ORD - SOF

$330 Find Cheap Flights from Chicago O'Hare Airport to Sofia - Compare and Save

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Everything you should know

Cheapest round-trip
$685
Typical prices: $698-$1,133
Lufthansa
Fri 1/19Wed 2/7
ORD - SOF • 1 stop
Cheapest one-way
$330
Typical prices: $439-$681
British Airways
Wed 1/17
ORD - SOF • 1 stop
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
7 weeks
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 27% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 33% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Istanbul (IST)
Cheapest • Avg $770 (round-trip)
Vienna Intl (VIE)
Shortest trip • 12h 47m (one-way)
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Insights
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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

Tue, Jan 19 - Sun, Feb 7
Lufthansa Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
15h 10m2 stops Munich Franz Josef Strauss Frankfurt am Main
$685Lufthansa
Wed, Jan 20 - Sun, Feb 7
Lufthansa Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
Lufthansa Logo
6:00 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
15h 10m2 stops Munich Franz Josef Strauss Frankfurt am Main
$685Lufthansa
Sun, Oct 4 - Fri, Feb 26
British Airways Logo
5:19 pm - 7:20 pmORD  Chicago O'Hare Intl-SOF Sofia
18h 01m2 stops Pittsburgh London Heathrow
British Airways Logo
8:30 pm - 1:45 pmSOF  Sofia-ORD Chicago O'Hare Intl
25h 15m1 stop London Heathrow
$685British Airways
Fri, Oct 23 - Tue, Nov 3
United Airlines Logo
2:20 pm - 12:10 pmORD  Chicago O'Hare Intl-SOF Sofia
13h 50m2 stops Zurich Munich Franz Josef Strauss
United Airlines Logo
7:55 am - 6:54 pmSOF  Sofia-ORD Chicago O'Hare Intl
18h 59m2 stops Vienna Intl Washington, D.C. Dulles Intl
$686United Airlines
Sun, Oct 11 - Tue, Oct 20
Air Canada Logo
8:40 pm - 12:10 pmORD  Chicago O'Hare Intl-SOF Sofia
31h 30m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Air Canada Logo
2:10 pm - 10:06 pmSOF  Sofia-ORD Chicago O'Hare Intl
15h 56m2 stops Frankfurt am Main Toronto Pearson Intl
$686Air Canada
Thu, Jan 21 - Sun, Feb 7
British Airways Logo
10:14 am - 7:20 pmORD  Chicago O'Hare Intl-SOF Sofia
25h 06m2 stops Newark London Heathrow
British Airways Logo
7:45 pm - 1:45 pmSOF  Sofia-ORD Chicago O'Hare Intl
26h 00m1 stop London Heathrow
$687British Airways
Wed, Oct 7 - Tue, Oct 20
LOT Logo
9:50 pm - 6:00 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 10m1 stop Warsaw Frederic Chopin
LOT Logo
6:45 pm - 7:50 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 05m1 stop Warsaw Frederic Chopin
$691LOT
Sat, Jan 23 - Tue, Feb 9
United Airlines Logo
3:15 pm - 1:25 pmORD  Chicago O'Hare Intl-SOF Sofia
14h 10m1 stop Frankfurt am Main
United Airlines Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
$694United Airlines
Thu, Nov 5 - Thu, Nov 19
Multiple Airlines Logo
11:05 am - 1:25 pmORD  Chicago O'Hare Intl-SOF Sofia
18h 20m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
7:55 am - 4:44 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 49m2 stops Vienna Intl Toronto Pearson Intl
$694Multiple Airlines
Fri, Feb 26 - Tue, Mar 9
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Warsaw Frederic Chopin
$720LOT
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 from Chicago O'Hare Intl Airport to Sofia 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 start at $685. Prices are below average for this route right now, with typical round-trip fares ranging from $698 to $1,133. The lowest price found in the past 5 days was $685 on Lufthansa.

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

Sunday is the cheapest day of the week to fly from Chicago O'Hare Intl Airport to Sofia, it is 6% cheaper than the average day. Thursday is the most expensive day with flight prices 3% higher than average. Based on deals found by KAYAK users in the last 12 months.

What is 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 $595 round-trip.
  • June ($1,109) and July ($1,096) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 86% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

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

Flights from Chicago O'Hare Intl Airport to Sofia are cheapest 7 weeks before departure. Booking in this window typically costs about 27% 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

$330
Best time to beat the crowds with an average 33% drop in price.
Most popular time to fly with an average 23% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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

  • 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) - 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

    Istanbul (IST) handles the largest share of one-stop connections on this route.

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

    On the Chicago O'Hare Intl Airport to Sofia route, being flexible with your departure day can save you up to 9%. Sunday is the cheapest day at $846 round-trip on average, while Thursday is the most expensive at $929: a $83 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What popular places can I visit in Sofia?

    Some of the most popular sights in Sofia are Sofia City Centre, The St. Alexander Nevsky Cathedral and Vitosha Boulevard. These are among the most viewed places in Sofia on KAYAK.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 10% above the route average of $894. Book 7 weeks before departure for the lowest fares.

  • 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 0h 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.

  • Have flight prices from Chicago O'Hare Intl Airport to Sofia 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 $685 to $4,442. That means the highest observed fare was about 6x higher than the lowest one.

  • 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 in line with typical prices for this route. Average one-way fares are about $485.

  • 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 47m, compared with 13h 12m via Warsaw Frederic Chopin (WAW) and 13h 46m via Frankfurt am Main (FRA).

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

    Sofia is 8 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 car rental options are available at Sofia Airport (SOF)?

    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

  • 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 $698 to $1,133, with an average of $894 over the past 12 months. Anything below $698 counts as a good deal.

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 can be flexible, aim for a Sunday departure instead of Thursday. On this route, Sunday flights average $846 - about $83 less than Thursday (9% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 7 weeks before you fly. On this route, that window historically saves about 27% 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 $595 round-trip in that month - typically $514 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
    - Avel Guest House

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
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