SOF - ORD

$428 Find Cheap Flights from Sofia to Chicago - Compare and Save

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Everything you should know

Cheapest round-trip
$827
Typical prices: $734-$881
Multiple Airlines
Fri 11/16Sun 11/25
SOF - ORD • 2 stops
Cheapest one-way
$428
Typical prices: $638-$830
Multiple Airlines
Mon 3/5
SOF - ORD • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Sofia and Chicago O'Hare Intl Airport. 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 18% compared to booking last minute.
Insights
Insights
When to travel
November
Cheapest • 10% price drop
October
Most popular
Good to know
+1
Good to know
+1
Top layover airports
London Heathrow (LHR)
Cheapest • Avg $619 (round-trip)
Vienna Intl (VIE)
Shortest trip • 12h 49m (one-way)
Insights
Insights
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We hope you love your trip to Chicago O'Hare Intl Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sofia to O'Hare Intl (SOF-ORD)

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

Recent round-trip flight deals from Sofia to O'Hare Intl

Mon, Nov 16 - Wed, Nov 25
Multiple Airlines Logo
9:00 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
29h 20m2 stops Malaga Dublin
Multiple Airlines Logo
8:05 pm - 10:35 pmORD  Chicago O'Hare Intl-SOF Sofia
18h 30m1 stop Dublin
$827Multiple Airlines
Mon, Nov 16 - Mon, Aug 30
Turkish Airlines Logo
4:00 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
34h 20m1 stop Istanbul
Turkish Airlines Logo
8:10 pm - 3:00 pmORD  Chicago O'Hare Intl-SOF Sofia
34h 50m1 stop Istanbul
$828Turkish Airlines
Tue, Nov 10 - Tue, Aug 31
Turkish Airlines Logo
9:40 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
28h 40m1 stop Istanbul
Turkish Airlines Logo
8:10 pm - 8:15 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 05m1 stop Istanbul
$828Turkish Airlines
Tue, Nov 17 - Tue, Nov 24
Multiple Airlines Logo
5:25 pm - 3:30 pmSOF  Sofia-ORD Chicago O'Hare Intl
30h 05m2 stops Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
3:55 pm - 1:55 pmORD  Chicago O'Hare Intl-SOF Sofia
14h 00m1 stop Dublin
$829Multiple Airlines
Sun, Feb 7 - Fri, Feb 26
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
37h 20m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
$834LOT
Sun, Feb 7 - Fri, Feb 19
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
37h 20m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
$834LOT
Thu, Oct 1 - Thu, Oct 15
Lufthansa Logo
6:30 am - 12:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 25m1 stop Frankfurt am Main
Lufthansa Logo
9:40 pm - 11:15 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 35m1 stop Munich Franz Josef Strauss
$842Lufthansa
Wed, Oct 28 - Wed, Nov 4
Lufthansa Logo
6:25 am - 9:05 pmSOF  Sofia-ORD Chicago O'Hare Intl
21h 40m1 stop Frankfurt am Main
Lufthansa Logo
9:50 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
$843Lufthansa
Thu, Oct 29 - Sat, Nov 14
United Airlines Logo
6:25 am - 2:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
United Airlines Logo
8:50 am - 1:15 pmORD  Chicago O'Hare Intl-SOF Sofia
20h 25m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
$861United Airlines
Thu, Nov 19 - Fri, Nov 27
United Airlines Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
United Airlines Logo
10:32 am - 1:25 pmORD  Chicago O'Hare Intl-SOF Sofia
18h 53m2 stops Washington, D.C. Dulles Intl Frankfurt am Main
$863United Airlines
Booking Insights

Price, demand and travel trends for Sofia to Chicago O'Hare Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Sofia to Chicago O'Hare Intl Airport with more confidence.

What's the cheapest day of the week to fly from Sofia to Chicago O'Hare Intl Airport?

Monday is the cheapest day of the week to fly from Sofia to Chicago O'Hare Intl Airport, it is 5% cheaper than the average day. Sunday is the most expensive day with flight prices 18% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is the cheapest month to fly from Sofia to Chicago O'Hare Intl Airport?

