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Cheap flights from Washington to Belfast City Airport from £242

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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BHD
6 May — 13 May1
1 adult

Cheap flight deals from Washington to Belfast City

Keep the following information in mind while searching for Washington to Belfast City flight deals. Data was last updated 1 May 2025.

Round-trip from

£489

One-way from

£242

Popular in

June

Cheapest in

October

Average price

£656
British Airways
  • British Airways
  • 23/8-31/8
  • 4 total stops
  • 62h 48m total
  • Washington to Belfast
Search Deals
4/7
  • 4/7
  • 3 total stops
  • 49h 05m total
  • Washington to Belfast
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£117 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£29 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

Find flight deals from Washington to Belfast City

Cheapest flights from Washington to Belfast City
Explore the most affordable flight options available from Washington to Belfast City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 May 2025.

Sat 23/823:59PDX - BHD
2 stops27h 31mBritish Airways
Sun 31/820:05BHD - PDX
2 stops35h 17mBritish Airways
Deal found 30/4£489
Tue 28/1014:35SEA - BHD
1 stop12h 55mAmerican Airlines
Tue 4/1106:35BHD - SEA
1 stop12h 45mAmerican Airlines
Deal found 30/4£513
Tue 19/813:30SEA - BHD
1 stop15h 30mBritish Airways
Fri 29/809:30BHD - SEA
1 stop16h 50mBritish Airways
Deal found 30/4£515
Fri 2/515:45SEA - BHD
2 stops20h 40mMultiple Airlines
Sun 11/507:05BHD - SEA
2 stops21h 35mMultiple Airlines
Deal found 1/5£654
Sun 4/518:07SEA - BHD
1 stop19h 08mDelta
Mon 12/517:25BHD - SEA
1 stop26h 15mDelta
Deal found 30/4£665
Thu 1/514:10SEA - BHD
1 stop18h 45mKLM
Sat 10/517:25BHD - SEA
1 stop30h 32mKLM
Deal found 30/4£739
Sat 31/519:35SEA - BHD
2 stops35h 10mAer Lingus
Fri 6/618:00BHD - SEA
2 stops31h 50mAer Lingus
Deal found 30/4£860
Wed 30/420:20SEA - BHD
1 stop30h 50mIberia
Sat 10/507:05BHD - SEA
2 stops24h 04mIberia
Deal found 30/4£938

Cheapflights Fare Finder

Customise your flight search to find flights from Washington to Belfast City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 1 May 2025.
Use the filters below to find and compare flights from Washington to Belfast City Airport that are best for you.

Fly from

Washington

Fly to

Belfast City

Route

Depart

Return

Price

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

23:59-11:30

2 stops27h 31m

Belfast City

Sun 31/8

20:05-23:22

2 stops35h 17m

£489

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 28/10

14:35-10:30

1 stop12h 55m

Belfast City

Tue 4/11

06:35-11:20

1 stop12h 45m

£513

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Tue 19/8

13:30-13:00

1 stop15h 30m

Belfast City

Fri 29/8

09:30-18:20

1 stop16h 50m

£515

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Mon 25/8

00:34-13:00

2 stops28h 26m

Belfast City

Mon 1/9

09:50-20:02

2 stops18h 12m

£742

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sat 31/5

19:35-14:45

2 stops35h 10m

Belfast City

Fri 6/6

18:00-17:50

2 stops31h 50m

£860

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Sat 14/6

17:35-16:55

1 stop15h 20m

Belfast City

Sat 21/6

17:25-15:55

1 stop30h 30m

£1,109

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 4/7

23:30-08:35

3 stops49h 05m

£242

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

23:59-11:30

2 stops27h 31m

£296

PortlandBelfast

PDX - BHD

PDXBHD

Portland

Sat 23/8

13:20-15:05

2 stops17h 45m

£298

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 4/7

20:20-18:15

1 stop13h 55m

£438

Flights are sorted by cheapest return flights first.

Deals found on 30/4

Showing 1-10 of 11 results
1
2

Best time to book a flight from Washington to Belfast City

Have a flexible travel schedule? Discover the best time to fly to Belfast City from Washington 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 Washington to Belfast City Airport

Rainfall in Belfast City by month

Plan your trip to Belfast City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast City Airport ranges from 50.0 - 90.0 inches per month. October is typically the wettest month, when rainfall can reach 90.0 mm. April is typically the driest time to visit Belfast City Airport when rainfall is around 50.0 mm.

Temperature in Belfast City by month

Plan your trip to Belfast City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast City 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Belfast City. Reviews last updated 1 May 2025.
KLM
7.8
Good
1,334 reviews
Check prices

Food

7.2

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,334 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Food

7.2

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Food

7.2

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Aer Lingus
7.0
Good
1,076 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Food

7.2

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
British Airways
6.6
Okay
6,846 reviews
KLM
7.8
Good
1,334 reviews
Check prices

Food

7.2

Overall

7.8

Entertainment

7.1

Crew

8.4

Comfort

7.7

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from Washington to Belfast City. 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 Washington to Belfast City that include hotel bookings?

    Yes. In addition to deals on Washington to Belfast City flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington to Belfast City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington to Belfast City.

  • Can I find deals for business class flights from Washington to Belfast City?

    Yes. Cheapflights offers flight deals from Washington to Belfast City 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 State of Washington to Belfast City Airport?

    Currently, April is the cheapest month in which you can book a flight from State of Washington to Belfast City Airport (average of £98). Flying from State of Washington to Belfast City Airport in December is currently the most expensive (average of £116). 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

Travelling to a place near Washington?

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Newcastle
Carrickfergus
Bangor

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Certainly. Search results for flights to Belfast City from Washington shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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