Route Price Intelligence
Cheap Flights From Seattle to London
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$876
Deals From
$812
Usually Costs
$812 – $1,020
Lowest We've Seen
$495
Based on 3,854 price pointshigh confidence
Monthly Price Guide
Jan
$855
Feb
$818
Mar
$805
Apr
$871
May
$937
Jun
$1,131
Jul
$1,058
Aug
$854
Sep
$806
Oct
$801
Nov
$827
Dec
$950
Cheapest Average Expensive
Best Time to Fly from Seattle to London
The cheapest time to fly from Seattle to London is typically October, when fares average around $801. The most expensive month tends to be June at around $1,131. For the best deals, consider flying in October, March, September.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $51373 price checksWorst: $772