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Cheap flights from Belfast to Seattle from £586

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
BHD — SEA
2 May — 9 May1
1 adult
Thu 2/5
Thu 9/5

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 27 April 2024.

Round-trip from

£474
From Belfast to Seattle/Tacoma Intl
Search Deals

When is the cheapest time to fly from Belfast to Seattle (BFS - SEA)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Belfast to Seattle as you normally would.

Cheap American Airlines flights from Belfast to Seattle

Explore cheap flight options specifically provided by American Airlines for the route between Belfast and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Peruse some of the lowest-priced American Airlines flights we've found from Belfast to Seattle. Make sure to check back often as deals are often changing.
Wed 25/906:50BHD - SEA
1 stop12h 45mAmerican Airlines
Sun 29/923:50SEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 26/4£586
Wed 25/906:50BHD - SEA
2 stops23h 55mAmerican Airlines
Sun 29/923:50SEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 26/4£590
Wed 25/909:50BHD - SEA
2 stops20h 55mAmerican Airlines
Sun 29/922:54SEA - BHD
2 stops29h 56mAmerican Airlines
Deal found 25/4£593
Wed 25/911:50BHD - SEA
1 stop13h 55mAmerican Airlines
Sun 29/919:40SEA - BHD
1 stop13h 55mAmerican Airlines
Deal found 25/4£615
Sun 26/517:35BHD - SEA
2 stops50h 51mAmerican Airlines
Sun 2/622:55SEA - BHD
2 stops29h 55mAmerican Airlines
Deal found 26/4£660
Sun 26/517:35BHD - SEA
2 stops37h 30mAmerican Airlines
Sun 2/619:40SEA - BHD
1 stop13h 55mAmerican Airlines
Deal found 26/4£686
Fri 24/516:20BHD - SEA
1 stop27h 15mAmerican Airlines
Fri 31/519:40SEA - BHD
1 stop14h 30mAmerican Airlines
Deal found 26/4£747
Sat 15/616:15BHD - SEA
2 stops37h 42mAmerican Airlines
Sat 17/806:36SEA - BHD
2 stops24h 29mAmerican Airlines
Deal found 26/4£847

Cheap Delta flights from Belfast to Seattle

Explore cheap flight options specifically provided by Delta for the route between Belfast and Seattle. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Have a look at some of the cheapest available Delta flights departing from Belfast and landing in Seattle. Deals frequently update to provide users with more options.
Sun 26/517:20BHD - SEA
2 stops29h 59mDelta
Sun 2/618:05SEA - BHD
1 stop14h 45mDelta
Deal found 26/4£693
Fri 24/517:20BHD - SEA
1 stop24h 50mDelta
Fri 31/512:35SEA - BHD
2 stops20h 15mDelta
Deal found 26/4£699
Fri 24/517:20BHD - SEA
2 stops30h 15mDelta
Fri 31/512:35SEA - BHD
2 stops20h 15mDelta
Deal found 26/4£703
Sat 15/617:20BHD - SEA
1 stop25h 00mDelta
Sat 17/811:50SEA - BHD
2 stops21h 00mDelta
Deal found 26/4£831

Cheap Belfast to Seattle flights in April & May 2024

Find cheap flight options from Belfast to Seattle specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 925,685 searches. Prices were last updated on 27 April 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Sun 26/517:20BHD - SEA
1 stop24h 50mMultiple Airlines
Sun 2/613:30SEA - BHD
1 stop19h 20mMultiple Airlines
Deal found 26/4£648
Sun 26/517:35BHD - SEA
2 stops50h 51mAmerican Airlines
Sun 2/622:55SEA - BHD
2 stops29h 55mAmerican Airlines
Deal found 26/4£660
Sun 26/517:35BHD - SEA
2 stops37h 30mAmerican Airlines
Sun 2/619:40SEA - BHD
1 stop13h 55mAmerican Airlines
Deal found 26/4£686
Sun 26/517:20BHD - SEA
2 stops29h 59mDelta
Sun 2/618:05SEA - BHD
1 stop14h 45mDelta
Deal found 26/4£693
Fri 24/517:20BHD - SEA
1 stop24h 50mDelta
Fri 31/512:35SEA - BHD
2 stops20h 15mDelta
Deal found 26/4£699
Fri 24/517:20BHD - SEA
2 stops30h 15mDelta
Fri 31/512:35SEA - BHD
2 stops20h 15mDelta
Deal found 26/4£703
Fri 24/516:20BHD - SEA
1 stop27h 15mAmerican Airlines
Fri 31/519:40SEA - BHD
1 stop14h 30mAmerican Airlines
Deal found 26/4£747
Fri 24/517:20BHD - SEA
1 stop24h 50mMultiple Airlines
Fri 31/513:30SEA - BHD
1 stop19h 20mMultiple Airlines
Deal found 26/4£769
Sun 26/509:50BFS - SEA
2 stops15h 50mMultiple Airlines
Sun 2/615:50SEA - BFS
2 stops23h 35mMultiple Airlines
Deal found 26/4£899

