Route Price Intelligence
Cheap Flights From Seattle to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$738
Deals From
$650
Usually Costs
$650 – $877
Lowest We've Seen
$444
Based on 8,294 price pointshigh confidence
Monthly Price Guide
Jan
$674
Feb
$674
Mar
$623
Apr
$570
May
$741
Jun
$832
Jul
$878
Aug
$714
Sep
$661
Oct
$618
Nov
$543
Dec
$651
Cheapest Average Expensive
Best Time to Fly from Seattle to Porto
The cheapest time to fly from Seattle to Porto is typically November, when fares average around $543. The most expensive month tends to be July at around $878. For the best deals, consider flying in November, April, October.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $44459 price checksWorst: $579