Flights from Boston to Kos from US$ 629.99**
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1 Passenger, Economy
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Best Flights Deals from Boston to Kos
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US$
From | To | Fare Type | Dates | Price |
|---|---|---|---|---|
| Boston (BOS) | Kos (KGS) | Oneway / Economy | Depart: 05/18/2026 | From US$Â 629.99 Updated: 16 hrs ago |
| Boston (BOS) | Kos (KGS) | Oneway / Economy | Depart: 05/15/2026 | From US$Â 689.99 Updated: 16 hrs ago |
*Fares displayed have been collected within the last 48hrs and may no longer be available at time of booking.