Cheap flights from Washington to West of The Strip

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

Popular airlines from Washington to West of The Strip

  • 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 West of The Strip (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.

Delta
Sat, 9 Aug. - Sat, 16 Aug.
IAD
Washington
LAS
Las Vegas
AU$394 Return, found 3 days ago
AU$394
Return
found 3 days ago
Select Delta flight, departing Sat, 9 Aug. from Washington to Las Vegas, returning Sat, 16 Aug., priced at AU$394 found 3 days ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
IAD
Washington
LAS
Las Vegas
AU$396 Return, found 15 hours ago
AU$396
Return
found 15 hours ago
Select Delta flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$396 found 15 hours ago
Delta
Thu, 4 Sep. - Thu, 11 Sep.
IAD
Washington
LAS
Las Vegas
AU$398 Return, found 15 hours ago
AU$398
Return
found 15 hours ago
Select Delta flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$398 found 15 hours ago
Alaska Airlines
Thu, 4 Sep. - Thu, 11 Sep.
DCA
Washington
LAS
Las Vegas
AU$404 Return, found 15 hours ago
AU$404
Return
found 15 hours ago
Select Alaska Airlines flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$404 found 15 hours ago
American Airlines
Wed, 22 Oct. - Sun, 9 Nov.
DCA
Washington
LAS
Las Vegas
AU$405 Return, found 5 days ago
AU$405
Return
found 5 days ago
Select American Airlines flight, departing Wed, 22 Oct. from Washington to Las Vegas, returning Sun, 9 Nov., priced at AU$405 found 5 days ago
United
Sat, 9 Aug. - Sat, 16 Aug.
IAD
Washington
LAS
Las Vegas
AU$429 Return, found 3 days ago
AU$429
Return
found 3 days ago
Select United flight, departing Sat, 9 Aug. from Washington to Las Vegas, returning Sat, 16 Aug., priced at AU$429 found 3 days 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.