Belfast to Seattle 2024 flight deals

Discover exclusive flight deals for travel between Belfast and Seattle in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
These are some of the best deals we've found on flights to Seattle in 2024 at this time. More deals are always being added, so be sure to check back regularly.
Wed 25/906:50BHD - SEA
1 stop12h 45mAmerican Airlines
Sun 29/923:50SEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 26/4£586
Wed 25/906:50BHD - SEA
2 stops23h 55mAmerican Airlines
Sun 29/923:50SEA - BHD
2 stops25h 05mAmerican Airlines
Deal found 26/4£590
Wed 25/909:50BHD - SEA
2 stops20h 55mAmerican Airlines
Sun 29/922:54SEA - BHD
2 stops29h 56mAmerican Airlines
Deal found 25/4£593
Wed 25/911:50BHD - SEA
1 stop13h 55mAmerican Airlines
Sun 29/919:40SEA - BHD
1 stop13h 55mAmerican Airlines
Deal found 25/4£615
Sun 26/517:20BHD - SEA
1 stop24h 50mMultiple Airlines
Sun 2/613:30SEA - BHD
1 stop19h 20mMultiple Airlines
Deal found 26/4£648
Sun 26/517:35BHD - SEA
2 stops50h 51mAmerican Airlines
Sun 2/622:55SEA - BHD
2 stops29h 55mAmerican Airlines
Deal found 26/4£660
Sun 26/517:35BHD - SEA
2 stops37h 30mAmerican Airlines
Sun 2/619:40SEA - BHD
1 stop13h 55mAmerican Airlines
Deal found 26/4£686
Sun 26/517:20BHD - SEA
2 stops29h 59mDelta
Sun 2/618:05SEA - BHD
1 stop14h 45mDelta
Deal found 26/4£693
Fri 24/517:20BHD - SEA
1 stop24h 50mDelta
Fri 31/512:35SEA - BHD
2 stops20h 15mDelta
Deal found 26/4£699

One-way flights to Seattle from Belfast

Search for one-way flight options from Belfast to Seattle. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
Take a look at some of the one-way flights we've detected from Belfast to Seattle. Users in need of a round-trip flight from Belfast to Seattle instead should update the search form at the top of page.
Tue 3/915:15BHD - SEA
2 stops33h 46mAer Lingus
Deal found 26/4£631
Tue 3/918:15BHD - SEA
1 stop25h 20mAer Lingus
Deal found 26/4£991

Find flights from Belfast to Seattle within your budget

Customise 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 925,685 searches. Data last updated 27 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£586 - £769

Route

Depart

Return

Price

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 25/9

1 stop12h 45m

Seattle/Tacoma Intl

Sun 29/9

2 stops25h 05m

£586

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 25/9

2 stops23h 55m

Seattle/Tacoma Intl

Sun 29/9

2 stops25h 05m

£590

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 25/9

2 stops20h 55m

Seattle/Tacoma Intl

Sun 29/9

2 stops29h 56m

£593

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Wed 25/9

1 stop13h 55m

Seattle/Tacoma Intl

Sun 29/9

1 stop13h 55m

£615

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Sun 26/5

1 stop24h 50m

Seattle/Tacoma Intl

Sun 2/6

1 stop19h 20m

£648

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Sun 26/5

2 stops29h 59m

Seattle/Tacoma Intl

Sun 2/6

1 stop14h 45m

£693

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Fri 24/5

1 stop24h 50m

Seattle/Tacoma Intl

Fri 31/5

2 stops20h 15m

£699

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Fri 24/5

2 stops30h 15m

Seattle/Tacoma Intl

Fri 31/5

2 stops20h 15m

£703

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Fri 24/5

1 stop24h 50m

Seattle/Tacoma Intl

Fri 31/5

1 stop19h 20m

£769

Flights are sorted by cheapest first

Deals found on 26/4

When is the cheapest time to fly from Belfast to Seattle?

