Cheapest return flights from Boston to Santiago in April from $367

Best time to book flights for Boston (BOS) to Santiago (STI) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Santiago (STI) in April 2025 (see full year).

Return flights

14 Apr - 17 Apr Frontier Airlines
27 Apr - 20 May jetBlue direct
27 Apr - 06 May Delta
15 Apr - 30 Apr jetBlue direct
02 Apr - 09 Apr United
03 Apr - 08 Apr United
04 Apr - 09 Apr Frontier Airlines
03 Apr - 06 Apr jetBlue
04 Apr - 09 Apr jetBlue direct
17 Apr - 02 May jetBlue direct
03 Apr - 08 Apr jetBlue direct
03 Apr - 06 Apr jetBlue direct
10 Apr - 16 Apr jetBlue direct

Also check the deals for one-way flights from Boston to Santiago 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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