Cheapest return flights from Denver to San Juan in June from $298

Best time to book flights for Denver (DEN) to San Juan (SJU) flights at AirHint

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

Return flights

07 Jun - 09 Jun Frontier Airlines
04 Jun - 11 Jun Frontier Airlines
09 Jun - 13 Jun Frontier Airlines
05 Jun - 13 Jun Frontier Airlines
07 Jun - 14 Jun Frontier Airlines
13 Jun - 16 Jun Frontier Airlines
12 Jun - 17 Jun Frontier Airlines
26 Jun - 30 Jun jetBlue
27 Jun - 30 Jun Sun Country Airlines
12 Jun - 15 Jun Frontier Airlines
29 Jun - 05 Jul Sun Country Airlines
23 Jun - 07 Jul United direct
24 Jun - 08 Jul United
30 Jun - 14 Jul United
20 Jun - 04 Jul United
29 Jun - 13 Jul United
19 Jun - 03 Jul United
21 Jun - 05 Jul United
26 Jun - 10 Jul United
28 Jun - 12 Jul United

Also check the deals for one-way flights from Denver to San Juan 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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