Route Price Intelligence
Cheap Flights From Seattle to London
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$740
Great Deal
Under $704
Typical Range
$704 – $779
Lowest We've Seen
$495
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$706
Feb
$729
Mar
$751
Apr
$745
May
—
Jun
—
Jul
$1,187
Aug
$873
Sep
$711
Oct
$724
Nov
$708
Dec
$764
Cheapest Average Expensive
Best Time to Fly from Seattle to London
The cheapest time to fly from Seattle to London is typically January, when fares average around $706. The most expensive month tends to be July at around $1,187. For the best deals, consider flying in January, November, September.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: September22,310 fares analyzedTypical low: $635