£331 Cheap Flights from Sofia (SOF) to Chicago (ORD)

View £331 flight on Fri, 16 Oct 2026Opens in a new window

Popular airlines from Sofia Airport (SOF) to Chicago O'Hare International Airport (ORD)

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Cheap Flights from Sofia (SOF) to Chicago (ORD)

Prices were available within the past 7 days and start at £331 for one-way flights and £602 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Sun, 21 Jun - Tue, 7 Jul
SOF
Sofia
ORD
Chicago
£602 Return, found 2 days ago
£602
Return
found 2 days ago
Select Turkish Airlines flight, departing Sun, 21 Jun from Sofia to Chicago, returning Tue, 7 Jul, priced at £602 found 2 days ago
LOT-Polish Airlines
Sat, 6 Jun - Mon, 22 Jun
SOF
Sofia
ORD
Chicago
£619 Return, found 2 days ago
£619
Return
found 2 days ago
Select LOT-Polish Airlines flight, departing Sat, 6 Jun from Sofia to Chicago, returning Mon, 22 Jun, priced at £619 found 2 days ago
Turkish Airlines
Tue, 23 Jun - Tue, 7 Jul
SOF
Sofia
ORD
Chicago
£623 Return, found 2 days ago
£623
Return
found 2 days ago
Select Turkish Airlines flight, departing Tue, 23 Jun from Sofia to Chicago, returning Tue, 7 Jul, priced at £623 found 2 days ago
Austrian Airlines
Mon, 13 Jul - Mon, 20 Jul
SOF
Sofia
ORD
Chicago
£639 Return, found 2 days ago
£639
Return
found 2 days ago
Select Austrian Airlines flight, departing Mon, 13 Jul from Sofia to Chicago, returning Mon, 20 Jul, priced at £639 found 2 days ago
Lufthansa
Mon, 13 Jul - Mon, 20 Jul
SOF
Sofia
ORD
Chicago
£641 Return, found 2 days ago
£641
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 13 Jul from Sofia to Chicago, returning Mon, 20 Jul, priced at £641 found 2 days ago
United
Fri, 15 May - Mon, 25 May
SOF
Sofia
ORD
Chicago
£645 Return, found 2 days ago
£645
Return
found 2 days ago
Select United flight, departing Fri, 15 May from Sofia to Chicago, returning Mon, 25 May, priced at £645 found 2 days ago
Lufthansa
Mon, 13 Jul - Mon, 20 Jul
SOF
Sofia
ORD
Chicago
£647 Return, found 2 days ago
£647
Return
found 2 days ago
Select Lufthansa flight, departing Mon, 13 Jul from Sofia to Chicago, returning Mon, 20 Jul, priced at £647 found 2 days ago
Lufthansa
Thu, 23 Jul - Thu, 6 Aug
SOF
Sofia
ORD
Chicago
£647 Return, found 3 days ago
£647
Return
found 3 days ago
Select Lufthansa flight, departing Thu, 23 Jul from Sofia to Chicago, returning Thu, 6 Aug, priced at £647 found 3 days ago
United
Fri, 15 May - Fri, 29 May
SOF
Sofia
ORD
Chicago
£648 Return, found 2 days ago
£648
Return
found 2 days ago
Select United flight, departing Fri, 15 May from Sofia to Chicago, returning Fri, 29 May, priced at £648 found 2 days ago
Lufthansa
Thu, 23 Jul - Thu, 6 Aug
SOF
Sofia
ORD
Chicago
£649 Return, found 3 days ago
£649
Return
found 3 days ago
Select Lufthansa flight, departing Thu, 23 Jul from Sofia to Chicago, returning Thu, 6 Aug, priced at £649 found 3 days ago

Alternative airports near Chicago

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from £844
ORD
O'Hare Intl.
Cheapest
Average driving time to city centre23 min
Flights from £844

Frequently asked questions

What is the cheapest month to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
March is typically the cheapest month to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.), with average return fares of approximately £504. This is about 14% lower than the average price throughout the year. March often sees lower prices as it's outside of peak holiday seasons, making it a good time to find deals. Other cheap months to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) include September and November.
How do I find cheap flights from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
To find a cheap flight from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
Based on booking data from the past year, the best time to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) (ORD) depends on what you're looking for. If you're seeking the lowest fares, March and September are typically the cheapest months, with average return flights around £504. If you prefer to travel when there are plenty of flight options and a high volume of fellow travelers, May is a very popular month.
How many flights per day from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
There are approximately 25 connecting flights per day from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) (ORD). Some common connection points include Frankfurt Intl. (FRA), Heathrow (LHR), and Franz Josef Strauss Intl. (MUC).
What is the earliest flight from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
The earliest flight from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) (ORD) typically departs at approximately 2:05 AM local time, operated by FZ / EK. This is a seasonal service active in April. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
You'll typically find the most flights from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) (ORD) on a Wednesday, with around 31 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Lufthansa, Bulgaria Air, and Austrian Airlines.
What are the most popular departure times for flights from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
The most popular departure times for flights from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) (ORD) are in the morning, between 6am and 9am. Approximately 57% of passengers prefer this time window. Many major carriers, including Lufthansa, United Airlines and Delta, offer flights during this window. This timing works well because it allows you to arrive at your destination with plenty of time to settle in or connect to further travel.
How long does it take to fly from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
Flying from SOF to ORD with a connection usually takes about 13 hours 20 minutes, traveling roughly 5,198 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
Select the "Business class" and "First class" filters when looking for SOF to ORD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) flight with Expedia?
It's easy to earn miles on a Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Chicago from SOF (SOF)?
From SOF (SOF), you can fly directly into O'Hare Intl. (ORD) to reach Chicago. Some flights may connect through major hubs like Frankfurt Intl. (FRA), Franz Josef Strauss Intl. (MUC), Schiphol (AMS) before reaching Chicago. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) at the last minute?
Typically, booking a last minute flight from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package?
Securing a Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.)?
If you booked your Sofia (SOF) to Chicago, IL (ORD-O'Hare Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Sofia
Destination airport
O'Hare Intl.
Airlines serving
Air Canada, Air France, Air Serbia, Austrian Airlines, ITA Airways, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines
Return price
£601
Distance
8316 km

Book with confidence

Compare flights from Sofia to Chicago easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Sofia to Chicago. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to O'Hare Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Sofia to O'Hare Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Sofia (SOF) to O'Hare Intl. (ORD)

The easiest way to view the best deals on flights from Sofia to Chicago today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Sofia to O'Hare Intl. start at just £602 and range up to £649.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Sofia and Chicago
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Sofia to Chicago flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Sofia to O'Hare Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Sofia to Chicago easily and book with confidence

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