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$592+ Cheap flights from Denver (DEN) to Sofia (SOF)

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOF
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Denver Intl to Sofia are usually found in December or August, booked 82 days in advance, depart on a Thursday or Sunday and return on a Tuesday

Cheap flight deals from Denver to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

May

Cheapest in

December

Average price

$795

Round-trip from

$592
(oojo)
Provider with most accurate pricing for Denver Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Sofia flights.
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High demand for flights, 34% potential price rise
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Best time to find cheap flights, 30% potential price drop
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Average for round-trip flights in November 2024
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From Denver Intl to Sofia
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Find flight deals from Denver to Sofia

Cheapest flights from Denver to Sofia
Explore the most affordable flight options available from Denver to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Justfly.com deal was found by Cheapflights users on 11/18. 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 12/247:35 pmDEN - SOF
1 stop16h 15mTurkish Airlines
Sun 1/53:55 pmSOF - DEN
1 stop34h 45mTurkish Airlines
Deal found 11/18$1,108
This Kiwi.com deal was found by Cheapflights users on 11/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/249:53 amDEN - SOF
2 stops32h 07mMultiple Airlines
Tue 1/79:45 amSOF - DEN
1 stop16h 55mMultiple Airlines
Deal found 11/18$1,361
This Air Canada deal was found by Cheapflights users on 11/18. 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 12/2511:25 amDEN - SOF
2 stops16h 35mAir Canada
Tue 1/76:00 amSOF - DEN
2 stops35h 57mAir Canada
Deal found 11/18$1,590
This United Airlines deal was found by Cheapflights users on 11/18. 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 12/248:20 pmDEN - SOF
1 stop31h 40mUnited Airlines
Wed 1/11:45 pmSOF - DEN
1 stop14h 05mUnited Airlines
Deal found 11/18$1,645
This British Airways deal was found by Cheapflights users on 11/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2412:33 pmDEN - SOF
2 stops16h 37mBritish Airways
Tue 1/76:05 pmSOF - DEN
2 stops34h 11mBritish Airways
Deal found 11/18$1,658
This Lufthansa deal was found by Cheapflights users on 11/18. 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.
Wed 12/255:45 pmDEN - SOF
1 stop19h 40mLufthansa
Thu 1/26:05 amSOF - DEN
1 stop17h 35mLufthansa
Deal found 11/18$1,797
This FlightHub deal was found by Cheapflights users on 11/18. 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.
Tue 12/248:20 pmDEN - SOF
2 stops18h 35mAustrian Airlines
Sun 1/56:45 pmSOF - DEN
2 stops33h 05mAustrian Airlines
Deal found 11/18$1,812
This Air France deal was found by Cheapflights users on 11/18. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/242:50 pmDEN - SOF
2 stops27h 10mAir France
Sat 1/47:00 amSOF - DEN
2 stops20h 44mAir France
Deal found 11/18$2,015
This KLM deal was found by Cheapflights users on 11/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:51 amDEN - SOF
2 stops18h 14mKLM
Fri 1/37:00 amSOF - DEN
2 stops21h 58mKLM
Deal found 11/18$2,741

Find flights from Denver to Sofia within your budget

Customize your flight search to find flights from Denver 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/1

4:05 pm-11:00 pm

1 stop21h 55m

Sofia

Mon 4/7

12:55 pm-2:20 pm

1 stop34h 25m

$592

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/1

4:05 pm-6:40 pm

1 stop17h 35m

Sofia

Mon 4/7

1:55 pm-4:38 pm

2 stops35h 43m

$595

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/1

11:50 am-6:40 pm

2 stops21h 50m

Sofia

Mon 4/7

6:00 am-9:35 pm

2 stops24h 35m

$623

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 4/14

6:15 am-8:25 am

2 stops17h 10m

Sofia

Sat 4/26

9:15 am-6:10 pm

1 stop17h 55m

$874

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Mon 4/14

11:25 am-3:10 pm

3 stops18h 45m

Sofia

Sat 4/26

5:05 pm-7:00 pm

2 stops34h 55m

$1,107

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 12/24

12:33 pm-2:10 pm

2 stops16h 37m

Sofia

Tue 1/7

6:05 pm-7:16 pm

2 stops34h 11m

$1,658

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 12/24

8:20 pm-11:55 pm

2 stops18h 35m

Sofia

Sun 1/5

6:45 pm-6:50 pm

2 stops33h 05m

$1,812

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 12/24

2:50 pm-3:00 am

2 stops27h 10m

Sofia

Sat 1/4

7:00 am-6:44 pm

2 stops20h 44m

$2,015

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 12/22

10:51 am-2:05 pm

2 stops18h 14m

Sofia

Fri 1/3

7:00 am-7:58 pm

2 stops21h 58m

$2,741

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Compare providers for flights from Denver to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Sofia in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Denver-Sofia flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Denver-Sofia flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Denver-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Sofia flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Denver to Sofia

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

Travel insights for flights from Denver to Sofia

Get recent, data-driven insights about flights from Denver to Sofia including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Denver to Sofia. Price data was last updated on November 15, 2024.

The price you pay for your flight from Denver to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 82 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 Denver to Sofia?

Currently, November is the cheapest month in which you can book a flight from Denver to Sofia (average of $606). Flying from Denver to Sofia in June is currently the most expensive (average of $1,242). 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.

What is the cheapest time of day to fly from DEN to SOF?

Find hourly flight availability from Denver to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s typically best to fly out from Denver to Sofia in the evening. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 November 20, 2024.
Read reviews from past customers who have flown Lufthansa, Turkish Airlines and KLM from Denver to Sofia. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Austrian Airlines
7.6
Good
805 reviews
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Air France
7.4
Good
1,523 reviews
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Turkish Airlines
7.4
Good
3,915 reviews
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

United Airlines
7.4
Good
9,171 reviews
KLM
7.8
Good
1,350 reviews

Comfort

7.7

Crew

8.4

Boarding

7.9

Overall

7.8

Food

7.3

Entertainment

7.2

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Related info for your journey

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

  • What are the cheapest airlines flying from Denver to Sofia round-trip?

    Our cheapest airline available from Denver to Sofia is Lufthansa. Our recent data shows that you can find tickets from as low as $592 on this airline. Additional options worth looking into are United Airlines and Air Canada, starting at $595 and $623 round-trip. Lufthansa is currently priced 41% below the average price you’ll pay for this route.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Denver to Sofia (average of $606). Flying from Denver to Sofia in June is currently the most expensive (average of $1,242). 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.

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Alternative routes for Denver to Sofia

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

Top 5 airlines flying from Denver to Sofia

Discover the top 5 airlines that operate flights from Denver 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$598Average$1,035FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$674Average$1,171FlexibilityNo cancel feeOn-time69%
Turkish AirlinesCheapest$682Average$758FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$767Average$1,197FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$988Average$1,346FlexibilityNo cancel feeOn-time67%
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