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
$258
Usually Costs
$258 – $326
Lowest We've Seen
$136
Based on 271 price pointshigh confidence
Monthly Price Guide
Jan
$326
Feb
—
Mar
—
Apr
$380
May
$244
Jun
$266
Jul
$299
Aug
$258
Sep
$256
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 $244. The most expensive month tends to be April at around $380. For the best deals, consider flying in May, September, August.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $14070 price checksWorst: $290