What are the cheapest airlines to fly from Northern Ireland to District of Columbia one-way?

To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $989. British Airways flights start at $1,086 while deals on Virgin Atlantic start at $1,743 one-way.

What is the cheapest month to book a flight from Northern Ireland to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Northern Ireland to District of Columbia (average of $309). Flying from Northern Ireland to District of Columbia in July is currently the most expensive (average of $349). 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 is the cheapest time of day to fly from NIR to DC?

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

How can I find direct flights from Northern Ireland to District of Columbia?

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

Can I find deals for business class flights from Northern Ireland to District of Columbia?

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

$588+ Flights from Northern Ireland to District of Columbia

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Cheap flight deals from Northern Ireland to District of Columbia

Round-trip from	$698 (TravelUp)
One-way from	$588 (Mytrip)

From Northern Ireland to District of Columbia

Search Deals

One-way flight from Northern Ireland to District of Columbia

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Find flight deals from Northern Ireland to District of Columbia

Cheapest flights from Northern Ireland to District of Columbia
Explore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

Mon 9/81:50 pmBHD - IAD

1 stop11h 20mBritish Airways

Mon 9/225:50 pmIAD - BHD

1 stop10h 00mBritish Airways

Deal found 6/15

$698

Mon 9/87:30 pmBHD - DCA

2 stops32h 37mFinnair

Mon 9/227:23 pmDCA - BHD

2 stops34h 12mFinnair

Deal found 6/15

$779

Mon 9/86:55 amBHD - IAD

2 stops13h 55mAer Lingus

Mon 9/228:25 pmIAD - BHD

2 stops16h 50mAer Lingus

Deal found 6/15

$1,085

Best flights from Northern Ireland to District of Columbia
Discover carefully curated flight deals from Northern Ireland to District of Columbia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2025.

Mon 9/81:50 pmBHD - IAD

1 stop11h 20mBritish Airways

Mon 9/225:50 pmIAD - BHD

1 stop10h 00mBritish Airways

Deal found 6/15

$698

Mon 9/87:30 pmBHD - DCA

2 stops32h 37mFinnair

Mon 9/227:23 pmDCA - BHD

2 stops34h 12mFinnair

Deal found 6/15

$779

Mon 9/86:55 amBHD - IAD

2 stops13h 55mAer Lingus

Mon 9/228:25 pmIAD - BHD

2 stops16h 50mAer Lingus

Deal found 6/15

$1,085

One-way flights from Northern Ireland to District of Columbia
Search for one-way flight options from Northern Ireland to District of Columbia. Find affordable one-way fares based on user searches. Data last updated June 15, 2025.

Sun 7/206:45 amBFS - DCA

3 stops34h 18mMultiple Airlines

Deal found 6/15

$588

Sun 7/206:45 amBFS - IAD

3 stops37h 11mMultiple Airlines

Deal found 6/15

$647

Mon 7/216:45 pmBHD - IAD

2 stops24h 34mMultiple Airlines

Deal found 6/15

$749

Sun 7/207:30 amBHD - DCA

3 stops41h 12mMultiple Airlines

Deal found 6/15

$772

Mon 6/306:45 pmBHD - IAD

2 stops29h 45mAer Lingus

Deal found 6/13

$989

Mon 7/2112:15 pmBHD - IAD

1 stop12h 55mBritish Airways

Deal found 6/15

$1,086

Mon 6/306:30 amBHD - IAD

1 stop14h 05mVirgin Atlantic

Deal found 6/14

$1,743

Mon 6/306:30 amBHD - DCA

2 stops15h 02mKLM

Deal found 6/14

$1,772

Sun 7/206:50 amBHD - IAD

1 stop14h 05mIberia

Deal found 6/13

$2,092

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 9/8

1:50 pm-8:10 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Mon 9/22

5:50 pm-8:50 am

1 stop10h 00m

$698

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 9/8

7:30 pm-11:07 pm

2 stops32h 37m

Washington, D.C. Reagan-National

Mon 9/22

7:23 pm-10:35 am

2 stops34h 12m

$779

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 9/8

6:55 am-3:50 pm

2 stops13h 55m

Washington, D.C. Dulles Intl

Mon 9/22

8:25 pm-6:15 pm

2 stops16h 50m

$1,085

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Sun 7/20

6:45 am-12:03 pm

3 stops34h 18m

$588

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Sun 7/20

6:45 am-2:56 pm

3 stops37h 11m

$647

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 7/21

6:45 pm-2:19 pm

2 stops24h 34m

$749

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Sun 7/20

7:30 am-7:42 pm

3 stops41h 12m

$772

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 6/30

6:45 pm-7:30 pm

2 stops29h 45m

$989

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 7/21

12:15 pm-8:10 pm

1 stop12h 55m

$1,086

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Mon 6/30

6:30 am-3:35 pm

1 stop14h 05m

$1,743

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 12 results

Best time to book a flight from Northern Ireland to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Northern Ireland 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 Northern Ireland to District of Columbia

Rainfall in District of Columbia by month

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

If weather is an important factor for your trip to District of Columbia, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing District of Columbia

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

KLM

7.8

Good

1,361 reviews

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Finnair

7.6

Good

1,291 reviews

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Virgin Atlantic

7.4

Good

652 reviews

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Aer Lingus

7.1

Good

1,117 reviews

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Iberia

7.0

Good

2,778 reviews

KLM

7.8

Good

1,361 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.

Related info for your journey

What are the cheapest airlines to fly from Northern Ireland to District of Columbia one-way?
To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $989. British Airways flights start at $1,086 while deals on Virgin Atlantic start at $1,743 one-way.
Can I find deals for flights from Northern Ireland to District of Columbia that include hotel bookings?
Yes. In addition to deals on Northern Ireland to District of Columbia flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to District of Columbia?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to District of Columbia.
Can I find deals for business class flights from Northern Ireland to District of Columbia?
Yes. Cheapflights offers flight deals from Northern Ireland to District of Columbia 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 District of Columbia?
Currently, August is the cheapest month in which you can book a flight from Northern Ireland to District of Columbia (average of $309). Flying from Northern Ireland to District of Columbia in July is currently the most expensive (average of $349). 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

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$588+ Cheap flights from Northern Ireland to District of Columbia

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/20. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Northern Ireland to District of Columbia with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Northern Ireland to District of Columbia

Keep the following information in mind while searching for Northern Ireland to District of Columbia flight deals. Data was last updated June 15, 2025.

Round-trip from

One-way from

Find flight deals from Northern Ireland to District of Columbia

Cheapest flights from Northern Ireland to District of ColumbiaExplore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

Explore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to District of Columbia that are best for you.

Best time to book a flight from Northern Ireland to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Northern Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to District of Columbia

Rainfall in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

Reviews of airlines servicing District of Columbia

Related info for your journey

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

What are the cheapest airlines to fly from Northern Ireland to District of Columbia one-way?

Can I find deals for flights from Northern Ireland to District of Columbia that include hotel bookings?

How can I find direct flights from Northern Ireland to District of Columbia?

Can I find deals for business class flights from Northern Ireland to District of Columbia?

What is the cheapest month to book a flight from Northern Ireland to District of Columbia?

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 District of Columbia

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Northern Ireland to District of Columbia
Explore the most affordable flight options available from Northern Ireland to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2025.