Cheapest return flights from Boise to Denver in January from 56€

AirHint found the following cheapest return flights from Boise (BOI) to Denver (DEN) in January 2026 (see full year).

Return flights

30 Jan - 02 Feb Frontier Airlines direct
15 Jan - 23 Jan Frontier Airlines direct
15 Jan - 19 Jan Frontier Airlines direct
23 Jan - 25 Jan Frontier Airlines
22 Jan - 26 Jan Alaska Airlines
29 Jan - 02 Feb Southwest Airlines direct
22 Jan - 26 Jan United direct
23 Jan - 25 Jan United direct
16 Jan - 19 Jan Allegiant Air
16 Jan - 19 Jan United direct
04 Jan - 06 Jan Frontier Airlines
02 Jan - 04 Jan United direct

Also check the deals for one-way flights from Boise to Denver in January.

Powered by

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.

Book a cheap hotel in Denver

Cheap car rent in Denver

Feel free to contact us with any feedback or request another flight research.