Cheap flights from Boise to Mountain States

View AU$105 flight on Mon, 18 Aug. 2025Opens in a new window

Popular airlines from Boise to Mountain States

  • American Airlines

    American Airlines

  • Alaska Airlines

    Alaska Airlines

  • Delta

    Delta

  • United

    United

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Cheap Flights from Boise (BOI) 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.

Alaska Airlines
Fri, 22 Aug. - Fri, 29 Aug.
BOI
Boise
LAS
Las Vegas
AU$225 Return, found 1 day ago
AU$225
Return
found 1 day ago
Select Alaska Airlines flight, departing Fri, 22 Aug. from Boise to Las Vegas, returning Fri, 29 Aug., priced at AU$225 found 1 day ago
Delta
Fri, 22 Aug. - Fri, 29 Aug.
BOI
Boise
LAS
Las Vegas
AU$226 Return, found 1 day ago
AU$226
Return
found 1 day ago
Select Delta flight, departing Fri, 22 Aug. from Boise to Las Vegas, returning Fri, 29 Aug., priced at AU$226 found 1 day ago
Alaska Airlines
Tue, 19 Aug. - Tue, 26 Aug.
BOI
Boise
LAS
Las Vegas
AU$226 Return, found 2 hours ago
AU$226
Return
found 2 hours ago
Select Alaska Airlines flight, departing Tue, 19 Aug. from Boise to Las Vegas, returning Tue, 26 Aug., priced at AU$226 found 2 hours ago
Delta
Tue, 19 Aug. - Tue, 26 Aug.
BOI
Boise
LAS
Las Vegas
AU$241 Return, found 2 hours ago
AU$241
Return
found 2 hours ago
Select Delta flight, departing Tue, 19 Aug. from Boise to Las Vegas, returning Tue, 26 Aug., priced at AU$241 found 2 hours ago
American Airlines
Tue, 19 Aug. - Tue, 26 Aug.
BOI
Boise
LAS
Las Vegas
AU$244 Return, found 2 hours ago
AU$244
Return
found 2 hours ago
Select American Airlines flight, departing Tue, 19 Aug. from Boise to Las Vegas, returning Tue, 26 Aug., priced at AU$244 found 2 hours ago
United
Fri, 22 Aug. - Fri, 29 Aug.
BOI
Boise
LAS
Las Vegas
AU$332 Return, found 1 day ago
AU$332
Return
found 1 day ago
Select United flight, departing Fri, 22 Aug. from Boise to Las Vegas, returning Fri, 29 Aug., priced at AU$332 found 1 day ago

Find the cheapest month to fly from Boise (BOI) to Las Vegas (LAS)

September is typically the cheapest month to fly

From AU$61 - AU$177 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.