Washington to Las Vegas
IADLAS
Fly from Washington to Las Vegas starting at USD 159 with Allegiant Air.
Best fare available on Jul 31, 2026.
Limited seats. Better plans. Book before it's gone.
Washington to Las Vegas cheapest flights this week
Washington to Las Vegas monthly flight fare trend
Jul
from USD 159
Aug
from USD 44
Sep
from USD 44
Oct
from USD 137
Nov
from USD 150
Dec
No flights
Airport Details
Origin
Washington
Washington Dulles International Airport (IAD)
Dulles, IAD
Zone
New York
Elev
312 ft
Destination
Las Vegas
Harry Reid International Airport (LAS)
Las Vegas, LAS
Zone
Los Angeles
Elev
2181 ft
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