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

Currently, January is the cheapest month in which you can book a flight from Belfast to District of Columbia (average of £599). Flying from Belfast 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).

What are the most popular routes from Belfast to District of Columbia?

The most popular route from Belfast to District of Columbia is Belfast Intl - Washington, D.C. Reagan-National. You may also consider Belfast City - Washington, D.C. Reagan-National or Belfast Intl - Washington, D.C. Dulles Intl.

Can I find deals for flights from Belfast to District of Columbia that include hotel bookings?

Yes. In addition to deals on Belfast to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Belfast 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 Belfast to District of Columbia.

Can I find deals for business class flights from Belfast to District of Columbia?

Yes. Cheapflights offers flight deals from Belfast 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.

£304+ Flights from Belfast to District of Columbia

Cheap flight deals from Belfast to District of Columbia

Round-trip from	£557
One-way from	£304

American Airlines
20/11-24/11
3 total stops
35h 31m total
Belfast to District of Columbia

Search Deals

27/8
2 total stops
26h 40m total
Belfast to District of Columbia

Search Deals

Find flight deals from Belfast to District of Columbia

Cheapest flights from Belfast to District of Columbia
Explore the most affordable flight options available from Belfast to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Thu 20/1109:00BHD - IAD

1 stop15h 45mAmerican Airlines

Mon 24/1117:49IAD - BHD

2 stops19h 46mAmerican Airlines

Deal found 12/7£557

Thu 13/1109:05BHD - DCA

2 stops14h 15mAmerican Airlines

Mon 17/1117:58DCA - BHD

2 stops15h 17mAmerican Airlines

Deal found 14/7£560

Best flights from Belfast to District of Columbia
Discover carefully curated flight deals from Belfast to District of Columbia that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 15 July 2025.

Thu 20/1109:00BHD - IAD

1 stop15h 45mAmerican Airlines

Mon 24/1117:49IAD - BHD

2 stops19h 46mAmerican Airlines

Deal found 12/7£557

Thu 13/1109:05BHD - DCA

2 stops14h 15mAmerican Airlines

Mon 17/1117:58DCA - BHD

2 stops15h 17mAmerican Airlines

Deal found 14/7£560

One-way flights from Belfast to District of Columbia
Search for one-way flight options from Belfast to District of Columbia. Find affordable one-way fares based on user searches. Data last updated 15 July 2025.

Wed 27/817:20BFS - IAD

2 stops26h 40mMultiple Airlines

Deal found 13/7£304

Wed 27/818:00BHD - IAD

3 stops26h 00mMultiple Airlines

Deal found 13/7£358

Fri 21/1106:30BFS - DCA

2 stops21h 05mMultiple Airlines

Deal found 13/7£438

Fri 21/1107:20BHD - DCA

2 stops18h 20mMultiple Airlines

Deal found 13/7£448

Wed 27/809:50BHD - IAD

2 stops14h 40mAer Lingus

Deal found 13/7£512

Fri 21/1119:35BHD - IAD

1 stop25h 00mBritish Airways

Deal found 13/7£575

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast 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

Thu 20/11

09:00-19:45

1 stop15h 45m

Washington, D.C. Dulles Intl

Mon 24/11

17:49-18:35

2 stops19h 46m

£557

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Thu 13/11

09:05-18:20

2 stops14h 15m

Washington, D.C. Reagan-National

Mon 17/11

17:58-14:15

2 stops15h 17m

£560

BelfastWashington, D.C.

BFS - IAD

BFSIAD

Belfast Intl

Wed 27/8

17:20-15:00

2 stops26h 40m

£304

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 27/8

18:00-15:00

3 stops26h 00m

£358

BelfastWashington, D.C.

BFS - DCA

BFSDCA

Belfast Intl

Fri 21/11

06:30-22:35

2 stops21h 05m

£438

BelfastWashington, D.C.

BHD - DCA

BHDDCA

Belfast City

Fri 21/11

07:20-21:56

3 stops19h 36m

£448

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Wed 27/8

09:50-19:30

2 stops14h 40m

£512

BelfastWashington, D.C.

BHD - IAD

BHDIAD

Belfast City

Fri 21/11

19:35-15:35

1 stop25h 00m

£575

Flights are sorted by cheapest return flights first.

Deals found on 13/7

Best time to book a flight from Belfast to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Belfast 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 Belfast to District of Columbia

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

When flying from Belfast to District of Columbia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing District of Columbia

See what other customers who have flown with American Airlines, Aer Lingus, andBritish Airways from Belfast to District of Columbia have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

American Airlines

7.2

Good

10,000 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

2 hour delay. Discovered an engine problem late, we boarded the plane and they asked us to come off. To add insult to injury nothing was given to passengers to make amends. No free drink. No extra food or snacks. No free WiFi. Gimme a break

American Airlines

7.2

Good

10,000 reviews

American Airlines

7.2

Good

10,000 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Aer Lingus

7.1

Good

1,165 reviews

American Airlines

7.2

Good

10,000 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

British Airways

6.6

Okay

7,134 reviews

American Airlines

7.2

Good

10,000 reviews

Check prices

Reviews

1 / 20

2.0

Mediocre

Andrew,May 2025

LAX - MIA

Related info for your journey

What are the most popular routes from Belfast to District of Columbia?
The most popular route from Belfast to District of Columbia is Belfast Intl - Washington, D.C. Reagan-National. You may also consider Belfast City - Washington, D.C. Reagan-National or Belfast Intl - Washington, D.C. Dulles Intl.
Can I find deals for flights from Belfast to District of Columbia that include hotel bookings?
Yes. In addition to deals on Belfast to District of Columbia flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Belfast 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 Belfast to District of Columbia.
Can I find deals for business class flights from Belfast to District of Columbia?
Yes. Cheapflights offers flight deals from Belfast 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 Belfast to District of Columbia?
Currently, January is the cheapest month in which you can book a flight from Belfast to District of Columbia (average of £599). Flying from Belfast 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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Direct flights to United States

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How does Cheapflights help users find flights from Belfast to District of Columbia?

Cheapflights makes it easy to find Belfast 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 Belfast to District of Columbia?

Cheapflights helps you find that perfect flight to District of Columbia from Belfast by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Yes, we can. To see specific flights from Belfast to District of Columbia with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights offers price alerts on Belfast 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 Belfast to District of Columbia from £304

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 27/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to District of Columbia

Keep the following information in mind while searching for Belfast to District of Columbia flight deals. Data was last updated 15 July 2025.

Round-trip from

One-way from

Find flight deals from Belfast to District of Columbia

Cheapest flights from Belfast to District of ColumbiaExplore the most affordable flight options available from Belfast to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Explore the most affordable flight options available from Belfast to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to District of Columbia that are best for you.

Best time to book a flight from Belfast to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia from Belfast with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Belfast to District of Columbia

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

Find hourly flight availability from Belfast 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 15 July 2025.

Reviews of airlines servicing District of Columbia

Related info for your journey

Find useful and relevant information for your journey from Belfast 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.

What are the most popular routes from Belfast to District of Columbia?

Can I find deals for flights from Belfast to District of Columbia that include hotel bookings?

How can I find direct flights from Belfast to District of Columbia?

Can I find deals for business class flights from Belfast to District of Columbia?

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Belfast to District of Columbia
Explore the most affordable flight options available from Belfast to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 July 2025.