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

Currently, November is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $299). Flying from Northern Ireland to Washington, D.C. in June is currently the most expensive (average of $377). 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.?

The most popular route from Northern Ireland to Washington, D.C. is Belfast Intl - Baltimore/Washington. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Reagan-National.

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.

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 vacation 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.

$470+ Flights from Northern Ireland to Washington, D.C.

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

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

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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

Round-trip from	$470 (Mytrip)

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

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 layovers in mind to ensure you get the best travel experience. Data last updated diciembre 18, 2024.

vie. 1/317:15 amBFS - BWI

2 stops14h 45mMultiple Airlines

vie. 2/76:10 pmBWI - BFS

2 stops22h 10mMultiple Airlines

Deal found 12/17

$470

lun. 3/36:35 amBHD - BWI

1 stop17h 10mFinnair

lun. 3/109:30 pmBWI - BHD

1 stop18h 45mFinnair

Deal found 12/16

$845

lun. 3/311:30 amBHD - BWI

1 stop12h 15mBritish Airways

lun. 3/108:19 pmBWI - BHD

2 stops15h 56mBritish Airways

Deal found 12/16

$855

lun. 3/36:30 amBHD - IAD

1 stop14h 15mKLM

lun. 3/1012:30 pmIAD - BHD

2 stops24h 20mKLM

Deal found 12/16

$859

lun. 3/36:35 amBHD - IAD

2 stops16h 26mAmerican Airlines

lun. 3/1010:55 pmIAD - BHD

1 stop11h 15mAmerican Airlines

Deal found 12/16

$862

lun. 3/36:30 amBHD - IAD

1 stop14h 15mDelta

lun. 3/106:35 pmIAD - BHD

1 stop18h 15mDelta

Deal found 12/16

$876

vie. 3/218:40 amBHD - IAD

1 stop11h 55mIberia

vie. 3/287:00 pmIAD - BHD

1 stop11h 30mIberia

Deal found 12/17

$922

vie. 3/216:30 amBHD - DCA

2 stops19h 59mVirgin Atlantic

vie. 3/2812:17 pmDCA - BHD

2 stops24h 33mVirgin Atlantic

Deal found 12/17

$970

vie. 1/316:15 amBFS - IAD

2 stops17h 10mMultiple Airlines

vie. 2/77:40 pmIAD - BFS

2 stops22h 00mMultiple Airlines

Deal found 12/17

$768

lun. 3/36:35 amBHD - DCA

2 stops21h 00mFinnair

lun. 3/106:59 pmDCA - BHD

2 stops17h 16mFinnair

Deal found 12/16

$853

lun. 3/36:35 amBHD - IAD

2 stops16h 26mBritish Airways

lun. 3/101:52 pmIAD - BHD

2 stops20h 18mBritish Airways

Deal found 12/16

$866

lun. 3/36:30 amBHD - DCA

2 stops15h 15mDelta

lun. 3/104:30 pmDCA - BHD

2 stops20h 20mDelta

Deal found 12/16

$882

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 diciembre 18, 2024 and is based on user searches.

vie. 1/317:15 amBFS - BWI

2 stops14h 45mMultiple Airlines

vie. 2/76:10 pmBWI - BFS

2 stops22h 10mMultiple Airlines

Deal found 12/17

$470

vie. 1/316:15 amBFS - IAD

2 stops17h 10mMultiple Airlines

vie. 2/77:40 pmIAD - BFS

2 stops22h 00mMultiple Airlines

Deal found 12/17

$768

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

vie. 1/31

7:15 am-5:00 pm

2 stops14h 45m

Baltimore/Washington

vie. 2/7

6:10 pm-9:20 pm

2 stops22h 10m

$470

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

vie. 1/31

6:15 am-6:25 pm

2 stops17h 10m

Washington, D.C. Dulles Intl

vie. 2/7

7:40 pm-10:40 pm

2 stops22h 00m

$768

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

lun. 3/3

6:35 am-6:45 pm

1 stop17h 10m

Baltimore/Washington

lun. 3/10

9:30 pm-8:15 pm

1 stop18h 45m

$845

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

lun. 3/3

6:35 am-10:35 pm

2 stops21h 00m

Washington, D.C. Reagan-National

lun. 3/10

6:59 pm-4:15 pm

2 stops17h 16m

$853

BelfastBaltimore

BHD - BWI

BHDBWI

Belfast City

lun. 3/3

11:30 am-6:45 pm

1 stop12h 15m

Baltimore/Washington

lun. 3/10

8:19 pm-4:15 pm

2 stops15h 56m

$855

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

lun. 3/3

6:30 am-3:45 pm

1 stop14h 15m

Washington, D.C. Dulles Intl

lun. 3/10

6:35 pm-4:50 pm

1 stop18h 15m

$859

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

lun. 3/3

6:35 am-6:01 pm

2 stops16h 26m

Washington, D.C. Dulles Intl

lun. 3/10

10:55 pm-2:10 pm

1 stop11h 15m

$862

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

lun. 3/3

6:35 am-11:53 pm

2 stops22h 18m

Washington, D.C. Dulles Intl

lun. 3/10

1:52 pm-10:30 am

2 stops16h 38m

$865

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

lun. 3/3

6:30 am-3:45 pm

1 stop14h 15m

Washington, D.C. Dulles Intl

lun. 3/10

6:35 pm-4:50 pm

1 stop18h 15m

$876

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

lun. 3/3

6:30 am-4:45 pm

2 stops15h 15m

Washington, D.C. Reagan-National

lun. 3/10

4:30 pm-4:50 pm

2 stops20h 20m

$882

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 22 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 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 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.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. 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 Washington, D.C. when rainfall is around 2.6 in.

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 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 Washington, D.C.

Peruse reviews from past customers who have flown with KLM, American Airlines and Delta from Northern Ireland to Washington, D.C. to help guide your decision. 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

8,604 reviews

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

8,604 reviews

Delta

8.0

Very good

8,604 reviews

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

1,349 reviews

Delta

8.0

Very good

8,604 reviews

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

1,285 reviews

Delta

8.0

Very good

8,604 reviews

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

668 reviews

Delta

8.0

Very good

8,604 reviews

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

8,604 reviews

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.?
The most popular route from Northern Ireland to Washington, D.C. is Belfast Intl - Baltimore/Washington. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast City - Washington, D.C. Reagan-National.
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 vacation 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, November is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $299). Flying from Northern Ireland to Washington, D.C. in June is currently the most expensive (average of $377). 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

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$470+ Cheap flights from Northern Ireland to Washington, D.C. (WAS)

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Northern Ireland to Washington, D.C. 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 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 layovers in mind to ensure you get the best travel experience. Data last updated diciembre 18, 2024.

Discover carefully curated flight deals from Northern Ireland to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 18, 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.

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.

Peruse reviews from past customers who have flown with KLM, American Airlines and Delta from Northern Ireland to Washington, D.C. to help guide your decision. You can also see how each airline stacks up in terms of 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.

100% Free

Book with Flexibility

Travel Smart

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 layovers in mind to ensure you get the best travel experience. Data last updated diciembre 18, 2024.