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Sofia

$366+ Cheap flights from Breckenridge, CO to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOF
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
1 adult, Economy
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Cheap flight deals from Breckenridge to Sofia

Cheapest flights from Breckenridge to Sofia
Explore the most affordable flight options available from Breckenridge to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 17, 2026.

This Justfly.com deal was found by Cheapflights users on 2/14. 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 3/245:20 pm
DEN
-
SOF
1 stop21h 25m
Lufthansa
Tue 4/76:10 am
SOF
-
DEN
1 stop18h 30m
Lufthansa
Deal found 2/14$564
This Gotogate deal was found by Cheapflights users on 2/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/14:05 pm
DEN
-
SOF
1 stop21h 55m
Lufthansa
Wed 4/86:20 am
SOF
-
DEN
1 stop18h 20m
Lufthansa
Deal found 2/15$567
This KAYAK deal was found by Cheapflights users on 2/15. 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 4/286:40 pm
DEN
-
SOF
1 stop16h 50m
British Airways
Wed 5/69:25 pm
SOF
-
DEN
1 stop28h 05m
British Airways
Deal found 2/15$572
This KAYAK deal was found by Cheapflights users on 2/15. 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 2/15$577
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/259:20 pm
DEN
-
SOF
1 stop13h 00m
United Airlines
Wed 4/86:20 am
SOF
-
DEN
1 stop18h 20m
United Airlines
Deal found 2/15$579
This United Airlines deal was found by Cheapflights users on 2/15. 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 stop13h 00m
United Airlines
Thu 4/96:10 am
SOF
-
DEN
1 stop17h 10m
United Airlines
Deal found 2/15$581
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Sun 4/268:25 pm
DEN
-
SOF
1 stop17h 35m
United Airlines
Wed 5/66:20 am
SOF
-
DEN
2 stops21h 40m
United Airlines
Deal found 2/15$582
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/2311:15 am
DEN
-
SOF
2 stops23h 05m
United Airlines
Tue 4/76:10 am
SOF
-
DEN
1 stop18h 30m
United Airlines
Deal found 2/15$584
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/237:45 am
DEN
-
SOF
2 stops26h 35m
United Airlines
Fri 4/106:10 am
SOF
-
DEN
1 stop17h 10m
United Airlines
Deal found 2/15$585
This KAYAK deal was found by Cheapflights users on 2/15. 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 3/245:20 pm
DEN
-
SOF
1 stop21h 25m
Lufthansa
Fri 4/106:10 am
SOF
-
DEN
1 stop17h 10m
Lufthansa
Deal found 2/15$586
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub 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
Multiple Airlines
Tue 4/76:10 am
SOF
-
DEN
1 stop18h 30m
Multiple Airlines
Deal found 2/15$587
This United Airlines deal was found by Cheapflights users on 2/15. 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 3/259:20 pm
DEN
-
SOF
1 stop17h 25m
United Airlines
Thu 4/92:10 pm
SOF
-
DEN
2 stops18h 34m
United Airlines
Deal found 2/15$589

Find flight deals from Breckenridge to Sofia

Keep the following information in mind while searching for Breckenridge to Sofia flight deals. Data was last updated February 17, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$564
(Justfly.com)

One-way from

$366
(KLM)

Popular in

December

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 Sofia
Search Deals
One-way flight from Breckenridge to Sofia
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($3 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 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 Sofia 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 17, 2026.
Use the filters below to find and compare flights from Breckenridge to Sofia that are best for you.

Fly from

Breckenridge

Fly to

Sofia

Route

Depart

Return

Price

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 4/29

4:05 pm-11:00 pm

1 stop21h 55m

Sofia

Tue 5/5

6:10 am-3:40 pm

1 stop18h 30m

$579

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-10:45 pm

1 stop21h 25m

Sofia

Tue 4/7

6:10 am-3:40 pm

1 stop18h 30m

$579

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 3/25

9:20 pm-10:45 pm

1 stop17h 25m

Sofia

Tue 4/7

6:10 am-3:40 pm

1 stop18h 30m

$579

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 3/23

9:20 pm-10:45 pm

1 stop17h 25m

Sofia

Wed 4/8

6:20 am-1:35 pm

1 stop16h 15m

$579

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 3/24

5:20 pm-10:45 pm

1 stop21h 25m

Sofia

Fri 4/10

6:10 am-2:20 pm

1 stop17h 10m

$581

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-6:20 pm

1 stop17h 00m

Sofia

Thu 4/9

6:10 am-2:20 pm

1 stop17h 10m

$581

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-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

Fri 4/10

6:10 am-2:20 pm

1 stop17h 10m

$581

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 13 results
1
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Best time to book a flight from Breckenridge to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia 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 Sofia

How far ahead should I book a flight from Breckenridge to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from Breckenridge to Sofia. Price data was last updated on February 13, 2026.

The price you pay for your flight from Breckenridge to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 51 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Breckenridge to Sofia (average of $501). Flying from Breckenridge to Sofia 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 Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated February 17, 2026.
Read through reviews of airlines operating flights from Breckenridge to Sofia, such as United Airlines, Turkish Airlines, and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,308 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
9,308 reviews
United Airlines
7.4
Good
9,308 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
4,219 reviews
United Airlines
7.4
Good
9,308 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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
7,787 reviews
United Airlines
7.4
Good
9,308 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Entertainment

7.1

Overall

7.4

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 Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Breckenridge?

    Sofia (SOF) is the airport you will fly into if you book a flight from Breckenridge to Sofia. You should not have trouble finding flights to Sofia from Breckenridge; the airport handles an average of 0 inbound flights from Breckenridge per day. You should also have plenty of airline options to choose from since 3 airlines have flights to the Sofia airport from Breckenridge. It is only a 4.2 mi journey from Sofia (SOF) to Sofia’s city center.

  • How long is the flight from Breckenridge to Sofia?

    A quick flight from Breckenridge to Sofia can take about 16h 50m. Lufthansa provides one of the quickest options available for as low as $572. Airlines will cover a distance of 5871 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Breckenridge to Sofia 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 Sofia?

    Currently, August is the cheapest month in which you can book a flight from Breckenridge to Sofia (average of $501). Flying from Breckenridge to Sofia 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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Alternative routes for Breckenridge to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Sofia flights
Grand Junction to Sofia flights

Top 3 airlines flying from Breckenridge to Sofia

Discover the top 3 airlines that operate flights from Breckenridge to Sofia. 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 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$535Average$640FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$616Average$982FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$686Average$957FlexibilityNo cancel feeOn-time69%

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