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£54+ 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
8 févr. — 15 févr.1
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 9 janvier 2026.

Cheapest round-trip flight

£451

Cheapest airline

Alaska Airlines

Good round-trip deal

£72 or less

Good one-way deal

£45 or less
The cheapest round-trip 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 £188).
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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 9 janvier 2026.

mer. 25/306:10SEA - EWR
Nonstop5h 17mAlaska Airlines
mar. 31/307:18EWR - SEA
Nonstop6h 11mAlaska Airlines
Deal found 7/1£154
mar. 28/421:26SEA - EWR
Nonstop5h 33mAlaska Airlines
jeu. 7/507:30EWR - SEA
Nonstop6h 07mAlaska Airlines
Deal found 7/1£155
jeu. 22/107:00SEA - EWR
Nonstop5h 19mUnited Airlines
dim. 25/114:20EWR - SEA
1 stop11h 23mUnited Airlines
Deal found 7/1£158
jeu. 5/214:10SEA - EWR
1 stop7h 35mUnited Airlines
mer. 11/207:45EWR - SEA
Nonstop6h 22mUnited Airlines
Deal found 8/1£158
jeu. 26/210:09SEA - EWR
Nonstop5h 19mAlaska Airlines
mer. 4/316:29EWR - SEA
1 stop10h 11mAlaska Airlines
Deal found 7/1£159
dim. 25/108:10SEA - EWR
1 stop8h 12mUnited Airlines
ven. 30/107:45EWR - SEA
Nonstop6h 22mUnited Airlines
Deal found 7/1£161
mer. 28/123:45SEA - EWR
Nonstop5h 14mUnited Airlines
mar. 3/207:45EWR - SEA
Nonstop6h 22mUnited Airlines
Deal found 8/1£161
jeu. 12/321:40SEA - EWR
1 stop18h 19mAlaska Airlines
mar. 17/307:30EWR - SEA
Nonstop6h 25mAlaska Airlines
Deal found 7/1£162
lun. 27/406:00SEA - EWR
Nonstop5h 27mAlaska Airlines
jeu. 7/507:30EWR - SEA
Nonstop6h 07mAlaska Airlines
Deal found 7/1£163
jeu. 22/120:15SEA - EWR
1 stop17h 07mAlaska Airlines
sam. 31/118:08EWR - SEA
Nonstop6h 20mAlaska Airlines
Deal found 7/1£165
ven. 30/114:10SEA - EWR
1 stop7h 35mUnited Airlines
dim. 1/207:45EWR - SEA
Nonstop6h 22mUnited Airlines
Deal found 6/1£166
mer. 11/220:50SEA - EWR
1 stop16h 40mAlaska Airlines
sam. 14/219:29EWR - SEA
Nonstop6h 25mAlaska Airlines
Deal found 8/1£167

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 9 janvier 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

ven. 6/2

12:57-00:52

1 stop8h 55m

Newark

dim. 8/2

07:45-11:07

Nonstop6h 22m

£155

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

mer. 8/4

10:08-18:29

Nonstop5h 21m

Newark

lun. 13/4

16:55-20:08

Nonstop6h 13m

£155

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

dim. 12/4

21:36-05:58

Nonstop5h 22m

Newark

sam. 18/4

16:55-20:08

Nonstop6h 13m

£155

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

sam. 28/2

23:35-07:44

Nonstop5h 09m

Newark

sam. 2/5

10:15-15:53

1 stop8h 38m

£155

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

mer. 4/2

07:00-19:29

1 stop9h 29m

Newark

mer. 11/2

07:45-11:07

Nonstop6h 22m

£158

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 26/1

08:43-16:55

Nonstop5h 12m

Newark

ven. 30/1

18:08-21:28

Nonstop6h 20m

£161

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

lun. 25/5

21:40-05:59

Nonstop5h 19m

Newark

sam. 30/5

07:19-10:20

Nonstop6h 01m

£163

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

jeu. 26/2

23:35-07:44

Nonstop5h 09m

Newark

lun. 2/3

20:28-23:51

Nonstop6h 23m

£163

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

sam. 18/4

21:36-05:58

Nonstop5h 22m

Newark

jeu. 23/4

18:23-21:34

Nonstop6h 11m

£163

SeattleNewark

SEA - EWR

SEAEWR

Seattle/Tacoma Intl

mar. 28/4

06:00-14:27

Nonstop5h 27m

Newark

dim. 3/5

07:30-10:37

Nonstop6h 07m

£163

Flights are sorted by cheapest return flights first.

Deals found on 7/1

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 2 January 2026.

Booking 83 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 £369). Flying from Seattle in June will prove the most costly (average of £587). 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.

Virgin Atlantic
Virgin Atlantic
From £367
Alaska Airlines
Alaska Airlines
From £82
Icelandair
Icelandair
From £366
British Airways
British Airways
From £352

What are popular destinations to fly to from Seattle?

If you’re flying from Seattle, these routes are more frequently taken by airlines Chicago (443 flights per day), Los Angeles (433 flights per day) and Vancouver (388 flights per day).

London
London
From £284
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £41
Tokyo
Tokyo
From £258
Vancouver Intl
Vancouver Intl
From £40

What is the cheapest place to fly to from Seattle?

The cheapest city to fly to from Seattle is San Francisco, with prices starting at £40. Explore other affordable destinations below.

San Francisco
San Francisco
From £40
Vancouver Intl
Vancouver Intl
From £40
Denver Intl
Denver Intl
From £41
Phoenix Sky Harbor Intl
Phoenix Sky Harbor Intl
From £41

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
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

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
678 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

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
7,659 reviews
Virgin Atlantic
7.5
Good
678 reviews
Check prices

Crew

8.2

Comfort

7.3

Food

6.9

Overall

7.5

Boarding

7.7

Entertainment

7.6

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.
Direct flights from Spokane
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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 9 janvier 2026.

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

    This month, the top selected destinations from Seattle are Bangkok Suvarnabhumi Airport, Mumbai, Boston. 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 £40 to San Francisco (prices may vary depending on the airline and departure time). On average, users have booked flights for £294 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 (£82), Delta flights from Seattle to Denver Intl (£161), and Hawaiian Airlines flights from Seattle to Honolulu (£231).

  • 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 £342
    Seattle/Tacoma Intl to Kahului from £406
    Seattle/Tacoma Intl to Frankfurt am Main Airport from £847
    Seattle/Tacoma Intl to Salt Lake City from £891

  • 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 £147 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 £353 round trip
    Travel from Seattle to Edinburgh from £365 round trip
    Travel from Seattle to Glasgow from £367 round trip
    Travel from Seattle to Reykjavik from £608 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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