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£69+ Cheap flights from Seattle

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/1. 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.
SEA — LHR
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

What to know about flights from Seattle

Discover essential information about flights departing from Seattle, including flight schedules, destinations, airlines operating at the Seattle airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 18 December 2025.

Cheapest one-way flight

£286

Cheapest airline

Alaska Airlines

Most popular destination

London Heathrow (LHR)

Good round-trip deal

£169 or less

Good one-way deal

£43 or less
The cheapest one-way flight from Seattle/Tacoma Intl is currently to London Heathrow.
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On average, Alaska Airlines currently has the cheapest one-way flight from Seattle/Tacoma Intl (avg. price of £177).
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London Heathrow (LHR) is currently the most popular flight destination from Seattle/Tacoma Intl (average return price of £376).
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Price to beat on a round-trip flight from Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Seattle/Tacoma Intl.
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Find flights from Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Seattle
Explore the most affordable flight options available from Seattle. Find the lowest fares based on data from user searches, with prices last updated on 18 December 2025.

Fri 30/114:35SEA - KEF
Nonstop7h 40mIcelandair
Fri 6/217:00KEF - SEA
Nonstop8h 00mIcelandair
Deal found 16/12£352
Thu 15/114:35SEA - GLA
1 stop11h 20mIcelandair
Fri 30/112:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 16/12£354
Thu 8/114:35SEA - EDI
1 stop11h 45mIcelandair
Tue 13/112:20EDI - SEA
1 stop12h 40mIcelandair
Deal found 15/12£366
Sat 24/114:35SEA - GLA
1 stop11h 20mIcelandair
Tue 17/212:35GLA - SEA
1 stop12h 25mIcelandair
Deal found 17/12£367
Fri 30/114:35SEA - MAN
1 stop12h 25mIcelandair
Fri 6/211:55MAN - SEA
1 stop13h 05mIcelandair
Deal found 15/12£367
Wed 15/411:45SEA - KEF
1 stop14h 45mDelta
Tue 21/411:25KEF - SEA
1 stop29h 59mDelta
Deal found 17/12£369
Mon 20/415:40SEA - GLA
1 stop13h 45mIcelandair
Mon 27/414:20GLA - SEA
1 stop14h 20mIcelandair
Deal found 16/12£369
Wed 31/1214:35SEA - GLA
1 stop11h 20mIcelandair
Thu 22/111:15GLA - SEA
1 stop13h 45mIcelandair
Deal found 16/12£370
Fri 20/214:35SEA - KEF
Nonstop7h 40mIcelandair
Fri 27/217:00KEF - SEA
Nonstop8h 00mIcelandair
Deal found 16/12£372
Fri 30/114:35SEA - MAN
2 stops19h 20mMultiple Airlines
Fri 6/206:45MAN - SEA
2 stops18h 15mMultiple Airlines
Deal found 15/12£372
Wed 29/411:45SEA - KEF
1 stop14h 45mDelta
Tue 5/511:25KEF - SEA
1 stop17h 51mDelta
Deal found 17/12£375
Wed 15/420:20SEA - KEF
2 stops28h 30mFinnair
Tue 21/417:15KEF - SEA
2 stops32h 10mFinnair
Deal found 17/12£378

Find flights from Seattle within your budget

 
Find flights departing from Seattle that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 18 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 22/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 2/3

17:00-17:00

Nonstop8h 00m

£372

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Fri 30/1

14:35-17:55

2 stops19h 20m

Manchester

Fri 6/2

06:45-17:00

2 stops18h 15m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Sun 22/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Thu 26/2

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 17/3

15:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Thu 2/4

19:45-20:40

Nonstop7h 55m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Wed 18/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Tue 24/2

17:00-17:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Mon 9/3

15:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Wed 18/3

17:00-18:00

Nonstop8h 00m

£372

SeattleReykjavik

SEA - KEF

SEAKEF

Seattle/Tacoma Intl

Tue 24/2

14:35-06:15

Nonstop7h 40m

Reykjavik Keflavik Intl

Mon 2/3

17:00-17:00

Nonstop8h 00m

£372

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Thu 29/1

14:35-22:00

2 stops23h 25m

Manchester

Thu 5/2

07:40-17:00

2 stops17h 20m

£422

SeattleManchester

SEA - MAN

SEAMAN

Seattle/Tacoma Intl

Mon 12/1

08:10-23:55

2 stops31h 45m

Manchester

Mon 19/1

17:30-19:16

3 stops33h 46m

£428

SeattleGlasgow

SEA - GLA

SEAGLA

Seattle/Tacoma Intl

Thu 26/2

18:50-15:10

1 stop12h 20m

Glasgow Intl

Wed 4/3

11:40-16:55

1 stop13h 15m

£440

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 60 results
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Best time to book a flight from Seattle

Have a flexible travel schedule? Discover the best time to fly from Seattle 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 Seattle

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

When is the best time to book a flight from Seattle?

