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

The best time to book flights to Seattle is 90 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What airport do you fly into for flights to Seattle?

For a flight to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Booking flights from London to Seattle/Tacoma Intl should be relatively easy as there are 5 daily flights from 14 different airlines.

What is the cheapest month to fly to Seattle?

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

Can I find cheaper flights to Seattle if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Seattle on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Seattle?

Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Seattle.

What is the cheapest airport to fly to in Seattle?

Seattle/Tacoma Intl is currently the cheapest airport to fly to in Seattle. One-way flights to Seattle/Tacoma Intl typically cost £22, while return flights cost around £105.

How much is a return flight to Seattle?

A return flight to Seattle will typically cost around £799, however they can be found for as little as £105.

Where does the fastest flight to Seattle depart from?

For those looking to save time traveling to Seattle, London offers the quickest one-way flight (9 hours 45 minutes).

Does Seattle/Tacoma Intl have car hire?

Yes. Those touching down at Seattle/Tacoma Intl can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Seattle/Tacoma Intl?

Yes. Seattle/Tacoma Intl has hotels nearby for those requiring accommodations. Seatac Inn is the closest property to Seattle/Tacoma Intl (0.0 mi away from Seattle/Tacoma Intl).

When is the cheapest time to fly to Seattle?

Users looking for the lowest fares to Seattle should consider flying on Wednesday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at midday, when prices are usually at their highest.

What are the most popular airlines that fly to Seattle?

The most popular airlines flying from London to Seattle are Virgin Atlantic, British Airways and Icelandair.

How long is the flight to Seattle?

On average, a flight from London to Seattle takes 13 hours 50 minutes. Flights to Seattle from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

What are the cheapest airlines that fly to Seattle?

The cheapest airlines flying from London to Seattle are Icelandair, Air France and Finnair.

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.

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).

Cheap Flights to Seattle from £420

Flights to Seattle in 2025

Return from	£450
One-way from	£420
Popular in	July
Cheapest in	January
Average price	£549
Good round-trip deal	£551 or less
Good one-way deal	£515 or less

Icelandair
25/11-2/12
2 total stops
25h 25m total
London to Seattle

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15/12
2 total stops
18h 50m total
London to Seattle

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Highest demand for flights based on searches. 12% potential increase in price (£78 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

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Average for return flights in October 2025

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Price to beat on a round-trip flight from London to Seattle/Tacoma Intl.

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Price to beat on a one-way flight from London to Seattle/Tacoma Intl.

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Find flight deals to Seattle

Enter your travel dates to find the best prices.

Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.

Tue 25/1111:55LGW - SEA

1 stop13h 05mIcelandair

Tue 2/1214:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 28/10£450

Mon 15/1220:35LHR - SEA

1 stop28h 25mIcelandair

Thu 15/114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£450

Wed 12/1112:15LHR - SEA

1 stop12h 45mIcelandair

Wed 19/1114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£453

Tue 11/1120:35LHR - SEA

1 stop28h 25mIcelandair

Tue 18/1114:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 28/10£454

Wed 26/1112:15LHR - SEA

1 stop12h 45mIcelandair

Wed 3/1214:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 29/10£456

Tue 2/1220:35LHR - SEA

1 stop28h 25mIcelandair

Tue 9/1214:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£457

Tue 2/1220:35LHR - SEA

1 stop28h 25mIcelandair

Tue 9/1214:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 29/10£458

Wed 26/1112:15LHR - SEA

1 stop12h 45mIcelandair

Wed 3/1214:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 29/10£464

Mon 8/1212:15LHR - SEA

1 stop12h 45mIcelandair

Thu 11/1214:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£466

Tue 11/1120:35LHR - SEA

1 stop28h 25mIcelandair

Wed 19/1114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£467

Tue 11/1120:35LHR - SEA

1 stop28h 25mIcelandair

Mon 17/1114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£468

Mon 17/1112:10LHR - SEA

1 stop14h 10mAer Lingus

Sun 30/1120:05SEA - LHR

1 stop11h 30mAer Lingus

Deal found 29/10£470

Best flights to Seattle
Discover carefully curated flight deals to Seattle that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2025.

Wed 12/1111:55LGW - SEA

1 stop13h 05mIcelandair

Wed 19/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 28/10£480

Thu 4/1206:00LTN - SEA

1 stop19h 00mMultiple Airlines

Mon 8/1214:35SEA - LTN

1 stop15h 25mMultiple Airlines

Deal found 29/10£482

Wed 25/212:20LHR - SEA

Nonstop10h 25mVirgin Atlantic

Sat 7/316:45SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 29/10£496

Thu 5/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Tue 24/210:30SEA - LHR

