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Sofia

$293+ Cheap flights from Aurora, 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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOF
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheapflights Tip: The best prices from Aurora to Sofia are usually found in April or November, booked 48 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Aurora to Sofia

Cheapest flights from Aurora to Sofia
Explore the most affordable flight options available from Aurora to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 16, 2025.

This Trip.com deal was found by Cheapflights users on 12/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:40 pmDEN - SOF
2 stops18h 55mMultiple Airlines
Tue 12/239:35 amSOF - DEN
1 stop17h 00mMultiple Airlines
Deal found 12/15$1,710
This FlightHub deal was found by Cheapflights users on 12/15. 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.
Tue 12/167:20 pmDEN - SOF
1 stop16h 30mTurkish Airlines
Tue 12/239:35 amSOF - DEN
1 stop17h 00mTurkish Airlines
Deal found 12/15$1,784
This United Airlines deal was found by Cheapflights users on 12/15. 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.
Tue 12/1610:15 amDEN - SOF
2 stops18h 30mUnited Airlines
Tue 12/236:00 amSOF - DEN
1 stop16h 40mUnited Airlines
Deal found 12/15$1,796

Find flight deals from Aurora to Sofia

Keep the following information in mind while searching for Aurora to Sofia flight deals. Data was last updated December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$590
(FlightHub)

One-way from

$293
(Trip.com)

Popular in

July

Cheapest in

April

Average price

$1,026
Provider with most accurate pricing for Denver Intl-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Sofia flights.
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From Aurora to Sofia
Search Deals
One-way flight from Aurora to Sofia
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($270 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Aurora 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 December 16, 2025.
Use the filters below to find and compare flights from Aurora to Sofia that are best for you.

Fly from

Aurora

Fly to

Sofia

Route

Depart

Return

Price

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 2/10

7:20 pm-3:10 pm

1 stop34h 50m

Sofia

Thu 2/19

9:35 am-5:35 pm

1 stop17h 00m

$590

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Fri 1/30

7:20 pm-8:50 pm

1 stop16h 30m

Sofia

Tue 2/17

9:35 am-5:35 pm

1 stop17h 00m

$615

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 4/25

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Sun 5/3

9:35 am-6:25 pm

1 stop17h 50m

$624

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Fri 1/30

7:20 pm-3:10 pm

1 stop34h 50m

Sofia

Fri 2/20

4:00 pm-5:35 pm

1 stop34h 35m

$641

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 1/31

7:20 pm-3:10 pm

1 stop34h 50m

Sofia

Fri 2/20

4:00 pm-5:35 pm

1 stop34h 35m

$641

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/28

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Mon 5/4

9:05 pm-6:25 pm

1 stop30h 20m

$647

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 1/29

7:20 pm-3:10 pm

1 stop34h 50m

Sofia

Mon 2/16

4:00 pm-5:35 pm

1 stop34h 35m

$652

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 1/31

7:20 pm-3:10 pm

1 stop34h 50m

Sofia

Tue 2/17

9:35 am-5:35 pm

1 stop17h 00m

$652

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 4/25

8:25 pm-3:00 pm

1 stop33h 35m

Sofia

Tue 5/5

9:35 am-6:25 pm

1 stop17h 50m

$657

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Tue 4/28

8:25 pm-8:15 pm

1 stop14h 50m

Sofia

Tue 5/5

9:35 am-6:25 pm

1 stop17h 50m

$657

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 14 results
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Best time to book a flight from Aurora to Sofia

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

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

Use this chart to determine the optimal time to book a round-trip flight from Aurora to Sofia. Price data was last updated on December 12, 2025.

The price you pay for your flight from Aurora to Sofia may vary depending on when you book. For the best chance of a lower fare, look to book 48 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 Aurora to Sofia?

Currently, February is the cheapest month in which you can book a flight from Aurora to Sofia (average of $518). Flying from Aurora to Sofia in December is currently the most expensive (average of $908). 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 9UR to SOF?

Find hourly flight availability from Aurora 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 December 16, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 41% on flights from Aurora to Sofia by exploring options for tickets in the evening.

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 December 16, 2025.
Peruse reviews from past customers who have flown with United Airlines, Turkish Airlines, and Lufthansa from Aurora to Sofia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,094 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Turkish Airlines
7.3
Good
4,104 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
Lufthansa
6.8
Okay
7,632 reviews
United Airlines
7.4
Good
9,094 reviews

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

Find useful and relevant information for your journey from Aurora 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 Aurora?

    If you book a flight to Sofia from Aurora, you will be flying to Sofia, which is the city’s only airport. Sofia (SOF) is located 4.2 mi from the center of Sofia. There are 0 flights from Aurora to Sofia per day from 3 different airlines.

  • How long is the flight from Aurora to Sofia?

    Airlines like Turkish Airlines fly from Aurora to Sofia in about 34h 50m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 5871 mi.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Aurora to Sofia (average of $518). Flying from Aurora to Sofia in December is currently the most expensive (average of $908). 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

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Alternative routes for Aurora 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 Aurora to Sofia

Discover the top 3 airlines that operate flights from Aurora 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$522Average$626FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$616Average$1,114FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$656Average$1,015FlexibilityNo cancel feeOn-time69%

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