Route Price Intelligence
Cheap Flights From St. Louis to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$1,023
Deals From
$904
Usually Costs
$904 – $1,192
Lowest We've Seen
$446
Based on 4,166 price pointshigh confidence
Monthly Price Guide
Jan
$935
Feb
—
Mar
—
Apr
$911
May
$1,181
Jun
$1,225
Jul
$1,152
Aug
$986
Sep
$989
Oct
$858
Nov
$854
Dec
$1,126
Cheapest Average Expensive
Best Time to Fly from St. Louis to Porto
The cheapest time to fly from St. Louis to Porto is typically November, when fares average around $854. The most expensive month tends to be June at around $1,225. For the best deals, consider flying in November, October, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $47866 price checksWorst: $758