1 stop15h 30mBritish Airways

Deal found 30/10£504

Mon 9/206:30LHR - SEA

1 stop13h 40mUnited Airlines

Thu 19/207:00SEA - LHR

1 stop14h 55mUnited Airlines

Deal found 30/10£504

Thu 13/1108:40LCY - SEA

1 stop35h 05mDelta

Mon 17/1115:00SEA - LCY

1 stop33h 50mDelta

Deal found 29/10£568

Sun 14/1211:20LGW - SEA

2 stops30h 38mAmerican Airlines

Sun 21/1206:00SEA - LGW

2 stops19h 00mAmerican Airlines

Deal found 29/10£582

Sun 26/406:15STN - SEA

1 stop19h 00mTurkish Airlines

Fri 15/519:10SEA - STN

1 stop31h 05mTurkish Airlines

Deal found 28/10£718

Mon 15/1220:35LHR - SEA

1 stop28h 25mIcelandair

Thu 8/114:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 28/10£485

Mon 17/1110:15STN - SEA

1 stop16h 05mMultiple Airlines

Sun 30/1120:05SEA - STN

1 stop12h 30mMultiple Airlines

Deal found 28/10£487

Fri 6/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Fri 20/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Wed 25/220:05LCY - SEA

1 stop23h 35mVirgin Atlantic

Sat 7/315:05SEA - LCY

1 stop19h 20mVirgin Atlantic

Deal found 29/10£516

Fri 21/1105:50LTN - SEA

1 stop20h 30mMultiple Airlines

Sun 30/1120:05SEA - LTN

1 stop12h 40mMultiple Airlines

Deal found 28/10£494

Mon 23/311:55LGW - SEA

1 stop13h 05mIcelandair

Thu 26/315:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 29/10£498

Wed 11/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Thu 19/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Thu 13/1108:40LCY - SEA

2 stops21h 43mDelta

Mon 17/1107:20SEA - LCY

2 stops16h 50mDelta

Deal found 29/10£572

Tue 10/317:50LCY - SEA

1 stop25h 45mVirgin Atlantic

Tue 17/306:05SEA - LCY

2 stops19h 45mVirgin Atlantic

Deal found 28/10£529

Fri 21/1106:30STN - SEA

1 stop19h 50mMultiple Airlines

Sun 30/1120:05SEA - STN

1 stop12h 30mMultiple Airlines

Deal found 28/10£496

Fri 6/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Mon 23/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Wed 24/1211:55LGW - SEA

1 stop13h 05mIcelandair

Wed 7/114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 28/10£507

Thu 13/1109:20LCY - SEA

1 stop34h 25mDelta

Mon 17/1115:00SEA - LCY

1 stop33h 10mDelta

Deal found 28/10£582

Tue 10/308:40LCY - SEA

2 stops20h 25mVirgin Atlantic

Tue 17/306:05SEA - LCY

2 stops18h 10mVirgin Atlantic

Deal found 28/10£533

Mon 17/1108:50LTN - SEA

1 stop17h 30mMultiple Airlines

Sun 30/1120:05SEA - LTN

1 stop12h 40mMultiple Airlines

Deal found 28/10£499

Mon 9/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Sat 21/210:30SEA - LHR

1 stop13h 45mBritish Airways

Deal found 30/10£504

Thu 27/1112:15LHR - SEA

1 stop12h 45mIcelandair

Mon 1/1214:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£507

Wed 11/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Sun 22/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Mon 10/1109:20LCY - SEA

2 stops21h 05mVirgin Atlantic

Tue 18/1115:00SEA - LCY

1 stop17h 35mVirgin Atlantic

Deal found 28/10£557

Fri 6/207:00LGW - SEA

2 stops20h 52mMultiple Airlines

Tue 24/223:20SEA - LGW

1 stop22h 40mMultiple Airlines

Deal found 30/10£529

Mon 15/1211:55LGW - SEA

1 stop13h 05mIcelandair

Fri 9/114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 28/10£532

Fri 6/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Wed 18/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Direct flights to Seattle
Explore direct flight options to Seattle based on user searches, and compare prices and availability for your desired travel dates. Data last updated 30 October 2025.

Sat 17/115:05LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 20/116:45SEA - LHR

