Cheap flights from Baltimore to Mountain States

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

Popular airlines from Baltimore to Mountain States

  • 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 Baltimore (WAS) to Mountain States (DEN)

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, 16 Aug. - Sat, 23 Aug.
DCA
Washington
DEN
Denver
AU$302 Return, found 4 days ago
AU$302
Return
found 4 days ago
Select American Airlines flight, departing Sat, 16 Aug. from Washington to Denver, returning Sat, 23 Aug., priced at AU$302 found 4 days ago
Delta
Mon, 11 Aug. - Tue, 19 Aug.
DCA
Washington
DEN
Denver
AU$362 Return, found 5 days ago
AU$362
Return
found 5 days ago
Select Delta flight, departing Mon, 11 Aug. from Washington to Denver, returning Tue, 19 Aug., priced at AU$362 found 5 days ago
American Airlines
Mon, 18 Aug. - Mon, 25 Aug.
BWI
Baltimore
DEN
Denver
AU$363 Return, found 4 days ago
AU$363
Return
found 4 days ago
Select American Airlines flight, departing Mon, 18 Aug. from Baltimore to Denver, returning Mon, 25 Aug., priced at AU$363 found 4 days ago
Delta
Mon, 18 Aug. - Mon, 25 Aug.
DCA
Washington
DEN
Denver
AU$363 Return, found 4 days ago
AU$363
Return
found 4 days ago
Select Delta flight, departing Mon, 18 Aug. from Washington to Denver, returning Mon, 25 Aug., priced at AU$363 found 4 days ago
United
Mon, 18 Aug. - Mon, 25 Aug.
DCA
Washington
DEN
Denver
AU$378 Return, found 4 days ago
AU$378
Return
found 4 days ago
Select United flight, departing Mon, 18 Aug. from Washington to Denver, returning Mon, 25 Aug., priced at AU$378 found 4 days ago
Alaska Airlines
Thu, 4 Sep. - Thu, 11 Sep.
DCA
Washington
LAS
Las Vegas
AU$404 Return, found 18 hours ago
AU$404
Return
found 18 hours ago
Select Alaska Airlines flight, departing Thu, 4 Sep. from Washington to Las Vegas, returning Thu, 11 Sep., priced at AU$404 found 18 hours ago

Find the cheapest month to fly from Baltimore (BWI) to Las Vegas (LAS)

September is typically the cheapest month to fly

From AU$148 - AU$235 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.