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
$315
Great Deal
Under $256
Typical Range
$256 – $328
Lowest We've Seen
$140
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$326
Feb
—
Mar
—
Apr
$401
May
$242
Jun
$257
Jul
$299
Aug
$258
Sep
$258
Oct
$315
Nov
$332
Dec
$326
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 $242. The most expensive month tends to be April at around $401. For the best deals, consider flying in May, June, August.
Typical Price by Travel Month
Median round-trip fare for each month, with the typical price range, from our ongoing tracking of this route
Cheapest month: October28,992 fares analyzedTypical low: $315