ORD - SOF

$306 Find Cheap Flights from Chicago O'Hare Airport to Sofia - Compare and Save

1 adult
1 adult, Economy, 0 bags

Save 25% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Everything you should know

Cheapest round-trip
$675
Typical prices: $719-$1,155
Turkish Airlines
Thu 11/29Sat 12/15
ORD - SOF • 1 stop
Cheapest one-way
$306
Typical prices: $463-$724
Multiple Airlines
Thu 11/15
ORD - SOF • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Chicago O'Hare Intl Airport and Sofia. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
25 weeks
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 35% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Istanbul (IST)
Cheapest • Avg $796 (round-trip)
Vienna Intl (VIE)
Shortest trip • 12h 50m (one-way)
Insights
Insights
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sofia!
Flight Deals
Booking Insights
Flight Deals

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

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

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

Sun, Nov 29 - Tue, Dec 15
Turkish Airlines Logo
11:45 am - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
25h 10m1 stop Istanbul
Turkish Airlines Logo
9:45 pm - 10:00 amSOF  Sofia-ORD Chicago O'Hare Intl
20h 15m1 stop Istanbul
$675Turkish Airlines
Sun, Nov 29 - Tue, Dec 15
Turkish Airlines Logo
11:45 am - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
25h 10m1 stop Istanbul
Turkish Airlines Logo
9:45 pm - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
28h 35m1 stop Istanbul
$676Turkish Airlines
Wed, Apr 7 - Wed, Apr 21
LOT Logo
9:50 pm - 1:50 pmORD  Chicago O'Hare Intl-SOF Sofia
32h 00m1 stop Warsaw Frederic Chopin
LOT Logo
5:30 am - 7:50 pmSOF  Sofia-ORD Chicago O'Hare Intl
22h 20m1 stop Warsaw Frederic Chopin
$680LOT
Wed, Jan 27 - Wed, Feb 10
Multiple Airlines Logo
6:50 pm - 3:25 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 35m1 stop Zurich
Multiple Airlines Logo
6:25 am - 6:45 pmSOF  Sofia-ORD Chicago O'Hare Intl
20h 20m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$687Multiple Airlines
Tue, Mar 2 - Wed, Mar 10
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
LOT Logo
6:40 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 15m1 stop Warsaw Frederic Chopin
$688LOT
Tue, Feb 23 - Tue, Mar 9
Multiple Airlines Logo
9:50 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
6:25 am - 6:40 pmSOF  Sofia-ORD Chicago O'Hare Intl
20h 15m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$688Multiple Airlines
Wed, Apr 7 - Wed, Apr 14
Lufthansa Logo
3:35 pm - 6:45 pmORD  Chicago O'Hare Intl-SOF Sofia
19h 10m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:20 am - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
21h 35m1 stop Frankfurt am Main
$695Lufthansa
Wed, Mar 31 - Wed, Apr 14
Lufthansa Logo
9:40 pm - 11:05 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 25m1 stop Munich Franz Josef Strauss
Lufthansa Logo
1:55 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 00m1 stop Frankfurt am Main
$695Lufthansa
Sun, Apr 18 - Wed, Apr 21
United Airlines Logo
3:35 pm - 12:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 45m1 stop Munich Franz Josef Strauss
United Airlines Logo
1:55 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 00m1 stop Frankfurt am Main
$706United Airlines
Sun, Apr 18 - Wed, Apr 21
United Airlines Logo
3:35 pm - 12:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 45m1 stop Munich Franz Josef Strauss
United Airlines Logo
6:20 am - 2:48 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 28m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$709United Airlines
Booking Insights

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

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

How much is a round-trip flight from Chicago O'Hare Intl Airport to Sofia?

Round-trip flights from Chicago O'Hare Intl Airport to Sofia typically range from $719 to $1,155. The lowest price found in the past 5 days was $675, on Turkish Airlines.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Sofia. It’s 7% cheaper than the average day, while Thursday is the most expensive, with prices 6% higher.

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

•February is the cheapest month to fly from Chicago O'Hare Intl Airport to Sofia at $597 round-trip.
•June ($1,182) and July ($1,098) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Chicago O'Hare Intl Airport to Sofia are cheapest 25 weeks before departure. Booking in this window typically costs about 31% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Chicago O'Hare Intl Airport to Sofia flights

Low season

February

Cheapest flight

$306
Beat the crowds with an average 62% drop in travelers.
The most popular month to fly with an average 113% increase in travelers.
One-way flight from Chicago O'Hare Intl Airport to Sofia

When to book flights from O'Hare Intl to Sofia

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

Your Chicago O'Hare Intl Airport to Sofia 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 Chicago O'Hare Intl Airport to Sofia?

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

    • Economy Class
    • Premium Economy Class
    • Business Class

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

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

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

    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 Chicago O'Hare Intl Airport to Sofia flight?

    Round-trip flights from Chicago O'Hare Intl Airport to Sofia range from $719 to $1,155, with an average of $914 over the past 12 months. Anything below $719 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 16% above the $914 route average. Book 25 weeks before departure for the lowest fares.

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

    One-way fares from Chicago O'Hare Intl Airport to Sofia are currently higher than usual. Average one-way flight prices are about $681, which is 22% above the typical average for this route.

  • What car rental options are available at Sofia Airport (SOF)?

    Sofia Airport (SOF) hosts 5 major car rental companies, with daily rates averaging $21 for economy cars. Top options include:

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

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

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

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

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

    • Istanbul (IST) - 33% of one-stop connections
    • Warsaw Frederic Chopin (WAW) - 23% of one-stop connections
    • Frankfurt am Main (FRA) - 15% of one-stop connections
    • Munich Franz Josef Strauss (MUC) - 9% of one-stop connections

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

    Yes. Flexible dates can save you up to 12% on flights from Chicago O'Hare Intl Airport to Sofia. Sunday is the cheapest departure day at $858 round-trip on average, while Thursday is the most expensive at $974, a difference of $116.

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

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

    Flying via Vienna Intl (VIE) gives the shortest average 1-stop total travel time at 12h 50m, compared with 13h 13m via Warsaw Frederic Chopin (WAW) and 13h 42m via Frankfurt am Main (FRA).

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

    Sofia is 7 hours ahead of Chicago O'Hare Intl Airport (Eastern European Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Sofia?

    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.

Your guide to booking Chicago O'Hare Intl Airport to Sofia 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 Sunday departure and avoid flying on Thursday. On this route, Sunday flights average $858, about $116 less than Thursday fares (12% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 31% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Chicago O'Hare Intl Airport to Sofia trip for February. Fares historically average $597 round-trip in that month - typically $585 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Sofia Airport.

    • Hotel Premier Airport Sofia
    • ibis Sofia Airport
    • Hotel Consul

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

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

Car rentals in Sofia
Hotels in Sofia
Vacations in Sofia