Cheapest return flights from Boston to Frankfurt in December from $511

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

Return flights

01 Dec - 08 Dec TAP
05 Dec - 08 Dec TAP
30 Dec - 14 Jan Aer Lingus
04 Dec - 10 Dec TAP
07 Dec - 14 Dec TAP
07 Dec - 16 Dec TAP
04 Dec - 15 Dec TAP
31 Dec - 18 Jan Icelandair
12 Dec - 13 Jan Frontier Airlines
11 Dec - 15 Dec Air France
12 Dec - 18 Dec ITA Airways
13 Dec - 22 Dec Air Canada
11 Dec - 22 Dec Aer Lingus
10 Dec - 05 Jan Icelandair
30 Dec - 14 Jan Lufthansa direct
20 Dec - 15 Jan Aer Lingus
12 Dec - 04 Jan Frontier Airlines
17 Dec - 07 Jan Aer Lingus
31 Dec - 07 Jan Lufthansa direct
19 Dec - 11 Jan Spirit Airlines

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

Powered by

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.

Book a cheap hotel in Frankfurt

Cheap car rent in Frankfurt

Feel free to contact us with any feedback or request another flight research.