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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to Washington, D.C..

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

The necessary travel and health documents for your Washington, D.C. 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.

£609 Cheap Flights from Belfast Intl Airport to Washington, D.C. in 2025/26

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

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08:50 - 20:55

BFS

IAD

16h 05m1 stop

19:20 - 21:30

IAD

BFS

22h 10m1 stop

£609Multiple Airlines

Thu, 12 Mar - Tue, 17 Mar

momondo Fare Finder

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

Fly from

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Route

Depart

Return

Price

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 12/3

08:50-20:55

1 stop16h 05m

Washington, D.C. Dulles Intl

Tue 17/3

19:20-21:30

1 stop22h 10m

£609

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

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 day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from Belfast Intl Airport is on a Friday. momondo users have found tickets for Friday departures for as low as £739. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Belfast Intl Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,043.

When to book flights from Belfast Intl Airport to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from Belfast Intl Airport to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Belfast Intl Airport to Washington, D.C. (BFS to WAS) flight deals and tips

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

Fastest flight time	11h 30m
Direct flights	None

The fastest flight from Belfast Intl Airport to Washington, D.C. takes 11h 30m

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

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How far is Belfast Intl to Washington, D.C. by plane?
The straight-line distance from Belfast Intl to Washington, D.C. is 3361.5 mi. 11h 30m is a normal flight duration for this route.
When did momondo last update prices for flights from Belfast Intl Airport to Washington, D.C.?
Prices for flights from Belfast Intl Airport to Washington, D.C. refresh daily.
How old do you have to be to fly from Belfast Intl Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Belfast Intl Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The necessary travel and health documents for your Washington, D.C. 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.

Laurel

College Park

Alexandria

Fairfax

Arlington

Linthicum Heights

Bethesda

Glen Burnie

Lutherville Timonium

Ellicott City

Cambridge

Westminster

Woodbridge

Silver Spring

Owings Mills

National Harbor

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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?

Yes. momondo allows you to filter the results for Belfast to Washington, D.C. flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Belfast and Washington, D.C. 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 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.