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 £898). 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.

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

Most travelers choose Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl 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.

£371+ Flights from Northern Ireland to Washington, D.C.

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

Round-trip from	£371

31/1-7/2
4 total stops
36h 55m total
Northern Ireland to Washington, D.C.

Search Deals

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

Best flights from Northern Ireland to Washington, D.C.
Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 December 2024.

Fri 31/107:15BFS - BWI

2 stops14h 45mMultiple Airlines

Fri 7/218:10BWI - BFS

2 stops22h 10mMultiple Airlines

Deal found 17/12£371

Mon 3/306:35BHD - BWI

1 stop17h 10mFinnair

Mon 10/321:30BWI - BHD

1 stop18h 45mFinnair

Deal found 16/12£668

Sat 18/111:15BHD - IAD

1 stop13h 30mIberia

Tue 21/118:00IAD - BHD

1 stop11h 30mIberia

Deal found 16/12£672

Sat 18/106:30BHD - IAD

2 stops33h 55mKLM

Tue 21/119:37IAD - BHD

2 stops40h 13mKLM

Deal found 16/12£673

Mon 3/311:30BHD - BWI

1 stop12h 15mBritish Airways

Mon 10/320:19BWI - BHD

2 stops15h 56mBritish Airways

Deal found 16/12£675

Mon 3/306:35BHD - IAD

2 stops16h 26mAmerican Airlines

Mon 10/322:55IAD - BHD

1 stop11h 15mAmerican Airlines

Deal found 16/12£681

Sat 18/106:30BHD - IAD

1 stop14h 15mDelta

Tue 21/117:35IAD - BHD

1 stop22h 25mDelta

Deal found 16/12£682

Fri 21/306:30BHD - DCA

2 stops19h 59mVirgin Atlantic

Fri 28/312:17DCA - BHD

2 stops24h 33mVirgin Atlantic

Deal found 17/12£766

Thu 30/119:45BFS - IAD

3 stops27h 55mMultiple Airlines

Thu 6/219:40IAD - BFS

2 stops18h 50mMultiple Airlines

Deal found 16/12£514

Mon 3/306:35BHD - DCA

2 stops21h 00mFinnair

Mon 10/318:59DCA - BHD

2 stops17h 16mFinnair

Deal found 16/12£674

Mon 3/311:30BHD - BWI

1 stop12h 15mIberia

Mon 10/321:30BWI - BHD

1 stop12h 40mIberia

Deal found 16/12£684

Mon 3/306:35BHD - IAD

2 stops16h 26mBritish Airways

Mon 10/313:52IAD - BHD

2 stops20h 18mBritish Airways

Deal found 16/12£684

Last-minute flights from Northern Ireland to Washington, D.C.
Discover last-minute flight deals from Northern Ireland to Washington, D.C.. Data last updated 17 December 2024 and is based on user searches.

