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Cheap flights from Seattle to London Gatwick Airport from C$ 384

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LGW
26 Feb — 5 Mar1
1 adult

Cheap flight deals from Seattle to Gatwick

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Gatwick (LGW). 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 21 February 2025.

Round-trip from

C$ 871

One-way from

C$ 384

Popular in

June

Cheapest in

January

Average price

C$ 864
Icelandair
  • Icelandair
  • 24/4-27/4
  • 2 total stops
  • 24h 40m total
  • Seattle to London
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1/4
  • 1/4
  • 3 total stops
  • 29h 56m total
  • Seattle to London
Search Deals
Highest demand for flights based on searches. 29% potential increase in price (C$ 645 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease (C$ 92 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
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Find flight deals from Seattle to Gatwick

Cheapest flights from Seattle to Gatwick
Explore the most affordable flight options available from Seattle to Gatwick. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 21 February 2025.

Thu 24/47:00 p.m.SEA - LGW
1 stop11h 40mIcelandair
Wed 30/43:40 p.m.LGW - SEA
1 stop13h 00mIcelandair
Deal found 20/2C$ 871
Tue 1/412:45 p.m.SEA - LGW
2 stops21h 05mSWISS
Tue 15/46:35 p.m.LGW - SEA
2 stops32h 26mSWISS
Deal found 19/2C$ 916
Mon 11/811:30 a.m.SEA - LGW
1 stop14h 05mJetBlue
Mon 8/912:10 p.m.LGW - SEA
1 stop18h 16mJetBlue
Deal found 20/2C$ 986
Thu 6/37:00 p.m.SEA - LGW
1 stop36h 50mTurkish Airlines
Sun 9/310:15 a.m.LGW - SEA
2 stops45h 40mTurkish Airlines
Deal found 20/2C$ 1,014
Wed 22/107:10 p.m.SEA - LGW
1 stop30h 45mMultiple Airlines
Mon 3/116:00 a.m.LGW - SEA
2 stops24h 29mMultiple Airlines
Deal found 19/2C$ 1,070
Mon 21/46:45 p.m.SEA - LGW
2 stops30h 40mBritish Airways
Mon 28/411:10 a.m.LGW - SEA
2 stops37h 49mBritish Airways
Deal found 20/2C$ 1,264
Mon 11/85:45 a.m.SEA - LGW
2 stops20h 15mVirgin Atlantic
Sun 7/912:00 p.m.LGW - SEA
1 stop18h 23mVirgin Atlantic
Deal found 18/2C$ 1,290
Mon 2/67:20 a.m.SEA - LGW
1 stop18h 40mDelta
Tue 17/612:00 p.m.LGW - SEA
1 stop18h 23mDelta
Deal found 19/2C$ 1,308
Thu 5/67:05 a.m.SEA - LGW
2 stops42h 20mWestJet
Tue 17/610:45 a.m.LGW - SEA
2 stops41h 43mWestJet
Deal found 20/2C$ 1,524

Find flights from Seattle to Gatwick within your budget

Customize your flight search to find flights from Seattle to Gatwick 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 629,999 searches. Data last updated 21 February 2025.

Fly from

Seattle

Fly to

Gatwick

Route

Depart

Return

Price

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 24/4

7:00 p.m.-2:40 p.m.

1 stop11h 40m

London Gatwick

Wed 30/4

3:40 p.m.-8:40 p.m.

1 stop13h 00m

C$ 871

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 1/4

12:45 p.m.-5:50 p.m.

2 stops21h 05m

London Gatwick

Tue 15/4

6:35 p.m.-7:01 p.m.

2 stops32h 26m

C$ 916

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 11/8

11:30 a.m.-9:35 a.m.

1 stop14h 05m

London Gatwick

Mon 8/9

12:10 p.m.-10:26 p.m.

1 stop18h 16m

C$ 986

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 6/3

7:00 p.m.-3:50 p.m.

1 stop36h 50m

London Gatwick

Sun 9/3

10:15 a.m.-12:55 a.m.

