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Cheap flights from Northern Ireland to Washington, D.C. from £555

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/11. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — WAS
9 Jul — 16 Jul1
1 adult

Cheap flight deals from Northern Ireland to Washington, D.C.

Keep the following information in mind while searching for Northern Ireland to Washington, D.C. flight deals. Data was last updated 4 July 2025.

Round-trip from

£555
American Airlines
  • American Airlines
  • 20/11-24/11
  • 2 total stops
  • 42h 50m total
  • Northern Ireland to Washington, D.C.
Search Deals

Find flight deals from Northern Ireland to Washington, D.C.

Cheapest flights from Northern Ireland to Washington, D.C.
Explore the most affordable flight options available from Northern Ireland to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Thu 20/1115:05BHD - IAD
1 stop29h 30mAmerican Airlines
Mon 24/1121:55IAD - BHD
1 stop13h 20mAmerican Airlines
Deal found 3/7£555
Thu 13/1106:35BHD - DCA
2 stops17h 40mAmerican Airlines
Mon 17/1114:54DCA - BHD
2 stops14h 36mAmerican Airlines
Deal found 3/7£559
Thu 20/1106:30BHD - IAD
1 stop14h 15mDelta
Mon 24/1117:35IAD - BHD
1 stop18h 15mDelta
Deal found 2/7£600
Thu 20/1117:20BHD - IAD
2 stops34h 40mVirgin Atlantic
Mon 24/1112:30IAD - BHD
2 stops23h 20mVirgin Atlantic
Deal found 1/7£607
Sat 16/805:45BFS - IAD
2 stops20h 40mMultiple Airlines
Sat 23/809:45IAD - BFS
3 stops31h 45mMultiple Airlines
Deal found 2/7£807
Tue 15/706:55BHD - IAD
2 stops13h 55mAer Lingus
Thu 17/717:20IAD - BHD
2 stops16h 10mAer Lingus
Deal found 3/7£1,177
Sun 13/717:25BHD - IAD
1 stop27h 10mKLM
Thu 17/717:25IAD - BHD
1 stop18h 30mKLM
Deal found 3/7£1,277
Mon 14/717:25BHD - IAD
2 stops28h 18mMultiple Airlines
Sat 19/717:25IAD - BHD
1 stop18h 30mMultiple Airlines
Deal found 3/7£1,315
Mon 14/709:50BHD - IAD
1 stop12h 45mBritish Airways
Thu 17/722:40IAD - BHD
1 stop11h 50mBritish Airways
Deal found 3/7£1,877
Mon 14/713:50BHD - DCA
2 stops14h 21mBritish Airways
Fri 18/714:54DCA - BHD
2 stops13h 31mBritish Airways
Deal found 3/7£1,949
Mon 14/713:50BHD - BWI
1 stop10h 45mBritish Airways
Fri 18/721:20BWI - BHD
1 stop13h 10mBritish Airways
Deal found 3/7£2,545

Cheapflights Fare Finder

Customise your flight search to find flights from Northern Ireland to Washington, D.C. 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 858,174 searches. Data last updated 4 July 2025.
Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. that are best for you.

Fly from

Northern Ireland

Fly to

Washington, D.C.

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

15:05-15:35

1 stop29h 30m

Washington, D.C. Dulles Intl

Mon 24/11

21:55-16:15

1 stop13h 20m

£555

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 13/11

06:35-19:15

2 stops17h 40m

Washington, D.C. Reagan-National

Mon 17/11

14:54-10:30

2 stops14h 36m

£559

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Mon 24/11

17:35-16:50

1 stop18h 15m

£600

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Thu 20/11

17:20-23:00

2 stops34h 40m

Washington, D.C. Dulles Intl

Mon 24/11

12:30-16:50

2 stops23h 20m

£607

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sat 16/8

05:45-21:04

3 stops20h 19m

Washington, D.C. Dulles Intl

Sat 23/8

09:45-22:30

3 stops31h 45m

£807

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Tue 15/7

06:55-15:50

2 stops13h 55m

Washington, D.C. Dulles Intl

Thu 17/7

17:20-14:30

2 stops16h 10m

£1,177

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 14/7

17:25-15:35

1 stop27h 10m

Washington, D.C. Dulles Intl

Sat 19/7

17:25-21:15

1 stop22h 50m

£1,308

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 14/7

17:25-16:43

2 stops28h 18m

Washington, D.C. Dulles Intl

Sat 19/7

17:25-16:55

1 stop18h 30m

£1,315

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 14/7

09:50-17:35

1 stop12h 45m

Washington, D.C. Dulles Intl

Thu 17/7

22:40-15:30

1 stop11h 50m

£1,877

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 14/7

13:50-23:11

2 stops14h 21m

Washington, D.C. Reagan-National

Fri 18/7

14:54-09:25

2 stops13h 31m

£1,949

Flights are sorted by cheapest return flights first.

Deals found on 3/7

Showing 1-10 of 11 results
1
2

Best time to book a flight from Northern Ireland to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Northern Ireland with our price prediction graph.
Estimated return 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 Northern Ireland to Washington, D.C.

What is the cheapest time of day to fly from NIR to WAS?

Find hourly flight availability from Northern Ireland to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

When flying from Northern Ireland to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated 4 July 2025.
See what other customers who have flown with Delta, KLM, andVirgin Atlantic from Northern Ireland to Washington, D.C. have to say. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,970 reviews
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,363 reviews
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
654 reviews
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,144 reviews
Delta
8.0
Very Good
7,970 reviews
Check prices

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Northern Ireland to Washington, D.C.. 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 Northern Ireland to Washington, D.C.?

    Most travelers choose Belfast Intl - Washington, D.C. Dulles Intl, Belfast Intl - Washington, D.C. Reagan-National or Belfast City - Washington, D.C. Reagan-National when deciding on the best route from Northern Ireland to Washington, D.C..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Northern Ireland to Washington, D.C. 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 Northern Ireland to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of £599). Flying from Northern Ireland to Washington, D.C. in July is currently the most expensive (average of £947). 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

Travelling to a place near Northern Ireland?

Book flights to Northern Ireland if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Arlington
Woodbridge
College Park
Laurel
Tysons

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

See prices for flight routes from nearby airports that may be better suited for you.
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Luton to Dulles Intl flights
London City to Reagan-National flights
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Glasgow Intl to Reagan-National flights
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Aberdeen to Reagan-National flights
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Belfast Intl to Dulles Intl flights
Grimsby to Dulles Intl flights
Belfast City to Dulles Intl flights
Norwich to Dulles Intl flights
Southampton to Dulles Intl flights
Norwich to Reagan-National flights
Cardiff to Dulles Intl flights
Grimsby to Reagan-National flights
Bristol to Reagan-National flights
Southampton to Reagan-National flights
Cardiff to Reagan-National flights
Southend to Dulles Intl flights
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Doncaster to Dulles Intl flights

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How does Cheapflights help users find flights from Northern Ireland to Washington, D.C.?

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Can Cheapflights find flights from Northern Ireland to Washington, D.C. with no change fees?

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Can Cheapflights notify me if prices for flights from Northern Ireland to Washington, D.C. become cheaper?

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