Route Price Intelligence
Cheap Flights From Seattle to London Ontario
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$559
Deals From
$513
Usually Costs
$513 – $581
Lowest We've Seen
$276
Based on 4,657 price pointshigh confidence
Monthly Price Guide
Jan
$579
Feb
$559
Mar
$1,092
Apr
$685
May
$504
Jun
$534
Jul
$557
Aug
$553
Sep
$559
Oct
$559
Nov
$559
Dec
$578
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 $504. The most expensive month tends to be March at around $1,092. For the best deals, consider flying in May, June, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $27671 price checksWorst: $513