Route Price Intelligence
Cheap Flights From Sioux Falls to Washington Dc - Dulles
Live pricing benchmarks, monthly patterns, and historical lows for this route.
Typical Price
$378
Deals From
$337
Usually Costs
$337 – $432
Lowest We've Seen
$279
Based on 3,327 price pointshigh confidence
Monthly Price Guide
Jan
$319
Feb
$339
Mar
$429
Apr
$424
May
$390
Jun
$452
Jul
$413
Aug
$329
Sep
$339
Oct
$359
Nov
$339
Dec
$396
Cheapest Average Expensive
Best Time to Fly from Sioux Falls to Washington Dc - Dulles
The cheapest time to fly from Sioux Falls to Washington Dc - Dulles is typically January, when fares average around $319. The most expensive month tends to be June at around $452. For the best deals, consider flying in January, August, November.
Cheapest Fare Found (Last 90 Days)
The lowest round-trip price available on each day we checked
Best: $27966 price checksWorst: $339