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Cheap flights from Sofia to Colorado from $668

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Colorado departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Sofia to Colorado

Cheap round-trip flights

United Airlines Logo
6:20 am - 7:38 pmSOF-DEN
22h 18m2 stops
United Airlines Logo
3:50 pm - 5:50 pmDEN-SOF
17h 00m1 stop
$759United Airlines
Find Deal
mar., sep. 16 - mar., oct. 7
Lufthansa Logo
6:00 am - 1:45 pmSOF-DEN
16h 45m1 stop
Lufthansa Logo
5:59 pm - 10:50 pmDEN-SOF
19h 51m1 stop
$766Lufthansa
Find Deal
mar., sep. 16 - mar., oct. 7
Lufthansa Logo
7:25 pm - 1:45 pmSOF-DEN
27h 20m1 stop
Lufthansa Logo
8:25 pm - 6:40 pmDEN-SOF
13h 15m1 stop
$810Lufthansa
Find Deal
sáb., ago. 16 - sáb., ago. 23
Lufthansa Logo
7:25 pm - 1:25 pmSOF-DEN
27h 00m2 stops
Lufthansa Logo
8:25 pm - 11:00 pmDEN-SOF
17h 35m1 stop
$828Lufthansa
Find Deal
sáb., ago. 16 - sáb., ago. 23
United Airlines Logo
1:50 pm - 7:43 pmSOF-ASE
38h 53m2 stops
United Airlines Logo
7:00 am - 10:50 pmASE-SOF
30h 50m2 stops
$846United Airlines
Find Deal
lun., ago. 25 - mar., may. 26
Lufthansa Logo
7:25 pm - 1:25 pmSOF-DEN
27h 00m2 stops
Lufthansa Logo
3:50 pm - 6:40 pmDEN-SOF
17h 50m2 stops
$855Lufthansa
Find Deal
sáb., ago. 16 - sáb., ago. 23
United Airlines Logo
1:50 pm - 7:43 pmSOF-ASE
38h 53m2 stops
United Airlines Logo
6:00 pm - 5:55 pmASE-SOF
38h 55m2 stops
$863United Airlines
Find Deal
lun., ago. 25 - sáb., may. 23
United Airlines Logo
2:05 pm - 8:06 pmSOF-ASE
39h 01m2 stops
United Airlines Logo
7:00 am - 5:55 pmASE-SOF
25h 55m2 stops
$875United Airlines
Find Deal
sáb., ago. 23 - mar., may. 26
United Airlines Logo
2:05 pm - 8:06 pmSOF-ASE
39h 01m2 stops
United Airlines Logo
6:00 pm - 5:55 pmASE-SOF
38h 55m2 stops
$891United Airlines
Find Deal
sáb., ago. 23 - sáb., may. 23
Logo
5:50 am - 5:55 pmSOF-DEN
21h 05m2 stops
Logo
4:40 pm - 1:10 amDEN-SOF
23h 30m3 stops
$1,059
Find Deal
mar., sep. 16 - mar., oct. 7

Lufthansa flights from Sofia to Colorado

Our best Lufthansa deals on Sofia to Colorado flight tickets
Lufthansa
Sep 16
SOF6:00 amSofia
16h 45m
1 stop
DEN1:45 pmDenver Intl
Oct 7
DEN5:59 pmDenver Intl
19h 51m
1 stop
SOF10:50 pmSofia
$766
Find similar
Lufthansa
Aug 16
SOF7:25 pmSofia
27h 20m
1 stop
DEN1:45 pmDenver Intl
Aug 23
DEN8:25 pmDenver Intl
13h 15m
1 stop
SOF6:40 pmSofia
$810
Find similar
Lufthansa
Aug 16
SOF7:25 pmSofia
27h 00m
2 stops
DEN1:25 pmDenver Intl
Aug 23
DEN8:25 pmDenver Intl
17h 35m
1 stop
SOF11:00 pmSofia
$828
Find similar

United Airlines flights from Sofia to Colorado

Our best United Airlines deals on Sofia to Colorado flight tickets
United Airlines
Sep 16
SOF6:20 amSofia
22h 18m
2 stops
DEN7:38 pmDenver Intl
Oct 7
DEN3:50 pmDenver Intl
17h 00m
1 stop
SOF5:50 pmSofia
$759
Find similar
United Airlines
Aug 25
SOF1:50 pmSofia
38h 53m
2 stops
ASE7:43 pmAspen Pitkin County
May 26
ASE7:00 amAspen Pitkin County
30h 50m
2 stops
SOF10:50 pmSofia
$846
Find similar
United Airlines
Aug 25
SOF1:50 pmSofia
38h 53m
2 stops
ASE7:43 pmAspen Pitkin County
May 23
ASE6:00 pmAspen Pitkin County
38h 55m
2 stops
SOF5:55 pmSofia
$863
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Colorado that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated julio 31, 2025.
Use the filters below to find and compare flights from Sofia to Colorado that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaDenver

