Route Price Intelligence
Cheap Flights From St. Louis to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$1,024
Deals From
$909
Usually Costs
$909 – $1,183
Lowest We've Seen
$446
Based on 248 price pointshigh confidence
Monthly Price Guide
Jan
$911
Feb
—
Mar
—
Apr
$909
May
$1,180
Jun
$1,214
Jul
$1,170
Aug
$986
Sep
$986
Oct
$849
Nov
$836
Dec
$1,030
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 $836. The most expensive month tends to be June at around $1,214. For the best deals, consider flying in November, October, April.
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