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Cheap flights from Washington to Belfast City Airport from £308

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 23/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — BHD
18 kesä — 25 kesä1
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 13 kesäkuu 2025.

Round-trip from

£497

One-way from

£308

Popular in

August

Cheapest in

March
British Airways
  • British Airways
  • 4/10-14/10
  • 3 total stops
  • 67h 33m total
  • Washington to Belfast
Search Deals
23/8
  • 23/8
  • 2 total stops
  • 17h 35m total
  • Washington to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£123 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£28 potential savings vs. average return price).
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 13 kesäkuu 2025.

la 4/1013:12PDX - BHD
2 stops38h 18mBritish Airways
ti 14/1020:20BHD - PDX
1 stop29h 15mBritish Airways
Deal found 12/6£497
ke 15/1019:25PDX - BHD
1 stop15h 15mMultiple Airlines
la 25/1009:35BHD - PDX
2 stops21h 08mMultiple Airlines
Deal found 11/6£507
ma 4/820:20SEA - BHD
1 stop15h 15mBritish Airways
ke 20/818:15BHD - SEA
1 stop25h 20mBritish Airways
Deal found 12/6£528
ti 28/1013:29SEA - BHD
2 stops17h 06mAmerican Airlines
ti 4/1111:30BHD - SEA
1 stop13h 25mAmerican Airlines
Deal found 13/6£539
la 4/1015:00SEA - BHD
2 stops36h 30mIberia
ti 14/1006:35BHD - SEA
1 stop12h 35mIberia
Deal found 12/6£548
ma 4/817:45SEA - BHD
2 stops15h 45mMultiple Airlines
ke 20/816:05BHD - SEA
1 stop27h 30mMultiple Airlines
Deal found 12/6£566
ma 4/819:35SEA - BHD
2 stops17h 15mAer Lingus
ke 20/807:00BHD - SEA
2 stops18h 50mAer Lingus
Deal found 12/6£587
ke 2/713:15PDX - BHD
1 stop19h 40mKLM
ti 15/717:25BHD - PDX
1 stop25h 55mKLM
Deal found 11/6£1,155

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 13 kesäkuu 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

la 4/10

13:12-11:30

2 stops38h 18m

Belfast City

ti 14/10

20:20-17:35

1 stop29h 15m

£497

PortlandBelfast

PDX - BHD

PDXBHD

Portland

ke 15/10

19:25-18:40

1 stop15h 15m

Belfast City

la 25/10

09:35-22:43

2 stops21h 08m

£507

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

ma 4/8

20:20-19:35

1 stop15h 15m

Belfast City

ke 20/8

18:15-11:35

1 stop25h 20m

£528

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

ti 28/10

13:29-13:35

2 stops17h 06m

Belfast City

ti 4/11

11:30-16:55

1 stop13h 25m

£539

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

la 4/10

15:00-11:30

2 stops36h 30m

Belfast City

ti 14/10

06:35-11:10

1 stop12h 35m

£548

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

ma 4/8

17:45-17:30

2 stops15h 45m

Belfast City

ke 20/8

16:05-11:35

1 stop27h 30m

£566

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

ma 4/8

19:35-20:50

2 stops17h 15m

Belfast City

ke 20/8

07:00-17:50

2 stops18h 50m

£587

PortlandBelfast

PDX - BHD

PDXBHD

Portland

ke 2/7

13:15-16:55

1 stop19h 40m

Belfast City

ti 15/7

17:25-11:20

1 stop25h 55m

£1,155

PortlandBelfast

PDX - BHD

PDXBHD

Portland

la 23/8

10:40-12:15

2 stops17h 35m

£308

PortlandBelfast

PDX - BHD

PDXBHD

Portland

la 23/8

13:15-21:15

1 stop24h 00m

£414

Flights are sorted by cheapest return flights first.

Deals found on 12/6

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 13 kesäkuu 2025.
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
KLM
7.8
Good
1,358 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Aer Lingus
7.1
Good
1,118 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
Iberia
7.0
Good
2,776 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.
British Airways
6.6
Okay
7,011 reviews
KLM
7.8
Good
1,358 reviews
Check prices

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Food

7.2

Overall

7.8

Crew

8.4

Reviews

1 / 20
8.0
Excellent

Allan,Jun 2025

YYZ - AMS

I always enjoy flying KLM. Service is attentive, friendly and professional. The seat, when fully reclined is a little hard; some kind of mattress or topper would be helpful here. The dinner was really not very good …. “Meatless meatballs” tasted quite peculiar. Breakfast which consisted of an egg white omelette in flour tortilla was also rather tasteless.

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?

Book flights to Washington if you plan to visit one of these locations
Newcastle
Bangor
Carrickfergus

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Alternative routes for Washington to Belfast City

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