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

Currently, August is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $309). Flying from Northern Ireland to Washington, D.C. in June is currently the most expensive (average of $389). 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 City - Washington, D.C. Dulles Intl. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast Intl - Baltimore/Washington.

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.

$826+ Flights from Northern Ireland to Washington, D.C.

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

Round-trip from	$826 (Mytrip)

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

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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 febrero 20, 2025.

dom. 4/61:15 pmBFS - BWI

3 stops39h 43mMultiple Airlines

dom. 4/135:50 amBWI - BFS

3 stops35h 30mMultiple Airlines

Deal found 2/20

$826

dom. 4/69:00 pmBFS - IAD

3 stops27h 05mMultiple Airlines

dom. 4/138:45 pmIAD - BFS

3 stops20h 40mMultiple Airlines

Deal found 2/20

$861

dom. 2/237:30 amBHD - IAD

3 stops34h 30mMultiple Airlines

mar. 2/257:40 pmIAD - BHD

2 stops12h 30mMultiple Airlines

Deal found 2/19

$1,265

dom. 2/235:20 pmBHD - IAD

1 stop27h 25mKLM

mar. 2/255:35 pmIAD - BHD

1 stop18h 15mKLM

Deal found 2/19

$2,807

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 febrero 20, 2025.

dom. 4/61:15 pmBFS - BWI

3 stops39h 43mMultiple Airlines

dom. 4/135:50 amBWI - BFS

3 stops35h 30mMultiple Airlines

Deal found 2/20

$826

dom. 4/69:00 pmBFS - IAD

3 stops27h 05mMultiple Airlines

dom. 4/138:45 pmIAD - BFS

3 stops20h 40mMultiple Airlines

Deal found 2/20

$861

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 febrero 20, 2025 and is based on user searches.

dom. 2/237:30 amBHD - IAD

3 stops34h 30mMultiple Airlines

mar. 2/257:40 pmIAD - BHD

2 stops12h 30mMultiple Airlines

Deal found 2/19

$1,265

dom. 2/235:20 pmBHD - IAD

1 stop27h 25mKLM

mar. 2/255:35 pmIAD - BHD

1 stop18h 15mKLM

Deal found 2/19

$2,807

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

dom. 4/6

1:15 pm-11:58 pm

3 stops39h 43m

Baltimore/Washington

dom. 4/13

5:50 am-10:20 pm

3 stops35h 30m

$826

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

dom. 4/6

9:00 pm-7:05 pm

3 stops27h 05m

Washington, D.C. Dulles Intl

dom. 4/13

8:45 pm-10:25 pm

3 stops20h 40m

$861

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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).

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 City - Washington, D.C. Dulles Intl. You may also consider Belfast Intl - Washington, D.C. Dulles Intl or Belfast Intl - Baltimore/Washington.
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, August is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. (average of $309). Flying from Northern Ireland to Washington, D.C. in June is currently the most expensive (average of $389). 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

Arlington

Alexandria

Fairfax

Springfield

Rockville

Tysons

Gaithersburg

Silver Spring

Fredericksburg

Linthicum Heights

Laurel

Falls Church

Woodbridge

Easton

Herndon

Bowie

Reston

National Harbor

Oxon Hill

Gettysburg

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$826+ 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 4/6. 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.

Keep the following information in mind while searching for Northern Ireland to Washington, D.C. flight deals. Data was last updated febrero 20, 2025.

Round-trip from

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 febrero 20, 2025.

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 febrero 20, 2025.

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.

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.?

Traveling to a place near Northern Ireland?

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

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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 febrero 20, 2025.