Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Colorado to Bulgaria from $771

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Colorado to Bulgaria departing on 11/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Colorado to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
4:15 pm - 6:20 pm
DEN
-
SOF
17h 05m
1 stop
Lufthansa Logo
1:55 pm - 2:30 pm
SOF
-
DEN
33h 35m
1 stop
$771Lufthansa
Thu, Nov 5 - Mon, Nov 9
Lufthansa Logo
4:15 pm - 6:20 pm
DEN
-
SOF
17h 05m
1 stop
Lufthansa Logo
1:55 pm - 2:30 pm
SOF
-
DEN
33h 35m
1 stop
$781Lufthansa
Thu, Nov 5 - Mon, Nov 9
Lufthansa Logo
4:15 pm - 6:20 pm
DEN
-
SOF
17h 05m
1 stop
Lufthansa Logo
1:55 pm - 2:30 pm
SOF
-
DEN
33h 35m
1 stop
$785Lufthansa
Thu, Nov 5 - Mon, Nov 9
Lufthansa Logo
4:15 pm - 11:15 pm
DEN
-
SOF
22h 00m
1 stop
Lufthansa Logo
7:25 pm - 1:45 pm
SOF
-
DEN
27h 20m
1 stop
$793Lufthansa
Sun, Aug 2 - Tue, Aug 18
Lufthansa Logo
4:15 pm - 11:15 pm
DEN
-
SOF
22h 00m
1 stop
Lufthansa Logo
12:55 pm - 1:45 pm
SOF
-
DEN
33h 50m
1 stop
$794Lufthansa
Sun, Aug 2 - Tue, Aug 18
Lufthansa Logo
4:00 pm - 6:20 pm
DEN
-
SOF
17h 20m
2 stops
Lufthansa Logo
1:55 pm - 2:30 pm
SOF
-
DEN
33h 35m
1 stop
$799Lufthansa
Thu, Nov 5 - Mon, Nov 9
United Airlines Logo
1:25 pm - 1:15 pm
DEN
-
SOF
14h 50m
2 stops
United Airlines Logo
1:55 pm - 2:30 pm
SOF
-
DEN
33h 35m
1 stop
$803United Airlines
Thu, Nov 5 - Mon, Nov 9
Multiple Airlines Logo
4:15 pm - 11:15 pm
DEN
-
SOF
22h 00m
1 stop
Multiple Airlines Logo
7:25 pm - 1:45 pm
SOF
-
DEN
27h 20m
1 stop
$808Multiple Airlines
Sun, Aug 2 - Tue, Aug 18
Multiple Airlines Logo
4:15 pm - 11:15 pm
DEN
-
SOF
22h 00m
1 stop
Multiple Airlines Logo
7:25 pm - 1:45 pm
SOF
-
DEN
27h 20m
1 stop
$809Multiple Airlines
Sun, Aug 2 - Tue, Aug 18
United Airlines Logo
6:13 am - 12:10 pm
DEN
-
SOF
20h 57m
2 stops
United Airlines Logo
12:55 pm - 1:45 pm
SOF
-
DEN
33h 50m
1 stop
$813United Airlines
Sun, Aug 2 - Tue, Aug 18

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Lufthansa flights from Colorado to Bulgaria

Our best Lufthansa deals on Colorado to Bulgaria flight tickets
Lufthansa
Nov 5
DEN4:15 pmDenver Intl
17h 05m
1 stop
SOF6:20 pmSofia
Nov 9
SOF1:55 pmSofia
33h 35m
1 stop
DEN2:30 pmDenver Intl
$771
Lufthansa
Nov 5
DEN4:15 pmDenver Intl
17h 05m
1 stop
SOF6:20 pmSofia
Nov 9
SOF1:55 pmSofia
33h 35m
1 stop
DEN2:30 pmDenver Intl
$781
Lufthansa
Nov 5
DEN4:15 pmDenver Intl
17h 05m
1 stop
SOF6:20 pmSofia
Nov 9
SOF1:55 pmSofia
33h 35m
1 stop
DEN2:30 pmDenver Intl
$785

