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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

$478$548$618$688$758Feb 3Mar 13Apr 19
Best: $47866 price checksWorst: $758
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