What is the cheapest airline that flies from Northern Ireland to Washington, D.C. Dulles Intl?

KLM is the most popular carrier operating from Northern Ireland to Washington, D.C. Dulles Intl

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

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 Northern Ireland 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 required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$447 Cheap Flights from Northern Ireland to Washington, D.C. Dulles Intl Airport in 2026

Find the cheapest flights from Northern Ireland to Washington, D.C.

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:05 am - 10:45 amBFS Belfast Intl-IAD Washington, D.C. Dulles Intl

33h 40m3 stops London Gatwick Ottawa Toronto Island

8:30 pm - 11:25 pmIAD Washington, D.C. Dulles Intl-BFS Belfast Intl

21h 55m2 stops Reykjavik Keflavik Intl Manchester

$799Multiple Airlines

Fri, Sep 25 - Sat, Sep 26

6:05 am - 8:25 pmBFS Belfast Intl-IAD Washington, D.C. Dulles Intl

19h 20m2 stops London Gatwick Toronto Pearson Intl

8:30 pm - 11:25 pmIAD Washington, D.C. Dulles Intl-BFS Belfast Intl

21h 55m2 stops Reykjavik Keflavik Intl Manchester

$868Multiple Airlines

Fri, Sep 25 - Sat, Sep 26

3:35 pm - 5:00 pmBFS Belfast Intl-IAD Washington, D.C. Dulles Intl

30h 25m2 stops Edinburgh Turnhouse Kastrup Copenhagen

8:20 pm - 9:45 pmIAD Washington, D.C. Dulles Intl-BFS Belfast Intl

20h 25m2 stops Kastrup Copenhagen Edinburgh Turnhouse

$925Multiple Airlines

Thu, Oct 1 - Thu, Oct 8

8:35 pm - 6:50 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

27h 15m2 stops London Heathrow Madrid Barajas

5:45 pm - 10:30 amIAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 45m1 stop London Heathrow

$928British Airways

Wed, Sep 30 - Sun, Oct 4

8:35 pm - 6:50 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

27h 15m2 stops London Heathrow Madrid Barajas

5:45 pm - 10:30 amIAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 45m1 stop London Heathrow

$931British Airways

Wed, Sep 30 - Sun, Oct 4

3:25 pm - 4:20 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

29h 55m2 stops London Heathrow Madrid Barajas

9:45 pm - 2:15 pmIAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 30m1 stop London Heathrow

$932British Airways

Thu, Nov 12 - Mon, Nov 16

5:50 pm - 4:20 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

27h 30m2 stops London Heathrow Madrid Barajas

6:05 pm - 9:05 amIAD Washington, D.C. Dulles Intl-BHD Belfast City

10h 00m1 stop London Heathrow

$933British Airways

Thu, Nov 12 - Mon, Nov 16

11:35 am - 8:20 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

13h 45m1 stop London Heathrow

10:25 pm - 2:35 pmIAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 10m1 stop London Heathrow

$934British Airways

Wed, Sep 30 - Sun, Oct 4

11:35 am - 8:20 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

13h 45m1 stop London Heathrow

10:25 pm - 2:35 pmIAD Washington, D.C. Dulles Intl-BHD Belfast City

11h 10m1 stop London Heathrow

$937British Airways

Wed, Sep 30 - Sun, Oct 4

8:50 am - 7:55 pmBHD Belfast City-IAD Washington, D.C. Dulles Intl

16h 05m1 stop London Heathrow

6:05 pm - 9:05 amIAD Washington, D.C. Dulles Intl-BHD Belfast City

10h 00m1 stop London Heathrow

$938British Airways

Thu, Nov 12 - Mon, Nov 16

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British Airways flights from Northern Ireland to Washington, D.C. Dulles Intl Airport

Our best British Airways deals on Northern Ireland to Washington, D.C. Dulles Intl Airport flight tickets

