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621 € Cheap Flights from Chicago to Sofia

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Flight deals from Chicago to Sofia

Looking for a cheap last-minute deal or the best return flight from Chicago to Sofia Airport? If you want to travel next month, return fares start from 716 €. Find the lowest prices on one-way and return tickets right here.
Sofia.621 € per passenger.Departing Wed, 25 Nov, returning Sun, 6 Dec.Return flight with LOT.Outbound indirect flight with LOT, departs from Chicago O'Hare International on Wed, 25 Nov, arriving in Sofia.Inbound indirect flight with LOT, departs from Sofia on Sun, 6 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From 621 €, select.
Sofia.628 € per passenger.Departing Mon, 10 Aug, returning Wed, 9 Sep.Return flight with Frontier Airlines and Wizz Air.Outbound indirect flight with Frontier Airlines, departs from Chicago O'Hare International on Mon, 10 Aug, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Wed, 9 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From 628 €, select.
Sofia.646 € per passenger.Departing Tue, 15 Sep, returning Tue, 13 Oct.Return flight with Porter Airlines and Wizz Air.Outbound indirect flight with Porter Airlines, departs from Chicago O'Hare International on Tue, 15 Sep, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Tue, 13 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From 646 €, select.
Sofia.646 € per passenger.Departing Tue, 1 Sep, returning Sun, 27 Sep.Return flight with Icelandair and Wizz Air.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Tue, 1 Sep, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Sun, 27 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From 646 €, select.
Sofia.646 € per passenger.Departing Tue, 20 Oct, returning Tue, 3 Nov.Return flight with Scandinavian Airlines and Wizz Air.Outbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Tue, 20 Oct, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Tue, 3 Nov, arriving in Chicago O'Hare International.Price includes taxes and charges.From 646 €, select.
Sofia.646 € per passenger.Departing Tue, 4 Aug, returning Mon, 31 Aug.Return flight with Icelandair and Ryanair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Tue, 4 Aug, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Mon, 31 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From 646 €, select.
Sofia.646 € per passenger.Departing Sat, 25 Jul, returning Tue, 15 Sep.Return flight with jetBlue and Ryanair.Outbound indirect flight with jetBlue, departs from Chicago O'Hare International on Sat, 25 Jul, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Tue, 15 Sep, arriving in Chicago O'Hare International.Price includes taxes and charges.From 646 €, select.
Sofia.649 € per passenger.Departing Wed, 17 Jun, returning Mon, 27 Jul.Return flight with Porter Airlines and Ryanair.Outbound indirect flight with Porter Airlines, departs from Chicago Midway on Wed, 17 Jun, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Mon, 27 Jul, arriving in Chicago Midway.Price includes taxes and charges.From 649 €, select.
Sofia.655 € per passenger.Departing Tue, 6 Oct, returning Tue, 20 Oct.Return flight with Scandinavian Airlines and Wizz Air.Outbound indirect flight with Scandinavian Airlines, departs from Chicago O'Hare International on Tue, 6 Oct, arriving in Sofia.Inbound indirect flight with Wizz Air, departs from Sofia on Tue, 20 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From 655 €, select.
Sofia.657 € per passenger.Departing Tue, 8 Dec, returning Tue, 22 Dec.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Chicago O'Hare International on Tue, 8 Dec, arriving in Sofia.Inbound indirect flight with Lufthansa, departs from Sofia on Tue, 22 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From 657 €, select.
Sofia.669 € per passenger.Departing Fri, 3 Jul, returning Sun, 23 Aug.Return flight with Allegiant Air and Ryanair.Outbound indirect flight with Allegiant Air, departs from Chicago Rockford on Fri, 3 Jul, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Sun, 23 Aug, arriving in Chicago O'Hare International.Price includes taxes and charges.From 669 €, select.
Sofia.670 € per passenger.Departing Wed, 26 Aug, returning Fri, 4 Dec.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Chicago O'Hare International on Wed, 26 Aug, arriving in Sofia.Inbound indirect flight with Lufthansa, departs from Sofia on Fri, 4 Dec, arriving in Chicago O'Hare International.Price includes taxes and charges.From 670 €, select.
Sofia.670 € per passenger.Departing Sun, 10 Jan, returning Sun, 24 Jan.Return flight with Icelandair and Ryanair.Outbound indirect flight with Icelandair, departs from Chicago O'Hare International on Sun, 10 Jan, arriving in Sofia.Inbound indirect flight with Ryanair, departs from Sofia on Sun, 24 Jan, arriving in Chicago O'Hare International.Price includes taxes and charges.From 670 €, select.
Sofia.671 € per passenger.Departing Wed, 25 Nov, returning Tue, 6 Apr.Return flight with United.Outbound indirect flight with United, departs from Chicago O'Hare International on Wed, 25 Nov, arriving in Sofia.Inbound indirect flight with United, departs from Sofia on Tue, 6 Apr, arriving in Chicago O'Hare International.Price includes taxes and charges.From 671 €, select.
Sofia.671 € per passenger.Departing Tue, 9 Mar, returning Tue, 23 Mar.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Chicago O'Hare International on Tue, 9 Mar, arriving in Sofia.Inbound indirect flight with Lufthansa, departs from Sofia on Tue, 23 Mar, arriving in Chicago O'Hare International.Price includes taxes and charges.From 671 €, select.
Sofia.671 € per passenger.Departing Mon, 24 Aug, returning Thu, 1 Oct.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Chicago O'Hare International on Mon, 24 Aug, arriving in Sofia.Inbound indirect flight with Turkish Airlines, departs from Sofia on Thu, 1 Oct, arriving in Chicago O'Hare International.Price includes taxes and charges.From 671 €, select.