Sat 18/111:15BHD - IAD

1 stop13h 30mIberia

Tue 21/118:00IAD - BHD

1 stop11h 30mIberia

Deal found 16/12£672

Sat 18/117:20BHD - IAD

1 stop27h 25mKLM

Tue 21/119:37IAD - BHD

2 stops40h 13mKLM

Deal found 16/12£673

Sat 18/106:30BHD - IAD

1 stop14h 15mDelta

Tue 21/117:35IAD - BHD

1 stop18h 15mDelta

Deal found 16/12£682

Sat 18/106:30BHD - DCA

2 stops20h 30mDelta

Tue 21/119:36DCA - BHD

2 stops16h 14mDelta

Deal found 16/12£691

Sat 18/106:30BHD - DCA

2 stops21h 09mFinnair

Tue 21/117:49DCA - BHD

2 stops17h 56mFinnair

Deal found 16/12£697

Sat 18/111:15BHD - IAD

1 stop13h 30mBritish Airways

Tue 21/121:55IAD - BHD

1 stop12h 00mBritish Airways

Deal found 16/12£702

Sat 18/106:30BHD - BWI

2 stops18h 27mBritish Airways

Tue 21/117:26BWI - BHD

2 stops18h 19mBritish Airways

Deal found 16/12£719

Sat 18/111:15BHD - DCA

2 stops16h 24mBritish Airways

Tue 21/117:49DCA - BHD

2 stops14h 46mBritish Airways

Deal found 16/12£763

Sat 18/106:30BHD - BWI

2 stops15h 26mDelta

Tue 21/117:33BWI - BHD

2 stops18h 17mDelta

Deal found 16/12£1,235

Sat 18/118:00BHD - BWI

1 stop29h 45mMultiple Airlines

Tue 21/117:26BWI - BHD

2 stops18h 19mMultiple Airlines

Deal found 16/12£2,597

Thu 30/119:45BFS - IAD

3 stops27h 55mMultiple Airlines

Thu 6/219:40IAD - BFS

2 stops18h 50mMultiple Airlines

Deal found 16/12£514

Fri 31/107:15BFS - BWI

2 stops14h 45mMultiple Airlines

Fri 7/218:10BWI - BFS

2 stops22h 10mMultiple Airlines

Deal found 17/12£371

Find flights from Northern Ireland to Washington, D.C. within your budget

Fly from

Fly to

Route

Depart

Return

Price

BelfastBaltimore

BFS - BWI

BFSBWI

Belfast Intl

Fri 31/1

07:15-17:00

2 stops14h 45m

Baltimore/Washington

Fri 7/2

18:10-21:20

2 stops22h 10m

£371

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Thu 30/1

19:45-18:40

3 stops27h 55m

Washington, D.C. Dulles Intl

Thu 6/2

19:40-19:30

2 stops18h 50m

£514

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 3/3

06:35-18:45

1 stop17h 10m

Baltimore/Washington

Mon 10/3

21:30-20:15

1 stop18h 45m

£668

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 18/1

11:15-19:45

1 stop13h 30m

Washington, D.C. Dulles Intl

Tue 21/1

18:00-10:30

1 stop11h 30m

£672

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 18/1

17:20-15:45

1 stop27h 25m

Washington, D.C. Dulles Intl

Tue 21/1

19:37-16:50

2 stops40h 13m

£673

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 3/3

06:35-22:35

2 stops21h 00m

Washington, D.C. Reagan-National

Mon 10/3

18:59-16:15

2 stops17h 16m

£674

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 3/3

11:30-18:45

1 stop12h 15m

Baltimore/Washington

Mon 10/3

20:19-16:15

2 stops15h 56m

£675

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 3/3

06:35-18:01

2 stops16h 26m

Washington, D.C. Dulles Intl

Mon 10/3

22:55-14:10

1 stop11h 15m

£681

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Sat 18/1

06:30-15:45

1 stop14h 15m

Washington, D.C. Dulles Intl

Tue 21/1

17:35-16:50

1 stop18h 15m

£682

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

Mon 3/3

11:30-18:45

1 stop12h 15m

Baltimore/Washington

Mon 10/3

21:30-14:10

1 stop12h 40m

£684

Flights are sorted by cheapest return flights first.

Deals found on 17/12

Showing 1-10 of 23 results

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.

Travel insights for flights from Northern Ireland to Washington, D.C.

Get recent, data-driven insights about flights from Northern Ireland to Washington, D.C. including ideal travel times, pricing trends, and more.

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

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.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. when rainfall is around 66.0 mm.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Iberia, KLM and American Airlines from Northern Ireland to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

8,615 reviews

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,351 reviews

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.7

Good

1,287 reviews

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.5

Good

667 reviews

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

8,615 reviews

Check prices

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the most popular routes from Northern Ireland to Washington, D.C.?
Most travelers choose Belfast Intl - Baltimore/Washington, Belfast Intl - Washington, D.C. Dulles Intl 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 £898). 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

Browse thousands of different options on Cheapflights for your next trip

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

Heathrow to Dulles Intl flights

Gatwick to Dulles Intl flights

London City to Dulles Intl flights

Heathrow to Reagan-National flights

Gatwick to Reagan-National flights

Stansted to Dulles Intl flights

Luton to Dulles Intl flights

Manchester to Dulles Intl flights

London City to Reagan-National flights

Manchester to Reagan-National flights

Edinburgh to Dulles Intl flights

Bristol to Dulles Intl flights

Birmingham to Dulles Intl flights

Glasgow Intl to Dulles Intl flights

Edinburgh to Reagan-National flights

Birmingham to Reagan-National flights

Glasgow Intl to Reagan-National flights

Southampton to Dulles Intl flights

Newcastle upon Tyne to Dulles Intl flights

Cardiff to Dulles Intl flights

Newcastle upon Tyne to Reagan-National flights

Cardiff to Reagan-National flights

Leeds to Dulles Intl flights

Leeds to Reagan-National flights

Aberdeen to Reagan-National flights

Bristol to Reagan-National flights

Aberdeen to Dulles Intl flights

Southampton to Reagan-National flights

Inverness to Reagan-National flights

Inverness to Dulles Intl flights

Grimsby to Dulles Intl flights

Belfast Intl to Dulles Intl flights

Norwich to Reagan-National flights

Grimsby to Reagan-National flights

Norwich to Dulles Intl flights

Belfast City to Dulles Intl flights

Exeter to Dulles Intl flights

Doncaster to Dulles Intl flights

Southend to Dulles Intl flights

Complete your trip

Washington, D.C. car hire

Washington, D.C. Dulles Intl Airport car hire

Baltimore/Washington Airport car hire

Washington, D.C. Reagan-National Airport car hire

Georgetown car hire

Dupont Circle car hire

Capitol Hill car hire

Foggy Bottom - West End car hire

Southwest Waterfront car hire

Columbia Heights car hire

Shaw car hire

Petworth car hire

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Washington, D.C. Dulles Intl Airport to Dublin flights

Baltimore to Atlanta flights

Washington, D.C. Dulles Intl Airport to London Heathrow Airport flights

Top airline flying from Northern Ireland to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£720	Average£754	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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

Deals for Northern Ireland to Washington, D.C. flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Washington, D.C.?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Northern Ireland to Washington, D.C..

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

Need flexible booking options for your flight to Washington, D.C. from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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

Not ready to book yet? You can track prices for flights from Northern Ireland to Washington, D.C. on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Northern Ireland to Washington, D.C. from £371

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 31/1. Fares are subject to change and may not be available on all flights or dates of travel.

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

Round-trip from

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

Best flights from Northern Ireland to Washington, D.C.Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 December 2024.

Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 December 2024.

Find flights from Northern Ireland to Washington, D.C. within your budget

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.

Travel insights for flights from Northern Ireland to Washington, D.C.

Get recent, data-driven insights about flights from Northern Ireland to Washington, D.C. including ideal travel times, pricing trends, and more.

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 17 December 2024.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Read reviews from past customers who have flown Iberia, KLM and American Airlines from Northern Ireland to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

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.?

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

How can I 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.?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Northern Ireland to Washington, D.C.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Washington, D.C.?

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

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

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Best flights from Northern Ireland to Washington, D.C.
Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 December 2024.