Cheapest return flights from Washington to San Jose in July from $323

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

Return flights

28 Jul - 04 Aug Avianca
11 Jul - 19 Jul Avianca
23 Jul - 29 Jul Avianca
01 Jul - 08 Jul Avianca
26 Jul - 02 Aug Avianca
15 Jul - 19 Jul Avianca
25 Jul - 02 Aug Avianca
04 Jul - 11 Jul Avianca
13 Jul - 19 Jul Avianca
19 Jul - 26 Jul Avianca
31 Jul - 09 Aug Avianca

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

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