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Cheap flights from Denver (DEN) to Sofia (SOF)

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How to find the cheapest flight from Denver (DEN) to Sofia (SOF)

How to find the cheapest flight from Denver (DEN) to Sofia (SOF)
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How to find the cheapest flight from Denver (DEN) to Sofia (SOF)
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How to find the cheapest flight from Denver (DEN) to Sofia (SOF)
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Cheap flights from Denver to Sofia in March , April 2026

31 Mar - 28 Apr $ 873.00
DEN
Denver
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
DEN
Denver
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31 Mar - 15 Apr $ 939.00
DEN
Denver
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
DEN
Denver
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31 Mar - 22 Apr $ 939.00
DEN
Denver
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
DEN
Denver
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Last minute flights from Denver to Sofia

24 Mar - 01 Apr $ 888.00
DEN
Denver
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
2 STOPS
DEN
Denver
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25 Mar - 02 Apr $ 895.00
DEN
Denver
Frontier Airlines
3 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
DEN
Denver
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23 Mar - 02 Apr $ 920.00
DEN
Denver
Frontier Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Frontier Airlines
3 STOPS
DEN
Denver
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One-way flights to Sofia from Denver

4:40 PM - 4:50 PM
Bulgaria Air
2 Stops
18h 20m
DEN - SOF
$ 473
Kiwi
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9:20 PM - 3:30 PM
United Airlines
1 Stops
13h
DEN - SOF
$ 829
Kiwi
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4:55 PM - 10:20 AM
United Airlines
1 Stops
12h 40m
DEN - SOF
$ 841
Kiwi
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How to find the cheapest flight from Denver (DEN) to Sofia (SOF)

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