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$253+ Cheap flights from O'Hare Intl (ORD) 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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 January 14, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$533
(oojo)

One-way from

$253
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$633
Provider with most accurate pricing for Chicago O'Hare Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Sofia flights.
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From Chicago O'Hare Intl to Sofia
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One-way flight from Chicago O'Hare Intl to Sofia
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Highest demand for flights based on searches. 25% potential increase in price ($254 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from O'Hare Intl to Sofia

Cheapest flights from O'Hare Intl to Sofia
Explore the most affordable flight options available from O'Hare Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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.
Fri 2/279:55 pm
ORD
-
SOF
1 stop11h 55m
LOT
Sun 3/82:35 pm
SOF
-
ORD
2 stops37h 20m
LOT
Deal found 1/13$533
This Mytrip deal was found by Cheapflights users on 1/13. 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.
Wed 3/412:50 pm
ORD
-
SOF
2 stops21h 30m
Air Canada
Mon 3/91:45 pm
SOF
-
ORD
2 stops54h 16m
Air Canada
Deal found 1/13$535
This Justfly.com deal was found by Cheapflights users on 1/12. 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.
Thu 5/77:50 pm
ORD
-
SOF
1 stop16h 25m
Turkish Airlines
Mon 6/13:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 1/12$537
This Kiwi.com deal was found by Cheapflights users on 1/12. 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.
Thu 2/264:05 pm
ORD
-
SOF
1 stop13h 45m
Lufthansa
Thu 3/56:05 am
SOF
-
ORD
2 stops15h 20m
Lufthansa
Deal found 1/12$538
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
Thu 3/510:35 pm
ORD
-
SOF
1 stop16h 10m
Lufthansa
Thu 3/196:05 am
SOF
-
ORD
2 stops15h 20m
Lufthansa
Deal found 1/13$539
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Fri 4/172:00 pm
ORD
-
SOF
2 stops14h 10m
Multiple Airlines
Fri 4/246:20 am
SOF
-
ORD
1 stop14h 35m
Multiple Airlines
Deal found 1/12$540
This Kiwi.com deal was found by Cheapflights users on 1/12. 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.
Sun 3/297:05 pm
ORD
-
SOF
1 stop11h 55m
SWISS
Sun 4/1212:55 pm
SOF
-
ORD
2 stops31h 40m
SWISS
Deal found 1/12$541
This Kiwi.com deal was found by Cheapflights users on 1/12. 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.
Fri 4/171:00 pm
ORD
-
SOF
2 stops21h 10m
Austrian Airlines
Fri 4/248:00 am
SOF
-
ORD
1 stop13h 20m
Austrian Airlines
Deal found 1/12$542
This Kiwi.com deal was found by Cheapflights users on 1/12. 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.
Thu 4/211:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
Tue 4/289:35 am
SOF
-
ORD
1 stop16h 40m
Turkish Airlines
Deal found 1/12$545
This Gurufare deal was found by Cheapflights users on 1/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/39:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Wed 4/292:40 pm
SOF
-
ORD
1 stop13h 10m
LOT
Deal found 1/12$546
This KAYAK deal was found by Cheapflights users on 1/12. 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.
Sun 3/294:20 pm
ORD
-
SOF
1 stop11h 20m
Austrian Airlines
Mon 4/276:55 pm
SOF
-
ORD
1 stop26h 25m
Austrian Airlines
Deal found 1/12$547
This Justfly.com deal was found by Cheapflights users on 1/13. 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.
Fri 8/77:50 pm
ORD
-
SOF
1 stop35h 10m
Turkish Airlines
Mon 9/73:50 pm
SOF
-
ORD
1 stop14h 15m
Turkish Airlines
Deal found 1/13$548

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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 January 14, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sofia that are best for you.

Fly from

O'Hare Intl

Fly to

Sofia

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 1/25

11:44 am-4:20 pm

2 stops20h 36m

Sofia

Sat 2/14

12:05 pm-7:19 am

2 stops27h 14m

$550

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 3/5

9:55 pm-1:50 pm

1 stop31h 55m

Sofia

Mon 3/9

6:35 pm-9:00 pm

1 stop33h 25m

$556

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 3/29

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

Sun 4/12

6:20 am-8:25 pm

2 stops22h 05m

$567

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 2/28

8:40 pm-6:20 pm

2 stops37h 40m

Sofia

Sun 3/8

6:10 am-1:25 pm

1 stop15h 15m

$569

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 3/28

8:40 pm-12:10 pm

2 stops31h 30m

Sofia

Sun 4/12

6:20 am-11:00 am

1 stop12h 40m

$569

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 3/29

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

Sun 4/12

6:20 am-4:53 pm

2 stops18h 33m

$572

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 3/11

1:37 pm-2:05 pm

2 stops17h 28m

Sofia

Wed 9/9

7:00 am-2:30 pm

1 stop15h 30m

$575

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/8

1:00 pm-12:10 pm

2 stops15h 10m

Sofia

Sun 4/12

6:20 am-4:53 pm

2 stops18h 33m

$576

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 2/28

8:40 pm-6:20 pm

2 stops37h 40m

Sofia

Sun 3/8

6:10 am-6:45 pm

2 stops20h 35m

$578

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 2/1

9:55 pm-1:50 pm

2 stops31h 55m

Sofia

Sun 3/22

2:35 pm-9:00 pm

1 stop13h 25m

$578

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/13

Showing 1-10 of 17 results
1
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Compare providers for flights from O'Hare Intl 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 O'Hare Intl to Sofia in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust 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 Chicago O'Hare Intl Airport-Sofia flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Chicago O'Hare Intl Airport-Sofia flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Sofia flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Chicago O'Hare Intl Airport-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 O'Hare Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from O'Hare Intl 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 Chicago O'Hare Intl Airport to Sofia

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Sofia. Price data was last updated on January 9, 2026.

