Route Price Intelligence
Cheap Flights From Washington, D.C. to Saint Louis
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$326
Deals From
$250
Usually Costs
$250 – $347
Lowest We've Seen
$139
Based on 1,355 price pointshigh confidence
Monthly Price Guide
Jan
$336
Feb
—
Mar
—
Apr
$390
May
$205
Jun
$230
Jul
$250
Aug
$250
Sep
$335
Oct
$336
Nov
$352
Dec
$347
Cheapest Average Expensive
Best Time to Fly from Washington, D.C. to Saint Louis
The cheapest time to fly from Washington, D.C. to Saint Louis is typically May, when fares average around $205. The most expensive month tends to be April at around $390. For the best deals, consider flying in May, June, July.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14072 price checksWorst: $180