There are 4 ways to get from Denver to Bulgaria by plane or train
Select an option below to see step-by-step directions and to compare ticket prices and travel times in Rome2Rio's travel planner.
Fly to Sofia Airport
best- Fly from Denver (DEN) to Sofia Airport (SOF)plane DEN - SOF
16h$293–900Fly to Varna Airport
- Fly from Denver (DEN) to Varna Airport (VAR)plane DEN - VAR
17h 43m$390–1,400Fly to Bucharest Otopeni, train
- Fly from Denver (DEN) to Bucharest Otopeni (OTP)plane DEN - OTP
- Take the train from Bucuresti Nord to Rusetrain
19h 58m$308–924Fly to Burgas Airport
- Fly from Denver (DEN) to Burgas Airport (BOJ)plane DEN - BOJ
17h 9m$425–1,472
Denver (DEN) to Sofia Airport (SOF) flights
Comparing Your Travel Options
The cheapest way to get from Denver to Bulgaria is to fly which costs $290 - $900 and takes 16h.
The fastest way to get from Denver to Bulgaria is to fly which takes 16h and costs $290 - $900.
The distance between Denver and Bulgaria is 9510 km.
It takes approximately 16h to get from Denver to Bulgaria, including transfers.
Bulgaria is 9h ahead of Denver. It is currently 9:25 AM in Denver and 6:25 PM in Bulgaria.
There are 2296+ hotels available in Bulgaria.
What companies run services between Denver, CO, USA and Bulgaria?
United Airlines, Lufthansa, and three other airlines fly from Denver (DEN) to Sofia Airport (SOF) 5 times a day.
- Website
- lufthansa.com
Flights from Denver to Sofia Airport via Frankfurt
- Ave. Duration
- 14h 7m
- When
- Every day
- Estimated price
- $300–1,200
Flights from Denver to Sofia Airport via Munich
- Ave. Duration
- 12h 50m
- When
- Every day
- Estimated price
- $300–1,100
Flights from Denver to Sofia Airport via London Heathrow, Munich
- Ave. Duration
- 15h 45m
- When
- Every day
- Estimated price
- $300–1,100
Flights from Denver to Varna Airport via Frankfurt
- Ave. Duration
- 15h 15m
- When
- Monday, Wednesday, and Saturday
- Estimated price
- $390–1,500
Flights from Denver to Bucharest Otopeni via Frankfurt
- Ave. Duration
- 13h 42m
- When
- Every day
- Estimated price
- $300–1,200
Flights from Denver to Bucharest Otopeni via Munich
- Ave. Duration
- 13h
- When
- Monday, Tuesday, Saturday, and Sunday
- Estimated price
- $300–1,100
Flights from Denver to Burgas Airport via Munich
- Ave. Duration
- 16h 7m
- When
- Tuesday
- Estimated price
- $420–1,600
- Website
- united.com
Flights from Denver to Sofia Airport via Frankfurt
- Ave. Duration
- 12h 30m
- When
- Every day
- Estimated price
- $300–1,100
Flights from Denver to Bucharest Otopeni via Frankfurt
- Ave. Duration
- 13h 42m
- When
- Every day
- Estimated price
- $300–1,200
Flights from Denver to Bucharest Otopeni via Munich
- Ave. Duration
- 13h
- When
- Monday, Tuesday, Saturday, and Sunday
- Estimated price
- $300–1,100
- Website
- britishairways.com
Flights from Denver to Sofia Airport via London Heathrow
- Ave. Duration
- 14h 2m
- When
- Tuesday, Thursday, Saturday, and Sunday
- Estimated price
- $290–1,100
Flights from Denver to Bucharest Otopeni via London Heathrow
- Ave. Duration
- 22h 4m
- When
- Every day
- Estimated price
- $290–950
- Website
- turkishairlines.com
Flights from Denver to Sofia Airport via Istanbul
- Ave. Duration
- 16h 25m
- When
- Monday, Wednesday, Friday, and Sunday
- Estimated price
- $350–1,200
Flights from Denver to Varna Airport via Istanbul
- Ave. Duration
- 16h 30m
- When
- Wednesday, Friday, and Sunday
- Estimated price
- $440–1,500
Flights from Denver to Bucharest Otopeni via Istanbul
- Ave. Duration
- 15h 45m
- When
- Monday, Wednesday, Friday, and Sunday
- Estimated price
- $350–1,200
- Website
- hisky.aero
Flights from Denver to Bucharest Otopeni via Paris Charles de Gaulle
- Ave. Duration
- 13h 5m
- When
- Friday
- Estimated price
- $310–1,100
- Website
- tarom.ro
Flights from Denver to Bucharest Otopeni via Rome
- Ave. Duration
- 14h 20m
- When
- Saturday
- Estimated price
- $320–1,200
- Phone
- 0219521
- Website
- Romanian Railways (CFR)
Train from Bucuresti Nord to Ruse
- Ave. Duration
- 2h 33m
- Frequency
- Twice daily
- Estimated price
- $13–15
- Website
- Romanian Railways (CFR)
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