What to know about flights from Chicago to Sofia?

The distance between Chicago and Sofia is approximately 8,357.53 km.

Cheapest one-way
TWD 13,434
Turkish Airlines Turkish Airlines CHI-SOF 19h 25m · 1 stop Mon, Jan 4
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Cheapest round-trip
TWD 37,537
Turkish Airlines Turkish Airlines CHI-SOF 12h 55m · 2 stops Mon, Dec 14 - Sat, Dec 19
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Route details
8,357.53 km
Flight distance

Explore the cheapest one-way and round-trip flights from Chicago to Sofia over the next 90 days, with one-way fares from TWD 13,434 and round-trip from TWD 37,537. Based on Trip.com's latest 7-day flight data.

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.

Which airlines are the most popular for Chicago to Sofia flights?

You can choose from 1 airlines that fly from Chicago to Sofia, including Turkish Airlines, Turkish Airlines has lowest fares on this route.
Turkish Airlines logo Turkish Airlines
Airlines are determined based on actual purchased flight tickets from Chicago to Sofia according to previous 12 months data from Trip.com.

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 TWD 13,434 on Cheapest nonstop routes (e.g. ORD to SOF on Mon, Jan 4), while Turkish Airlines offers Cheapest nonstop round-trips from TWD 37,537 departing on Mon, Dec 14 and returning on Sat, Dec 19.
  • 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 Mon, Jan 4, with one-way flights priced at just TWD 13,434.
    · 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.
    · Get exclusive promo codes for Trip.com app users.
  • After crunching the numbers on our November flight calendar, it's currently cheapest to fly from Chicago to Sofia on Thu, Nov 12 with Turkish Airlines, with prices starting at TWD 13,907.
  • You can arrive at any of the following airports in Sofia: Sofia Airport (SOF). Flights from O'Hare International Airport to Sofia Airport (ORD-SOF) are by far the most popular option for this route.
  • 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Chicago to Sofia is TWD 23,253. Fares vary by travel date, airline and availability.
  • Enter Chicago and Sofia, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveler details and complete payment to receive your confirmation.

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.