How do I get Price Alerts for flights from Belfast to Washington, D.C. Dulles Intl Airport?

Price Alerts will notify you by email when the price for flights to Washington, D.C. Dulles Intl Airport from Belfast decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.

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.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Washington, D.C. Dulles Intl Airport.

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

£297 Cheap Flights from Belfast to Washington, D.C. Dulles Intl Airport in 2026

Voted winner of Europe's Best Travel App 2023

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

Return

One-way

Cheap return flights

Enter your travel dates to find the best prices.

21:10 - 15:45

BFS

IAD

23h 35m

2 stops

17:15 - 23:15

IAD

BFS

25h 00m

2 stops

£674Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

22:45 - 15:24

BFS

IAD

21h 39m

2 stops

20:30 - 22:20

IAD

BFS

20h 50m

3 stops

£701Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

21:10 - 15:45

BFS

IAD

23h 35m

2 stops

17:15 - 19:15

IAD

BFS

21h 00m

2 stops

£717Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

05:55 - 21:14

BFS

IAD

20h 19m

3 stops

20:30 - 22:20

IAD

BFS

20h 50m

3 stops

£720Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

07:20 - 20:24

BFS

IAD

18h 04m

2 stops

20:30 - 21:50

IAD

BFS

20h 20m

2 stops

£835Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

07:20 - 20:24

BFS

IAD

18h 04m

2 stops

17:05 - 23:20

IAD

BFS

25h 15m

3 stops

£836Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

07:35 - 21:14

BFS

IAD

18h 39m

3 stops

21:45 - 16:10

IAD

BFS

13h 25m

2 stops

£842Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

07:20 - 11:13

BFS

IAD

32h 53m

3 stops

17:05 - 23:20

IAD

BFS

25h 15m

3 stops

£948Multiple Airlines

Fri, 14 Aug - Fri, 21 Aug

06:10 - 12:47

BFS

IAD

35h 37m

2 stops

18:15 - 11:45

IAD

BFS

12h 30m

1 stop

£994Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

06:15 - 16:05

BFS

IAD

14h 50m

1 stop

18:15 - 11:45

IAD

BFS

12h 30m

1 stop

£1,232Multiple Airlines

Wed, 12 Aug - Wed, 19 Aug

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

21:10-15:45

2 stops23h 35m

Washington, D.C. Dulles Intl

Wed 19/8

17:15-23:15

2 stops25h 00m

£674

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

22:45-15:24

2 stops21h 39m

Washington, D.C. Dulles Intl

Wed 19/8

20:30-22:20

3 stops20h 50m

£701

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

21:10-15:45

2 stops23h 35m

Washington, D.C. Dulles Intl

Wed 19/8

17:15-19:15

2 stops21h 00m

£717

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

05:55-21:14

3 stops20h 19m

Washington, D.C. Dulles Intl

Wed 19/8

20:30-22:20

3 stops20h 50m

£720

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 14/8

07:20-20:24

2 stops18h 04m

Washington, D.C. Dulles Intl

Fri 21/8

20:30-21:50

2 stops20h 20m

£835

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 14/8

07:20-20:24

2 stops18h 04m

Washington, D.C. Dulles Intl

Fri 21/8

17:05-23:20

3 stops25h 15m

£836

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

07:35-21:14

3 stops18h 39m

Washington, D.C. Dulles Intl

Wed 19/8

21:45-16:10

2 stops13h 25m

£842

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 14/8

07:20-11:13

3 stops32h 53m

Washington, D.C. Dulles Intl

Fri 21/8

17:05-23:20

3 stops25h 15m

£948

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

06:10-12:47

2 stops35h 37m

Washington, D.C. Dulles Intl

Wed 19/8

18:15-11:45

1 stop12h 30m

£994

Fastest return journey

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 12/8

06:15-16:05

1 stop14h 50m

Washington, D.C. Dulles Intl

Wed 19/8

18:15-11:45

1 stop12h 30m

£1,232

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Fastest flight time	17h 35m
Direct flights	None

The fastest flight from Belfast to Washington, D.C. Dulles Intl Airport takes 17h 35m

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

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

How far is Belfast to Washington, D.C. Dulles Intl by plane?
A flight from Belfast to Washington, D.C. Dulles Intl will travel around 3387.7 mi. By plane, this route typically takes 17h 35m.
When did momondo last update prices for flights from Belfast to Washington, D.C. Dulles Intl Airport?
Prices for flights from Belfast to Washington, D.C. Dulles Intl Airport are updated daily.
How old do you have to be to fly from Belfast to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Belfast to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

How do I get Price Alerts for flights from Belfast to Washington, D.C. Dulles Intl Airport?
Price Alerts will notify you by email when the price for flights to Washington, D.C. Dulles Intl Airport from Belfast decreases. To activate this, select your desired travel dates and search for offers. While browsing through offers you’ll see the Price Alert widget toggle. Click it to turn on notifications.
How can I save money on flights from Belfast to Washington, D.C. Dulles Intl Airport 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.

Alexandria

College Park

Springfield

Fairfax

Arlington

Gettysburg

Linthicum Heights

National Harbor

Front Royal

Winchester

Ellicott City

Cambridge

Glen Burnie

Westminster

Laurel

Lutherville Timonium

Ashburn

Lexington Park

Leesburg

Owings Mills

Why use momondo?

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

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 Belfast to Washington, D.C. for you.

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

All flight searches from Belfast to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Belfast to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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