Cheapest return flights from Denver to San Diego in June from $112

Best time to book flights for Denver (DEN) to San Diego (SAN) flights at AirHint

AirHint found the following cheapest return flights from Denver (DEN) to San Diego (SAN) in June 2025 (see full year).

Return flights

07 Jun - 14 Jun Frontier Airlines direct
10 Jun - 14 Jun Frontier Airlines direct
07 Jun - 10 Jun Frontier Airlines direct
04 Jun - 11 Jun Frontier Airlines direct
07 Jun - 11 Jun Frontier Airlines direct
07 Jun - 09 Jun Frontier Airlines direct
04 Jun - 08 Jun Frontier Airlines direct
03 Jun - 13 Jun Frontier Airlines direct
03 Jun - 06 Jun Frontier Airlines direct
02 Jun - 11 Jun Frontier Airlines
29 Jun - 05 Jul Frontier Airlines direct

Also check the deals for one-way flights from Denver to San Diego in June.

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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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