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Flights from Chicago to Sofia

Find cheap airlines flights from Chicago to Sofia

You can choose from 3 airlines that fly from Chicago to Sofia, including Turkish Airlines, LOT Polish Airlines, and ITA Airways. Turkish Airlines has lowest fares on this route.
Turkish Airlines logo Turkish Airlines
LOT Polish Airlines logo LOT Polish Airlines
ITA Airways logo ITA Airways
Airlines are determined based on actual purchased flight tickets from Chicago to Sofia according to previous 12 months data from Trip.com.

Find flight deals from Chicago to Sofia for the next 3 months. Book one way flights from JPY 78,830 or round trip flights from JPY 116,970.

      • ORD 11:25 AM
        24h 50m
        1 stop
        SOF 8:15 PM
        Chicago - Sofia | Sun, May 10 | Turkish Airlines
        SOF 3:50 PM
        25h 50m
        1 stop
        ORD 9:40 AM
        Sofia - Chicago | Fri, May 15 | Turkish Airlines
        JPY 116,970 JPY 329,520
        65% off
        65% off
        JPY 329,520 JPY 116,970
      • ORD 9:50 PM
        12h 10m
        1 stop
        SOF 6:00 PM
        Chicago - Sofia | Sun, May 10 | LOT Polish Airlines
        SOF 2:40 PM
        13h 10m
        1 stop
        ORD 7:50 PM
        Sofia - Chicago | Fri, May 15 | LOT Polish Airlines
        JPY 138,040 JPY 329,520
        57% off
        57% off
        JPY 329,520 JPY 138,040
      • ORD 7:05 PM
        17h 5m
        1 stop
        SOF 8:10 PM
        Chicago - Sofia | Sun, May 10 | British Airways
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 194,160 JPY 329,520
        41% off
        41% off
        JPY 329,520 JPY 194,160
      • ORD 11:20 PM
        19h 40m
        1 stop
        SOF 3:00 AM
        Chicago - Sofia | Sun, May 10 | Air Serbia
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 200,140
        39% off
        JPY 329,520 JPY 200,140
      • ORD 4:30 PM
        14h
        1 stop
        SOF 2:30 PM
        Chicago - Sofia | Sun, May 10 | Iberia
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 212,200
        36% off
        JPY 329,520 JPY 212,200
      • ORD 3:35 PM
        12h 35m
        1 stop
        SOF 12:10 PM
        Chicago - Sofia | Sun, May 10 | United Airlines
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 219,410
        33% off
        JPY 329,520 JPY 219,410
      • ORD 10:30 PM
        13h 40m
        1 stop
        SOF 8:10 PM
        Chicago - Sofia | Sun, May 10 | Finnair
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 221,070
        33% off
        JPY 329,520 JPY 221,070
      • ORD 10:30 PM
        13h 40m
        1 stop
        SOF 8:10 PM
        Chicago - Sofia | Sun, May 10 | American Airlines
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 221,490
        33% off
        JPY 329,520 JPY 221,490
      • ORD 3:35 PM
        12h 35m
        1 stop
        SOF 12:10 PM
        Chicago - Sofia | Sun, May 10 | Lufthansa
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 232,740
        28% off
        JPY 329,520 JPY 232,740
      • ORD 4:20 PM
        11h 20m
        1 stop
        SOF 11:40 AM
        Chicago - Sofia | Sun, May 10 | Austrian Airlines
        SOF 5:05 PM
        30h
        1 stop
        ORD 3:05 PM
        Sofia - Chicago | Fri, May 15 | Qatar Airways
        JPY 243,840
        26% off
        JPY 329,520 JPY 243,840
      • CHI 1:00 PM
        17h 25m
        1 stop
        SOF Invalid Date
        Chicago - Sofia | Sun, Apr 19 | Normal Airline
        SOF 3:00 PM
        6h
        Nonstop
        CHI 4:00 PM
        Sofia - Chicago | Tue, Apr 21 | Normal Airline
        Find more flights
        Find more flights
      • ORD 8:10 PM
        34h 50m
        1 stop
        SOF 3:00 PM
        Chicago - Sofia | Fri, Apr 24 | Turkish Airlines
        JPY 78,830 JPY 131,100
        40% off
        40% off
        JPY 131,100 JPY 78,830
      • ORD 8:10 PM
        33h 5m
        1 stop
        SOF 1:15 PM
        Chicago - Sofia | Thu, Apr 23 | Turkish Airlines
        JPY 78,830 JPY 131,100
        40% off
        40% off
        JPY 131,100 JPY 78,830
      • ORD 8:10 PM
        34h 50m
        1 stop
        SOF 3:00 PM
        Chicago - Sofia | Wed, Apr 22 | Turkish Airlines
        JPY 78,830 JPY 131,100
        40% off
        40% off
        JPY 131,100 JPY 78,830
      • ORD 8:10 PM
        34h 50m
        1 stop
        SOF 3:00 PM
        Chicago - Sofia | Tue, Apr 21 | Turkish Airlines
        JPY 78,830
        40% off
        JPY 131,100 JPY 78,830
      • ORD 8:10 PM
        34h 50m
        1 stop
        SOF 3:00 PM
        Chicago - Sofia | Mon, Apr 20 | Turkish Airlines
        JPY 78,830
        40% off
        JPY 131,100 JPY 78,830
      • ORD 8:10 PM
        33h 5m
        1 stop
        SOF 1:15 PM
        Chicago - Sofia | Sat, Apr 25 | Turkish Airlines
        JPY 84,760
        35% off
        JPY 131,100 JPY 84,760
      • ORD 8:10 PM
        34h 50m
        1 stop
        SOF 3:00 PM
        Chicago - Sofia | Sun, Apr 19 | Turkish Airlines
        JPY 84,760
        35% off
        JPY 131,100 JPY 84,760
      • ORD 10:30 PM
        19h
        1 stop
        SOF 1:30 AM
        Chicago - Sofia | Mon, Apr 20 | American Airlines
        JPY 85,210
        35% off
        JPY 131,100 JPY 85,210
      • ORD 4:55 PM
        22h 15m
        1 stop
        SOF 11:10 PM
        Chicago - Sofia | Sat, Apr 25 | American Airlines
        JPY 94,330
        28% off
        JPY 131,100 JPY 94,330
      • ORD 5:10 PM
        12h 40m
        1 stop
        SOF 1:50 PM
        Chicago - Sofia | Mon, Apr 20 | LOT Polish Airlines
        JPY 97,010
        26% off
        JPY 131,100 JPY 97,010
      • CHI 1:00 PM
        17h 25m
        1 stop
        SOF Invalid Date
        Chicago - Sofia | Sun, Apr 19 | Normal Airline
        Find more flights
        Find more flights

