Cheapest return flights from Boston to Santiago in May from $376

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 May 2025 (see full year).

Return flights

19 May - 23 May jetBlue direct
12 May - 18 May jetBlue direct
08 May - 12 May jetBlue direct
08 May - 19 May jetBlue direct
19 May - 29 May Delta
08 May - 10 May jetBlue direct
18 May - 25 May jetBlue direct
30 May - 03 Jun Delta
19 May - 29 May jetBlue direct
23 May - 30 May jetBlue direct
22 May - 01 Jun Spirit Airlines
22 May - 28 May jetBlue
30 May - 03 Jun jetBlue direct
22 May - 01 Jun jetBlue direct

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

Skyscanner

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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