Route Price Intelligence
Cheap Flights From St. Louis to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$869
Great Deal
Under $761
Typical Range
$761 – $1,018
Lowest We've Seen
$446
Based on 251 price pointshigh confidence
Monthly Price Guide
Jan
$807
Feb
$758
Mar
$848
Apr
$881
May
—
Jun
—
Jul
$1,160
Aug
$1,019
Sep
$940
Oct
$861
Nov
$756
Dec
$850
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 $756. The most expensive month tends to be July at around $1,160. For the best deals, consider flying in November, February, January.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: November17,640 fares analyzedTypical low: $758