Cheapest return flights from Boise to Las Vegas in December from $86

AirHint found the following cheapest return flights from Boise (BOI) to Las Vegas (LAS) in December 2025 (see full year).

Return flights

08 Dec - 12 Dec Allegiant Air direct
08 Dec - 19 Dec Allegiant Air direct
15 Dec - 19 Dec Allegiant Air direct
08 Dec - 15 Dec Allegiant Air direct
08 Dec - 26 Dec Allegiant Air direct
12 Dec - 19 Dec Allegiant Air direct
15 Dec - 26 Dec Allegiant Air direct
03 Dec - 06 Dec Southwest Airlines
12 Dec - 15 Dec Allegiant Air direct
15 Dec - 02 Jan Allegiant Air direct
12 Dec - 26 Dec Allegiant Air direct
12 Dec - 02 Jan Allegiant Air direct
22 Dec - 02 Jan Allegiant Air direct
29 Dec - 02 Jan Allegiant Air direct
19 Dec - 02 Jan Allegiant Air direct

Also check the deals for one-way flights from Boise to Las Vegas in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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