AirHint found the following cheapest return flights from Boston (BOS) to Edinburgh (EDI) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec	Air Canada
01 Dec - 13 Dec	Aer Lingus
25 Dec - 08 Jan	Air Canada
17 Dec - 09 Jan	Aer Lingus
03 Dec - 10 Dec	United
27 Dec - 17 Jan	Aer Lingus
02 Dec - 09 Dec	United
19 Dec - 09 Jan	Icelandair
22 Dec - 03 Jan	Icelandair
08 Dec - 15 Dec	United
07 Dec - 14 Dec	United
26 Dec - 04 Jan	Icelandair
05 Dec - 03 Jan	Aer Lingus
12 Dec - 19 Dec	United
24 Dec - 03 Jan	Icelandair
17 Dec - 24 Dec	United
13 Dec - 20 Dec	United
18 Dec - 25 Dec	United
28 Dec - 04 Jan	United

Also check the deals for one-way flights from Boston to Edinburgh in December.

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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Cheapest return flights from Boston to Edinburgh in December from 377€

Return flights