Find the cheapest month to fly from Chicago to Sofia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chicago to Sofia flights are currently cheapest in August.
May
Find prices
Jun
from 716 €
Jul
from 700 €
Aug
from 646 €
Sep
from 646 €
Oct
from 655 €
Nov
from 671 €
Dec
from 657 €
Jan
from 670 €
Feb
from 671 €
Mar
from 671 €
Apr
from 671 €

Chicago to Sofia: Alternative routes

Compare routes from Chicago to Sofia below. You may find an airport to fly into that's cheaper, faster, or easier than Sofia.

Sofia

7km from central Sofia
ClosestCheapest
from 621 €
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Chicago to Sofia: Flight information

The things to know before you go.
Cheapest flight found621 €
Cheapest month to flyNovember

Finding cheap flights from Chicago to Sofia: Frequently asked questions

The best price we found for a return flight from Chicago to Sofia is 621 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chicago to Sofia. But we found flights with one stop from 621 €.
As of May 2026, there are no flights flying from Chicago to Sofia.
The cheapest month to fly from Chicago to Sofia is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Chicago to Sofia Airport on Wednesday, 25 November 2026.
No airlines currently offer direct flights between Chicago and Sofia Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Sofia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Sofia is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Sofia is LOT .

Travelling from Chicago to Sofia Airport (SOF): What you need to know

  • Sofia is eight hours ahead of Chicago. Sofia Airport is located in Sofia, which is in the UTC+2 timezone.

  • For stress-free travel, arrive at the airport two hours ahead of international flights and one hour before domestic departures. This will give you plenty of time to catch your flight from Chicago to SOF.

  • Going away during a peak time like July? High seasons (like spring break and Thanksgiving) can easily add another hour at check-in and security. Be extra safe and arrive up to four hours ahead of an international flight and two hours before domestic departures.

Airports in Chicago

Chicago O'Hare International Airport (ORD)

  • We make it easy to find cheap flights from Chicago to SOF with a stopover. To explore your options leaving from Chicago O'Hare International Airport (ORD), deselect 'Direct flights only.' Then, simply select a flight offering a stop long enough to tour your chosen city. Popular stopovers between ORD and SOF include:

    • Frankfurt Airport (FRA)

    • Munich Franz Joseph Strauss Airport (MUC)

    • Rome Leonardo da Vinci Fiumicino Airport (FCO)

  • Located around 27 kilometres from the centre of Chicago, ORD can be reached in about 30 minutes by car, depending on traffic. The journey on public transport takes roughly 45 minutes.

