Route Price Intelligence
Cheap Flights From Portland to London
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$747
Deals From
$666
Usually Costs
$666 – $904
Lowest We've Seen
$495
Based on 8,550 price pointshigh confidence
Monthly Price Guide
Jan
$722
Feb
$704
Mar
$669
Apr
$620
May
$744
Jun
$996
Jul
$904
Aug
$663
Sep
$612
Oct
$660
Nov
$669
Dec
$757
Cheapest Average Expensive
Best Time to Fly from Portland to London
The cheapest time to fly from Portland to London is typically September, when fares average around $612. The most expensive month tends to be June at around $996. For the best deals, consider flying in September, April, October.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $49559 price checksWorst: $595