Route Price Intelligence
Cheap Flights From Seattle to London
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$836
Deals From
$769
Usually Costs
$769 – $984
Lowest We've Seen
$495
Based on 8,488 price pointshigh confidence
Monthly Price Guide
Jan
$806
Feb
$807
Mar
$1,003
Apr
$836
May
$884
Jun
$1,088
Jul
$1,023
Aug
$812
Sep
$742
Oct
$761
Nov
$781
Dec
$905
Cheapest Average Expensive
Best Time to Fly from Seattle to London
The cheapest time to fly from Seattle to London is typically September, when fares average around $742. The most expensive month tends to be June at around $1,088. For the best deals, consider flying in September, October, November.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $49990 price checksWorst: $735