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$316+ 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 8/31. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
ago 29 — set 51
sáb 8/29
sáb 9/5
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 julho 30, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
qui 9/248:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
dom 10/49:10 pm
SOF
-
ORD
1 stop20h 30m
Turkish Airlines
Deal found 7/28$767
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
sáb 9/268:10 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
seg 10/53:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 7/28$768
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/1911:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
sáb 10/109:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 7/28$769
This FlightHub deal was found by Cheapflights users on 7/28. 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.
dom 8/238:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
qui 9/243:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 7/28$770
This Expedia deal was found by Cheapflights users on 7/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/278:45 am
ORD
-
SOF
2 stops20h 40m
Multiple Airlines
sex 12/116:25 am
SOF
-
ORD
2 stops16h 27m
Multiple Airlines
Deal found 7/29$772
This Turkish Airlines deal was found by Cheapflights users on 7/27. 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.
ter 9/88:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
dom 10/111:05 pm
SOF
-
ORD
1 stop28h 35m
Turkish Airlines
Deal found 7/27$775
This Turkish Airlines deal was found by Cheapflights users on 7/28. 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.
qua 8/2611:25 am
ORD
-
SOF
1 stop19h 35m
Turkish Airlines
qua 9/233:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 7/28$779
This Turkish Airlines deal was found by Cheapflights users on 7/28. 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.
dom 8/168:10 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
sex 9/2512:35 pm
SOF
-
ORD
1 stop29h 05m
Turkish Airlines
Deal found 7/28$780
This Turkish Airlines deal was found by Cheapflights users on 7/28. 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.
qui 8/2011:25 am
ORD
-
SOF
1 stop19h 35m
Turkish Airlines
qua 9/303:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 7/28$781
This Gotogate deal was found by Cheapflights users on 7/27. 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.
qui 9/1011:25 am
ORD
-
SOF
1 stop16h 20m
Turkish Airlines
qui 9/173:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 7/27$782
This Air Serbia deal was found by Cheapflights users on 7/27. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 9/511:20 pm
ORD
-
SOF
1 stop32h 10m
Air Serbia
ter 10/134:00 pm
SOF
-
ORD
1 stop30h 30m
Air Serbia
Deal found 7/27$783
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/267:25 pm
ORD
-
SOF
2 stops19h 45m
Multiple Airlines
qui 9/107:30 pm
SOF
-
ORD
2 stops28h 30m
Multiple Airlines
Deal found 7/29$784

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 julho 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$767
(Kiwi.com)

One-way from

$316
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,090
Provider with most accurate pricing for Chicago O'Hare Intl-Sofia flight deals.
Search Deals
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. 26% potential increase in price ($279 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 July 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 julho 30, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

dom 8/16

8:10 pm-8:45 am

1 stop28h 35m

Sofia

qui 9/17

3:50 pm-9:40 am

1 stop25h 50m

$780

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

ter 8/25

8:10 pm-8:45 am

1 stop28h 35m

Sofia

dom 10/4

9:10 pm-9:40 am

1 stop20h 30m

$809

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

qui 8/20

8:10 pm-8:20 pm

1 stop16h 10m

Sofia

sex 9/25

3:50 pm-9:40 am

1 stop25h 50m

$811

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

ter 9/29

5:00 pm-8:30 pm

1 stop19h 30m

Sofia

seg 11/23

5:15 pm-1:45 pm

1 stop28h 30m

$837

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

qua 9/23

7:05 pm-1:25 pm

1 stop34h 20m

Sofia

seg 11/23

5:15 pm-6:45 pm

1 stop33h 30m

$837

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

sáb 9/26

11:25 am-8:45 am

1 stop13h 20m

Sofia

qua 11/18

9:40 am-10:00 am

1 stop32h 20m

$840

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

ter 9/29

11:25 am-3:00 pm

1 stop19h 35m

Sofia

sáb 11/21

9:45 pm-10:00 am

1 stop20h 15m

$840
Quickest round-trip

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

dom 10/4

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

sex 2/26

6:25 am-2:52 pm

2 stops16h 27m

$842

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

seg 8/24

10:50 am-12:10 pm

2 stops17h 20m

Sofia

qua 10/7

6:20 am-2:55 pm

1 stop16h 35m

$844

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

qua 9/23

12:52 pm-1:25 pm

2 stops16h 33m

Sofia

ter 11/24

6:25 am-1:10 pm

1 stop14h 45m

$850

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/25

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
BusinessClassPrice 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?

The best time to book flights from Chicago O'Hare Intl Airport to Sofia is 34 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $561). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $1,147). 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.

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Sofia?

Airfare is typical for this route at the moment.

Chicago O'Hare Intl Airport to Sofia flights typically cost between $685 and $900 in September.
The cheapest round-trip price found within the last 5 days was $767 on Turkish Airlines (Sep 24-Oct 4).

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 julho 30, 2026.
Get a feel of what it's like to fly with LOT,Austrian Airlines, andTurkish 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
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
LOT
7.6
Good
1,212 reviews
LOT
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Austrian Airlines
7.6
Good
950 reviews
LOT
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Turkish Airlines
7.4
Good
4,456 reviews
LOT
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
United Airlines
7.4
Good
10,051 reviews
LOT
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Lufthansa
6.8
Okay
8,163 reviews
LOT
7.6
Good
1,212 reviews

Entertainment

6.9

Boarding

7.5

Crew

8.2

Overall

7.6

Comfort

7.5

Food

7.2

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights

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 18h 49m. Fly via Turkish Airlines or British Airways 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 $520 on this airline. Additional options worth looking into are LOT and United Airlines, starting at $578 and $580 round-trip. You may be able to fly from Chicago O'Hare Intl Airport to Sofia for 33% 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 JetBlue, which is currently one of the cheapest options available, starting at $275. Turkish Airlines flights start at $295 while deals on Air Serbia start at $353 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 Sultan Ahmet Camii more than anywhere else. Travelers on a layover in Istanbul can visit Taksim Square, Laleli Camii, and Sultan Ahmet Camii, by traveling 20.8 mi, 21.5 mi, and 22.3 mi, respectively after landing at Istanbul. Travelers can book a car rental at Istanbul for about $46 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 $48 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 Warsaw.

  • 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $561). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $1,147). 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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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 julho 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$520Average$690FlexibilityNo cancel feeOn-time77%
LOTCheapest$578Average$960FlexibilityNo cancel feeOn-time81%
United AirlinesCheapest$580Average$1,005FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$585Average$895FlexibilityNo cancel feeOn-time77%
SWISSCheapest$594Average$837FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$608Average$924FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$609Average$649FlexibilityNo cancel feeOn-time70%
KLMCheapest$614Average$814FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$646Average$939FlexibilityNo cancel feeOn-time78%
Air SerbiaCheapest$703Average$869FlexibilityNo cancel feeOn-timeN/A

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