SOF - CHI

$393 Find Cheap Flights from Sofia to Chicago - Compare and Save

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Everything you should know

Cheapest round-trip
$808
Typical prices: $752-$924
Multiple Airlines
Tue 11/20Sat 3/24
SOF - ORD • 2 stops
Cheapest one-way
$393
Typical prices: $630-$833
Multiple Airlines
Fri 11/9
SOF - ORD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Sofia and Chicago. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 23% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 8% price drop
September
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Amsterdam Schiphol (AMS)
Cheapest • Avg $797 (round-trip)
Vienna Intl (VIE)
Shortest trip • 12h 49m (one-way)
Insights
Insights
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to Chicago (SOF-CHI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sofia to Chicago

Fri, Nov 20 - Wed, Mar 24
Multiple Airlines Logo
9:45 pm - 3:30 pmSOF  Sofia-ORD Chicago O'Hare Intl
49h 45m2 stops Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
10:50 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
$808Multiple Airlines
Wed, Jan 20 - Wed, Jan 27
Multiple Airlines Logo
4:00 pm - 5:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 20m3 stops Belgrade Nikola Tesla Kastrup Copenhagen Reykjavik Keflavik Intl
Multiple Airlines Logo
6:50 pm - 3:25 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 35m1 stop Zurich
$810Multiple Airlines
Fri, Dec 11 - Tue, Mar 9
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Warsaw Frederic Chopin
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
$817LOT
Mon, Dec 7 - Wed, Mar 3
LOT Logo
6:40 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 15m1 stop Warsaw Frederic Chopin
LOT Logo
9:50 pm - 1:50 pmORD  Chicago O'Hare Intl-SOF Sofia
32h 00m1 stop Warsaw Frederic Chopin
$821LOT
Fri, Jan 15 - Mon, Mar 1
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
20h 55m1 stop Munich Franz Josef Strauss
$841Lufthansa
Sat, Jan 16 - Sat, Feb 27
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
Lufthansa Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
$841Lufthansa
Thu, Nov 19 - Sat, Nov 28
Turkish Airlines Logo
9:45 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
28h 35m1 stop Istanbul
Turkish Airlines Logo
8:15 pm - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 40m1 stop Istanbul
$865Turkish Airlines
Tue, Dec 8 - Sat, Mar 6
Turkish Airlines Logo
4:00 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
34h 20m1 stop Istanbul
Turkish Airlines Logo
11:45 am - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
25h 10m1 stop Istanbul
$867Turkish Airlines
Fri, Nov 20 - Fri, Dec 4
Austrian Airlines Logo
12:35 pm - 2:00 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 25m1 stop Vienna Intl
Austrian Airlines Logo
4:20 pm - 11:50 amORD  Chicago O'Hare Intl-SOF Sofia
11h 30m1 stop Vienna Intl
$871Austrian Airlines
Thu, Nov 19 - Thu, Dec 3
Austrian Airlines Logo
7:55 am - 2:00 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 05m1 stop Vienna Intl
Austrian Airlines Logo
1:30 pm - 11:55 pmORD  Chicago O'Hare Intl-SOF Sofia
26h 25m2 stops Washington, D.C. Dulles Intl Vienna Intl
$890Austrian Airlines
Booking Insights

Price, demand and travel trends for Sofia to Chicago flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What is the cheapest Sofia to Chicago flight route?

There's little price difference between Sofia to Chicago routes. They average around $836 round-trip, based on KAYAK data over the past 12 months.

What's the cheapest day of the week to fly from Sofia to Chicago?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Sofia to Chicago. It’s 8% cheaper than the average day, while Sunday is the most expensive, with prices 14% higher.

What’s the cheapest month to fly from Sofia to Chicago?

•February is the cheapest month to fly from Sofia to Chicago at $767 round-trip.
•August ($880) and July ($866) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 14% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Sofia to Chicago the cheapest?

Flights from Sofia to Chicago are cheapest 16 weeks before departure. Booking in this window typically costs about 23% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Sofia to Chicago flights

Low season

July

Cheapest flight

$393
Beat the crowds with an average 29% drop in travelers.
The most popular month to fly with an average 37% increase in travelers.
One-way flight from Sofia to Chicago O'Hare Intl Airport

When to book flights from Sofia to Chicago

Are your dates flexible? Find out the best times to travel from Sofia to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Sofia to Chicago flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Sofia to Chicago?

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

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Sofia to Chicago?

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

  • Do I need a passport to fly from Sofia to Chicago?

    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.

  • How much should I expect to pay for a Sofia to Chicago flight?

    Round-trip flights from Sofia to Chicago range from $752 to $924, with an average of $836 over the past 12 months. Anything below $752 counts as a good deal.

  • How expensive are last-minute Sofia to Chicago flights?

    Last-minute fares on this route (booked within two weeks of departure) run 7% above the $836 route average. Book 16 weeks before departure for the lowest fares.

  • Have flight prices from Sofia to Chicago changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $808 to $2,002. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from Sofia to Chicago looking right now?

    One-way fares from Sofia to Chicago are currently higher than usual. Average one-way flight prices are about $900, which is 18% above the typical average for this route.

  • What car rental options are available in Chicago?

    Since Chicago is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
    Near Chicago O'Hare Intl Airport (ORD) — daily rates averaging $64:

    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Ace
    • Dollar

    Near Chicago Midway Airport (MDW) — daily rates averaging $84:

    • Hertz
    • Dollar
    • Budget
    • Alamo
    • Rent-A-Wreck

    Near Chicago Greater Rockford Airport (RFD) — daily rates averaging $81:

    • Alamo
    • Enterprise Rent-A-Car
    • Budget
    • Avis
    • National

  • Which airports can I use when flying from Sofia to Chicago?

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

  • Which airports do connecting flights from Sofia to Chicago pass through?

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

    • Warsaw Frederic Chopin (WAW) - 34% of one-stop connections
    • Istanbul (IST) - 21% of one-stop connections
    • Frankfurt am Main (FRA) - 20% of one-stop connections
    • Amsterdam Schiphol (AMS) - 9% of one-stop connections

  • Can I save money by using flexible dates for flights from Sofia to Chicago?

    Yes. Flexible dates can save you up to 20% on flights from Sofia to Chicago. Friday is the cheapest departure day at $777 round-trip on average, while Sunday is the most expensive at $960, a difference of $183.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Sofia to Chicago?

    Flying via Vienna Intl (VIE) gives the shortest average 1-stop total travel time at 12h 49m, compared with 13h 11m via Warsaw Frederic Chopin (WAW) and 13h 29m via Munich Franz Josef Strauss (MUC).

  • What is the time difference between Sofia and Chicago?

    Chicago is 7 hours behind Sofia (Central Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Chicago?

    Some of the most popular sights in Chicago are Magnificent Mile, Grant Park and Soldier Field. These are among the most viewed places in Chicago on KAYAK.

Your guide to booking Sofia to Chicago flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Sunday. On this route, Friday flights average $777, about $183 less than Sunday fares (19% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 23% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Sofia to Chicago trip for February. Fares historically average $767 round-trip in that month - typically $113 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Chicago Midway Airport.

    • DoubleTree by Hilton Chicago Midway Airport
    • Holiday Inn Chicago - Midway Airport S by IHG
    • Skylark Motel Chicago Midway Airport

More options for your flight from Sofia to Chicago

Complete your trip to Chicago with a hotel stay or car rental

Car rentals in Chicago
Hotels in Chicago
Vacations in Chicago