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Bulgaria

$564+ Cheap flights from Breckenridge, CO to Bulgaria

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOF
Mar 15 — Mar 221
Sun 3/15
Sun 3/22
1 adult, Economy
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Cheap flight deals from Breckenridge to Bulgaria

Cheapest flights from Breckenridge to Bulgaria
Explore the most affordable flight options available from Breckenridge to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 13, 2026.

This Justfly.com deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:54 pm
DEN
-
SOF
2 stops16h 26m
Lufthansa
Tue 4/76:10 am
SOF
-
DEN
1 stop18h 30m
Lufthansa
Deal found 2/13$564
This KAYAK deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:25 pm
DEN
-
SOF
1 stop17h 45m
British Airways
Wed 4/89:25 pm
SOF
-
DEN
1 stop28h 05m
British Airways
Deal found 2/13$577
This Lufthansa deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:20 pm
DEN
-
SOF
1 stop17h 00m
Lufthansa
Wed 4/86:20 am
SOF
-
DEN
1 stop18h 20m
Lufthansa
Deal found 2/13$579
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:20 pm
DEN
-
SOF
1 stop21h 25m
United Airlines
Thu 4/96:10 am
SOF
-
DEN
1 stop17h 10m
United Airlines
Deal found 2/13$581
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:20 pm
DEN
-
SOF
1 stop17h 25m
United Airlines
Tue 4/76:10 am
SOF
-
DEN
2 stops22h 45m
United Airlines
Deal found 2/13$582
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:10 pm
DEN
-
SOF
2 stops23h 35m
United Airlines
Wed 4/86:20 am
SOF
-
DEN
1 stop18h 20m
United Airlines
Deal found 2/13$584
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/233:10 pm
DEN
-
SOF
2 stops19h 10m
United Airlines
Thu 4/96:10 am
SOF
-
DEN
1 stop17h 10m
United Airlines
Deal found 2/13$585
This KAYAK deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:20 pm
DEN
-
SOF
1 stop17h 00m
Lufthansa
Fri 4/106:10 am
SOF
-
DEN
1 stop17h 10m
Lufthansa
Deal found 2/13$586
This United Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/119:51 am
DEN
-
SOF
2 stops28h 54m
United Airlines
Wed 3/186:10 am
SOF
-
DEN
1 stop18h 50m
United Airlines
Deal found 2/11$587
This Air Canada deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:25 pm
DEN
-
SOF
2 stops20h 55m
Air Canada
Wed 4/86:10 am
SOF
-
DEN
2 stops46h 17m
Air Canada
Deal found 2/13$589
This Turkish Airlines deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/43:20 pm
DEN
-
VAR
2 stops32h 50m
Turkish Airlines
Sun 3/810:00 am
VAR
-
DEN
2 stops36h 48m
Turkish Airlines
Deal found 2/11$1,090

Find flight deals from Breckenridge to Bulgaria

Keep the following information in mind while searching for Breckenridge to Bulgaria flight deals. Data was last updated February 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$568
(FlightHub)

Popular in

July

Cheapest in

April

Average price

$791
Provider with most accurate pricing for Denver Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sofia flights.
Search Deals
From Breckenridge to Bulgaria
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($155 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Breckenridge 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, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
Use the filters below to find and compare flights from Breckenridge to Bulgaria that are best for you.

Fly from

Breckenridge

Fly to

Bulgaria

Route

Depart

Return

Price

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 3/25

5:20 pm-10:45 pm

1 stop21h 25m

Sofia

Wed 4/8

6:20 am-3:40 pm

1 stop18h 20m

$579

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 3/23

5:20 pm-6:20 pm

1 stop17h 00m

Sofia

Tue 4/7

6:10 am-3:40 pm

1 stop18h 30m

$579

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 3/23

5:20 pm-10:45 pm

1 stop21h 25m

Sofia

Thu 4/9

6:10 am-2:20 pm

1 stop17h 10m

$581

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 3/24

5:20 pm-10:45 pm

1 stop21h 25m

Sofia

Thu 4/9

6:10 am-2:20 pm

1 stop17h 10m

$581

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 3/23

9:20 pm-10:45 pm

1 stop17h 25m

Sofia

Tue 4/7

6:10 am-7:55 pm

2 stops22h 45m

$582

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 3/24

7:45 am-1:15 pm

2 stops21h 30m

Sofia

Wed 4/8

6:20 am-1:35 pm

1 stop16h 15m

$584

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 3/11

9:51 am-10:45 pm

2 stops28h 54m

Sofia

Wed 3/18

6:10 am-5:00 pm

1 stop18h 50m

$587

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 3/25

9:20 pm-10:45 pm

1 stop17h 25m

Sofia

Thu 4/9

6:10 am-11:44 pm

2 stops26h 34m

$591

DenverVarna

DEN - VAR

DENVAR

Denver Intl

Wed 3/4

3:20 pm-9:10 am

2 stops32h 50m

Varna

Sun 3/8

10:00 am-1:48 pm

2 stops36h 48m

$1,090

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/13

Best time to book a flight from Breckenridge to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Breckenridge with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Breckenridge to Bulgaria

What is the cheapest month to book a flight from Breckenridge to Bulgaria?

Currently, August is the cheapest month in which you can book a flight from Breckenridge to Bulgaria (average of $501). Flying from Breckenridge to Bulgaria in December is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated February 13, 2026.
Get a feel of what it's like to fly with United Airlines, Turkish Airlines, and Lufthansa from Breckenridge to Bulgaria by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,289 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,289 reviews
United Airlines
7.4
Good
9,289 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Turkish Airlines
7.3
Good
4,216 reviews
United Airlines
7.4
Good
9,289 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Lufthansa
6.8
Okay
7,784 reviews
United Airlines
7.4
Good
9,289 reviews

Overall

7.4

Boarding

7.7

Food

6.6

Comfort

7.3

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Breckenridge to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Breckenridge to Bulgaria?

    Airlines like United Airlines and Turkish Airlines fly from Breckenridge to Bulgaria in about 14h 50m. The time it takes to get you to your destination can typically vary by up to 14h 04m. The distance between Breckenridge and Bulgaria is about 5871 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Breckenridge to Bulgaria that include hotel bookings?

    Yes. In addition to deals on Breckenridge to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Breckenridge to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Breckenridge to Bulgaria.

  • Can I find deals for business class flights from Breckenridge to Bulgaria?

    Yes. Cheapflights offers flight deals from Breckenridge to Bulgaria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Breckenridge to Bulgaria?

    Currently, August is the cheapest month in which you can book a flight from Breckenridge to Bulgaria (average of $501). Flying from Breckenridge to Bulgaria in December is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Breckenridge to Bulgaria

Discover the top 3 airlines that operate flights from Breckenridge to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$535Average$778FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$616Average$1,026FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$686Average$982FlexibilityNo cancel feeOn-time69%

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