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O'Hare Intl

$410+ Cheap flights from Sofia (SOF) to O'Hare Intl (ORD)

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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
May 26 — Jun 21
Tue 5/26
Tue 6/2
1 adult, Economy
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Cheap flight deals from Sofia to O'Hare Intl

Cheapest flights from Sofia to O'Hare Intl
Explore the most affordable flight options available from Sofia to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 26, 2026.

This oojo deal was found by Cheapflights users on 4/25. 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.
Wed 9/96:45 pm
SOF
-
ORD
1 stop28h 25m
LOT
Wed 9/305:10 pm
ORD
-
SOF
1 stop12h 40m
LOT
Deal found 4/25$726
This oojo deal was found by Cheapflights users on 4/24. 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.
Wed 9/96:45 pm
SOF
-
ORD
1 stop28h 25m
LOT
Wed 9/235:10 pm
ORD
-
SOF
1 stop24h 45m
LOT
Deal found 4/24$728
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 9/105:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Sat 10/39:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 4/21$737
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 9/105:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Tue 9/299:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 4/21$739
This Kiwi.com deal was found by Cheapflights users on 4/21. 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 9/105:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Thu 10/19:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 4/21$740
This FlightHub deal was found by Cheapflights users on 4/24. 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.
Wed 7/89:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Thu 8/2011:25 am
ORD
-
SOF
1 stop17h 50m
Turkish Airlines
Deal found 4/24$743
This FlightHub deal was found by Cheapflights users on 4/22. 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.
Wed 7/83:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Thu 8/138:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
Deal found 4/22$745
This FlightHub deal was found by Cheapflights users on 4/24. 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.
Thu 9/245:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Wed 10/149:50 pm
ORD
-
SOF
1 stop20h 05m
LOT
Deal found 4/24$747

Find flight deals from Sofia to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to O'Hare Intl (ORD). 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 April 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$726
(oojo)

One-way from

$410
(Kiwi.com)

Popular in

March

Cheapest in

November

Average price

$828
Provider with most accurate pricing for Sofia-Chicago O'Hare Intl flight deals.
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Provider most trusted by Cheapflights users for Sofia-Chicago O'Hare Intl flights.
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From Sofia to Chicago O'Hare Intl
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One-way flight from Sofia to Chicago O'Hare Intl
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Highest demand for flights based on searches. 6% potential increase in price ($53 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in April 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sofia to O'Hare Intl 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 April 26, 2026.
Use the filters below to find and compare flights from Sofia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 9/5

7:00 am-5:41 pm

2 stops18h 41m

Chicago O'Hare Intl

Sat 9/19

5:10 pm-2:00 pm

1 stop12h 50m

$811

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/9

7:00 am-6:07 pm

2 stops19h 07m

Chicago O'Hare Intl

Wed 9/30

1:30 pm-2:00 pm

2 stops16h 30m

$815

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 9/8

9:05 pm-9:40 am

1 stop20h 35m

Chicago O'Hare Intl

Thu 10/1

11:25 am-3:00 pm

1 stop19h 35m

$834

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 9/8

9:05 pm-9:40 am

1 stop20h 35m

Chicago O'Hare Intl

Fri 10/2

11:25 am-8:45 am

1 stop13h 20m

$834

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/7

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Sun 9/27

8:10 pm-8:15 pm

1 stop16h 05m

$834

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 9/11

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Thu 10/1

11:25 am-1:15 pm

1 stop17h 50m

$834
Quickest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 7/26

6:20 am-12:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Sun 8/16

7:05 pm-2:55 pm

1 stop11h 50m

$844

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 9/19

7:00 am-5:41 pm

2 stops18h 41m

Chicago O'Hare Intl

Wed 2/17

12:15 pm-2:05 pm

2 stops17h 50m

$848

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/7

6:20 am-12:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Sat 10/3

1:12 pm-12:10 pm

2 stops14h 58m

$857

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/23

6:20 am-12:55 pm

1 stop14h 35m

Chicago O'Hare Intl

Wed 10/14

1:12 pm-12:10 pm

2 stops14h 58m

$857

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Sofia to O'Hare Intl

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 Sofia to O'Hare Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust 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 Sofia-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Chicago O'Hare Intl Airport 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 Sofia-Chicago O'Hare Intl Airport 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 Sofia to O'Hare Intl

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

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

To ensure you get the cheapest price possible for a flight from Sofia to Chicago O'Hare Intl Airport, you should look to book at least 54 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Sofia to Chicago O'Hare Intl Airport (average of $693). Flying from Sofia to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $847). 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 Sofia to Chicago O'Hare Intl Airport?

Reviews of airlines servicing O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated April 26, 2026.
See what other customers who have flown with KLM,LOT, andTurkish Airlines from Sofia to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,509 reviews
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
LOT
7.5
Good
1,191 reviews
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Turkish Airlines
7.4
Good
4,331 reviews
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,653 reviews
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,950 reviews
KLM
7.8
Good
1,509 reviews

Boarding

7.8

Comfort

7.7

Food

7.3

Entertainment

7.2

Crew

8.4

Overall

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Sofia to O'Hare Intl. 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 from for flights from Sofia to Chicago O'Hare Intl?

    Located just 4.2 mi from the city center, Sofia is the airport most travelers will use when flying to Chicago O'Hare Intl from Sofia. Booking flights from Sofia (SOF) to Chicago O'Hare Intl should be relatively easy as there are 0 daily outbound flights to Chicago O'Hare Intl from 6 different airlines.

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

    Turkish Airlines can get you from Sofia to Chicago O'Hare Intl Airport in just under 25h 50m. Your travel time can differ by up to . There are 5194 mi between Sofia and Chicago O'Hare Intl Airport.

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

    Our cheapest airline available from Sofia to Chicago O'Hare Intl Airport is Turkish Airlines. Our recent data shows that you can find tickets from as low as $616 on this airline. Additional options worth looking into are LOT and KLM, starting at $618 and $644 round-trip. You may be able to fly from Sofia to Chicago O'Hare Intl Airport for 19% less than the average price by searching for these airlines.

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

    $495 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on Lufthansa and Austrian Airlines, with prices starting from $635 and $649, respectively.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Sofia to Chicago O'Hare Intl Airport (average of $693). Flying from Sofia to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $847). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Rosemont
Schaumburg
Naperville
Gurnee
Lake Geneva
Delavan
Hoffman Estates
Downers Grove
Oakbrook Terrace
Benton Harbor
Des Plaines
Oak Brook
South Holland
Libertyville
Elgin
Warrenville
Elk Grove Village
Bridgeview
Great Lakes
Lansing

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Top 6 airlines flying from Sofia to O'Hare Intl

Discover the top 6 airlines that operate flights from Sofia to O'Hare Intl. 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 April 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$616Average$748FlexibilityNo cancel feeOn-time77%
LOTCheapest$618Average$743FlexibilityNo cancel feeOn-time81%
KLMCheapest$644Average$769FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$654Average$866FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$685Average$778FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$710Average$828FlexibilityNo cancel feeOn-time76%

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