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
$293
Usually Costs
$293 – $348
Lowest We've Seen
$139
Based on 8,292 price pointshigh confidence
Monthly Price Guide
Jan
$398
Feb
$294
Mar
$291
Apr
$275
May
$315
Jun
$324
Jul
$315
Aug
$315
Sep
$315
Oct
$324
Nov
$326
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 April, when fares average around $275. The most expensive month tends to be January at around $398. For the best deals, consider flying in April, March, February.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13680 price checksWorst: $180