Denver to Sofia flights in December 2026

Saved fares include round trips from $1,000 and one-way flights from $690 for one adult in economy. Fare observations: October 29, 2026.

Departure airports: Denver (DEN). Destination: Sofia (SOF).

DEN → SOF · December 2026 · One adult in economy

Travel dates Airline Stops Total (USD)
Dec 1, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 1, 2026 – Dec 4, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 1, 2026 – Dec 8, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 2, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 2, 2026 – Dec 5, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 2, 2026 – Dec 9, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 3, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 3, 2026 – Dec 6, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 3, 2026 – Dec 10, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 4, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 4, 2026 – Dec 7, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 4, 2026 – Dec 11, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 5, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 5, 2026 – Dec 8, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 5, 2026 – Dec 12, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 6, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 6, 2026 – Dec 9, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 6, 2026 – Dec 13, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 7, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 7, 2026 – Dec 10, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 7, 2026 – Dec 14, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 8, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 8, 2026 – Dec 11, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 8, 2026 – Dec 15, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 9, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 9, 2026 – Dec 12, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 9, 2026 – Dec 16, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 10, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 10, 2026 – Dec 13, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 10, 2026 – Dec 17, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 11, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 11, 2026 – Dec 14, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 11, 2026 – Dec 18, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 12, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 12, 2026 – Dec 15, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 12, 2026 – Dec 19, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 13, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 13, 2026 – Dec 16, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 13, 2026 – Dec 20, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 14, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 14, 2026 – Dec 17, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1000.00
Dec 14, 2026 – Dec 21, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 15, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 15, 2026 – Dec 18, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 15, 2026 – Dec 22, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 16, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 16, 2026 – Dec 19, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 16, 2026 – Dec 23, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 17, 2026 · One way Turkish Airlines Up to 1 stop each way $690.00
Dec 17, 2026 – Dec 20, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 17, 2026 – Dec 24, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1114.40
Dec 18, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 18, 2026 – Dec 21, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 18, 2026 – Dec 25, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 19, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 19, 2026 – Dec 22, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 19, 2026 – Dec 26, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 20, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 20, 2026 – Dec 23, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 20, 2026 – Dec 27, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 21, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 21, 2026 – Dec 24, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 21, 2026 – Dec 28, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 22, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 22, 2026 – Dec 25, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 22, 2026 – Dec 27, 2026 · 5 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 22, 2026 – Dec 29, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 23, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 23, 2026 – Dec 26, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 23, 2026 – Dec 30, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 24, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 24, 2026 – Dec 27, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 24, 2026 – Dec 31, 2026 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 25, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 25, 2026 – Dec 28, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 25, 2026 – Jan 1, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 26, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 26, 2026 – Dec 29, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 26, 2026 – Jan 2, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 27, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 27, 2026 – Dec 30, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 27, 2026 – Jan 3, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 28, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 28, 2026 – Dec 31, 2026 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 28, 2026 – Jan 4, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 29, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 29, 2026 – Jan 1, 2027 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 29, 2026 – Jan 5, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 30, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 30, 2026 – Jan 2, 2027 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 30, 2026 – Jan 6, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1105.60
Dec 31, 2026 · One way Turkish Airlines Up to 1 stop each way $841.80
Dec 31, 2026 – Jan 3, 2027 · 3 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1220.00
Dec 31, 2026 – Jan 7, 2027 · 7 nights Turkish Airlines / Lufthansa Up to 1 stop each way $1105.60

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