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Sofia

$517+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — SOF
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Aurora to Sofia are usually found in April or February, booked 48 days in advance, depart on a Thursday or Sunday and return on a Friday

Cheap flight deals from Aurora to Sofia

Keep the following information in mind while searching for Aurora to Sofia flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$639
(FlightHub)

One-way from

$517
(American Airlines)

Popular in

June

Cheapest in

April

Average price

$1,337
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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From Aurora to Sofia
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One-way flight from Aurora to Sofia
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Highest demand for flights based on searches. 30% potential increase in price ($396 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 1, 2025.

This Air Canada deal was found by Cheapflights users on 4/30. 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.
Sat 11/157:15 pmDEN - SOF
2 stops37h 55mAir Canada
Wed 11/266:00 amSOF - DEN
2 stops43h 35mAir Canada
Deal found 4/30$639
This Turkish Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 11/157:35 pmDEN - SOF
1 stop16h 15mTurkish Airlines
Fri 11/283:55 pmSOF - DEN
1 stop34h 45mTurkish Airlines
Deal found 4/30$642
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Mon 11/174:25 pmDEN - SOF
1 stop16h 45mMultiple Airlines
Fri 11/286:00 amSOF - DEN
2 stops19h 38mMultiple Airlines
Deal found 4/30$644
This United Airlines deal was found by Cheapflights users on 4/30. 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 11/188:20 pmDEN - SOF
1 stop12h 50mUnited Airlines
Wed 11/266:00 amSOF - DEN
2 stops20h 46mUnited Airlines
Deal found 4/30$645
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Mon 11/174:25 pmDEN - SOF
1 stop16h 45mLufthansa
Fri 11/286:05 amSOF - DEN
1 stop17h 35mLufthansa
Deal found 4/30$649
This SWISS deal was found by Cheapflights users on 4/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/155:50 pmDEN - SOF
1 stop33h 40mSWISS
Tue 8/191:15 pmSOF - DEN
1 stop36h 05mSWISS
Deal found 4/29$789
This British Airways deal was found by Cheapflights users on 4/29. 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 6/156:35 pmDEN - SOF
1 stop15h 35mBritish Airways
Wed 8/209:30 pmSOF - DEN
1 stop27h 55mBritish Airways
Deal found 4/29$809
This Austrian Airlines deal was found by Cheapflights users on 4/29. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/135:40 pmDEN - SOF
2 stops39h 30mAustrian Airlines
Wed 8/206:55 pmSOF - DEN
2 stops30h 40mAustrian Airlines
Deal found 4/29$1,122

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 May 1, 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

Thu 9/4

7:50 pm-8:25 pm

1 stop15h 35m

Sofia

Tue 9/9

9:25 am-5:55 pm

1 stop17h 30m

$639

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 9/4

8:20 pm-11:00 pm

1 stop17h 40m

Sofia

Tue 9/9

2:00 pm-10:14 am

2 stops29h 14m

$735

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Thu 9/4

7:45 am-11:15 am

2 stops18h 30m

Sofia

Tue 9/9

12:00 pm-10:14 am

2 stops31h 14m

$745

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 6/15

5:50 pm-12:30 pm

1 stop33h 40m

Sofia

Tue 8/19

1:15 pm-4:20 pm

1 stop36h 05m

$789

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 6/15

11:59 pm-12:00 pm

2 stops27h 01m

Sofia

Tue 8/19

1:15 pm-4:20 pm

1 stop36h 05m

$796

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sun 6/15

6:35 pm-7:10 pm

1 stop15h 35m

Sofia

Wed 8/20

9:30 pm-4:25 pm

1 stop27h 55m

$809

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Sat 6/14

4:15 pm-11:00 pm

1 stop21h 45m

Sofia

Wed 8/20

6:00 am-1:45 pm

1 stop16h 45m

$864

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Fri 6/13

5:40 pm-6:10 pm

2 stops39h 30m

Sofia

Wed 8/20

6:55 pm-4:35 pm

2 stops30h 40m

$1,122

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 9/10

6:35 pm-1:30 pm

1 stop33h 55m

$517

DenverSofia

DEN - SOF

DENSOF

Denver Intl

Wed 9/10

6:35 pm-1:30 pm

1 stop33h 55m

$527

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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 April 25, 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, November is the cheapest month in which you can book a flight from Aurora to Sofia (average of $632). Flying from Aurora to Sofia in June is currently the most expensive (average of $1,218). 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 May 1, 2025.

When flying from Aurora to Sofia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 May 1, 2025.
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Austrian Airlines
7.6
Good
781 reviews
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
SWISS
7.5
Good
1,588 reviews
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
United Airlines
7.4
Good
8,696 reviews
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
Turkish Airlines
7.3
Good
3,791 reviews
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.
American Airlines
7.2
Good
10,000 reviews
Austrian Airlines
7.6
Good
781 reviews

Boarding

7.6

Entertainment

6.7

Food

6.7

Crew

8.1

Overall

7.6

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Ely,Mar 2025

VIE - PMI

Luggage at destination was not split into priorities. Had business and only got my bag after 20 minutes, almost towards the end and I was in a rush, so the "priority" was completely ignored.

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.

  • 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, November is the cheapest month in which you can book a flight from Aurora to Sofia (average of $632). Flying from Aurora to Sofia in June is currently the most expensive (average of $1,218). 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 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$531Average$727FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$687Average$967FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$759Average$1,200FlexibilityNo cancel feeOn-time76%

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