Use this chart to determine the optimal time to book a return flight from Seattle to Heathrow. Price data was last updated on 12 December 2025.

Booking 65 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Seattle?

Currently, January is the cheapest month in which you can book a flight from Seattle (average of £367). Flying from Seattle in June will prove the most costly (average of £591). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Seattle?

Many airlines operate round-trip flights from Seattle: Virgin Atlantic, British Airways. These airlines fly to the following popular destinations: London.

Alaska Airlines
Alaska Airlines
From £64
Virgin Atlantic
Virgin Atlantic
From £369
Icelandair
Icelandair
From £368
British Airways
British Airways
From £354

What are popular destinations to fly to from Seattle?

If you’re flying from Seattle, these routes are more frequently taken by airlines Vancouver (290 flights per day), Los Angeles (270 flights per day) and San Francisco (196 flights per day).

London
London
From £239
Tokyo
Tokyo
From £260
Vancouver Intl
Vancouver Intl
From £41
New York
New York
From £82

What is the cheapest place to fly to from Seattle?

The cheapest city to fly to from Seattle is Phoenix Sky Harbor Intl, with prices starting at £25. Explore other affordable destinations below.

Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £25
Vancouver Intl
Vancouver Intl
From £41
Las Vegas Harry Reid Intl
Las Vegas Harry Reid Intl
From £47
Boise Air Term. Gowen Fld
Boise Air Term. Gowen Fld
From £58

Airline reviews for flights from Seattle

Get insights into the airlines that provide service from Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Seattle. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Check out reviews from past customers who have flown Virgin Atlantic and British Airways from Seattle to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Crew

8.2

Overall

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
675 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Crew

8.2

Overall

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,583 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Entertainment

7.5

Crew

8.2

Overall

7.5

Boarding

7.7

Food

6.9

Comfort

7.3

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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Direct flights from Washington

Book a direct flight from one of these other cities located in Washington.
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Direct flights from Bellingham
Direct flights from Pullman

Related info for your journey

Access useful and relevant information related to your journey from Seattle. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 18 December 2025.

  • What are the most popular destinations to fly to from Seattle?

    This month, the top selected destinations from Seattle are Mumbai, Boston, Bangkok Suvarnabhumi Airport. Throughout the year, Boston, Bangkok Suvarnabhumi Airport, Mumbai are some of the top choices made by users flying from Seattle.

  • What is the cheapest flight from Seattle to anywhere?

    Users have flown out of Seattle for as low as £25 to Phoenix Sky Harbor Intl Airport (prices may vary depending on the airline and departure time). On average, users have booked flights for £368 to fly from Seattle.

  • What are the cheapest airlines flying from Seattle to anywhere?

    Over the past few days, we've found that Alaska Airlines, Delta, and Hawaiian Airlines have the cheapest prices from Seattle. Alaska Airlines flights from Seattle to Anchorage (£64), Delta flights from Seattle to Denver Intl (£66), and Hawaiian Airlines flights from Seattle to Honolulu (£232).

  • What is the cheapest premium economy flight from Seattle?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from Seattle.
    Seattle/Tacoma Intl to San Francisco from £344
    Seattle/Tacoma Intl to Kahului from £408
    Seattle/Tacoma Intl to Frankfurt am Main Airport from £851
    Seattle/Tacoma Intl to Salt Lake City from £896

  • What is the cheapest first class flight from Seattle?

    If you’re looking for a cheap first-class flight from Seattle, consider Missoula. Prices start at £148 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Seattle?

    At the present moment the cheapest month to fly from Seattle is currently January; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Seattle?

    Check out the cheapest flights from Seattle to embark to:
    Travel from Seattle to London from £368 round trip
    Travel from Seattle to Edinburgh from £398 round trip
    Travel from Seattle to Reykjavik from £611 round trip

  • How does Cheapflights help users find flights from Seattle?

    Cheapflights helps you search for flights from Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Seattle with no change fees?

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle flexibly with Cheapflights today.

  • Can Cheapflights notify me if prices for flights from Seattle become cheaper?

    Not ready to book yet? You can track prices for flights from Seattle on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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How does Cheapflights help users find flights from Seattle?

Cheapflights helps you search for flights from Seattle via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Seattle for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Seattle with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle become cheaper?

Not ready to book yet? You can track prices for flights from Seattle on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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