Route Price Intelligence
Cheap Flights From St. Louis to Porto
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$1,009
Deals From
$885
Usually Costs
$885 – $1,172
Lowest We've Seen
$446
Based on 6,542 price pointshigh confidence
Monthly Price Guide
Jan
$884
Feb
$856
Mar
$1,008
Apr
$910
May
$1,175
Jun
$1,183
Jul
$1,115
Aug
$984
Sep
$985
Oct
$865
Nov
$808
Dec
$1,062
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 $808. The most expensive month tends to be June at around $1,183. For the best deals, consider flying in November, February, October.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $44677 price checksWorst: $758