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Cheap flights from Sofia to Chicago from $409

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sofia to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:15 am - 4:45 pmSOF  Sofia-ORD Chicago O'Hare Intl
37h 30m2 stops Warsaw Modlin Kastrup Copenhagen
Multiple Airlines Logo
8:15 pm - 8:50 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 35m1 stop Istanbul
$820Multiple Airlines
Fri, Nov 13 - Thu, Nov 26
Multiple Airlines Logo
10:10 pm - 3:30 pmSOF  Sofia-ORD Chicago O'Hare Intl
25h 20m2 stops Barcelona-El Prat Lisbon Humberto Delgado
Multiple Airlines Logo
8:10 pm - 8:45 amORD  Chicago O'Hare Intl-SOF Sofia
28h 35m1 stop Istanbul
$824Multiple Airlines
Sat, Nov 7 - Mon, Aug 30
LOT Logo
2:30 pm - 3:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
32h 40m1 stop Warsaw Frederic Chopin
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
$828LOT
Sat, Oct 10 - Thu, Dec 10
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
$833LOT
Thu, Nov 5 - Sat, Nov 21
Turkish Airlines Logo
9:35 am - 6:15 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 40m1 stop Istanbul
Turkish Airlines Logo
8:15 pm - 8:50 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 35m1 stop Istanbul
$845Turkish Airlines
Wed, Oct 14 - Mon, Nov 30
Lufthansa Logo
2:10 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 45m1 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
$849Lufthansa
Thu, Oct 22 - Thu, Feb 25
Austrian Airlines Logo
8:00 am - 1:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Vienna Intl
Austrian Airlines Logo
4:20 pm - 6:00 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 40m1 stop Vienna Intl
$850Austrian Airlines
Tue, Oct 6 - Thu, Nov 5
Lufthansa Logo
2:10 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 45m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 1:15 pmORD  Chicago O'Hare Intl-SOF Sofia
11h 15m1 stop Munich Franz Josef Strauss
$851Lufthansa
Fri, Oct 23 - Fri, Nov 27
Austrian Airlines Logo
8:00 am - 1:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Vienna Intl
Austrian Airlines Logo
1:30 pm - 5:30 pmORD  Chicago O'Hare Intl-SOF Sofia
20h 00m2 stops Washington, D.C. Dulles Intl Vienna Intl
$857Austrian Airlines
Tue, Oct 13 - Fri, Dec 4
Turkish Airlines Logo
9:35 am - 6:15 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 40m1 stop Istanbul
Turkish Airlines Logo
11:45 am - 8:40 amORD  Chicago O'Hare Intl-SOF Sofia
12h 55m1 stop Istanbul
$963Turkish Airlines
Wed, Oct 14 - Wed, Dec 2

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LOT flights from Sofia to Chicago O'Hare Intl Airport

Our best LOT deals on Sofia to Chicago O'Hare Intl Airport flight tickets
LOT
Oct 10
SOF2:30 pmSofia
32h 40m
1 stop
ORD3:10 pmChicago O'Hare Intl
Dec 10
ORD9:50 pmChicago O'Hare Intl
12h 05m
1 stop
SOF5:55 pmSofia
$828
LOT
Nov 5
SOF2:35 pmSofia
13h 20m
1 stop
ORD7:55 pmChicago O'Hare Intl
Nov 21
ORD9:50 pmChicago O'Hare Intl
12h 05m
1 stop
SOF5:55 pmSofia
$833
LOT
Oct 12
SOF6:45 pmSofia
33h 05m
1 stop
ORD7:50 pmChicago O'Hare Intl
Dec 9
ORD9:50 pmChicago O'Hare Intl
32h 00m
1 stop
SOF1:50 pmSofia
$837

British Airways flights from Sofia to Chicago O'Hare Intl Airport

Our best British Airways deals on Sofia to Chicago O'Hare Intl Airport flight tickets
British Airways
Oct 19
SOF8:10 pmSofia
30h 05m
1 stop
ORD6:15 pmChicago O'Hare Intl
Dec 6
ORD9:00 amChicago O'Hare Intl
23h 20m
2 stops
SOF4:20 pmSofia
$834
British Airways
Oct 14
SOF9:25 pmSofia
32h 35m
2 stops
ORD10:00 pmChicago O'Hare Intl
Dec 11
ORD8:57 pmChicago O'Hare Intl
37h 38m
2 stops
SOF6:35 pmSofia
$838
British Airways
Oct 14
SOF9:25 pmSofia
34h 11m
2 stops
ORD11:36 pmChicago O'Hare Intl
Dec 10
ORD8:45 amChicago O'Hare Intl
26h 35m
2 stops
SOF7:20 pmSofia
$839

momondo Fare Finder

 
Use the filters below to find and compare flights from Sofia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 11/13

