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Cheap flights from Boston (BOS) to Sofia (SOF)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Boston (BOS) to Sofia (SOF)

How to find the cheapest flight from Boston (BOS) to Sofia (SOF)
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How to find the cheapest flight from Boston (BOS) to Sofia (SOF)
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How to find the cheapest flight from Boston (BOS) to Sofia (SOF)
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Cheap flights from Boston to Sofia in December 2025 , January 2026

31 Dec - 14 Jan $ 457.00
BOS
Boston
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
1 STOPS
BOS
Boston
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24 Dec - 08 Jan $ 1,219.00
BOS
Boston
Lufthansa
1 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
1 STOPS
BOS
Boston
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26 Dec - 08 Jan $ 1,219.00
BOS
Boston
Lufthansa
1 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
1 STOPS
BOS
Boston
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Last minute flights from Boston to Sofia

25 Dec - 31 Dec $ 1,089.00
BOS
Boston
United Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
2 STOPS
BOS
Boston
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26 Dec - 31 Dec $ 1,094.00
BOS
Boston
United Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
2 STOPS
BOS
Boston
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26 Dec - 31 Dec $ 1,402.00
BOS
Boston
Lufthansa
1 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
1 STOPS
BOS
Boston
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One-way flights to Sofia from Boston

6:25 PM - 9:20 AM
Austrian Airlines
1 Stops
10h 25m
BOS - SOF
$ 372
Kiwi
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10:25 AM - 9:20 AM
United Airlines
2 Stops
18h 25m
BOS - SOF
$ 507
Kiwi
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9:50 PM - 12:00 PM
Swiss International Air Lines
1 Stops
10h 25m
BOS - SOF
$ 591
Kiwi
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How to find the cheapest flight from Boston (BOS) to Sofia (SOF)

Related info for your journey
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How to find the cheapest flight from Boston (BOS) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Boston (BOS) to Sofia (SOF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.