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Cheap flights from Belfast to Seattle from £542

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/10. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SEA
24 Sep — 1 Oct1
1 adult

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 980,658 searches. Data last updated 19 September 2024.
Peruse some of the lowest-priced Delta flights we've found from Belfast to Seattle. Make sure to check back often as deals are often changing.
Tue 22/1017:20BHD - SEA
1 stop25h 25mDelta
Mon 28/1007:55SEA - BHD
2 stops25h 55mDelta
Deal found 18/9£542
Wed 25/917:20BHD - SEA
1 stop25h 00mDelta
Mon 30/912:30SEA - BHD
2 stops20h 20mDelta
Deal found 18/9£582
Wed 25/917:20BHD - SEA
2 stops29h 50mDelta
Mon 30/912:30SEA - BHD
2 stops20h 20mDelta
Deal found 18/9£586
Wed 25/917:20BHD - SEA
2 stops29h 50mDelta
Mon 30/911:55SEA - BHD
2 stops20h 55mDelta
Deal found 19/9£1,082

Cheap KLM flights from Belfast to Seattle

Explore cheap flight options specifically provided by KLM 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 980,658 searches. Data last updated 19 September 2024.
Have a look at some of the cheapest available KLM flights departing from Belfast and landing in Seattle. Deals frequently update to provide users with more options.
Tue 22/1017:20BHD - SEA
1 stop25h 25mKLM
Mon 28/1015:15SEA - BHD
1 stop22h 45mKLM
Deal found 18/9£588
Wed 25/917:20BHD - SEA
1 stop25h 00mKLM
Mon 30/913:30SEA - BHD
1 stop19h 20mKLM
Deal found 18/9£619

Cheap Belfast to Seattle flights in September & October 2024

Find cheap flight options from Belfast to Seattle specifically for the months of September and October 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 980,658 searches. Prices were last updated on 19 September 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.
Tue 22/1017:20BHD - SEA
1 stop25h 25mDelta
Mon 28/1007:55SEA - BHD
2 stops25h 55mDelta
Deal found 18/9£542
Tue 22/1016:20BHD - SEA
1 stop27h 15mBritish Airways
Mon 28/1019:50SEA - BHD
1 stop13h 25mBritish Airways
Deal found 19/9£580
Wed 25/917:20BHD - SEA
1 stop25h 00mKLM
Mon 30/912:30SEA - BHD
2 stops20h 20mKLM
Deal found 18/9£582
Tue 22/1009:45BHD - SEA
1 stop16h 00mAmerican Airlines
Mon 28/1019:50SEA - BHD
1 stop15h 45mAmerican Airlines
Deal found 17/9£595
Thu 17/1015:35BHD - SEA
2 stops34h 46mLufthansa
Sun 20/1015:10SEA - BHD
2 stops39h 35mLufthansa
Deal found 18/9£639
Tue 22/1006:15BFS - SEA
3 stops24h 01mMultiple Airlines
Mon 28/1015:35SEA - BFS
2 stops18h 25mMultiple Airlines
Deal found 19/9£686
Tue 22/1017:20BHD - SEA
3 stops38h 50mMultiple Airlines
Mon 28/1015:35SEA - BHD
2 stops22h 15mMultiple Airlines
Deal found 19/9£782
Tue 22/1006:35BHD - SEA
2 stops18h 26mAer Lingus
Sun 27/1000:26SEA - BHD
2 stops35h 09mAer Lingus
Deal found 19/9£1,065

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 980,658 searches. Data last updated 19 September 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.
Tue 22/1017:20BHD - SEA
1 stop25h 25mDelta
Mon 28/1007:55SEA - BHD
2 stops25h 55mDelta
Deal found 18/9£542
Tue 22/1016:20BHD - SEA
1 stop27h 15mBritish Airways
Mon 28/1019:50SEA - BHD
1 stop13h 25mBritish Airways
Deal found 19/9£580
Tue 22/1017:20BHD - SEA
1 stop25h 25mKLM
Mon 28/1015:15SEA - BHD
1 stop22h 45mKLM
Deal found 18/9£588
Tue 22/1019:30BHD - SEA
1 stop24h 05mMultiple Airlines
Mon 28/1019:50SEA - BHD
1 stop13h 25mMultiple Airlines
Deal found 18/9£595
Wed 25/906:50BHD - SEA
1 stop12h 45mAmerican Airlines
Mon 30/919:40SEA - BHD
1 stop11h 55mAmerican Airlines
Deal found 18/9£596
Thu 17/1015:35BHD - SEA
2 stops34h 46mLufthansa
Sun 20/1015:10SEA - BHD
2 stops39h 35mLufthansa
Deal found 18/9£639
Tue 22/1006:15BFS - SEA
3 stops24h 01mMultiple Airlines
Mon 28/1015:35SEA - BFS
2 stops18h 25mMultiple Airlines
Deal found 19/9£686
Tue 22/1006:35BHD - SEA
2 stops18h 26mAer Lingus
Sun 27/1000:26SEA - BHD
2 stops35h 09mAer Lingus
Deal found 19/9£1,065

