Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Northern Ireland to Washington, D.C. from £473

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Washington, D.C. departing on 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
07:00 - 22:15
BHD
-
IAD
20h 15m
2 stops
Multiple Airlines Logo
23:20 - 20:35
IAD
-
BHD
16h 15m
2 stops
£571Multiple Airlines
Wed, 24 Jun - Sun, 28 Jun
Multiple Airlines Logo
06:10 - 22:15
BFS
-
IAD
21h 05m
2 stops
Multiple Airlines Logo
23:20 - 20:15
IAD
-
BFS
15h 55m
2 stops
£584Multiple Airlines
Wed, 24 Jun - Sun, 28 Jun
British Airways Logo
10:05 - 17:25
BHD
-
IAD
12h 20m
1 stop
British Airways Logo
22:25 - 17:40
IAD
-
BHD
14h 15m
1 stop
£597British Airways
Wed, 24 Jun - Sun, 28 Jun
British Airways Logo
10:05 - 17:25
BHD
-
IAD
12h 20m
1 stop
British Airways Logo
20:22 - 17:40
IAD
-
BHD
16h 18m
2 stops
£600British Airways
Wed, 24 Jun - Sun, 28 Jun
British Airways Logo
20:35 - 17:15
BHD
-
IAD
25h 40m
1 stop
British Airways Logo
17:45 - 12:55
IAD
-
BHD
14h 10m
1 stop
£608British Airways
Thu, 23 Apr - Mon, 27 Apr
British Airways Logo
20:35 - 15:55
BHD
-
IAD
24h 20m
1 stop
British Airways Logo
20:11 - 18:45
IAD
-
BHD
17h 34m
2 stops
£624British Airways
Thu, 23 Apr - Mon, 27 Apr
British Airways Logo
14:20 - 20:20
BHD
-
IAD
11h 00m
1 stop
British Airways Logo
20:19 - 17:30
IAD
-
BHD
16h 11m
2 stops
£627British Airways
Thu, 3 Sep - Mon, 7 Sep
British Airways Logo
16:35 - 15:30
BHD
-
IAD
27h 55m
2 stops
British Airways Logo
17:20 - 12:55
IAD
-
BHD
14h 35m
2 stops
£628British Airways
Thu, 3 Sep - Mon, 7 Sep
Multiple Airlines Logo
07:35 - 14:15
BFS
-
IAD
35h 40m
3 stops
Multiple Airlines Logo
20:30 - 23:20
IAD
-
BFS
21h 50m
3 stops
£692Multiple Airlines
Fri, 1 May - Mon, 11 May
Multiple Airlines Logo
09:40 - 19:20
BFS
-
IAD
14h 40m
2 stops
Multiple Airlines Logo
20:30 - 20:40
IAD
-
BFS
19h 10m
2 stops
£706Multiple Airlines
Fri, 1 May - Mon, 11 May

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
24 Jun
BHD10:05Belfast City
12h 20m
1 stop
IAD17:25Washington, D.C. Dulles Intl
28 Jun
IAD22:25Washington, D.C. Dulles Intl
14h 15m
1 stop
BHD17:40Belfast City
£597
British Airways
24 Jun
BHD10:05Belfast City
12h 20m
1 stop
IAD17:25Washington, D.C. Dulles Intl
28 Jun
IAD20:22Washington, D.C. Dulles Intl
16h 18m
2 stops
BHD17:40Belfast City
£600
British Airways
23 Apr
BHD20:35Belfast City
25h 40m
1 stop
IAD17:15Washington, D.C. Dulles Intl
27 Apr
IAD17:45Washington, D.C. Dulles Intl
14h 10m
1 stop
BHD12:55Belfast City
£608

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 25 March 2026.
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 return flight

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 24/6

07:00-22:15

2 stops20h 15m

Washington, D.C. Dulles Intl

Sun 28/6

23:20-20:35

2 stops16h 15m

£571

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 24/6

06:10-22:15

2 stops21h 05m

Washington, D.C. Dulles Intl

Sun 28/6

23:20-20:15

2 stops15h 55m

£584
Fastest return journey

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 24/6

10:05-17:25

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 28/6

22:25-17:40

1 stop14h 15m

£597

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 24/6

10:05-17:25

1 stop12h 20m

Washington, D.C. Dulles Intl

Sun 28/6

20:22-17:40

2 stops16h 18m

£600

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 23/4

20:35-17:15

1 stop25h 40m

Washington, D.C. Dulles Intl

Mon 27/4

17:45-12:55

1 stop14h 10m

£608

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 23/4

20:35-15:55

1 stop24h 20m

Washington, D.C. Dulles Intl

Mon 27/4

20:11-18:45

2 stops17h 34m

£624

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 3/9

14:20-20:20

1 stop11h 00m

Washington, D.C. Dulles Intl

Mon 7/9

20:19-17:30

2 stops16h 11m

£627

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 3/9

16:35-15:30

2 stops27h 55m

Washington, D.C. Dulles Intl

Mon 7/9

17:20-12:55

2 stops14h 35m

£628

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 1/5

07:35-14:15

3 stops35h 40m

Washington, D.C. Dulles Intl

Mon 11/5

20:30-23:20

3 stops21h 50m

£692

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Fri 1/5

09:40-19:20

2 stops14h 40m

Washington, D.C. Dulles Intl

Mon 11/5

20:30-20:40

2 stops19h 10m

£706

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

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

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

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

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

Fastest flight time

20h 15m

Direct flights

None
The fastest flight from Northern Ireland to Washington, D.C. Dulles Intl Airport takes 20h 15m
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

  • 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 were last updated today.

  • How old do you have to be to fly from Northern Ireland 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 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 required travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
College Park
Arlington
Fairfax
Linthicum Heights
Glen Burnie
Front Royal
Laurel
Lutherville Timonium
Winchester
Ellicott City
Cambridge
Lexington Park
Leesburg
Westminster
Woodbridge
Ashburn
Bethesda
Sterling
Alexandria
Silver Spring

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Northern Ireland to Washington, D.C.. momondo saves you time and could save you money on your trip.

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.?

momondo provides multiple filters to help you find the best flight to Washington, D.C. from Northern Ireland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Washington, D.C. from Northern Ireland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 24/4
Fri 1/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.