Cheap flights from Washington to South Las Vegas

View AU$140 flight on Sun, 21 Sep. 2025Opens in a new window

Popular airlines from Washington to South Las Vegas

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Alaska Airlines

    Alaska Airlines

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington (WAS) to South Las Vegas (LAS)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
DCA
Washington
LAS
Las Vegas
AU$279 Return, found 1 day ago
AU$279
Return
found 1 day ago
Select American Airlines flight, departing Sat, 6 Sep. from Washington to Las Vegas, returning Sat, 13 Sep., priced at AU$279 found 1 day ago
Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
IAD
Washington
LAS
Las Vegas
AU$393 Return, found 1 day ago
AU$393
Return
found 1 day ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Washington to Las Vegas, returning Sat, 13 Sep., priced at AU$393 found 1 day ago
Delta
Sat, 6 Sep. - Sat, 13 Sep.
DCA
Washington
LAS
Las Vegas
AU$394 Return, found 1 day ago
AU$394
Return
found 1 day ago
Select Delta flight, departing Sat, 6 Sep. from Washington to Las Vegas, returning Sat, 13 Sep., priced at AU$394 found 1 day ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
IAD
Washington
LAS
Las Vegas
AU$396 Return, found 3 days ago
AU$396
Return
found 3 days ago
Select Delta flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$396 found 3 days ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
IAD
Washington
LAS
Las Vegas
AU$398 Return, found 3 days ago
AU$398
Return
found 3 days ago
Select Delta flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$398 found 3 days ago
United
Sat, 6 Sep. - Sat, 13 Sep.
IAD
Washington
LAS
Las Vegas
AU$413 Return, found 1 day ago
AU$413
Return
found 1 day ago
Select United flight, departing Sat, 6 Sep. from Washington to Las Vegas, returning Sat, 13 Sep., priced at AU$413 found 1 day ago

Find the cheapest month to fly from Washington (WAS) to Las Vegas (LAS)

September is typically the cheapest month to fly

From AU$148 - AU$285 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.