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.

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 Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City or Washington, D.C. Reagan-National - Belfast Intl as they are the most popular.

What is the cheapest month to fly from Washington, D.C. to Northern Ireland?

October can be a great time to fly to Northern Ireland from Washington, D.C. with a flight ticket averaging about $761. Cheapflights users have found deals in the month of October for as cheap as $578. The most expensive prices can be found in the month of July.

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

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

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.

$653+ Flights from Washington, D.C. to Northern Ireland

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

Round-trip from	$653 (British Airways)

From Washington, D.C. (WAS) to Northern Ireland

Search Deals

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

Best flights from Washington, D.C. to Northern Ireland
Discover carefully curated flight deals from Washington, D.C. to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

Thu 1/96:00 pmIAD - BHD

1 stop11h 20mBritish Airways

Mon 1/139:10 amBHD - IAD

1 stop15h 35mBritish Airways

Deal found 12/21

$653

Thu 1/96:05 pmDCA - BHD

2 stops14h 55mAmerican Airlines

Mon 1/1311:30 amBHD - DCA

2 stops16h 11mAmerican Airlines

Deal found 12/21

$665

Tue 2/47:40 pmIAD - BFS

2 stops19h 30mMultiple Airlines

Tue 2/117:10 amBFS - IAD

2 stops16h 15mMultiple Airlines

Deal found 12/21

$673

Thu 1/95:35 pmIAD - BHD

1 stop18h 15mDelta

Mon 1/136:30 amBHD - IAD

2 stops17h 27mDelta

Deal found 12/21

$696

Sun 4/1310:50 pmIAD - BHD

1 stop10h 45mAer Lingus

Sat 4/196:40 amBHD - IAD

2 stops14h 10mAer Lingus

Deal found 12/21

$1,031

Thu 1/98:30 pmBWI - BHD

1 stop12h 30mBritish Airways

Mon 1/1311:30 amBHD - BWI

1 stop12h 15mBritish Airways

Deal found 12/21

$653

Tue 6/175:25 pmIAD - BHD

1 stop22h 40mKLM

Thu 6/266:30 amBHD - IAD

1 stop14h 05mKLM

Deal found 12/21

$4,160

Tue 6/1712:35 pmIAD - BHD

2 stops15h 45mMultiple Airlines

Thu 6/269:35 amBHD - IAD

1 stop15h 35mMultiple Airlines

Deal found 12/21

$3,667

Last-minute flights from Washington, D.C. to Northern Ireland
Discover last-minute flight deals from Washington, D.C. to Northern Ireland. Data last updated December 22, 2024 and is based on user searches.

