
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 November 12, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $670 (Justfly.com) |
One-way from | $336 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $867 |
Fly from
Fly to
Route
Depart
Return
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Fri 2/26
3:30 pm-3:45 pm
1 stop16h 15m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sat 5/1
6:35 pm-4:00 pm
1 stop13h 25m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Thu 3/11
2:35 pm-12:20 pm
2 stops37h 45m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Mon 12/7
7:05 pm-4:30 pm
1 stop37h 25m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Tue 12/15
3:29 pm-5:50 am
1 stop30h 21m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sun 12/6
7:05 pm-4:30 pm
1 stop37h 25m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sun 1/3
3:25 pm-3:45 pm
1 stop16h 20m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sat 12/26
7:05 pm-10:35 pm
1 stop19h 30m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Sat 12/5
7:05 pm-4:30 pm
1 stop37h 25m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
SeattleLondon
SEA Seattle/Tacoma Intl - LGW London Gatwick
SEALGW
Seattle/Tacoma Intl
Tue 12/8
7:15 am-4:25 pm
2 stops25h 10m
London Gatwick
Wed 12/31
12:00 am-3:00 pm
Nonstop0h 00m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
William,Jun 2026
SEA - KEF
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
William,Jun 2026
SEA - KEF
Crew
Boarding
Food
Overall
Entertainment
Comfort
Reviews
William,Jun 2026
SEA - KEF
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.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$492 | Average$759 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$682 | Average$904 | FlexibilityNo cancel fee | On-time76% |