  • Have an early flight from Chicago to Sofia Airport? Avoid the last-minute rush to the terminal (and sneak in some bonus sleep) by choosing one of these hotels close to Chicago O'Hare International Airport:

  • Of all flights leaving Chicago O'Hare International Airport, 70% arrive on time at their destination.

  • The address for ORD is 10000 West O'Hare.

Chicago Midway International Airport (MDW)

  • MDW is around 16 kilometres from central Chicago. It'll take you 25 minutes or so to get to the airport if you're driving from the city centre. Public transport takes roughly 30 minutes.

  • Want to treat yourself to an extra night away before your Chicago to SOF flight? Relax in a hotel near Chicago Midway International Airport before your holiday officially begins. These stays have a room with your name on it:

  • 76% of flights taking off from Chicago Midway International Airport stick to their scheduled arrival time.

  • MDW is located at 5700 South Cicero.

Chicago Rockford International Airport (RFD)

  • RFD is roughly 145 kilometres from central Chicago. The drive from the city centre to the terminal takes about 1 hour 40 minutes. If you're considering public transport, expect a journey of around 2 hours.

  • Make catching an early Chicago to Sofia Airport flight one of the easiest parts of your trip. Book a room at one of these hotels near Chicago Rockford International Airport and get to the check-in counter with plenty of time to spare:

  • Flights that leave from RFD arrive at their final stop on schedule 71% of the time.

  • Chicago Rockford International Airport is located at 2 Airport Cir.

About Sofia Airport (SOF)

Getting from Sofia Airport (SOF) to central Sofia

  • From Sofia Airport, central Sofia is around 10 kilometres away. It takes about 25 minutes to reach the city centre by car.

  • Travelling by public transport takes about 30 minutes.

How to find the cheapest flights from Chicago to Sofia Airport (SOF)

  • Currently, 282 € is the lowest price we've found for a one-way ticket from Chicago to Sofia Airport. The cheapest price for a return flight is 621 €. Keep in mind fares may change due to demand at the time of booking.

  • To pick up cheap flights from Chicago to SOF, book ahead. Airlines generally offer lower prices when tickets first go on sale.

  • Affordable Chicago to Sofia Airport tickets are easier to find when your dates are flexible. Use the 'Whole month' tool to compare fares across each month and then choose the cheapest day.

  • There's no need to search every day to find out if prices have dropped when you create a Price Alert. We'll let you know when a better deal comes up on plane tickets from Chicago to SOF.

  • Find a cheap flight from Chicago to Sofia Airport by using filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Chicago to Sofia Airport (SOF)

  • December is the quietest month for flights from Chicago to Sofia Airport (SOF), while July is the most popular. Find the ideal time to visit Sofia based on whether you like a laid-back vibe or a more bustling atmosphere.

  • Before locking in your Chicago to SOF plane ticket, consider the kind of weather you prefer. August is the warmest month in Sofia, with temperatures ranging from 13ºC (55ºF) to 32ºC (90ºF).

  • Look for cheap tickets from Chicago to Sofia Airport in January if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between -11ºC (12ºF) and 7ºC (45ºF).

More about Sofia

  • Start your Sofia trip off on the right foot by choosing the perfect place to stay. Once you've booked your flight from Chicago to Sofia Airport, check out our range of accommodation options including:

  • Your trip to Sofia wouldn't be complete without a bit of sightseeing. Leading attractions worth exploring include Boyana Church, National Historical Museum and Cathedral of the Dormition.

Explore more of Bulgaria

  • Plovdiv is just one of the many cities in Bulgaria waiting to be discovered once you've seen the sights of Sofia. Around 129 kilometres away to the southeast, check out popular attractions including Plovdiv Roman Theatre, Municipal Institute "Ancient Plovdiv" and Museum Centre for Contemporary History.

  • Stara Zagora is another standout destination in Bulgaria and is around 193 kilometres east of Sofia. No trip is complete without dropping by Antique's mosaic, State Opera Stara Zagora and Stara Zagora Art Gallery.

Plan the rest of your trip from Chicago to Sofia

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.