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$648+ Cheap flights from Belfast to Seattle (SEA)

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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
nov. 25 — dic. 21
lun. 11/25
lun. 12/2
1 adult, Economy
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Cheap flight deals from Belfast to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated noviembre 20, 2024.

Find flight deals from Belfast to Seattle

Cheapest flights from Belfast to Seattle
Explore the most affordable flight options available from Belfast to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 20, 2024.

This Delta deal was found by Cheapflights users on 11/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/26:30 amBHD - SEA
2 stops20h 30mDelta
lun. 12/92:13 pmSEA - BHD
1 stop18h 37mDelta
Deal found 11/18$917
This KLM deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/25:20 pmBHD - SEA
1 stop26h 32mKLM
lun. 12/912:34 pmSEA - BHD
2 stops20h 16mKLM
Deal found 11/19$992
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/27:30 pmBHD - SEA
1 stop23h 50mMultiple Airlines
lun. 12/96:50 pmSEA - BHD
1 stop17h 25mMultiple Airlines
Deal found 11/19$996
This Voliamo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Voliamo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/236:50 pmBHD - SEA
2 stops31h 25mAer Lingus
sáb. 11/306:50 pmSEA - BHD
1 stop16h 50mAer Lingus
Deal found 11/19$1,086
This British Airways deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/236:30 amBHD - SEA
2 stops21h 05mBritish Airways
sáb. 11/306:50 pmSEA - BHD
1 stop16h 50mBritish Airways
Deal found 11/19$1,240
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/239:10 amBHD - SEA
2 stops21h 50mAmerican Airlines
sáb. 11/301:45 pmSEA - BHD
1 stop22h 40mAmerican Airlines
Deal found 11/19$1,254
This Mytrip deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/231:50 pmBFS - SEA
2 stops35h 15mMultiple Airlines
sáb. 11/305:45 amSEA - BFS
3 stops30h 10mMultiple Airlines
Deal found 11/19$1,801

Find flights from Belfast to Seattle within your budget

Customize your flight search to find flights from Belfast to Seattle 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 2,629,791 searches. Data last updated noviembre 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

jue. 5/8

6:30 am-4:05 pm

1 stop17h 35m

Seattle/Tacoma Intl

jue. 5/29

9:40 am-4:50 pm

2 stops23h 10m

$819

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

vie. 5/9

6:35 am-11:35 am

1 stop13h 00m

Seattle/Tacoma Intl

vie. 5/30

7:40 pm-6:10 pm

1 stop14h 30m

$931

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

vie. 5/9

6:35 am-11:35 am

1 stop13h 00m

Seattle/Tacoma Intl

vie. 5/30

7:40 pm-6:10 pm

1 stop14h 30m

$945

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 12/2

5:20 pm-11:52 am

1 stop26h 32m

Seattle/Tacoma Intl

lun. 12/9

12:34 pm-4:50 pm

2 stops20h 16m

$992

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

lun. 12/2

7:30 pm-11:20 am

1 stop23h 50m

Seattle/Tacoma Intl

lun. 12/9

6:50 pm-8:15 pm

1 stop17h 25m

$996

BelfastSeattle

BHD - SEA

BHDSEA

Belfast City

sáb. 3/22

3:05 pm-7:15 pm

2 stops35h 10m

$648

BelfastSeattle

BFS - SEA

BFSSEA

Belfast Intl

sáb. 3/22

2:10 pm-6:00 pm

2 stops34h 50m

$709

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Best time to book a flight from Belfast to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Belfast with our price prediction graph.
Estimated round-trip 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.

Travel insights for flights from Belfast to Seattle

Get recent, data-driven insights about flights from Belfast to Seattle including ideal travel times, pricing trends, and more.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated noviembre 20, 2024.
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus
7.1
Good
1,089 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Iberia
7.0
Good
2,662 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

British Airways
6.7
Okay
6,837 reviews
Delta
8.0
Very good
8,756 reviews

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Belfast to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Belfast?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Belfast to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Belfast; the airport handles an average of 0 inbound flights from Belfast per day. You should also have plenty of airline options to choose from since 0 airlines have flights to the Seattle airport from Belfast. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • Can I find deals for flights from Belfast to Seattle that include hotel bookings?

    Yes. In addition to deals on Belfast to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Belfast to Seattle 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 Seattle?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Seattle (average of $238). Flying from Belfast to Seattle in July is currently the most expensive (average of $411). 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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Alternative routes for Belfast to Seattle

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