  • November is the cheapest month to fly from Sofia to Chicago O'Hare Intl Airport at $720 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 22% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Sofia to Chicago O'Hare Intl Airport the cheapest?

Flights from Sofia to Chicago O'Hare Intl Airport are cheapest 16 weeks before departure. Booking in this window typically costs about 18% 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 O'Hare Intl Airport flights

Low season

July

Cheapest flight

$428
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Sofia to Chicago O'Hare Intl Airport

When to book flights from Sofia to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Sofia to O'Hare Intl 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 O'Hare Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Sofia to Chicago O'Hare Intl Airport?

    Flights from Sofia to Chicago O'Hare Intl Airport usually depart from Sofia (SOF) and arrive at Chicago O'Hare Intl (ORD).

  • What cabin classes can I book on flights from Sofia to Chicago O'Hare Intl Airport?

    Four cabin classes are available on flights from Sofia to Chicago O'Hare Intl Airport:

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

    Prices vary by airline.

  • Which airports do connecting flights from Sofia to Chicago O'Hare Intl Airport pass through?

    One-stop flights from Sofia to Chicago O'Hare Intl Airport most commonly connect through:

    • Warsaw Frederic Chopin (WAW) - 34% of one-stop connections
    • Istanbul (IST) - 22% of one-stop connections
    • Frankfurt am Main (FRA) - 18% of one-stop connections
    • Amsterdam Schiphol (AMS) - 10% of one-stop connections

    Warsaw Frederic Chopin (WAW) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Sofia to Chicago O'Hare Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 20% on the Sofia to Chicago O'Hare Intl Airport route. Monday is the cheapest departure day at $763 round-trip on average, while Sunday is the most expensive at $945, a difference of $182. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What popular places can I visit in Chicago O'Hare Intl Airport?

    Some of the most popular sights in Chicago O'Hare Intl Airport are Magnificent Mile, Grant Park and River North. These are among the most viewed places in Chicago O'Hare Intl Airport on KAYAK.

  • How expensive are last-minute Sofia to Chicago O'Hare Intl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 6% above the route average of $799. Book 16 weeks before departure for the lowest fares.

  • How long is a flight from Sofia to Chicago O'Hare Intl Airport?

    A nonstop flight from Sofia to Chicago O'Hare Intl Airport takes 0h 00m, covering 5,194 miles.

  • Do I need a passport to fly from Sofia to Chicago O'Hare Intl Airport?

    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.

  • Have flight prices from Sofia to Chicago O'Hare Intl Airport 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 $827 to $1,935. That means the highest observed fare was about 2x higher than the lowest one.

  • How are flight prices from Sofia to Chicago O'Hare Intl Airport looking right now?

    One-way fares from Sofia to Chicago O'Hare Intl Airport are currently lower than usual. Average one-way flight prices are about $653, which is 15% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Sofia to Chicago O'Hare Intl Airport?

    Flying via Vienna Intl (VIE) gives the shortest average 1-stop total travel time at 12h 49m, compared with 13h 15m via Warsaw Frederic Chopin (WAW) and 13h 34m via Munich Franz Josef Strauss (MUC).

  • What is the time difference between Sofia and Chicago O'Hare Intl Airport?

    Chicago O'Hare Intl Airport is 8 hours behind Sofia (Central Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Chicago O'Hare Intl Airport (ORD)?

    Chicago O'Hare Intl Airport (ORD) hosts 5 major car rental companies, with daily rates starting from around $17 for economy cars. Top options include:
    • Routes Car & Truck Rentals
    • Europcar
    • Hertz
    • Dollar
    • Ace

  • How much should I expect to pay for a Sofia to Chicago O'Hare Intl Airport flight?

    Round-trip flights from Sofia to Chicago O'Hare Intl Airport range from $734 to $881, with an average of $799 over the past 12 months. Anything below $734 counts as a good deal.

Your guide to booking Sofia to Chicago O'Hare Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Monday departure instead of Sunday. On this route, Monday flights average $763 - about $182 less than Sunday (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 18% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Sofia to Chicago O'Hare Intl Airport trip for November. Fares historically average $720 round-trip in that month - typically $160 less than the most expensive month, which is August (based on the last 12 months).

More options for your flight from Sofia to O'Hare Intl

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