Cheapest return flights from London to Boston in April from $529
AirHint found the following cheapest return flights from London (LCY) to Boston (BOS) in April 2026 (see full year).
Return flights
| 15 Apr - 26 Apr | SWISS | ||
| 20 Apr - 27 Apr | SWISS | ||
| 17 Apr - 22 Apr | KLM | ||
| 17 Apr - 21 Apr | KLM | ||
| 15 Apr - 21 Apr | SWISS | ||
| 29 Apr - 03 May | SWISS | ||
| 03 Apr - 19 Apr | SWISS | ||
| 02 Apr - 02 Apr | Virgin Atlantic |
Also check the deals for one-way flights from London to Boston in April.
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.
