AirHint found the following cheapest one-way flights from London (LCY) to Boston (BOS) in May 2026 (see full year).
One-Way flights
| 11 May | SWISS | ||
| 05 May | SWISS | ||
| 31 May | ITA Airways | ||
| 15 May | SWISS | ||
| 01 May | SWISS | ||
| 07 May | SWISS | ||
| 25 May | SWISS | ||
| 17 May | SWISS | ||
| 19 May | SWISS | ||
| 28 May | SWISS |
Also check the deals for return flights from London to Boston in May.
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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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