Cheapest return flights from Seattle to San Jose in April from $342

Best time to book flights for Seattle (SEA) to San Jose (SJO) flights at AirHint

AirHint found the following cheapest return flights from Seattle (SEA) to San Jose (SJO) in April 2025 (see full year).

Return flights

30 Apr - 11 May Spirit Airlines
01 Apr - 07 Apr Spirit Airlines
08 Apr - 15 Apr Frontier Airlines
30 Apr - 07 May Spirit Airlines
29 Apr - 09 May Spirit Airlines
30 Apr - 08 May Spirit Airlines
26 Apr - 03 May Frontier Airlines
02 Apr - 08 Apr Spirit Airlines
23 Apr - 28 Apr Alaska Airlines
30 Apr - 10 May Spirit Airlines
25 Apr - 02 May Frontier Airlines
11 Apr - 18 Apr Frontier Airlines
09 Apr - 19 Apr Frontier Airlines
13 Apr - 19 Apr Spirit Airlines
09 Apr - 14 Apr Frontier Airlines
06 Apr - 14 Apr Frontier Airlines
12 Apr - 19 Apr Alaska Airlines

Also check the deals for one-way flights from Seattle to San Jose in April.

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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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