel insights to Belfast from

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

Direct flights

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