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

Currently, February is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. Reagan-National Airport (average of £625). Flying from Northern Ireland to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £856). 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.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport 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. Reagan-National Airport when rainfall is around 66.0 mm.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, 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).

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

When flying from Northern Ireland to Washington, D.C. Reagan-National Airport, 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 Reagan-National that include hotel bookings?

Yes. In addition to deals on Northern Ireland to Reagan-National flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Northern Ireland to Reagan-National?

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

Can I find deals for business class flights from Northern Ireland to Reagan-National?

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

£540+ Flights from Northern Ireland to Washington, D.C. Reagan-National Airport

Cheap flight deals from Northern Ireland to Reagan-National

Round-trip from	£540

American Airlines
10/11-18/11
4 total stops
29h 56m total
Northern Ireland to Washington, D.C.

Search Deals

Find flight deals from Northern Ireland to Reagan-National

Cheapest flights from Northern Ireland to Reagan-National
Explore the most affordable flight options available from Northern Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Mon 10/1109:15BHD - DCA

2 stops14h 36mAmerican Airlines

Tue 18/1118:30DCA - BHD

2 stops15h 20mAmerican Airlines

Deal found 22/8£540

Thu 4/1209:05BHD - DCA

2 stops14h 07mAmerican Airlines

Mon 8/1218:21DCA - BHD

2 stops16h 44mAmerican Airlines

Deal found 21/8£571

Thu 13/1106:30BHD - DCA

2 stops15h 02mDelta

Thu 20/1117:00DCA - BHD

2 stops18h 50mDelta

Deal found 22/8£584

Thu 13/1106:30BHD - DCA

2 stops15h 02mKLM

Wed 19/1119:30DCA - BHD

2 stops16h 20mKLM

Deal found 22/8£587

Fri 14/1106:30BHD - DCA

2 stops15h 57mDelta

Fri 21/1117:00DCA - BHD

2 stops18h 50mDelta

Deal found 22/8£614

Fri 14/1106:30BHD - DCA

2 stops15h 02mKLM

Thu 20/1119:30DCA - BHD

2 stops16h 20mKLM

Deal found 22/8£1,230

Wed 12/1106:30BHD - DCA

2 stops15h 02mKLM

Fri 21/1119:30DCA - BHD

2 stops16h 20mKLM

Deal found 22/8£1,231

Thu 13/1106:30BHD - DCA

2 stops15h 02mKLM

Fri 21/1119:30DCA - BHD

2 stops16h 20mKLM

Deal found 22/8£1,261

Best flights from Northern Ireland to Reagan-National
Discover carefully curated flight deals from Northern Ireland to Reagan-National that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 22 August 2025.