Displayed flight fares from Chicago to Sofia are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Flight Info | Chicago to Sofia

The distance between Chicago and Sofia is approximately 8,357.53 km. Based on Trip.com's data travel demand peaks in January. The off-season for travel is September.

Cheapest one-way flight priceJPY 78,830
Cheapest round-trip ticket priceJPY 116,970
Off-season for travelSeptember
Peak season for travelJanuary
Flight distance8,357.53 km
Popular airlineTurkish Airlines
Flight statistics for the Chicago–Sofia route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Chicago to Sofia (CHI-SOF)?

    Based on Trip.com data, Turkish Airlines offers one-way fares as low as JPY 78,830 on Cheapest nonstop routes (e.g. ORD to SOF on Fri, Apr 24), while Turkish Airlines offers Cheapest nonstop round-trips from JPY 116,970 departing on Sun, May 10 and returning on Fri, May 15.
  • At the moment, you can catch a nonstop flight from Chicago to Sofia with the following airlines, including: ITA Airways Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chicago to Sofia is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Chicago to Sofia, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Apr 24, with one-way flights priced at just JPY 78,830.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Turkish Airlines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sofia travel is around January.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Chicago to Sofia is September, when demand for travel is lower.
  • After crunching the numbers on our April flight calendar, it's currently cheapest to fly from Chicago to Sofia on April 24, 2026 with Turkish Airlines, with prices starting at JPY 93,820.
  • You can land at any one of the following hubs in Sofia, with Chicago O'Hare International Airport to Sofia International Airport (ORD-SOF) is by far the most common option on this route: Sofia International Airport (SOF).
  • The time difference between Sofia and Chicago is 8h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

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Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

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Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.