Nonstop9h 45mVirgin Atlantic

Deal found 28/10£478

Tue 10/312:20LHR - SEA

Nonstop10h 20mVirgin Atlantic

Tue 17/317:40SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 28/10£484

Tue 10/314:45LHR - SEA

Nonstop10h 05mVirgin Atlantic

Tue 17/320:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 29/10£485

Thu 5/312:20LHR - SEA

Nonstop10h 25mVirgin Atlantic

Tue 10/320:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 28/10£485

Sat 21/309:25LHR - SEA

Nonstop10h 05mBritish Airways

Sat 28/314:35SEA - LHR

Nonstop9h 35mBritish Airways

Deal found 29/10£495

Sat 7/215:05LHR - SEA

Nonstop10h 05mDelta

Wed 18/216:55SEA - LHR

Nonstop9h 35mDelta

Deal found 30/10£496

Mon 9/314:45LHR - SEA

Nonstop10h 05mVirgin Atlantic

Thu 19/317:40SEA - LHR

Nonstop9h 50mVirgin Atlantic

Deal found 28/10£497

Thu 5/214:55LHR - SEA

Nonstop10h 00mBritish Airways

Sat 21/218:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 30/10£504

Thu 27/1114:45LHR - SEA

Nonstop10h 05mVirgin Atlantic

Thu 4/1219:20SEA - LHR

Nonstop9h 30mVirgin Atlantic

Deal found 29/10£505

Thu 19/314:55LHR - SEA

Nonstop10h 00mBritish Airways

Fri 27/319:50SEA - LHR

Nonstop9h 30mBritish Airways

Deal found 29/10£507

Mon 23/214:45LHR - SEA

Nonstop10h 05mDelta

Thu 5/319:20SEA - LHR

Nonstop9h 30mDelta

Deal found 29/10£508

Fri 27/212:20LHR - SEA

Nonstop10h 25mDelta

Thu 5/319:20SEA - LHR

Nonstop9h 30mDelta

Deal found 29/10£513

Last-minute flights to Seattle
Discover last-minute flight deals to Seattle. Data last updated 30 October 2025 and is based on user searches.

Tue 4/1120:35LHR - SEA

1 stop28h 25mIcelandair

Tue 11/1114:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 29/10£467

Wed 5/1112:15LHR - SEA

1 stop12h 45mIcelandair

Wed 31/1214:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 29/10£501

Wed 5/1111:55LGW - SEA

1 stop13h 05mIcelandair

Wed 31/1214:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 29/10£507

Thu 6/1112:15LHR - SEA

1 stop12h 45mIcelandair

Mon 10/1114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 28/10£478

Thu 6/1109:00LTN - SEA

2 stops16h 00mMultiple Airlines

Thu 13/1114:35SEA - LTN

2 stops14h 45mMultiple Airlines

Deal found 29/10£481

Thu 6/1106:30STN - SEA

2 stops18h 30mMultiple Airlines

Thu 13/1114:35SEA - STN

2 stops16h 15mMultiple Airlines

Deal found 29/10£482

Thu 6/1111:55LGW - SEA

1 stop13h 05mIcelandair

Thu 13/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 29/10£487

Thu 6/1111:55LGW - SEA

1 stop13h 05mIcelandair

Sat 15/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 27/10£498

Thu 6/1108:50LGW - SEA

2 stops16h 10mMultiple Airlines

Thu 13/1114:35SEA - LGW

2 stops15h 50mMultiple Airlines

Deal found 29/10£501

Thu 6/1120:35LHR - SEA

1 stop28h 25mIcelandair

Sat 15/1114:35SEA - LHR

1 stop20h 55mIcelandair

Deal found 27/10£502

Thu 6/1112:15LHR - SEA

1 stop12h 45mIcelandair

Thu 13/1114:35SEA - LHR

1 stop12h 15mIcelandair

Deal found 29/10£504

Fri 7/1111:55LGW - SEA

1 stop13h 05mIcelandair

Thu 20/1114:35SEA - LGW

1 stop12h 20mIcelandair

Deal found 28/10£506

One-way flights to Seattle
Search for one-way flight options to Seattle. Find affordable one-way fares based on user searches. Data last updated 30 October 2025.

Mon 15/1206:10STN - SEA

2 stops18h 50mMultiple Airlines

Deal found 28/10£420

Sat 18/409:50LHR - SEA

Nonstop9h 45mFinnair

Deal found 27/10£420

Tue 18/1113:00LGW - SEA

1 stop17h 11mMultiple Airlines

Deal found 28/10£420

Fri 14/1113:00LGW - SEA

1 stop29h 25mMultiple Airlines

Deal found 28/10£421

Wed 11/211:40LGW - SEA

1 stop18h 36mMultiple Airlines

Deal found 29/10£422

Tue 25/1114:50LHR - SEA

1 stop29h 41mMultiple Airlines

Deal found 28/10£422

Sat 7/210:00LCY - SEA

2 stops20h 16mMultiple Airlines

Deal found 28/10£423

Fri 14/1109:10STN - SEA

2 stops33h 15mMultiple Airlines

Deal found 28/10£423

Thu 29/114:55LHR - SEA

Nonstop10h 00mBritish Airways

Deal found 29/10£423

Thu 5/309:15LCY - SEA

2 stops21h 17mSWISS

Deal found 28/10£423

Sun 16/1106:15STN - SEA

2 stops21h 35mMultiple Airlines

Deal found 29/10£423

Sat 24/114:55LHR - SEA

Nonstop10h 00mBritish Airways

Deal found 27/10£423

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Flights to Seattle in 2025

Find the latest flights to Seattle in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 30 October 2025.

Return from

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Cheapest in

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Good round-trip deal

Good one-way deal

Find flight deals to Seattle

Cheapest flights to SeattleExplore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.

Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.

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Cheapest flights to Seattle
Explore the most affordable flight options available to Seattle. Find the lowest fares based on data from user searches, with prices last updated on 30 October 2025.