Cheap flights from Washington, D.C. to Northern Ireland from $272

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Northern Ireland departing on 9/15. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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.

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

Cheap round-trip flights

 Logo
6:50 pm - 1:30 pmBWI-BFS
13h 40m2 stops
 Logo
6:05 am - 5:40 pmBFS-BWI
16h 35m2 stops
vie., sep. 19 - vie., sep. 26
 Logo
6:50 pm - 11:05 pmBWI-BFS
23h 15m2 stops
 Logo
9:30 pm - 5:40 pmBFS-BWI
25h 10m2 stops
sáb., oct. 4 - sáb., oct. 11
British Airways Logo
7:20 pm - 11:10 amIAD-BHD
11h 50m1 stop
British Airways Logo
6:30 am - 3:35 pmBHD-IAD
14h 05m1 stop
$626British Airways
Find Deal
sáb., nov. 1 - dom., nov. 9
British Airways Logo
6:20 pm - 9:10 amIAD-BHD
9h 50m1 stop
British Airways Logo
5:35 pm - 3:35 pmBHD-IAD
27h 00m1 stop
$632British Airways
Find Deal
mié., nov. 12 - dom., nov. 16
British Airways Logo
5:50 pm - 9:05 amIAD-BHD
10h 15m1 stop
British Airways Logo
8:05 pm - 6:51 pmBHD-IAD
27h 46m2 stops
$636British Airways
Find Deal
dom., sep. 14 - dom., sep. 21
American Airlines Logo
10:40 pm - 8:45 pmIAD-BHD
17h 05m1 stop
American Airlines Logo
6:35 am - 8:10 pmBHD-IAD
18h 35m1 stop
$639American Airlines
Find Deal
vie., sep. 19 - vie., sep. 26
American Airlines Logo
7:20 pm - 9:10 amIAD-BHD
9h 50m1 stop
American Airlines Logo
6:30 am - 7:21 pmBHD-IAD
17h 51m2 stops
$761American Airlines
Find Deal
sáb., nov. 1 - dom., nov. 9
Delta Logo
8:17 pm - 4:55 pmIAD-BHD
15h 38m2 stops
Delta Logo
6:30 am - 7:37 pmBHD-IAD
18h 07m2 stops
$831Delta
Find Deal
vie., sep. 26 - lun., sep. 29
Virgin Atlantic Logo
5:00 pm - 4:55 pmDCA-BHD
18h 55m2 stops
Virgin Atlantic Logo
6:30 am - 10:07 pmBHD-DCA
20h 37m2 stops
$831Virgin Atlantic
Find Deal
mié., oct. 8 - dom., oct. 12
Delta Logo
8:17 pm - 4:55 pmIAD-BHD
15h 38m2 stops
Delta Logo
6:30 am - 7:37 pmBHD-IAD
18h 07m2 stops
$832Delta
Find Deal
vie., sep. 26 - lun., sep. 29

Virgin Atlantic flights from Washington, D.C. to Northern Ireland

Our best Virgin Atlantic deals on Washington, D.C. to Northern Ireland flight tickets
Virgin Atlantic
Aug 25
IAD5:25 pmWashington, D.C. Dulles Intl
22h 50m
1 stop
BHD9:15 pmBelfast City
Sep 8
BHD6:30 amBelfast City
14h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
Virgin Atlantic
Oct 8
DCA5:00 pmWashington, D.C. Reagan-National
18h 55m
2 stops
BHD4:55 pmBelfast City
Oct 12
BHD6:30 amBelfast City
20h 37m
2 stops
DCA10:07 pmWashington, D.C. Reagan-National

