Cheapest return flights from Boston to London in May from $473
AirHint found the following cheapest return flights from Boston (BOS) to London (LHR)
in May 2026 (see full year ).
Return flights
06 May
- 13 May
Iberia
$ 473
05 May
- 30 May
Iberia
$ 496
09 May
- 30 May
Iberia
$ 496
06 May
- 30 May
Iberia
$ 496
07 May
- 10 May
British Airways
$ 496
direct
07 May
- 19 May
British Airways
$ 498
direct
05 May
- 12 May
British Airways
$ 498
direct
09 May
- 16 May
Aer Lingus
$ 506
14 May
- 06 Jun
Iberia
$ 517
20 May
- 13 Jun
Iberia
$ 517
20 May
- 06 Jun
Iberia
$ 517
01 May
- 23 May
British Airways
$ 522
direct
09 May
- 16 May
Air France
$ 536
direct
18 May
- 16 Jun
British Airways
$ 543
direct
22 May
- 13 Jun
Iberia
$ 569
20 May
- 13 Jun
British Airways
$ 584
direct
20 May
- 06 Jun
American Airlines
$ 584
direct
28 May
- 20 Jun
British Airways
$ 594
direct
26 May
- 02 Jun
Aer Lingus
$ 608
27 May
- 04 Jun
Aer Lingus
$ 608
Also check the deals for one-way flights from Boston to London in May .
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