Cheapest return DTW–SJO flights, July

AirHint found the following cheapest return flights from Detroit (DTW) to San Jose (SJO) in July 2026 (see full year).

Return flights

25 Jul - 01 Aug Frontier Airlines
04 Jul - 11 Jul Frontier Airlines
30 Jul - 03 Aug Spirit Airlines
30 Jul - 01 Aug Spirit Airlines
25 Jul - 02 Aug Spirit Airlines
06 Jul - 12 Jul Spirit Airlines
15 Jul - 02 Aug Spirit Airlines
01 Jul - 14 Jul Frontier Airlines
25 Jul - 03 Aug Spirit Airlines
02 Jul - 07 Jul Spirit Airlines
28 Jul - 04 Aug Frontier Airlines
11 Jul - 18 Jul Spirit Airlines
15 Jul - 03 Aug Spirit Airlines
15 Jul - 01 Aug Spirit Airlines
06 Jul - 18 Jul Spirit Airlines
15 Jul - 26 Jul Spirit Airlines
11 Jul - 01 Aug Spirit Airlines
06 Jul - 26 Jul Spirit Airlines
25 Jul - 26 Jul Spirit Airlines
15 Jul - 18 Jul Spirit Airlines

Also check the deals for one-way flights from Detroit to San Jose in July.

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