Belfast to Seattle flights leaving soon

Find last-minute flight options from Belfast to Seattle for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 980,658 searches. Data last updated 19 September 2024.
Have a look at some of the flights available from Belfast to Seattle departing last-minute. It's wise to confirm all flight details are correct before booking.
Wed 25/917:20BHD - SEA
1 stop25h 00mDelta
Mon 30/912:30SEA - BHD
2 stops20h 20mDelta
Deal found 18/9£582
Wed 25/917:20BHD - SEA
2 stops29h 50mDelta
Mon 30/912:30SEA - BHD
2 stops20h 20mDelta
Deal found 18/9£586
Wed 25/906:50BHD - SEA
1 stop12h 45mAmerican Airlines
Mon 30/919:40SEA - BHD
1 stop11h 55mAmerican Airlines
Deal found 18/9£596
Wed 25/917:20BHD - SEA
1 stop25h 00mKLM
Mon 30/913:30SEA - BHD
1 stop19h 20mKLM
Deal found 18/9£619
Wed 25/906:50BHD - SEA
1 stop12h 45mAmerican Airlines
Mon 30/919:40SEA - BHD
1 stop11h 55mAmerican Airlines
Deal found 19/9£889
Wed 25/911:50BHD - SEA
1 stop13h 55mAmerican Airlines
Mon 30/918:45SEA - BHD
2 stops15h 55mAmerican Airlines
Deal found 19/9£1,026
Wed 25/917:20BHD - SEA
2 stops29h 50mDelta
Mon 30/911:55SEA - BHD
2 stops20h 55mDelta
Deal found 19/9£1,082

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 980,658 searches. Data last updated 19 September 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£542 - £1,065

Route

Depart

Return

Price

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 22/10

1 stop25h 25m

Seattle/Tacoma Intl

Mon 28/10

2 stops25h 55m

£542

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 22/10

1 stop27h 15m

Seattle/Tacoma Intl

Mon 28/10

1 stop13h 25m

£580

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 22/10

1 stop25h 25m

Seattle/Tacoma Intl

Mon 28/10

1 stop22h 45m

£588

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 22/10

1 stop24h 05m

Seattle/Tacoma Intl

Mon 28/10

1 stop13h 25m

£595

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Thu 17/10

2 stops34h 46m

Seattle/Tacoma Intl

Sun 20/10

2 stops39h 35m

£639

Belfast IntlSeattle/Tacoma Intl

BFS - SEA

BFSSEA

Belfast Intl

Tue 22/10

3 stops24h 01m

Seattle/Tacoma Intl

Mon 28/10

2 stops18h 25m

£686

Belfast CitySeattle/Tacoma Intl

BHD - SEA

BHDSEA

Belfast City

Tue 22/10

2 stops18h 26m

Seattle/Tacoma Intl

Sun 27/10

2 stops35h 09m

£1,065

Flights are sorted by cheapest first

Deals found on 18/9

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 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.

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.

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

Find hourly flight availability from Belfast to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 19 September 2024.

A simple way to save on the total cost of your ticket is to fly from Belfast to Seattle at midday. If you’re flexible enough to do this you can expect to save up to 46% on your trip compared to booking a flight in the afternoon.

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 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 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 19 September 2024.
Peruse reviews from past customers who have flown with Delta, KLM and American Airlines 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.
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very Good
9,071 reviews
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.8
Good
1,353 reviews
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.2
Good
1,129 reviews
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

6.8
Okay
7,220 reviews
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

6.7
Okay
6,819 reviews
8.0
Very Good
9,071 reviews

Food

7.4

Comfort

7.9

Boarding

8.2

Overall

8.0

Entertainment

8.0

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

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 0 airlines. Seattle/Tacoma Intl is conveniently located just 11.4 mi from 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 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.

See more FAQs

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

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.

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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