Cheapest one-way flights from San Diego to Denver in January from 22€

AirHint found the following cheapest one-way flights from San Diego (SAN) to Denver (DEN) in January 2026 (see full year).

One-Way flights

01 Jan Frontier Airlines direct
20 Jan Frontier Airlines direct
24 Jan Frontier Airlines direct
29 Jan Frontier Airlines direct
11 Jan Frontier Airlines direct
12 Jan Frontier Airlines direct
05 Jan Frontier Airlines direct
02 Jan American Airlines
02 Jan Frontier Airlines direct
03 Jan Frontier Airlines direct

Also check the deals for return flights from San Diego to Denver in January.

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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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