Route Price Intelligence
Cheap Flights From Seattle to London
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$743
Deals From
$660
Usually Costs
$660 – $872
Lowest We've Seen
$495
Based on 8,369 price pointshigh confidence
Monthly Price Guide
Jan
$631
Feb
$620
Mar
$620
Apr
$572
May
$670
Jun
$897
Jul
$876
Aug
$660
Sep
$602
Oct
$581
Nov
$615
Dec
$696
Cheapest Average Expensive
Best Time to Fly from Seattle to London
The cheapest time to fly from Seattle to London is typically April, when fares average around $572. The most expensive month tends to be June at around $897. For the best deals, consider flying in April, October, September.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $49579 price checksWorst: $688