11:15 am-4:45 pm

2 stops37h 30m

Chicago O'Hare Intl

Thu 11/26

8:15 pm-8:50 pm

1 stop16h 35m

$820

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sat 11/7

10:10 pm-3:30 pm

2 stops25h 20m

Chicago O'Hare Intl

Mon 8/30

8:10 pm-8:45 am

1 stop28h 35m

$824

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sat 10/10

2:30 pm-3:10 pm

1 stop32h 40m

Chicago O'Hare Intl

Thu 12/10

9:50 pm-5:55 pm

1 stop12h 05m

$828

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 11/5

2:35 pm-7:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Sat 11/21

9:50 pm-5:55 pm

1 stop12h 05m

$833

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Wed 10/14

9:35 am-6:15 pm

1 stop16h 40m

Chicago O'Hare Intl

Mon 11/30

8:15 pm-8:50 pm

1 stop16h 35m

$845

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 10/22

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Thu 2/25

9:50 pm-10:55 pm

1 stop17h 05m

$849

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 10/6

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

Thu 11/5

4:20 pm-6:00 pm

1 stop17h 40m

$850
Quickest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 10/23

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Fri 11/27

6:00 pm-1:15 pm

1 stop11h 15m

$851

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 10/13

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

Fri 12/4

1:30 pm-5:30 pm

2 stops20h 00m

$857

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Wed 10/14

9:35 am-6:15 pm

1 stop16h 40m

Chicago O'Hare Intl

Wed 12/2

11:45 am-8:40 am

1 stop12h 55m

$963

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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See travel insights to Chicago from

How to get the cheapest flight ticket from Sofia to Chicago O'Hare Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Sofia and Chicago O'Hare Intl Airport?

Prices are currently typical for flights on this route.

Typical prices usually range from $784 to $911.
The lowest price recently found on this route was $820.

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

The month of December is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Sofia averaging around $736.

How far in advance should I book a flight from Sofia to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Sofia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $817 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Sofia for as low as $685 on momondo.

How have Sofia to Chicago O'Hare Intl Airport flight prices changed over time?

As of September 2026, prices for Sofia to Chicago O'Hare Intl Airport flights are approximately 42% more expensive when compared to flights at the same time last year.

When to book flights from Sofia to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Sofia to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Sofia to Chicago O'Hare Intl Airport (SOF to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Chicago O'Hare Intl Airport

Best Price Found

$409

Fastest flight time

13h 20m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from Sofia in the past 72 hours is $409. The best round-trip flight deal from Sofia to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $820.
The fastest flight from Sofia to Chicago O'Hare Intl Airport takes 13h 20m
There are no direct flights from Sofia to Chicago O'Hare Intl Airport. There are no popular flight routes from Sofia to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Sofia to Chicago O'Hare Intl Airport

  • How far is Sofia to Chicago O'Hare Intl by plane?

    The distance between Sofia and Chicago O'Hare Intl is about 5191.0 mi. 13h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Sofia Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Sofia Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Sofia Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Sofia Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sofia to Chicago O'Hare Intl Airport?

Best airlines flying from Sofia to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Sofia to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
LOTPriceFrom $609Free CancellationRating
7.6
1,202 reviews
Search LOT flights
KLMPriceFrom $652Free CancellationRating
7.8
1,576 reviews
Search KLM flights
Turkish AirlinesPriceFrom $655Free CancellationRating
7.4
4,460 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $714Free CancellationRating
6.8
8,234 reviews
Search Lufthansa flights
United AirlinesPriceFrom $735Free CancellationRating
7.4
10,233 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $806Free CancellationRating
7.6
967 reviews
Search Austrian Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
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Rosemont
Gurnee
Oak Brook
Orland Park
Joliet
Naperville
New Buffalo
Kenosha
Hammond
Aurora
Racine
Elgin
Janesville
Evanston
Skokie

Why use momondo?

Why should I use momondo to find a flight deal from Sofia to Chicago?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sofia to Chicago. momondo saves you time and could save you money on your trip.

Can I find flights from Sofia to Chicago with flexible booking policies on momondo?

Flights from Sofia to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Sofia to Chicago?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sofia to Chicago.

I’m not ready to book a flight from Sofia to Chicago right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Chicago from Sofia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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