United Airlines flights from Colorado to Bulgaria

Our best United Airlines deals on Colorado to Bulgaria flight tickets
United Airlines
Nov 5
DEN1:25 pmDenver Intl
14h 50m
2 stops
SOF1:15 pmSofia
Nov 9
SOF1:55 pmSofia
33h 35m
1 stop
DEN2:30 pmDenver Intl
$803
United Airlines
Aug 2
DEN6:13 amDenver Intl
20h 57m
2 stops
SOF12:10 pmSofia
Aug 18
SOF12:55 pmSofia
33h 50m
1 stop
DEN1:45 pmDenver Intl
$813
United Airlines
Aug 2
DEN4:15 pmDenver Intl
22h 00m
1 stop
SOF11:15 pmSofia
Aug 18
SOF2:10 pmSofia
38h 35m
2 stops
DEN7:45 pmDenver Intl
$827

momondo Fare Finder

 
Customize your flight search to find flights from Colorado to Bulgaria 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 June 26, 2026.
Use the filters below to find and compare flights from Colorado to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 11/5

4:15 pm-6:20 pm

1 stop17h 05m

Sofia

Mon 11/9

1:55 pm-2:30 pm

1 stop33h 35m

$771

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 11/5

4:15 pm-6:20 pm

1 stop17h 05m

Sofia

Mon 11/9

1:55 pm-2:30 pm

1 stop33h 35m

$781

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 11/5

4:15 pm-6:20 pm

1 stop17h 05m

Sofia

Mon 11/9

1:55 pm-2:30 pm

1 stop33h 35m

$785

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 8/2

4:15 pm-11:15 pm

1 stop22h 00m

Sofia

Tue 8/18

7:25 pm-1:45 pm

1 stop27h 20m

$793

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 8/2

4:15 pm-11:15 pm

1 stop22h 00m

Sofia

Tue 8/18

12:55 pm-1:45 pm

1 stop33h 50m

$794

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 11/5

4:00 pm-6:20 pm

2 stops17h 20m

Sofia

Mon 11/9

1:55 pm-2:30 pm

1 stop33h 35m

$799
Quickest round-trip

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 11/5

1:25 pm-1:15 pm

2 stops14h 50m

Sofia

Mon 11/9

1:55 pm-2:30 pm

1 stop33h 35m

$803

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 8/2

4:15 pm-11:15 pm

1 stop22h 00m

Sofia

Tue 8/18

7:25 pm-1:45 pm

1 stop27h 20m

$808

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 8/2

4:15 pm-11:15 pm

1 stop22h 00m

Sofia

Tue 8/18

7:25 pm-1:45 pm

1 stop27h 20m

$809

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 8/2

6:13 am-12:10 pm

2 stops20h 57m

Sofia

Tue 8/18

12:55 pm-1:45 pm

1 stop33h 50m

$813

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Bulgaria from

How to get the cheapest flight ticket from Colorado to Bulgaria

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 Bulgaria?

If you aren’t able to travel to Bulgaria during the month of August, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $567.

How far in advance should I book a flight from Colorado to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $775 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Colorado for as low as $683 on momondo.

Can stopping save me money on Colorado to Bulgaria flights?

You could potentially save up to 13% on your flight if you consider stops on a Colorado to Bulgaria flight.

Cheap Colorado to Bulgaria flight deals and tips

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

Fastest flight time

14h 55m

Direct flights

None
The fastest flight from Colorado to Bulgaria takes 14h 55m
There are no direct flights from Colorado to Bulgaria. There are no popular flight routes from Colorado to Bulgaria.
Search flight deals

Frequently asked questions about flying from Colorado to Bulgaria

  • When did momondo last update prices for flights from Colorado to Bulgaria?

    Prices for flights from Colorado to Bulgaria are updated daily.

  • How many operators does momondo search for flights from Colorado to Bulgaria?

  • How old do you have to be to fly from Colorado to Bulgaria?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Colorado to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The necessary travel and health documents for your Bulgaria trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Colorado to Bulgaria

Compare and see reviews for airlines that fly from Colorado to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Turkish AirlinesPriceFrom $568Free CancellationRating
7.4
4,421 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $634Free CancellationRating
6.8
8,094 reviews
Search Lufthansa flights
United AirlinesPriceFrom $686Free CancellationRating
7.4
9,893 reviews
Search United Airlines flights

Why use momondo?

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

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 Colorado to Bulgaria for you.

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

Yes. All flights to Bulgaria from Colorado on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Bulgaria from Colorado.

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

Price alerts on flights to Bulgaria from Colorado are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Bulgaria trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 7/26
Sun 8/2
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Popular cities in Bulgaria

Popular flights according to clicks in the last 7 days on momondo
Flights to Sofiafrom $517
Flights to Varnafrom $699
Flights to Burgasfrom $751
Flights to Plovdivfrom $1,586