The best time to book flights from Chicago O'Hare Intl Airport to Sofia is 46 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sofia?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $473). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $825). 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 January 14, 2026.
Get a feel of what it's like to fly with LOT, Austrian Airlines, and United Airlines from Chicago O'Hare Intl Airport to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
LOT
7.5
Good
1,169 reviews
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
Austrian Airlines
7.5
Good
893 reviews
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
United Airlines
7.4
Good
9,156 reviews
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
Turkish Airlines
7.3
Good
4,167 reviews
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.
Lufthansa
6.8
Okay
7,711 reviews
LOT
7.5
Good
1,169 reviews

Food

7.1

Entertainment

6.9

Boarding

7.6

Comfort

7.4

Crew

8.2

Overall

7.5

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

WAW - JFK

The only thing that I could say I really liked was the speed of travel. I think the flight time was significantly reduced, but I only think happened because there were delays in our departure time. We wound up arriving about 1 hour later than originally planned. A few things that could have improved was the entertainment available on board and also the ability to view the flight details in real time. I was just the lucky passenger to get a busted screen so I couldn't watch any entertainment. The passenger sitting next to me was kind enough to switch seats with me once his move was done. The choices for movies and shows were ok, nothing great, but I was grateful some ok movies were available to pass the time. I was not very happy with the absence of flight details. There was a timer that showed how much time was left in the flight, but no other details. Other airlines I've been with offered interactive maps that showed you where the plane was traveling like a normal GPS app would do on your phone which is super nice to have. Flight attendants were nice and helpful. The clarity of the announcements was terrible. Even in English, I could hardly make out what the person was saying. Please make improvements.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 Chicago O'Hare Intl?

    Sofia (SOF) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Sofia. You should not have trouble finding flights to Sofia from Chicago O'Hare Intl; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 10 airlines have flights to the Sofia airport from Chicago O'Hare Intl. It is only a 4.2 mi journey from Sofia (SOF) to Sofia’s city center.

  • How long is the flight from Chicago O'Hare Intl Airport to Sofia?

    There are many flights that can get you from Chicago O'Hare Intl Airport to Sofia in 13h. Fly via British Airways, LOT, or Lufthansa to get the fastest option. Airlines will cover a distance of 5194 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Sofia round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Sofia is Turkish Airlines. Our recent data shows that you can find tickets from as low as $518 on this airline. Additional options worth looking into are KLM and United Airlines, starting at $533 and $580 round-trip. You may be able to fly from Chicago O'Hare Intl Airport to Sofia for 31% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Sofia one-way?

    To fly one-way, consider booking your trip with Turkish Airlines, which is currently one of the cheapest options available, starting at $295. Air Serbia flights start at $335 while deals on SWISS start at $394 one-way.

  • Where are the most common layover locations when flying from Chicago O'Hare Intl Airport to Sofia?

    Chicago O'Hare Intl Airport to Sofia flights have a layover in Istanbul most often. Munich is the second most popular location for layovers on flights from Chicago O'Hare Intl Airport to Sofia.

  • What are some popular things to do or see while on a layover in Istanbul?

    Istanbul travelers tend to visit Taksim Square, Laleli Camii, and Beyazit Meydani more than anywhere else. Travelers on a layover in Istanbul can visit Taksim Square, Laleli Camii, and Beyazit Meydani, by traveling 20.8 mi, 21.5 mi, and 21.7 mi, respectively after landing at Istanbul. Travelers can book a car rental at Istanbul for about $33 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Munich?

    Munich travelers tend to visit Theresienwiese, Marienplatz, and Altes Rathaus more than any other notable places. Theresienwiese, Marienplatz and Altes Rathaus are located about 18.8 mi, 17.8 mi, and 17.8 mi, respectively from Munich Franz Josef Strauss if you are interested in checking them out. Travelers can book a car rental at Munich Franz Josef Strauss for about $61 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Chicago O'Hare Intl Airport to Sofia flights?

    Chicago O'Hare Intl Airport to Sofia flights that have layovers will least frequently stop in Munich.

  • Can I find deals for flights from O'Hare Intl to Sofia that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Sofia?

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

  • Can I find deals for business class flights from O'Hare Intl to Sofia?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 Chicago O'Hare Intl Airport to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $473). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $825). 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 O'Hare Intl to Sofia

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

Top 10 airlines flying from O'Hare Intl to Sofia

Discover the top 10 airlines that operate flights from O'Hare Intl 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$518Average$761FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$658FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$581Average$788FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
LOTCheapest$586Average$971FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$588Average$876FlexibilityNo cancel feeOn-time76%
SWISSCheapest$593Average$812FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$606Average$942FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$611Average$749FlexibilityNo cancel feeOn-time70%
Air SerbiaCheapest$631Average$934FlexibilityNo cancel feeOn-timeN/A

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