$338 Find Cheap Flights from Chicago to Sofia - Compare and Save

Three cabin classes are available on flights from Chicago to Sofia:

• Economy Class
• Premium Economy Class
• Business Class

A nonstop flight from Chicago to Sofia takes 00m, covering 5,189 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Round-trip flights from Chicago to Sofia range from $698 to $1,133, with an average of $894 over the past 12 months. Anything below $698 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 10% above the $894 route average. Book 7 weeks before departure for the lowest fares.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $706 to $3,061. That means the highest observed fare was about 4x higher than the lowest one.

One-way fares from Chicago to Sofia are currently higher than usual. Average one-way flight prices are about $901, which is 83% above the typical average for this route.

Sofia Airport (SOF) hosts 5 major car rental companies, with daily rates starting from around $1 for economy cars. Top options include:

• MEXRENTACAR
• Easyrent
• Top Rent a Car - Bulgaria
• NU Car
• Priceless

Flights from Chicago to Sofia may depart from several airports in Chicago area, including Chicago Midway (MDW), Chicago O'Hare Intl (ORD) and Chicago Greater Rockford (RFD). Flights usually arrive at Sofia (SOF).

One-stop flights from Chicago to Sofia most commonly connect through:

• Istanbul (IST) - 32% of one-stop connections
• Warsaw Frederic Chopin (WAW) - 21% of one-stop connections
• Frankfurt am Main (FRA) - 17% of one-stop connections
• Munich Franz Josef Strauss (MUC) - 9% of one-stop connections

Yes. Flexible dates can save you up to 9% on flights from Chicago to Sofia. Sunday is the cheapest departure day at $846 round-trip on average, while Thursday is the most expensive at $929, a difference of $83.

Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Flying via Vienna Intl (VIE) gives the shortest average 1-stop total travel time at 12h 47m, compared with 13h 12m via Warsaw Frederic Chopin (WAW) and 13h 46m via Frankfurt am Main (FRA).

Sofia is 8 hours ahead of Chicago (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Some of the most popular sights in Sofia are Vasil Levski National Stadium, National Palace of Culture and Central Sofia Market Hall. These are among the most viewed places in Sofia on KAYAK.

If you intend to stay at a hotel within SOF grounds, you're in luck, as the airport boasts the Ibis Sofia Airport. A 10min walk from Terminal A, this hotel boasts elite rooms. Thus, it's safe to say that your comfort is guaranteed at this hotel.

In case you'd like to move from Terminal 1 to 2, or vice versa, you can board the free shuttle bus that connects these terminals. Daily, this bus operates from 5 am to 11 pm. It covers the route every 15min.

If you'd like to breastfeed your infant while waiting for your flight to Sofia at ORD, you need not worry about struggling to find a private space to feed your baby, as ORD features several nursing rooms. The said nursing rooms are near Gate B10 in Terminal 1, on the walkway between Gates E5 and F9 in Terminal 2, near the Urban Garden in Terminal 3's rotunda, and a short distance from Gate M14 in Terminal 5.

If you need assistance at MDW, you should visit the airport's information desk, situated at the Main Entrance of the airport's terminal. At this desk, you'll get all the help you need, as it is manned by informed airport staff.