£248 Cheap Flights from Chicago (ORD) to Sofia (SOF)

View £248 flight on Tue, 5 Jan 2027Opens in a new window

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

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

Prices were available within the past 7 days and start at £248 for one-way flights and £595 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Fri, 7 Aug - Wed, 23 Sept
ORD
Chicago
SOF
Sofia
£595 Return, found 21 hours ago
£595
Return
found 21 hours ago
Select Turkish Airlines flight, departing Fri, 7 Aug from Chicago to Sofia, returning Wed, 23 Sept, priced at £595 found 21 hours ago
Lufthansa
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£613 Return, found 21 hours ago
£613
Return
found 21 hours ago
Select Lufthansa flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £613 found 21 hours ago
Lufthansa
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£614 Return, found 21 hours ago
£614
Return
found 21 hours ago
Select Lufthansa flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £614 found 21 hours ago
Swiss International Air Lines
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£615 Return, found 21 hours ago
£615
Return
found 21 hours ago
Select Swiss International Air Lines flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £615 found 21 hours ago
Lufthansa
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£621 Return, found 21 hours ago
£621
Return
found 21 hours ago
Select Lufthansa flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £621 found 21 hours ago
Swiss International Air Lines
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£622 Return, found 21 hours ago
£622
Return
found 21 hours ago
Select Swiss International Air Lines flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £622 found 21 hours ago
Swiss International Air Lines
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£623 Return, found 21 hours ago
£623
Return
found 21 hours ago
Select Swiss International Air Lines flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £623 found 21 hours ago
Lufthansa
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£624 Return, found 21 hours ago
£624
Return
found 21 hours ago
Select Lufthansa flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £624 found 21 hours ago
Air Canada
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£636 Return, found 21 hours ago
£636
Return
found 21 hours ago
Select Air Canada flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £636 found 21 hours ago
Austrian Airlines
Fri, 7 Aug - Thu, 17 Dec
ORD
Chicago
SOF
Sofia
£639 Return, found 21 hours ago
£639
Return
found 21 hours ago
Select Austrian Airlines flight, departing Fri, 7 Aug from Chicago to Sofia, returning Thu, 17 Dec, priced at £639 found 21 hours ago

Frequently asked questions

What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
November is typically the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF), with average return fares of approximately £482. This is about 23% lower than the average price throughout the year. November often sees lower prices as it's outside peak holiday seasons, leading to reduced demand. Other cheap months to fly from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) include January and October.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF), 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 Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
The best time to fly from Chicago O'Hare International Airport (ORD) to Sofia (SOF) for the best value is typically in November or October. Based on booking data from the past year, you can expect average return flight prices around £482 during these months. While these might not be the peak travel times, flying during these months can help you save on airfare, allowing you to enjoy your trip to Sofia more.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
There are approximately 105 connecting flights per day from Chicago O'Hare Intl. (ORD) to Sofia (SOF). Some common connection points include Pearson Intl. (YYZ), John F. Kennedy Intl. (JFK), and Frankfurt Intl. (FRA).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from ORD to SOF. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
You'll typically find the most flights from Chicago, IL (ORD-O'Hare Intl.) (ORD) to Sofia (SOF) on a Tuesday, with around 81 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Compared to other days, Tuesday offers notably more flight options.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) are in the afternoon, from 3pm to 6pm. About 43% of passengers prefer this time. Many major carriers, including Lufthansa, United Airlines and Austrian Airlines, offer flights during this window. This timing works well because it allows you to have a productive morning before heading to the airport, and you'll arrive in Sofia in the evening, ready to settle in.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
Flights from ORD to SOF with one stop typically take around 20 hours 20 minutes, covering approximately 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 Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
Select the "Business class" and "First class" filters when looking for ORD to SOF 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 Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) 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.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) 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 Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) 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 Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Sofia (SOF) 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
O'Hare Intl.
Destination airport
Sofia
Airlines serving
Air Canada, Air France, Air Serbia, Austrian Airlines, ITA Airways, Iberia, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, Turkish Airlines
Return price
£594
Distance
8316 km

Book with confidence

Compare flights from Chicago to Sofia easily and book with confidence

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

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 O'Hare Intl. (ORD) to Sofia (SOF)

The easiest way to view the best deals on flights from Chicago to Sofia 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 O'Hare Intl. to Sofia start at just £595 and range up to £639.  

To find an even better deal, try  

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

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

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from O'Hare Intl. to Sofia 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 Chicago to Sofia easily and book with confidence

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