Mon 10/1111:30BHD - DCA

2 stops14h 59mAmerican Airlines

Thu 20/1114:45DCA - BHD

2 stops14h 35mAmerican Airlines

Deal found 22/8£540

Mon 10/1109:15BHD - DCA

2 stops14h 36mAmerican Airlines

Tue 18/1118:30DCA - BHD

2 stops15h 20mAmerican Airlines

Deal found 22/8£540

Tue 11/1106:35BHD - DCA

2 stops14h 36mAmerican Airlines

Tue 18/1117:42DCA - BHD

2 stops16h 08mAmerican Airlines

Deal found 22/8£540

Wed 12/1112:25BHD - DCA

2 stops14h 04mAmerican Airlines

Tue 18/1118:30DCA - BHD

2 stops15h 20mAmerican Airlines

Deal found 22/8£540

Tue 11/1106:35BHD - DCA

2 stops14h 36mAmerican Airlines

Mon 17/1114:00DCA - BHD

2 stops15h 40mAmerican Airlines

Deal found 22/8£540

Tue 11/1108:45BHD - DCA

2 stops15h 06mAmerican Airlines

Wed 19/1117:25DCA - BHD

2 stops15h 50mAmerican Airlines

Deal found 22/8£540

Wed 12/1109:15BHD - DCA

2 stops14h 36mAmerican Airlines

Wed 19/1117:25DCA - BHD

2 stops15h 50mAmerican Airlines

Deal found 22/8£540

Wed 12/1112:25BHD - DCA

2 stops14h 04mAmerican Airlines

Mon 17/1115:16DCA - BHD

2 stops14h 24mAmerican Airlines

Deal found 22/8£540

Mon 10/1111:30BHD - DCA

2 stops14h 59mAmerican Airlines

Wed 19/1117:45DCA - BHD

2 stops15h 30mAmerican Airlines

Deal found 22/8£540

Wed 12/1112:25BHD - DCA

2 stops14h 04mAmerican Airlines

Thu 20/1112:25DCA - BHD

2 stops16h 55mAmerican Airlines

Deal found 22/8£540

Mon 10/1109:15BHD - DCA

2 stops14h 36mAmerican Airlines

Mon 17/1115:16DCA - BHD

2 stops14h 24mAmerican Airlines

Deal found 22/8£540

Tue 11/1106:35BHD - DCA

2 stops14h 36mAmerican Airlines

Thu 20/1114:45DCA - BHD

2 stops14h 35mAmerican Airlines

Deal found 22/8£540

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 10/11

11:30-21:29

2 stops14h 59m

Washington, D.C. Reagan-National

Thu 20/11

14:45-10:20

2 stops14h 35m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 10/11

09:15-18:51

2 stops14h 36m

Washington, D.C. Reagan-National

Tue 18/11

18:30-14:50

2 stops15h 20m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 11/11

06:35-16:11

2 stops14h 36m

Washington, D.C. Reagan-National

Tue 18/11

17:42-14:50

2 stops16h 08m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 12/11

12:25-21:29

2 stops14h 04m

Washington, D.C. Reagan-National

Tue 18/11

18:30-14:50

2 stops15h 20m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 11/11

06:35-16:11

2 stops14h 36m

Washington, D.C. Reagan-National

Mon 17/11

14:00-10:40

2 stops15h 40m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Tue 11/11

08:45-18:51

2 stops15h 06m

Washington, D.C. Reagan-National

Wed 19/11

17:25-14:15

2 stops15h 50m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 12/11

09:15-18:51

2 stops14h 36m

Washington, D.C. Reagan-National

Wed 19/11

17:25-14:15

2 stops15h 50m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 12/11

12:25-21:29

2 stops14h 04m

Washington, D.C. Reagan-National

Mon 17/11

15:16-10:40

2 stops14h 24m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 10/11

11:30-21:29

2 stops14h 59m

Washington, D.C. Reagan-National

Wed 19/11

17:45-14:15

2 stops15h 30m

£540

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Wed 12/11

12:25-21:29

2 stops14h 04m

Washington, D.C. Reagan-National

Thu 20/11

12:25-10:20

2 stops16h 55m

£540

Flights are sorted by cheapest return flights first.

Deals found on 22/8

Showing 1-10 of 12 results

Best time to book a flight from Northern Ireland to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National 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.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Washington, D.C. Reagan-National Airport

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from Northern Ireland to Washington, D.C. Reagan-National Airport?
Airlines like American Airlines fly from Northern Ireland to Washington, D.C. Reagan-National Airport in about 14h 59m. The time it takes to get you to your destination can typically vary by up to . The distance between Northern Ireland and Washington, D.C. Reagan-National Airport is about 3378 mi.
Can I find deals for flights from Northern Ireland to Reagan-National that include hotel bookings?
Yes. In addition to deals on Northern Ireland to Reagan-National flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to Reagan-National.
Can I find deals for business class flights from Northern Ireland to Reagan-National?
Yes. Cheapflights offers flight deals from Northern Ireland to Reagan-National 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. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from Northern Ireland to Washington, D.C. Reagan-National Airport (average of £625). Flying from Northern Ireland to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £856). 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.

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Northern Ireland to Reagan-National. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Reagan-National?

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 Reagan-National.

Can Cheapflights find flights from Northern Ireland to Reagan-National with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Northern Ireland to Reagan-National, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Northern Ireland to Reagan-National become cheaper?

Of course! You can now track prices for flights from Northern Ireland to Reagan-National and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Northern Ireland to Washington, D.C. Reagan-National Airport from £540

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Northern Ireland to Reagan-National

Keep the following information in mind while searching for Northern Ireland to Reagan-National flight deals. Data was last updated 22 August 2025.

Round-trip from

Find flight deals from Northern Ireland to Reagan-National

Cheapest flights from Northern Ireland to Reagan-NationalExplore the most affordable flight options available from Northern Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Explore the most affordable flight options available from Northern Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Northern Ireland to Washington, D.C. Reagan-National Airport that are best for you.

Best time to book a flight from Northern Ireland to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Northern Ireland with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Northern Ireland to Washington, D.C. Reagan-National Airport

Related info for your journey

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

How long is the flight from Northern Ireland to Washington, D.C. Reagan-National Airport?

Can I find deals for flights from Northern Ireland to Reagan-National that include hotel bookings?

How can I find direct flights from Northern Ireland to Reagan-National?

Can I find deals for business class flights from Northern Ireland to Reagan-National?

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

Travelling to a place near Washington, D.C. Reagan-National Airport?

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Alternative routes for Northern Ireland to Reagan-National

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

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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 Reagan-National?

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to Reagan-National?

Can Cheapflights find flights from Northern Ireland to Reagan-National with no change fees?

Can Cheapflights notify me if prices for flights from Northern Ireland to Reagan-National become cheaper?

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Cheapest flights from Northern Ireland to Reagan-National
Explore the most affordable flight options available from Northern Ireland to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 August 2025.