What airlines fly to Colorado?

United Airlines, Lufthansa and Turkish Airlines are the top three most popular airlines that fly to Colorado from Sofia according to our data. United Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Colorado. Keep in mind that there are 3 different airlines that fly to Colorado on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Sofia to Colorado?

British Airways is the most popular carrier operating from Sofia to Colorado

When did momondo last update prices for flights from Sofia Airport to Colorado?

Prices for flights from Sofia Airport to Colorado are updated daily.

How many operators does momondo search for flights from Sofia Airport to Colorado?

As of February 2026, there are 3 operators available to choose from for flights from Sofia Airport to Colorado.

How old do you have to be to fly from Sofia Airport to Colorado?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Colorado.

What documentation or ID do you need to fly to Colorado?

The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$399 Cheap Flights from Sofia to Colorado in 2026

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Find the cheapest flights from Sofia to Colorado

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:50 pm - 6:25 pm

SOF

DEN

35h 35m

1 stop

8:25 pm - 3:00 pm

DEN

SOF

33h 35m

1 stop

$712Turkish Airlines

Wed, May 6 - Sun, May 10

9:25 pm - 5:39 pm

SOF

DEN

29h 14m

2 stops

6:40 pm - 7:20 pm

DEN

SOF

15h 40m

1 stop

$802British Airways

Wed, May 6 - Sun, May 10

9:25 pm - 9:59 pm

SOF

DEN

33h 34m

2 stops

9:40 am - 11:00 am

DEN

SOF

16h 20m

2 stops

$814Multiple Airlines

Wed, May 6 - Sun, May 10

6:00 am - 4:00 pm

SOF

DEN

19h 00m

1 stop

8:20 pm - 10:45 pm

DEN

SOF

17h 25m

1 stop

$872United Airlines

Thu, Feb 19 - Wed, Feb 25

6:00 am - 4:00 pm

SOF

DEN

19h 00m

1 stop

8:20 pm - 6:20 pm

DEN

SOF

13h 00m

1 stop

$874United Airlines

Thu, Feb 19 - Wed, Feb 25

2:10 pm - 7:00 pm

SOF

DEN

37h 50m

2 stops

4:15 pm - 6:40 pm

DEN

SOF

17h 25m

1 stop

$875United Airlines

Tue, Jun 23 - Tue, Jul 21

2:10 pm - 10:33 am

SOF

DEN

29h 23m

2 stops

4:15 pm - 6:40 pm

DEN

SOF

17h 25m

1 stop

$876United Airlines

Tue, Jun 23 - Tue, Jul 21

2:10 pm - 7:00 pm

SOF

DEN

37h 50m

2 stops

4:15 pm - 6:40 pm

DEN

SOF

17h 25m

1 stop

$877United Airlines

Tue, Jun 23 - Tue, Jul 21

6:00 am - 1:40 pm

SOF

DEN

16h 40m

1 stop

11:44 am - 10:45 pm

DEN

SOF

26h 01m

2 stops

$878United Airlines

Thu, Feb 19 - Wed, Feb 25

6:10 am - 6:50 pm

SOF

DEN

21h 40m

1 stop

4:15 pm - 6:40 pm

DEN

SOF

17h 25m

1 stop

$885United Airlines

Tue, Jun 23 - Tue, Jul 21

United Airlines flights from Sofia to Colorado

Our best United Airlines deals on Sofia to Colorado flight tickets

United Airlines

Feb 19

SOF6:00 amSofia

19h 00m

1 stop

DEN4:00 pmDenver Intl

Feb 25

DEN8:20 pmDenver Intl

17h 25m

1 stop

SOF10:45 pmSofia

$872

United Airlines

Feb 19

SOF6:00 amSofia

19h 00m

1 stop

DEN4:00 pmDenver Intl

Feb 25

DEN8:20 pmDenver Intl

13h 00m

1 stop

SOF6:20 pmSofia

$874

United Airlines

Jun 23

SOF2:10 pmSofia

37h 50m

2 stops

DEN7:00 pmDenver Intl

Jul 21

DEN4:15 pmDenver Intl

17h 25m

1 stop

SOF6:40 pmSofia

$875

Turkish Airlines flights from Sofia to Colorado

Our best Turkish Airlines deals on Sofia to Colorado flight tickets

Turkish Airlines

May 6

SOF3:50 pmSofia

35h 35m

1 stop

DEN6:25 pmDenver Intl

May 10

DEN8:25 pmDenver Intl

33h 35m

1 stop

SOF3:00 pmSofia

$712

Turkish Airlines

Mar 5

SOF4:00 pmSofia

34h 35m

1 stop

DEN5:35 pmDenver Intl

Mar 12

DEN8:20 pmDenver Intl

34h 50m

1 stop

SOF3:10 pmSofia

$994

Turkish Airlines

Feb 20

SOF4:00 pmSofia

34h 35m

1 stop

DEN5:35 pmDenver Intl

Feb 24

DEN7:20 pmDenver Intl

16h 30m

1 stop

SOF8:50 pmSofia

$1,136

Fly from

Fly to

Route

Depart

Return

Price

