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
$295
Usually Costs
$295 – $341
Lowest We've Seen
$136
Based on 8,402 price pointshigh confidence
Monthly Price Guide
Jan
$315
Feb
$335
Mar
$462
Apr
$251
May
$264
Jun
$299
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 April, when fares average around $251. The most expensive month tends to be March at around $462. For the best deals, consider flying in April, May, June.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $13687 price checksWorst: $290