$477+ Cheap flights from Sofia (SOF) to Denver (DEN)
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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — DEN
Nov 23 — Nov 301
Round-trip
1 adult, Economy
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Find cheap flights from Sofia to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sofia to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Sofia to DenverExplore the most affordable flight options available from Sofia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
Explore the most affordable flight options available from Sofia to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 24, 2026.
This oojo deal was found by Cheapflights users on 10/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/157:30 pm -
1 stop34h 40m
Deal found 10/22![Turkish Airlines logo]()
$855
This Turkish Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 11/239:30 am -
2 stops22h 14m
Mon 11/307:30 pm -
1 stop16h 25m
Deal found 10/20![Multiple Airlines logo]()
$915
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/156:00 am -
2 stops17h 40m
Deal found 10/22![Multiple Airlines logo]()
$963
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/236:25 am -
1 stop16h 15m
Mon 11/308:30 pm -
1 stop17h 25m
Deal found 10/20![United Airlines logo]()
$974
This British Airways deal was found by Cheapflights users on 10/20. 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.
Sun 11/87:45 pm -
2 stops36h 09m
Sun 11/155:01 pm -
1 stop14h 19m
Deal found 10/20![British Airways logo]()
$976
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
3 stops30h 27m
Sun 11/153:40 pm -
2 stops23h 15m
Deal found 10/23![Multiple Airlines logo]()
$1,154
Best flights from Sofia to DenverDiscover carefully curated flight deals from Sofia to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
Discover carefully curated flight deals from Sofia to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 24, 2026.
This oojo deal was found by Cheapflights users on 10/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/157:30 pm -
1 stop34h 40m
Deal found 10/22![Turkish Airlines logo]()
$855
This Turkish Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 11/239:30 am -
2 stops22h 14m
Mon 11/307:30 pm -
1 stop16h 25m
Deal found 10/20![Multiple Airlines logo]()
$915
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/236:25 am -
1 stop16h 15m
Mon 11/308:30 pm -
1 stop17h 25m
Deal found 10/20![United Airlines logo]()
$974
This lol.travel deal was found by Cheapflights users on 10/23. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:00 am -
1 stop17h 30m
Sun 11/158:30 pm -
1 stop12h 50m
Deal found 10/23![Lufthansa logo]()
$1,314
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/156:00 am -
2 stops17h 40m
Deal found 10/22![Multiple Airlines logo]()
$963
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
3 stops30h 27m
Sun 11/153:40 pm -
2 stops23h 15m
Deal found 10/23![Multiple Airlines logo]()
$1,154
Last-minute flights from Sofia to DenverDiscover last-minute flight deals from Sofia to Denver. Data last updated October 24, 2026 and is based on user searches.
Discover last-minute flight deals from Sofia to Denver. Data last updated October 24, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 10/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/157:30 pm -
1 stop34h 40m
Deal found 10/22![Turkish Airlines logo]()
$855
This Turkish Airlines deal was found by Cheapflights users on 10/22. 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.
Sun 11/89:30 am -
1 stop16h 55m
Sun 11/156:00 am -
2 stops17h 40m
Deal found 10/22![Multiple Airlines logo]()
$963
This British Airways deal was found by Cheapflights users on 10/20. 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.
Sun 11/87:45 pm -
2 stops36h 09m
Sun 11/155:01 pm -
1 stop14h 19m
Deal found 10/20![British Airways logo]()
$976
This Mytrip deal was found by Cheapflights users on 10/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
3 stops30h 27m
Sun 11/153:40 pm -
2 stops23h 15m
Deal found 10/23![Multiple Airlines logo]()
$1,154
This Turkish Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 11/239:30 am -
2 stops22h 14m
Mon 11/307:30 pm -
1 stop16h 25m
Deal found 10/20![Multiple Airlines logo]()
$915
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/236:25 am -
1 stop16h 15m
Mon 11/308:30 pm -
1 stop17h 25m
Deal found 10/20![United Airlines logo]()
$974
One-way flights from Sofia to DenverSearch for one-way flight options from Sofia to Denver. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
Search for one-way flight options from Sofia to Denver. Find affordable one-way fares based on user searches. Data last updated October 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 11/242:05 pm -
3 stops41h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$477
This Booking.com deal was found by Cheapflights users on 10/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/244:00 pm -
1 stop34h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Turkish Airlines logo]()
$847
Find flight deals from Sofia to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Denver (DEN). 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 October 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $855 (oojo) |
One-way from | $477 (Kiwi.com) |
Popular in | July |
Cheapest in | April |
Average price | $1,030 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sofia to Denver 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 7,457,451 searches. Data last updated October 24, 2026.
