LHR to SEA from $713 in economy

AFAir France

DLDelta Air Lines

KLKLM

Round Trip•Economy

LHR

London Heathrow Airport

London Heathrow, United Kingdom

SEA

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$824 USD

-13%$713 USD

Verified 14 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5 6$1,019 7$1,019 8$1,016 9$1,023 10$1,249 11$1,253 12$1,531 13$940 14$940 15$1,040 16$1,068 17$1,012 18$1,083 19$869 20$881 21$881 22$881 23$893 24$869 25$876 26$876 27$881 28$881 29$881 30$893 31$941 1$1,107 2$876

Great Availability

60% of dates checked are available within 10% of the lowest price

Wednesday, July 22nd, 2026

6 round-trip options

Returning

Mon, Jul 27, 2026•5 Day Trip

$881 USD

Google Flights

Returning

Tue, Jul 28, 2026•6 Day Trip

$893 USD

Google Flights

Returning

Wed, Jul 29, 2026•7 Day Trip

$893 USD

Google Flights

Returning

Thu, Jul 30, 2026•8 Day Trip

$893 USD

Google Flights

Returning

Mon, Aug 3, 2026•12 Day Trip

$881 USD

Google Flights

Returning

Wed, Aug 5, 2026•14 Day Trip

$893 USD

Google Flights

London Heathrow (LHR) to Seattle / Tacoma (SEA) flight deal in economy from $713

London Heathrow Airport

Seattle–Tacoma International Airport

July 2026

Wednesday, July 22nd, 2026