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
$325
Deals From
$250
Usually Costs
$250 – $346
Lowest We've Seen
$139
Based on 3,407 price pointshigh confidence
Monthly Price Guide
Jan
$336
Feb
$335
Mar
$749
Apr
$356
May
$201
Jun
$230
Jul
$270
Aug
$270
Sep
$335
Oct
$335
Nov
$357
Dec
$346
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 $201. The most expensive month tends to be March at around $749. 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