Route Price Intelligence
Cheap Flights From Seattle to London Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$478
Deals From
$413
Usually Costs
$413 – $514
Lowest We've Seen
$276
Based on 8,092 price pointshigh confidence
Monthly Price Guide
Jan
$658
Feb
$569
Mar
$503
Apr
$362
May
$331
Jun
$567
Jul
$514
Aug
$514
Sep
$635
Oct
$541
Nov
$654
Dec
$779
Cheapest Average Expensive
Best Time to Fly from Seattle to London Ontario
The cheapest time to fly from Seattle to London Ontario is typically May, when fares average around $331. The most expensive month tends to be December at around $779. For the best deals, consider flying in May, April, March.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $27656 price checksWorst: $427