Use this chart to determine the cheapest time to fly return from Belfast to Seattle. Price data was last updated on 21 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their Belfast to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Seattle by month

Plan your trip from Belfast to Seattle by taking into account the cheapest months to travel. The average price of a one-way flight from Belfast to Seattle is currently £811 while a return flight costs £655. Price data was last updated on 21 April 2024.

Currently, February is the cheapest month in which you can book a flight from Belfast to Seattle (average of £593). Flying from Belfast to Seattle in July is currently the most expensive (average of £802). 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.

January

£488

February

£474

March

£506

April

£521

May

£546

June

£612

July

£642

August

£610

September

£550

October

£524

November

£481

December

£475

Temperature and rainfall in Seattle by month

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

SEA

Temperature

5 - 19 °C

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 27 April 2024.
Peruse reviews from past customers who have flown with American Airlines and Delta from Belfast to Seattle to help guide your decision. 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.
Delta
8.1
Very Good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Delta
8.1
Very Good
10,966 reviews
Delta
8.1
Very Good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

American Airlines
7.3
Good
14,889 reviews
Delta
8.1
Very Good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

Aer Lingus
7.2
Good
1,349 reviews
Delta
8.1
Very Good
10,966 reviews
Check prices

Food

7.4

Crew

8.6

Overall

8.1

Entertainment

8.0

Boarding

8.2

Comfort

7.9

Reviews

1 / 10

Terrible flight crew that skipped our row for service multiple times.

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?

    Most people fly into Seattle/Tacoma Intl (SEA) if they book a flight to Seattle from Belfast. On average, Seattle/Tacoma Intl has 0 inbound flights from Belfast per day from 1 airline. Seattle/Tacoma Intl is conveniently located just 11.4 mi from Seattle’s city center.

  • Can I find flights from Belfast to Seattle for under £600 on Cheapflights?

    Yes, there are multiple flights from Belfast to Seattle for under £600. The cheapest flight booked recently is on American Airlines for just £586, but on average you can expect to pay £794.

  • What are the cheapest airlines flying from Belfast to Seattle round-trip?

    American Airlines, at £586, was found to be the cheapest airline from Belfast to Seattle. An alternate airline flying to your destination would be Delta.

  • What does BFS to SEA mean?

    Great question - BFS to SEA just means Belfast Intl Airport to Seattle/Tacoma Intl Airport. Now you’ll know what these unique codes when you look for flights! Belfast City Airport (BHD), Glasgow Prestwick Airport (PIK), Londonderry Eglinton Airport (LDY), Isle of Islay Glenegedale Airport (ILY), Campbeltown Machrihanish Airport (CAL) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Belfast to Seattle that include extra baggage allowance?

    The amount of baggage you can bring on your Belfast to Seattle flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Belfast to Seattle with specific airlines?

    Yes, Cheapflights allows you to browse and filter Belfast to Seattle flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • 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 holiday 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.

  • Can I find deals for flights from Belfast to Seattle that allow pets onboard?

    Many airlines flying from Belfast to Seattle offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Belfast to Seattle?

    Yes, you can often find last-minute deals on Belfast to Seattle flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Belfast to Seattle flight deals updated?

    The Belfast to Seattle flight deals you see on this page were last updated on 26/4.

See more FAQs

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

Belfast City to Seattle flights

Top airline flying from Belfast to Seattle

Discover the top airline that operate flights from Belfast to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 925,685 searches. Data last updated 27 April 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£563Average£645FlexibilityNo cancel feeOn-time70%
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Search flights from Belfast to Seattle by cabin class

Find flights from Belfast to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Seattle?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast to Seattle. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Seattle?

Millions of users choose and trust Cheapflights to book the best flight deals from Belfast to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Belfast to Seattle with no change fees?

Certainly. Search results for flights to Seattle from Belfast 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 Belfast to Seattle become cheaper?

Yes, Cheapflights offers price alerts on Belfast to Seattle 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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