SOF - DEN

SOFDEN

Sofia

mar. 9/16

6:20 am-7:38 pm

2 stops22h 18m

Denver Intl

mar. 10/7

3:50 pm-5:50 pm

1 stop17h 00m

$759

SofiaDenver

SOF - DEN

SOFDEN

Sofia

mar. 9/16

6:00 am-1:45 pm

1 stop16h 45m

Denver Intl

mar. 10/7

5:59 pm-10:50 pm

1 stop19h 51m

$766

SofiaDenver

SOF - DEN

SOFDEN

Sofia

sáb. 8/16

7:25 pm-1:45 pm

1 stop27h 20m

Denver Intl

sáb. 8/23

8:25 pm-6:40 pm

1 stop13h 15m

$810

SofiaDenver

SOF - DEN

SOFDEN

Sofia

sáb. 8/16

7:25 pm-1:25 pm

2 stops27h 00m

Denver Intl

sáb. 8/23

8:25 pm-11:00 pm

1 stop17h 35m

$828

SofiaAspen

SOF - ASE

SOFASE

Sofia

lun. 8/25

1:50 pm-7:43 pm

2 stops38h 53m

Aspen Pitkin County

mar. 5/26

7:00 am-10:50 pm

2 stops30h 50m

$846

SofiaDenver

SOF - DEN

SOFDEN

Sofia

sáb. 8/16

7:25 pm-1:25 pm

2 stops27h 00m

Denver Intl

sáb. 8/23

3:50 pm-6:40 pm

2 stops17h 50m

$855

SofiaAspen

SOF - ASE

SOFASE

Sofia

lun. 8/25

1:50 pm-7:43 pm

2 stops38h 53m

Aspen Pitkin County

sáb. 5/23

6:00 pm-5:55 pm

2 stops38h 55m

$863

SofiaAspen

SOF - ASE

SOFASE

Sofia

sáb. 8/23

2:05 pm-8:06 pm

2 stops39h 01m

Aspen Pitkin County

mar. 5/26

7:00 am-5:55 pm

2 stops25h 55m

$875

SofiaAspen

SOF - ASE

SOFASE

Sofia

sáb. 8/23

2:05 pm-8:06 pm

2 stops39h 01m

Aspen Pitkin County

sáb. 5/23

6:00 pm-5:55 pm

2 stops38h 55m

$891

SofiaDenver

SOF - DEN

SOFDEN

Sofia

mar. 9/16

5:50 am-5:55 pm

2 stops21h 05m

Denver Intl

mar. 10/7

4:40 pm-1:10 am

3 stops23h 30m

$1,059

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 resultsSorted by cheapest first
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See travel insights to Colorado from

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

What is the cheapest month to fly to Colorado?

The month of November is, on average, the cheapest month to fly to Colorado from Sofia, with most prices found around $652. The month of April is another great option to travel to Colorado, with average flight prices from Sofia averaging around $709.

What is the cheapest day to depart on your flight to Colorado?

The cheapest day to depart from Sofia to Colorado is on a Friday when prices can be found for as low as $778. On the other hand, Thursday is the most expensive day to depart from Sofia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $972.

What is the cheapest time of day to depart on your flight to Colorado?

The cheapest time of day to fly to Colorado is in the evening when flights can be purchased for as low as $691. In the morning is when there is more demand to fly to Colorado, so prices are often more expensive at around $816 per ticket.

Cheap Sofia to Colorado flight deals and tips

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

Best Price Found

$668

Fastest flight time

16h 30m

Direct flights

None

Airports in Colorado

2 airports
The best one-way flight to Colorado from Sofia in the past 72 hours is $668. The best round-trip flight deal from Sofia to Colorado found on momondo in the last 72 hours is $759.
The fastest flight from Sofia to Colorado takes 16h 30m
There are no direct flights from Sofia to Colorado. Popular non-direct routes for this connection are Sofia Airport - Denver Intl Airport and Sofia Airport - Aspen Pitkin County Airport.
There are 2 airports near Colorado: Aspen Pitkin County (ASE), Denver Intl (DEN)
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?

  • 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 AirlinesPriceFrom $639Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $718Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
LufthansaPriceFrom $737Free CancellationRating
6.8
7,275 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.

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