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Wed 5/6

3:50 pm-6:25 pm

1 stop35h 35m

Denver Intl

Sun 5/10

8:25 pm-3:00 pm

1 stop33h 35m

$712

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Wed 5/6

9:25 pm-5:39 pm

2 stops29h 14m

Denver Intl

Sun 5/10

6:40 pm-7:20 pm

1 stop15h 40m

$802

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Wed 5/6

9:25 pm-9:59 pm

2 stops33h 34m

Denver Intl

Sun 5/10

9:40 am-11:00 am

2 stops16h 20m

$814

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Thu 2/19

6:00 am-4:00 pm

1 stop19h 00m

Denver Intl

Wed 2/25

8:20 pm-10:45 pm

1 stop17h 25m

$872

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Thu 2/19

6:00 am-4:00 pm

1 stop19h 00m

Denver Intl

Wed 2/25

8:20 pm-6:20 pm

1 stop13h 00m

$874

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Tue 6/23

2:10 pm-7:00 pm

2 stops37h 50m

Denver Intl

Tue 7/21

4:15 pm-6:40 pm

1 stop17h 25m

$875

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Tue 6/23

2:10 pm-10:33 am

2 stops29h 23m

Denver Intl

Tue 7/21

4:15 pm-6:40 pm

1 stop17h 25m

$876

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Tue 6/23

2:10 pm-7:00 pm

2 stops37h 50m

Denver Intl

Tue 7/21

4:15 pm-6:40 pm

1 stop17h 25m

$877

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Thu 2/19

6:00 am-1:40 pm

1 stop16h 40m

Denver Intl

Wed 2/25

11:44 am-10:45 pm

2 stops26h 01m

$878

SofiaDenver

SOF - DEN

SOFDEN

Sofia

Tue 6/23

6:10 am-6:50 pm

1 stop21h 40m

Denver Intl

Tue 7/21

4:15 pm-6:40 pm

1 stop17h 25m

$885

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sofia to Colorado

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Can stopping save me money on Sofia to Colorado flights?

You could potentially save up to 25% on your flight if you consider stops on a Sofia to Colorado flight.

Cheap Sofia to Colorado flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Colorado

Fastest flight time	19h 00m
Direct flights	None

The fastest flight from Sofia to Colorado takes 19h 00m

There are no direct flights from Sofia to Colorado. There are no popular flight routes from Sofia to Colorado.

Search flight deals

When did momondo last update prices for flights from Sofia Airport to Colorado?
Prices for flights from Sofia Airport to Colorado are updated daily.
How many operators does momondo search for flights from Sofia Airport to Colorado?
As of February 2026, there are 3 operators available to choose from for flights from Sofia Airport to Colorado.
How old do you have to be to fly from Sofia Airport to Colorado?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Colorado.
What documentation or ID do you need to fly to Colorado?
The required travel and health documents for your Colorado trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Colorado. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Sofia to Colorado

Compare and see reviews for airlines that fly from Sofia to Colorado with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $704	Free Cancellation	Rating 7.3 4,209 reviews	Search Turkish Airlines flights
United Airlines	PriceFrom $729	Free Cancellation	Rating 7.4 9,245 reviews	Search United Airlines flights
Lufthansa	PriceFrom $767	Free Cancellation	Rating 6.8 7,769 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Sofia to Colorado?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sofia to Colorado for you.

Can I find flights from Sofia to Colorado with flexible booking policies on momondo?

All flight searches from Sofia to Colorado on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Sofia to Colorado?

Once all potential Sofia to Colorado flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Sofia to Colorado right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Sofia to Colorado flights. All you need is a valid email address and we will do the rest; it is that quick and easy.