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

Currently, January is the cheapest month in which you can book a flight from Northern Ireland to District of Columbia (average of £599). Flying from Northern Ireland to District of Columbia in July is currently the most expensive (average of £947). 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 District of Columbia 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 District of Columbia when rainfall is around 66.0 mm.

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 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).

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.

£406+ Flights from Northern Ireland to District of Columbia

Cheap flight deals from Northern Ireland to District of Columbia

Round-trip from	£492
One-way from	£406

American Airlines
20/11-24/11
2 total stops
25h 35m total
Northern Ireland to District of Columbia

Search Deals

14/10
3 total stops
32h 49m total
Northern Ireland to District of Columbia

Search Deals

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 18 syyskuu 2025.

to 20/1110:40BHD - IAD

1 stop14h 15mAmerican Airlines

ma 24/1118:20IAD - BHD

1 stop11h 20mAmerican Airlines

Deal found 15/9£492

to 4/1206:35BHD - DCA

2 stops16h 08mAmerican Airlines

ma 8/1217:24DCA - BHD

2 stops15h 51mAmerican Airlines

Deal found 14/9£496

to 9/1006:30BHD - DCA

2 stops21h 29mDelta

to 16/1019:55DCA - BHD

2 stops16h 00mDelta

Deal found 15/9£500

pe 10/1006:30BHD - DCA

2 stops20h 37mVirgin Atlantic

su 12/1016:50DCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 15/9£565

to 16/1009:25BFS - IAD

3 stops40h 25mMultiple Airlines

to 23/1022:20IAD - BFS

3 stops20h 39mMultiple Airlines

Deal found 18/9£589

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 stopovers in mind to ensure you get the best travel experience. Data last updated 18 syyskuu 2025.

to 20/1110:40BHD - IAD

1 stop14h 15mAmerican Airlines

ma 24/1118:20IAD - BHD

1 stop11h 20mAmerican Airlines

Deal found 15/9£492

to 9/1006:30BHD - DCA

2 stops21h 29mDelta

to 16/1019:55DCA - BHD

2 stops16h 00mDelta

Deal found 15/9£500

pe 10/1006:30BHD - DCA

2 stops20h 37mVirgin Atlantic

su 12/1016:50DCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 15/9£565

to 16/1009:25BFS - IAD

3 stops40h 25mMultiple Airlines

to 23/1022:20IAD - BFS

3 stops20h 39mMultiple Airlines

Deal found 18/9£589

to 4/1206:35BHD - DCA

2 stops16h 08mAmerican Airlines

ma 8/1217:24DCA - BHD

2 stops15h 51mAmerican Airlines

Deal found 14/9£496

Last-minute flights from Northern Ireland to District of Columbia
Discover last-minute flight deals from Northern Ireland to District of Columbia. Data last updated 18 syyskuu 2025 and is based on user searches.

to 9/1006:30BHD - DCA

2 stops21h 29mDelta

to 16/1019:55DCA - BHD

2 stops16h 00mDelta

Deal found 15/9£500

pe 10/1006:30BHD - DCA

2 stops20h 37mVirgin Atlantic

su 12/1016:50DCA - BHD

2 stops47h 25mVirgin Atlantic

Deal found 15/9£565

to 16/1006:30BHD - IAD

1 stop14h 05mDelta

to 23/1013:00IAD - BHD

2 stops22h 55mDelta

Deal found 18/9£569

to 16/1009:25BFS - IAD

3 stops40h 25mMultiple Airlines

to 23/1022:20IAD - BFS

3 stops20h 39mMultiple Airlines

Deal found 18/9£589

to 16/1018:00BHD - IAD

3 stops30h 59mMultiple Airlines

to 23/1022:05IAD - BHD

3 stops34h 25mMultiple Airlines

Deal found 18/9£928

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 18 syyskuu 2025.

ti 14/1008:15BFS - DCA

3 stops32h 49mMultiple Airlines

Deal found 14/9£406

ti 14/1013:40BHD - DCA

2 stops14h 17mMultiple Airlines

Deal found 14/9£616

su 2/1105:55BHD - IAD

2 stops13h 40mMultiple Airlines

Deal found 17/9£697

su 2/1112:10BHD - DCA

2 stops14h 20mBritish Airways

Deal found 17/9£1,205

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

to 20/11

10:40-19:55

1 stop14h 15m

Washington, D.C. Dulles Intl

ma 24/11

18:20-10:40

1 stop11h 20m

£492

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

to 4/12

06:35-17:43

2 stops16h 08m

Washington, D.C. Reagan-National

ma 8/12

17:24-14:15

2 stops15h 51m

£496

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

to 9/10

06:30-22:59

2 stops21h 29m

Washington, D.C. Reagan-National

to 16/10

19:55-16:55

2 stops16h 00m

£500

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

pe 10/10

06:30-22:07

2 stops20h 37m

Washington, D.C. Reagan-National

su 12/10

16:50-21:15

2 stops47h 25m

£565

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

to 16/10

09:25-20:50

3 stops40h 25m

Washington, D.C. Dulles Intl

to 23/10

22:20-23:59

3 stops20h 39m

£589

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

ti 14/10

08:15-12:04

3 stops32h 49m

£406

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

ti 14/10

13:40-22:57

2 stops14h 17m

£616

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

su 2/11

05:55-15:35

2 stops13h 40m

£697

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

su 2/11

12:10-21:30

2 stops14h 20m

£1,205

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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 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 District of Columbia

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Northern Ireland to District of Columbia as you normally would.

Related info for your journey

How long is the flight from Northern Ireland to District of Columbia?
Departing from Northern Ireland to District of Columbia will take you 14h 15m. The distance from Northern Ireland to District of Columbia is about 3390 mi. Both multi-stop and direct flights can be found to your destination and back.
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 holiday 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, January is the cheapest month in which you can book a flight from Northern Ireland to District of Columbia (average of £599). Flying from Northern Ireland to District of Columbia in July is currently the most expensive (average of £947). 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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How does Cheapflights help users find flights from Northern Ireland to District of Columbia?

Cheapflights makes it easy to find Northern Ireland to District of Columbia flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to District of Columbia?

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 District of Columbia.

Can Cheapflights find flights from Northern Ireland to District of Columbia with no change fees?

Certainly. Search results for flights to District of Columbia from Northern Ireland shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Northern Ireland to District of Columbia become cheaper?

Yes, Cheapflights offers price alerts on Northern Ireland to District of Columbia flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Northern Ireland to District of Columbia from £406

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 14/10. Fares are subject to change and may not be available on all flights or dates of travel.

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 18 syyskuu 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 18 syyskuu 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 18 syyskuu 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

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

Find hourly flight availability from Northern Ireland to District of Columbia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 syyskuu 2025.

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.

How long is the flight from Northern Ireland to District of Columbia?

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.

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 District of Columbia?

Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to District of Columbia?

Can Cheapflights find flights from Northern Ireland to District of Columbia with no change fees?

Can Cheapflights notify me if prices for flights from Northern Ireland to District of Columbia become cheaper?

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 18 syyskuu 2025.