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 £934). 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 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.

£690+ Flights from Northern Ireland to Washington, D.C. Reagan-National Airport

Cheap flight deals from Northern Ireland to Reagan-National

Round-trip from	£690

8/6-15/6
5 total stops
60h 08m 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 24 April 2025.

Sun 8/622:40BFS - DCA

2 stops26h 03mMultiple Airlines

Sun 15/606:00DCA - BFS

3 stops34h 05mMultiple Airlines

Deal found 24/4£690

Tue 11/1106:30BHD - DCA

2 stops17h 50mDelta

Fri 14/1117:00DCA - BHD

2 stops18h 50mDelta

Deal found 24/4£841

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.

BFS - DCA

BFSDCA

Belfast Intl

Sun 8/6

22:40-19:43

2 stops26h 03m

Washington, D.C. Reagan-National

Sun 15/6

06:00-21:05

3 stops34h 05m

£690

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 30/6

19:30-23:07

2 stops32h 37m

£1,275

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Mon 30/6

06:40-23:07

2 stops21h 27m

£1,296

Flights are sorted by cheapest return flights first.

Deals found on 24/4

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

Rainfall in Reagan-National by month

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.

Temperature in Reagan-National by month

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).

Reviews of airlines servicing Reagan-National

Finnair

7.6

Good

1,272 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2023

SEA - HEL

Flight attendants were amazing. You aren’t lacking for anything when you fly business class.

Finnair

7.6

Good

1,272 reviews

Finnair

7.6

Good

1,272 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2023

SEA - HEL

Flight attendants were amazing. You aren’t lacking for anything when you fly business class.

Iberia

7.0

Good

2,686 reviews

Finnair

7.6

Good

1,272 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sept 2023

SEA - HEL

Flight attendants were amazing. You aren’t lacking for anything when you fly business class.

Related info for your journey

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 £934). 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

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Complete your trip

Washington, D.C. Reagan-National Airport car hire

Washington, D.C. car hire

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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.

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Cheap flights from Northern Ireland to Washington, D.C. Reagan-National Airport from £690

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. 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 24 April 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 24 April 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 24 April 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

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

Reviews of airlines servicing Reagan-National

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.

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 Northern Ireland?

Browse thousands of different options on Cheapflights for your next trip

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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.

Fly with Cheapflights

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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Book with Flexibility

Travel Smart

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 24 April 2025.