Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

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

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.
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.

Cheap flights from Denver to Sofia in April , May 2026

28 Apr - 05 May $ 637.00
DEN
Denver
Turkish Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Turkish Airlines
1 STOPS
DEN
Denver
Pick dates
11 Apr - 02 May $ 1,386.00
DEN
Denver
Turkish Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Turkish Airlines
1 STOPS
DEN
Denver
Pick dates
11 Apr - 09 May $ 1,496.00
DEN
Denver
Lufthansa
1 STOPS
SOF
Sofia
SOF
Sofia
Lufthansa
2 STOPS
DEN
Denver
Pick dates

Last minute flights from Denver to Sofia

16 Apr - 30 Apr $ 1,138.00
DEN
Denver
Turkish Airlines
2 STOPS
SOF
Sofia
SOF
Sofia
Turkish Airlines
2 STOPS
DEN
Denver
Pick dates
23 Apr - 30 Apr $ 1,311.00
DEN
Denver
Alaska Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Alaska Airlines
3 STOPS
DEN
Denver
Pick dates
18 Apr - 30 Apr $ 1,311.00
DEN
Denver
Alaska Airlines
1 STOPS
SOF
Sofia
SOF
Sofia
Alaska Airlines
3 STOPS
DEN
Denver
Pick dates

One-way flights to Sofia from Denver

8:25 PM - 6:55 PM
Turkish Airlines
1 Stops
14h 50m
DEN - SOF
$ 551
Kiwi
Pick dates
8:25 PM - 6:55 PM
Turkish Airlines
1 Stops
14h 50m
DEN - SOF
$ 551
Kiwi
Pick dates
8:25 PM - 3:45 PM
United Airlines
1 Stops
13h 15m
DEN - SOF
$ 648
Kiwi
Pick dates

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

Related info for your journey
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.
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.