Use the filters below to find and compare flights from Sofia to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Tue 11/24
2:05 pm-10:42 pm
3 stops41h 37m
Denver Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$477
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Tue 11/24
4:00 pm-5:25 pm
1 stop34h 25m
Denver Intl
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$847
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Sun 11/8
9:30 am-5:25 pm
1 stop16h 55m
Denver Intl
Sun 11/15
7:30 pm-3:10 pm
1 stop34h 40m
$855
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Mon 11/23
9:30 am-10:44 pm
2 stops22h 14m
Denver Intl
Mon 11/30
7:30 pm-8:55 pm
1 stop16h 25m
$915
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Sun 11/8
9:30 am-5:25 pm
1 stop16h 55m
Denver Intl
Sun 11/15
6:00 am-8:40 am
2 stops17h 40m
$963
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Mon 11/23
6:25 am-1:40 pm
1 stop16h 15m
Denver Intl
Mon 11/30
8:30 pm-10:55 pm
1 stop17h 25m
$974
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Thu 11/12
10:55 am-8:22 am
3 stops30h 27m
Denver Intl
Sun 11/15
3:40 pm-11:55 pm
2 stops23h 15m
$1,154
Quickest round-trip
SofiaDenver
SOF Sofia - DEN Denver Intl
SOFDEN
Sofia
Thu 11/12
6:00 am-2:30 pm
1 stop17h 30m
Denver Intl
Sun 11/15
8:30 pm-6:20 pm
1 stop12h 50m
$1,314
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Sofia-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sofia-Denver flights, Cheapflights users trust FlightHub the most. FlightHub 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 Sofia-Denver 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 Sofia to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Sofia with our price prediction graph.
SOF-DEN
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.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated October 24, 2026.
Get a feel of what it's like to fly with Turkish Airlines,United Airlines, andLufthansa from Sofia to Denver by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Crew
7.8
Reviews
1 / 20
2.0
MediocreGigi,Oct 2026
IST - MIA
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Crew
7.8
Reviews
1 / 20
2.0
MediocreGigi,Oct 2026
IST - MIA
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Crew
7.8
Reviews
1 / 20
2.0
MediocreGigi,Oct 2026
IST - MIA
Food
7.5
Boarding
7.3
Entertainment
7.5
Comfort
7.3
Overall
7.4
Crew
7.8
Reviews
1 / 20
2.0
MediocreGigi,Oct 2026
IST - MIA
Related info for your journey
Find useful and relevant information for your journey from Sofia to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Westminster
Lakewood
Centennial
Broomfield
Englewood
Golden
Black Hawk
Wheat Ridge
Silverthorne
Fort Morgan
Greeley
Frisco
Winter Park
Limon
Central City
Manitou Springs
Glendale
Cripple Creek
Evergreen
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Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 24, 2026.
Search flights from Sofia to Denver by cabin class
Find flights from Sofia to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sofia and Denver flights
Browse other Sofia and Denver flight options. Last updated on October 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Sofia to Denver
Discover the top 3 airlines that operate flights from Sofia to Denver. 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 7,457,451 searches. Data last updated October 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$820 | Average$908 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$838 | Average$1,021 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$849 | Average$996 | FlexibilityNo cancel fee | On-time76% |