2 stops45h 40m

C$ 1,014

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Sun 2/3

5:15 a.m.-10:35 a.m.

1 stop21h 20m

London Gatwick

Wed 5/3

1:00 p.m.-2:53 p.m.

1 stop33h 53m

C$ 1,230

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 21/4

6:45 p.m.-9:25 a.m.

2 stops30h 40m

London Gatwick

Mon 28/4

11:10 a.m.-4:59 p.m.

2 stops37h 49m

C$ 1,264

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 11/8

5:45 a.m.-10:00 a.m.

2 stops20h 15m

London Gatwick

Sun 7/9

12:00 p.m.-10:23 p.m.

1 stop18h 23m

C$ 1,290

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Mon 2/6

7:20 a.m.-10:00 a.m.

1 stop18h 40m

London Gatwick

Tue 17/6

12:00 p.m.-10:23 p.m.

1 stop18h 23m

C$ 1,308

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Thu 5/6

7:05 a.m.-9:25 a.m.

2 stops42h 20m

London Gatwick

Tue 17/6

10:45 a.m.-8:28 p.m.

2 stops41h 43m

C$ 1,524

SeattleLondon

SEA - LGW

SEALGW

Seattle/Tacoma Intl

Tue 1/4

8:04 p.m.-10:00 a.m.

3 stops29h 56m

C$ 384

Flights are sorted by cheapest round-trip flights first.

Deals found on 18/2

Showing 1-10 of 17 results
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Best time to book a flight from Seattle to Gatwick

Have a flexible travel schedule? Discover the best time to fly to Gatwick from Seattle with our price prediction graph.
Estimated round-trip 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 to Gatwick

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

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

Currently, January is the cheapest month in which you can book a flight from Seattle to London Gatwick Airport (average of C$ 511). Flying from Seattle to London Gatwick Airport in July is currently the most expensive (average of C$ 793). 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.

Rainfall in Gatwick by month

Plan your trip to Gatwick by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Gatwick Airport ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Gatwick Airport when rainfall is around 40.0 mm.

Temperature in Gatwick by month

Plan your trip to Gatwick by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Gatwick Airport, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Gatwick

Get insights into the airlines that provide service to Gatwick. 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 Gatwick. Reviews last updated 21 February 2025.
Read reviews from past customers who have flown Delta, SWISS and Virgin Atlantic from Seattle to London. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

JetBlue
7.4
Good
3,070 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Turkish Airlines
7.3
Good
3,832 reviews
Delta
8.0
Very good
8,219 reviews
Check prices

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Gatwick. 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 from for flights from Seattle to London Gatwick?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to London Gatwick. You should not have trouble finding flights to London Gatwick from Seattle/Tacoma Intl; the airport handles an average of 0 outbound flights to London Gatwick per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Seattle airport to London Gatwick. It is only a 18.4 km journey to Seattle/Tacoma Intl (SEA) from Seattle’s city centre.

  • What are the cheapest airlines flying from Seattle to London Gatwick Airport round-trip?

    Currently priced at C$ 871, Icelandair will fly you from Seattle to London Gatwick Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from SWISS and JetBlue - these airlines can fly you to your destination from C$ 916 and C$ 986, respectively. These flights start at 21% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Seattle to London Gatwick Airport one-way?

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at C$ 393. WestJet flights start at C$ 625 while deals on SWISS start at C$ 626 one-way.

  • Can I find deals for flights from Seattle to Gatwick that include hotel bookings?

    Yes. In addition to deals on Seattle to Gatwick flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Gatwick?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Gatwick.

  • Can I find deals for business class flights from Seattle to Gatwick?

    Yes. Cheapflights offers flight deals from Seattle to Gatwick by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to London Gatwick Airport?

    Currently, January is the cheapest month in which you can book a flight from Seattle to London Gatwick Airport (average of C$ 511). Flying from Seattle to London Gatwick Airport in July is currently the most expensive (average of C$ 793). 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.

See more FAQs

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Alternative routes for Seattle to Gatwick

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Yes, Cheapflights offers price alerts on Seattle to Gatwick 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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