Route Price Intelligence
Cheap Flights From St. Louis to Washington Dc
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$315
Deals From
$299
Usually Costs
$299 – $348
Lowest We've Seen
$136
Based on 8,371 price pointshigh confidence
Monthly Price Guide
Jan
$326
Feb
$335
Mar
$474
Apr
$280
May
$254
Jun
$279
Jul
$315
Aug
$315
Sep
$315
Oct
$315
Nov
$326
Dec
$326
Cheapest Average Expensive
Best Time to Fly from St. Louis to Washington Dc
The cheapest time to fly from St. Louis to Washington Dc is typically May, when fares average around $254. The most expensive month tends to be March at around $474. For the best deals, consider flying in May, June, April.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13889 price checksWorst: $290