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

Our best British Airways deals on Washington, D.C. to Northern Ireland flight tickets
British Airways
Nov 1
IAD7:20 pmWashington, D.C. Dulles Intl
11h 50m
1 stop
BHD11:10 amBelfast City
Nov 9
BHD6:30 amBelfast City
14h 05m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
British Airways
Aug 25
IAD4:36 pmWashington, D.C. Dulles Intl
18h 04m
2 stops
BHD3:40 pmBelfast City
Sep 8
BHD6:30 pmBelfast City
25h 30m
2 stops
IAD3:00 pmWashington, D.C. Dulles Intl
British Airways
Nov 12
IAD6:20 pmWashington, D.C. Dulles Intl
9h 50m
1 stop
BHD9:10 amBelfast City
Nov 16
BHD5:35 pmBelfast City
27h 00m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Northern Ireland 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 832,500 searches. Data last updated agosto 20, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

vie. 9/19

6:50 pm-1:30 pm

2 stops13h 40m

Belfast Intl

vie. 9/26

6:05 am-5:40 pm

2 stops16h 35m

$588

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

sáb. 10/4

6:50 pm-11:05 pm

2 stops23h 15m

Belfast Intl

sáb. 10/11

9:30 pm-5:40 pm

2 stops25h 10m

$601

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sáb. 11/1

7:20 pm-11:10 am

1 stop11h 50m

Belfast City

dom. 11/9

6:30 am-3:35 pm

1 stop14h 05m

$626

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mié. 11/12

6:20 pm-9:10 am

1 stop9h 50m

Belfast City

dom. 11/16

5:35 pm-3:35 pm

1 stop27h 00m

$632

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

dom. 9/14

5:50 pm-9:05 am

1 stop10h 15m

Belfast City

dom. 9/21

8:05 pm-6:51 pm

2 stops27h 46m

$636

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 9/19

10:40 pm-8:45 pm

1 stop17h 05m

Belfast City

vie. 9/26

6:35 am-8:10 pm

1 stop18h 35m

$639

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sáb. 11/1

7:20 pm-9:10 am

1 stop9h 50m

Belfast City

dom. 11/9

6:30 am-7:21 pm

2 stops17h 51m

$761

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 9/26

8:17 pm-4:55 pm

2 stops15h 38m

Belfast City

lun. 9/29

6:30 am-7:37 pm

2 stops18h 07m

$831

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mié. 10/8

5:00 pm-4:55 pm

2 stops18h 55m

Belfast City

dom. 10/12

6:30 am-10:07 pm

2 stops20h 37m

$831

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

vie. 9/26

8:17 pm-4:55 pm

2 stops15h 38m

Belfast City

lun. 9/29

6:30 am-7:37 pm

2 stops18h 07m

$832

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
2

See travel insights to Northern Ireland from

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

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 Northern Ireland?

The cheapest month to fly to Northern Ireland from Washington, D.C. is in February. Flight prices, which tend to average around $618, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Northern Ireland from Washington, D.C. during August instead. Flights to Northern Ireland in August, while not as cheap as those in February, still average around $618.

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Tuesday when prices can be found for as low as $758. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. to Northern Ireland for around $845.

What is the cheapest time of day to depart on your flight to Northern Ireland?

In the afternoon is the cheapest time of day to fly from Washington, D.C. to Northern Ireland when you can find flight prices for as low as $767. Flying to Northern Ireland in the afternoon is an ideal time because this is during off-peak travel hours. Flights in the evening are often more expensive with an average ticket price of $800.

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

You could potentially save up to 26% on your flight if you consider stops on a Washington, D.C. to Northern Ireland flight.

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

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

Direct flights

None
There are no direct flights from Washington, D.C. to Northern Ireland. There are no popular flight routes from Washington, D.C. to Northern Ireland.
  • When did momondo last update prices for flights from Washington, D.C. to Northern Ireland?

    Prices for flights from Washington, D.C. to Northern Ireland are updated daily.

  • How many operators does momondo search for flights from Washington, D.C. to Northern Ireland?

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

    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 Washington, D.C. to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The required travel and health documents for your Northern Ireland 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 Northern Ireland. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Washington, D.C. to Northern Ireland

Compare and see reviews for airlines that fly from Washington, D.C. to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $620Free CancellationRating
6.7
7,289 reviews
Search British Airways flights

Why use momondo?

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

Finding the right flight to Northern Ireland from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

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

Yes. All flights to Northern Ireland 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 Northern Ireland?

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

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

If you are simply researching potential flights to Northern Ireland, momondo offers a useful price alert feature which will track prices for flights to Northern Ireland from Washington, D.C. and alert you when they change.

An easier way to manage your Northern Ireland 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.
1 adult
lun. 8/25
lun. 9/1

Find better results for your trip to Northern Ireland

Popular cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo