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$272+ 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
mars 10 — mars 171
mar. 3/10
mar. 3/17
1 adult, Economy
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Cheap 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 février 8, 2026.

This FlightHub deal was found by Cheapflights users on 2/7. 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.
mar. 3/38:20 pm
ORD
-
SOF
1 stop16h 30m
Turkish Airlines
mar. 3/249:35 am
SOF
-
ORD
1 stop32h 30m
Turkish Airlines
Deal found 2/7$539
This FlightHub deal was found by Cheapflights users on 2/8. 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.
mar. 3/1712:50 pm
ORD
-
SOF
1 stop25h 00m
Turkish Airlines
mer. 4/159:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/8$546
This FlightHub deal was found by Cheapflights users on 2/8. 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.
lun. 4/68:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
mer. 5/139:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/8$548
This FlightHub deal was found by Cheapflights users on 2/6. 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.
mer. 2/188:20 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
mer. 4/159:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 2/6$549
This oojo deal was found by Cheapflights users on 2/5. 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.
lun. 4/68:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
mer. 4/229:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/5$552
This FlightHub deal was found by Cheapflights users on 2/8. 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.
mar. 3/318:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
mar. 4/143:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 2/8$558
This oojo deal was found by Cheapflights users on 2/7. 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.
mer. 3/1112:50 pm
ORD
-
SOF
1 stop25h 00m
Turkish Airlines
mer. 3/259:35 am
SOF
-
ORD
1 stop32h 30m
Turkish Airlines
Deal found 2/7$561
This FlightHub deal was found by Cheapflights users on 2/8. 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.
mer. 3/1812:50 pm
ORD
-
SOF
1 stop12h 55m
Turkish Airlines
mer. 4/159:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/8$562
This Mytrip deal was found by Cheapflights users on 2/6. 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.
mar. 3/108:16 pm
ORD
-
SOF
3 stops34h 34m
Multiple Airlines
mar. 3/242:00 pm
SOF
-
ORD
2 stops17h 22m
Multiple Airlines
Deal found 2/6$569
This FlightHub deal was found by Cheapflights users on 2/7. 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.
jeu. 7/3011:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
ven. 9/182:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 2/7$570
This Gotogate deal was found by Cheapflights users on 2/4. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 9/1911:50 pm
ORD
-
SOF
1 stop24h 55m
Turkish Airlines
ven. 10/3010:05 am
SOF
-
ORD
1 stop16h 20m
Turkish Airlines
Deal found 2/4$571

Find 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 février 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$539
(FlightHub)

One-way from

$272
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$641
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.
Search Deals
From Chicago O'Hare Intl to Sofia
Search Deals
One-way flight from Chicago O'Hare Intl to Sofia
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($232 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 février 8, 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

jeu. 4/9

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

lun. 4/13

9:05 pm-9:40 am

1 stop20h 35m

$585

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

jeu. 4/9

9:50 pm-1:55 am

2 stops20h 05m

Sofia

lun. 4/13

2:40 pm-7:50 pm

1 stop13h 10m

$620

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

ven. 2/27

8:20 pm-8:45 am

1 stop28h 25m

Sofia

dim. 3/8

4:00 pm-11:05 am

1 stop26h 05m

$641

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

sam. 2/21

5:30 pm-3:30 pm

1 stop14h 00m

Sofia

jeu. 3/5

4:00 pm-3:00 pm

1 stop31h 00m

$642

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mer. 8/5

4:40 pm-3:00 am

1 stop26h 20m

Sofia

sam. 9/12

5:00 am-9:15 pm

1 stop24h 15m

$667

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

sam. 8/1

11:20 pm-3:35 pm

1 stop32h 15m

Sofia

dim. 8/30

4:05 pm-2:30 pm

1 stop30h 25m

$667

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 7/28

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

mar. 8/18

1:05 pm-12:35 pm

1 stop31h 30m

$674

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 8/3

4:40 pm-3:35 pm

1 stop14h 55m

Sofia

sam. 8/29

5:00 am-9:15 pm

1 stop24h 15m

$692

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 8/3

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

ven. 8/28

6:20 am-12:55 pm

1 stop14h 35m

$703

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

dim. 5/10

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

sam. 5/23

1:55 pm-7:55 pm

1 stop14h 00m

$703

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/6

Showing 1-10 of 22 results
1
2
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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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy1 starTrust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
MytripPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago O'Hare Intl Airport-Sofia flight deals on Cheapflights vs. FlightHub >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 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 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 February 6, 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 $472). 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 février 8, 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
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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
1,179 reviews
LOT
7.5
Good
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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
896 reviews
LOT
7.5
Good
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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
9,259 reviews
LOT
7.5
Good
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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
4,210 reviews
LOT
7.5
Good
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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
7,775 reviews
LOT
7.5
Good
1,179 reviews

Crew

8.2

Food

7.1

Boarding

7.5

Entertainment

6.9

Comfort

7.4

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 12 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 14h. Fly via Turkish Airlines, LOT, or Air Serbia 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 ITA Airways. Our recent data shows that you can find tickets from as low as $469 on this airline. Additional options worth looking into are Turkish Airlines and KLM, starting at $520 and $533 round-trip. You may be able to fly from Chicago O'Hare Intl Airport to Sofia for 36% 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. United Airlines flights start at $305 while deals on Air Serbia start at $335 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 $37 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 $51 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 $472). 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

Browse thousands of different options on Cheapflights for your next trip

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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 février 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$469Average$965FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$520Average$785FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$654FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$566Average$779FlexibilityNo cancel feeOn-time69%
SWISSCheapest$569Average$818FlexibilityNo cancel feeOn-time79%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$587Average$873FlexibilityNo cancel feeOn-time76%
LOTCheapest$595Average$907FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$606Average$936FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$609Average$749FlexibilityNo cancel feeOn-time70%

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