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Northern Ireland

$579+ Cheap flights from Washington, D.C. (WAS) to Northern Ireland

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — BFS
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Washington, D.C. to Northern Ireland

Keep the following information in mind while searching for Washington, D.C. to Northern Ireland flight deals. Data was last updated mayo 1, 2025.

Round-trip from

$579
(PLAY)

Popular in

June

Cheapest in

January

Average price

$664
From Washington, D.C. (WAS) to Northern Ireland
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
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Find flight deals from Washington, D.C. to Northern Ireland

Cheapest flights from Washington, D.C. to Northern Ireland
Explore the most affordable flight options available from Washington, D.C. to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This PLAY deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/26:50 pmBWI - BFS
2 stops23h 20mMultiple Airlines
mar. 9/96:45 amBFS - BWI
2 stops15h 55mMultiple Airlines
Deal found 4/30$579
This Gotogate deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/37:25 pmIAD - BHD
1 stop11h 50mBritish Airways
vie. 5/162:00 pmBHD - IAD
1 stop11h 05mBritish Airways
Deal found 4/30$584
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/610:45 pmIAD - BHD
1 stop11h 20mAmerican Airlines
sáb. 12/206:30 amBHD - IAD
1 stop14h 05mAmerican Airlines
Deal found 4/30$587
This Priceline deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/129:20 pmBWI - BHD
1 stop13h 20mBritish Airways
mié. 5/2111:30 amBHD - BWI
1 stop13h 05mBritish Airways
Deal found 4/30$589
This American Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/129:20 pmBWI - BHD
1 stop10h 35mAmerican Airlines
mié. 5/2110:00 amBHD - BWI
2 stops17h 15mAmerican Airlines
Deal found 4/30$597
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/23:25 pmDCA - BHD
2 stops14h 10mBritish Airways
mar. 9/99:35 amBHD - DCA
2 stops17h 25mBritish Airways
Deal found 4/30$602
This Delta deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/31:44 pmIAD - BHD
2 stops22h 11mDelta
vie. 5/166:30 amBHD - IAD
2 stops18h 09mDelta
Deal found 4/30$718
This KLM deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 7/68:30 pmIAD - BHD
2 stops15h 25mKLM
dom. 8/246:30 amBHD - IAD
1 stop14h 05mKLM
Deal found 4/29$750
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/109:40 amDCA - BFS
3 stops26h 00mMultiple Airlines
mar. 6/178:20 amBFS - DCA
3 stops18h 33mMultiple Airlines
Deal found 4/29$763
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/38:30 pmIAD - BFS
2 stops14h 00mMultiple Airlines
vie. 5/167:35 amBFS - IAD
2 stops16h 45mMultiple Airlines
Deal found 4/30$787
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/57:40 pmBWI - BHD
2 stops20h 35mDelta
dom. 8/246:30 amBHD - BWI
2 stops30h 34mDelta
Deal found 4/29$820
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 7/55:29 pmDCA - BHD
2 stops18h 26mDelta
dom. 8/246:30 amBHD - DCA
2 stops21h 33mDelta
Deal found 4/29$820

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Northern Ireland that are best for you.

Fly from

Washington, D.C.

Fly to

Northern Ireland

Route

Depart

Return

Price

BaltimoreBelfast

BWI - BFS

BWIBFS

Baltimore/Washington

mar. 9/2

6:50 pm-11:10 pm

2 stops23h 20m

Belfast Intl

mar. 9/9

6:45 am-5:40 pm

2 stops15h 55m

$579

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

sáb. 9/6

10:45 pm-3:05 pm

1 stop11h 20m

Belfast City

sáb. 12/20

6:30 am-3:35 pm

1 stop14h 05m

$587

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

mar. 9/2

7:25 pm-10:35 am

1 stop10h 10m

Belfast City

mar. 9/9

6:35 am-5:35 pm

1 stop16h 00m

$589

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

lun. 5/12

9:20 pm-3:40 pm

1 stop13h 20m

Belfast City

mié. 5/21

11:30 am-7:35 pm

1 stop13h 05m

$589

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

lun. 5/12

9:20 pm-12:55 pm

1 stop10h 35m

Belfast City

mié. 5/21

10:00 am-10:15 pm

2 stops17h 15m

$597

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

mar. 9/2

3:25 pm-10:35 am

2 stops14h 10m

Belfast City

mar. 9/9

9:35 am-10:00 pm

2 stops17h 25m

$602

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

dom. 7/6

8:30 pm-4:55 pm

2 stops15h 25m

Belfast City

dom. 8/24

6:30 am-3:35 pm

1 stop14h 05m

$750

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

dom. 7/6

12:13 pm-9:15 pm

2 stops28h 02m

Belfast City

dom. 8/24

5:25 pm-7:37 pm

2 stops31h 12m

$760

Washington, D.C.Belfast

DCA - BFS

DCABFS

Washington, D.C. Reagan-National

mar. 6/10

9:40 am-4:40 pm

3 stops26h 00m

Belfast Intl

mar. 6/17

8:20 am-9:53 pm

3 stops18h 33m

$763

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

sáb. 7/5

7:40 pm-9:15 pm

2 stops20h 35m

Belfast City

dom. 8/24

6:30 am-8:04 am

2 stops30h 34m

$820

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 14 results
1
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Best time to book a flight from Washington, D.C. to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Washington, D.C. with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. to Northern Ireland

What is the cheapest month to book a flight from Washington, D.C. to Northern Ireland?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Northern Ireland (average of $657). Flying from Washington, D.C. to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated mayo 1, 2025.
Read through reviews of airlines operating flights from Washington, D.C. to Northern Ireland, such as Delta, KLM and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.0
Good
1,076 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
British Airways
6.6
Okay
6,842 reviews
Delta
8.0
Very good
7,934 reviews

Boarding

8.2

Comfort

7.9

Food

7.3

Entertainment

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the most popular routes from Washington, D.C. to Northern Ireland?

    When deciding which route to take from Washington, D.C. to Northern Ireland consider Baltimore/Washington - Belfast Intl, Washington, D.C. Dulles Intl - Belfast Intl or Washington, D.C. Reagan-National - Belfast Intl as they are the most popular.

  • Can I find deals for flights from Washington, D.C. to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Northern Ireland.

  • Can I find deals for business class flights from Washington, D.C. to Northern Ireland?

    Yes. Cheapflights offers flight deals from Washington, D.C. to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to Northern Ireland (average of $657). Flying from Washington, D.C. to Northern Ireland in June is currently the most expensive (average of $1,189). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Washington, D.C. to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to London City flights
Reagan-National to Gatwick flights
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Top airline flying from Washington, D.C. to Northern Ireland

Discover the top airline that operate flights from Washington, D.C. to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$578Average$864FlexibilityNo cancel feeOn-time70%

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