British Airways

Sep 30

BHD8:35 pmBelfast City

27h 15m

2 stops

IAD6:50 pmWashington, D.C. Dulles Intl

Oct 4

IAD5:45 pmWashington, D.C. Dulles Intl

11h 45m

1 stop

BHD10:30 amBelfast City

$928

British Airways

Sep 30

BHD8:35 pmBelfast City

27h 15m

2 stops

IAD6:50 pmWashington, D.C. Dulles Intl

Oct 4

IAD5:45 pmWashington, D.C. Dulles Intl

11h 45m

1 stop

BHD10:30 amBelfast City

$931

British Airways

Nov 12

BHD3:25 pmBelfast City

29h 55m

2 stops

IAD4:20 pmWashington, D.C. Dulles Intl

Nov 16

IAD9:45 pmWashington, D.C. Dulles Intl

11h 30m

1 stop

BHD2:15 pmBelfast City

$932

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Fri 9/25

6:05 am-10:45 am

3 stops33h 40m

Washington, D.C. Dulles Intl

Sat 9/26

8:30 pm-11:25 pm

2 stops21h 55m

$799

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Fri 9/25

6:05 am-8:25 pm

2 stops19h 20m

Washington, D.C. Dulles Intl

Sat 9/26

8:30 pm-11:25 pm

2 stops21h 55m

$868

BelfastWashington, D.C.

BFS Belfast Intl - IAD Washington, D.C. Dulles Intl

BFSIAD

Belfast Intl

Thu 10/1

3:35 pm-5:00 pm

2 stops30h 25m

Washington, D.C. Dulles Intl

Thu 10/8

8:20 pm-9:45 pm

2 stops20h 25m

$925

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Wed 9/30

8:35 pm-6:50 pm

2 stops27h 15m

Washington, D.C. Dulles Intl

Sun 10/4

5:45 pm-10:30 am

1 stop11h 45m

$928

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Wed 9/30

8:35 pm-6:50 pm

2 stops27h 15m

Washington, D.C. Dulles Intl

Sun 10/4

5:45 pm-10:30 am

1 stop11h 45m

$931

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 11/12

3:25 pm-4:20 pm

2 stops29h 55m

Washington, D.C. Dulles Intl

Mon 11/16

9:45 pm-2:15 pm

1 stop11h 30m

$932

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 11/12

5:50 pm-4:20 pm

2 stops27h 30m

Washington, D.C. Dulles Intl

Mon 11/16

6:05 pm-9:05 am

1 stop10h 00m

$933

Quickest round-trip

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Wed 9/30

11:35 am-8:20 pm

1 stop13h 45m

Washington, D.C. Dulles Intl

Sun 10/4

10:25 pm-2:35 pm

1 stop11h 10m

$934

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Wed 9/30

11:35 am-8:20 pm

1 stop13h 45m

Washington, D.C. Dulles Intl

Sun 10/4

10:25 pm-2:35 pm

1 stop11h 10m

$937

BelfastWashington, D.C.

BHD Belfast City - IAD Washington, D.C. Dulles Intl

BHDIAD

Belfast City

Thu 11/12

8:50 am-7:55 pm

1 stop16h 05m

Washington, D.C. Dulles Intl

Mon 11/16

6:05 pm-9:05 am

1 stop10h 00m

$938

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first

How to get the cheapest flight ticket from Northern Ireland to Washington, D.C. Dulles Intl Airport

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

Airlines

Can stopping save me money on Northern Ireland to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 39% on your flight if you consider stops on a Northern Ireland to Washington, D.C. Dulles Intl Airport flight.

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

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

Best Price Found	$447
Fastest flight time	27h 30m
Direct flights	None

The best one-way flight to Washington, D.C. Dulles Intl Airport from Northern Ireland in the past 72 hours is $447. The best round-trip flight deal from Northern Ireland to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $799.

The fastest flight from Northern Ireland to Washington, D.C. Dulles Intl Airport takes 27h 30m

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

Search flight deals

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

When did momondo last update prices for flights from Northern Ireland to Washington, D.C. Dulles Intl Airport?
Prices for flights from Northern Ireland to Washington, D.C. Dulles Intl Airport are updated daily.
How old do you have to be to fly from Northern Ireland to Washington, D.C. Dulles Intl Airport?
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 Northern Ireland 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 required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Alexandria

National Harbor

Arlington

Gettysburg

Winchester

Waldorf

Laurel

Woodbridge

Fredericksburg

Gaithersburg

Linthicum Heights

Rockville

Silver Spring

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Sterling

Springfield

Colonial Beach

Fairfax

Edgewood

Tysons

Why use momondo?

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

It is quick and easy to find Northern Ireland to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

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

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

Once you have performed a search for Northern Ireland to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Washington, D.C. from Northern Ireland. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.