Find Deals on Flights from Bulgaria to Denver International

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Bulgaria to Denver International

(Round-trip)
Depart: Mon May 15 2017 Return: Mon Jun 26 2017 Trip spans 43 days
KLM
KLM
SOF
6:40p
DEN
10:08p
27h 28m
2 stops
DEN
1:45p
SOF
12:55a
35h 10m
2 stops
Depart: Wed Apr 26 2017 Return: Mon Jun 19 2017 Trip spans 55 days
American Airlines
American Airlines
SOF
10:25a
DEN
10:30p
36h 05m
1 stop
DEN
3:30p
SOF
12:25a
32h 55m
2 stops
Depart: Tue Aug 22 2017 Return: Tue Oct 10 2017 Trip spans 50 days
Lufthansa
Lufthansa
SOF
2:05a
DEN
7:25p
17h 20m
1 stop
DEN
12:10p
SOF
9:40a
21h 30m
1 stop
Depart: Sat Apr 29 2017 Return: Wed Jun 21 2017 Trip spans 54 days
British Airways
British Airways
SOF
10:05a
DEN
1:03p
50h 58m
2 stops
DEN
6:30a
SOF
12:25a
41h 55m
2 stops
Depart: Mon Apr 24 2017 Return: Mon Jun 19 2017 Trip spans 57 days
Lufthansa
Lufthansa
SOF
2:05a
DEN
7:30p
17h 25m
1 stop
DEN
12:10p
SOF
9:35a
21h 25m
1 stop
Depart: Sun Apr 30 2017 Return: Wed Jun 21 2017 Trip spans 53 days
KLM
KLM
SOF
3:10a
DEN
12:14a
21h 04m
2 stops
DEN
5:25a
SOF
12:55a
19h 30m
2 stops
Depart: Tue Apr 25 2017 Return: Mon Jun 19 2017 Trip spans 56 days
Lufthansa
Lufthansa
SOF
2:05a
DEN
7:30p
17h 25m
1 stop
DEN
12:10p
SOF
9:35a
21h 25m
1 stop
Depart: Thu Apr 27 2017 Return: Mon Jun 19 2017 Trip spans 54 days
Lufthansa
Lufthansa
SOF
2:05a
DEN
7:30p
17h 25m
1 stop
DEN
12:10p
SOF
9:35a
21h 25m
1 stop
Depart: Fri Apr 28 2017 Return: Mon Jun 19 2017 Trip spans 53 days
Lufthansa
Lufthansa
SOF
2:05a
DEN
7:30p
17h 25m
1 stop
DEN
12:10p
SOF
9:35a
21h 25m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

Sofia
$399
Destination

Denver
$399