Thu 1/96:00 pmIAD - BHD

1 stop11h 20mBritish Airways

Mon 1/139:10 amBHD - IAD

1 stop15h 35mBritish Airways

Deal found 12/21

$653

Thu 1/98:30 pmBWI - BHD

1 stop12h 30mBritish Airways

Mon 1/1311:30 amBHD - BWI

1 stop12h 15mBritish Airways

Deal found 12/21

$653

Thu 1/96:05 pmDCA - BHD

2 stops14h 55mAmerican Airlines

Mon 1/1311:30 amBHD - DCA

2 stops16h 11mAmerican Airlines

Deal found 12/21

$665

Thu 1/95:35 pmIAD - BHD

1 stop18h 15mDelta

Mon 1/136:30 amBHD - IAD

2 stops17h 27mDelta

Deal found 12/21

$696

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

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

6:00 pm-10:20 am

1 stop11h 20m

Belfast City

Mon 1/13

9:10 am-7:45 pm

1 stop15h 35m

$653

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Thu 1/9

8:30 pm-2:00 pm

1 stop12h 30m

Belfast City

Mon 1/13

11:30 am-6:45 pm

1 stop12h 15m

$653

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Thu 1/9

6:05 pm-2:00 pm

2 stops14h 55m

Belfast City

Mon 1/13

11:30 am-10:41 pm

2 stops16h 11m

$665

Washington, D.C.Belfast

IAD - BFS

IADBFS

Washington, D.C. Dulles Intl

Tue 2/4

7:40 pm-8:10 pm

2 stops19h 30m

Belfast Intl

Tue 2/11

7:10 am-6:25 pm

2 stops16h 15m

$673

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Thu 1/9

5:35 pm-4:50 pm

1 stop18h 15m

Belfast City

Mon 1/13

6:30 am-6:57 pm

2 stops17h 27m

$696

Washington, D.C.Belfast

DCA - BHD

DCABHD

Washington, D.C. Reagan-National

Sun 4/13

7:45 pm-2:40 pm

2 stops13h 55m

Belfast City

Sat 4/19

7:00 pm-4:29 pm

2 stops26h 29m

$741

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Sun 4/13

10:50 pm-2:35 pm

1 stop10h 45m

Belfast City

Sat 4/19

6:40 am-3:50 pm

2 stops14h 10m

$1,031

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/17

12:35 pm-9:20 am

2 stops15h 45m

Belfast City

Thu 6/26

9:35 am-8:10 pm

1 stop15h 35m

$3,667

Washington, D.C.Belfast

IAD - BHD

IADBHD

Washington, D.C. Dulles Intl

Tue 6/17

5:25 pm-9:05 pm

1 stop22h 40m

Belfast City

Thu 6/26

6:30 am-3:35 pm

1 stop14h 05m

$4,160

BaltimoreBelfast

BWI - BHD

BWIBHD

Baltimore/Washington

Tue 6/17

9:20 pm-3:20 pm

1 stop13h 00m

Belfast City

Thu 6/26

9:35 am-7:30 pm

1 stop14h 55m

$4,651

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 12 results

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.

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

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

Rainfall in Northern Ireland 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

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

Delta

8.0

Very good

8,594 reviews

Reviews

1 / 10

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

Delta

8.0

Very good

8,594 reviews

Delta

8.0

Very good

8,594 reviews

Reviews

1 / 10

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

KLM

7.8

Good

1,342 reviews

Delta

8.0

Very good

8,594 reviews

Reviews

1 / 10

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

8,594 reviews

Reviews

1 / 10

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

Aer Lingus

7.1

Good

1,075 reviews

Delta

8.0

Very good

8,594 reviews

Reviews

1 / 10

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

British Airways

6.6

Okay

6,815 reviews

Delta

8.0

Very good

8,594 reviews

Reviews

1 / 10

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

Related info for your journey

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 Washington, D.C. Dulles Intl - Belfast Intl, Washington, D.C. Dulles Intl - Belfast City 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

Browse thousands of different options on Cheapflights for your next trip

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

Dulles Intl to Heathrow flights

Reagan-National to Heathrow flights

Dulles Intl to Gatwick flights

Dulles Intl to London City flights

Reagan-National to Gatwick flights

Dulles Intl to Edinburgh flights

Dulles Intl to Luton flights

Reagan-National to London City flights

Dulles Intl to Stansted flights

Reagan-National to Edinburgh flights

Dulles Intl to Manchester flights

Reagan-National to Manchester flights

Dulles Intl to Glasgow Intl flights

Reagan-National to Glasgow Intl flights

Dulles Intl to Birmingham flights

Reagan-National to Birmingham flights

Dulles Intl to Southampton flights

Dulles Intl to Leeds flights

Dulles Intl to Belfast Intl flights

Dulles Intl to Belfast City flights

Reagan-National to Belfast City flights

Reagan-National to Belfast Intl flights

Dulles Intl to Liverpool flights

Reagan-National to Leeds flights

Dulles Intl to Newcastle upon Tyne flights

Dulles Intl to Inverness flights

Reagan-National to Luton flights

Reagan-National to Stansted flights

Dulles Intl to Aberdeen flights

Reagan-National to Inverness flights

Reagan-National to Aberdeen flights

Dulles Intl to Bristol flights

Reagan-National to Bristol flights

Dulles Intl to Cardiff flights

Reagan-National to Liverpool flights

Reagan-National to Newcastle upon Tyne flights

Reagan-National to Southampton flights

Dulles Intl to Sumburgh/Shetland flights

Reagan-National to Cardiff flights

Dulles Intl to Southend flights

Dulles Intl to Exeter flights

Dulles Intl to Isle of Islay flights

Dulles Intl to Stornoway flights

Dulles Intl to Bournemouth flights

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

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest$557	Average$818	FlexibilityNo cancel fee	On-time70%

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$653+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Washington, D.C. to Northern Ireland with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

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

Round-trip from

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

Best flights from Washington, D.C. to Northern IrelandDiscover carefully curated flight deals from Washington, D.C. to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

Discover carefully curated flight deals from Washington, D.C. to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.

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

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.

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

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

Rainfall in Northern Ireland by month

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

Temperature in Northern Ireland by month

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

Reviews of airlines servicing Northern Ireland

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?

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

How can I 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?

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

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 Washington, D.C. to Northern Ireland

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

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

100% Free

Book with Flexibility

Travel Smart

Best flights from Washington, D.C. to Northern Ireland
Discover carefully curated flight deals from Washington, D.C. to Northern Ireland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 22, 2024.