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Cheap flights from Sofia to Chicago from $393

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
12:45 pm - 7:15 pmSOF  Sofia-ORD Chicago O'Hare Intl
38h 30m2 stops Berlin Brandenburg Dublin
Multiple Airlines Logo
6:50 pm - 3:25 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 35m1 stop Zurich
$811Multiple Airlines
Wed, Jan 20 - Wed, Feb 10
Multiple Airlines Logo
10:55 am - 3:30 pmSOF  Sofia-ORD Chicago O'Hare Intl
36h 35m2 stops Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
9:40 pm - 11:05 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 25m1 stop Munich Franz Josef Strauss
$811Multiple Airlines
Thu, Nov 12 - Sun, May 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
$813LOT
Sun, Dec 13 - Tue, Dec 29
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 - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
$828Lufthansa
Fri, Nov 13 - Thu, Nov 26
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
Lufthansa Logo
4:20 pm - 1:25 pmORD  Chicago O'Hare Intl-SOF Sofia
13h 05m1 stop Frankfurt am Main
$830Lufthansa
Thu, Nov 5 - Wed, Nov 18
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
$831LOT
Sun, Dec 13 - Tue, Dec 29
United Airlines Logo
6:25 am - 3:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 55m1 stop Frankfurt am Main
United Airlines Logo
6:00 pm - 1:15 pmORD  Chicago O'Hare Intl-SOF Sofia
11h 15m1 stop Munich Franz Josef Strauss
$860United Airlines
Thu, Nov 5 - Wed, Nov 18
United Airlines Logo
6:25 am - 8:05 pmSOF  Sofia-ORD Chicago O'Hare Intl
21h 40m1 stop Frankfurt am Main
United Airlines Logo
6:00 pm - 6:40 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 40m1 stop Munich Franz Josef Strauss
$860United Airlines
Fri, Nov 20 - Fri, Sep 3
Austrian Airlines Logo
7:55 am - 2:00 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 05m1 stop Vienna Intl
Austrian Airlines Logo
4:20 pm - 3:20 pmORD  Chicago O'Hare Intl-SOF Sofia
15h 00m1 stop Vienna Intl
$875Austrian Airlines
Sat, Nov 21 - Sat, Apr 24
Austrian Airlines Logo
7:55 am - 2:00 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 05m1 stop Vienna Intl
Austrian Airlines Logo
4:20 pm - 11:40 amORD  Chicago O'Hare Intl-SOF Sofia
11h 20m1 stop Vienna Intl
$875Austrian Airlines
Sat, Nov 7 - Sat, Apr 17

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SWISS flights from Sofia to Chicago

Our best SWISS deals on Sofia to Chicago flight tickets
SWISS
Nov 2
SOF3:00 pmSofia
33h 15m
1 stop
ORD4:15 pmChicago O'Hare Intl
Nov 18
ORD6:50 pmChicago O'Hare Intl
12h 35m
1 stop
SOF3:25 pmSofia
$823
SWISS
Nov 2
SOF3:00 pmSofia
33h 15m
1 stop
ORD4:15 pmChicago O'Hare Intl
Nov 18
ORD6:50 pmChicago O'Hare Intl
12h 35m
1 stop
SOF3:25 pmSofia
$839
SWISS
Nov 5
SOF4:15 pmSofia
32h 00m
1 stop
ORD4:15 pmChicago O'Hare Intl
Apr 13
ORD3:50 pmChicago O'Hare Intl
34h 30m
1 stop
SOF10:20 amSofia
$860

United Airlines flights from Sofia to Chicago

Our best United Airlines deals on Sofia to Chicago flight tickets
United Airlines
Nov 6
SOF2:10 pmSofia
13h 55m
1 stop
ORD8:05 pmChicago O'Hare Intl
Dec 26
ORD6:05 pmChicago O'Hare Intl
20h 55m
1 stop
SOF11:00 pmSofia
$861
United Airlines
Nov 4
SOF2:10 pmSofia
13h 55m
1 stop
ORD8:05 pmChicago O'Hare Intl
Apr 11
ORD7:30 amChicago O'Hare Intl
27h 10m
2 stops
SOF6:40 pmSofia
$862
United Airlines
Nov 5
SOF6:25 amSofia
14h 45m
1 stop
ORD1:10 pmChicago O'Hare Intl
Nov 18
ORD1:30 pmChicago O'Hare Intl
15h 45m
2 stops
SOF1:15 pmSofia
$865

momondo Fare Finder

 
Use the filters below to find and compare flights from Sofia to Chicago 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

Wed 1/20

12:45 pm-7:15 pm

2 stops38h 30m

Chicago O'Hare Intl

Wed 2/10

6:50 pm-3:25 pm

1 stop12h 35m

$811

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 11/12

10:55 am-3:30 pm

2 stops36h 35m

Chicago O'Hare Intl

Sun 5/9

9:40 pm-11:05 pm

1 stop17h 25m

$811
Quickest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sun 12/13

2:35 pm-7:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Tue 12/29

9:50 pm-5:55 pm

1 stop12h 05m

$813

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 11/13

6:25 am-1:10 pm

1 stop14h 45m

Chicago O'Hare Intl

Thu 11/26

9:50 pm-10:55 pm

1 stop17h 05m

$828

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 11/5

6:25 am-1:10 pm

1 stop14h 45m

Chicago O'Hare Intl

Wed 11/18

4:20 pm-1:25 pm

1 stop13h 05m

$830

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sun 12/13

2:35 pm-7:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Tue 12/29

9:50 pm-5:55 pm

1 stop12h 05m

$831

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 11/5

6:25 am-3:20 pm

1 stop16h 55m

Chicago O'Hare Intl

Wed 11/18

6:00 pm-1:15 pm

1 stop11h 15m

$860

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 11/20

6:25 am-8:05 pm

1 stop21h 40m

Chicago O'Hare Intl

Fri 9/3

6:00 pm-6:40 pm

1 stop16h 40m

$860

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sat 11/21

7:55 am-2:00 pm

1 stop14h 05m

Chicago O'Hare Intl

Sat 4/24

4:20 pm-3:20 pm

1 stop15h 00m

$875

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sat 11/7

7:55 am-2:00 pm

1 stop14h 05m

Chicago O'Hare Intl

Sat 4/17

4:20 pm-11:40 am

1 stop11h 20m

$875

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Sofia to Chicago

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $784 to $951.
The lowest price recently found on this route was $811.

What is the cheapest month to fly to Chicago?

The month of February is, on average, the cheapest month to fly to Chicago from Sofia, with most prices found around $777. If you’re not able to fly to Chicago in February, then May is your next best option. Flight prices from Sofia to Chicago during May average around $778.

How far in advance should I book a flight from Sofia to Chicago?

You are more likely to see cheaper flights to Chicago from Sofia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $835 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Sofia for as low as $705 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of October 2026, prices for Sofia to Chicago flights are approximately 17% cheaper when compared to flights at the same time last year.

When to book flights from Sofia to Chicago

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

Cheap Sofia to Chicago (SOF to CHI) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Chicago

Best Price Found

$393

Fastest flight time

14h 45m

Direct flights

None
The best one-way flight to Chicago from Sofia in the past 72 hours is $393. The best round-trip flight deal from Sofia to Chicago found on momondo in the last 72 hours is $811.
The fastest flight from Sofia to Chicago takes 14h 45m
There are no direct flights from Sofia to Chicago. There are no popular flight routes from Sofia to Chicago.
Search flight deals

Frequently asked questions about flying from Sofia to Chicago

  • How far is Sofia to Chicago by plane?

    A flight from Sofia to Chicago will travel around 5185.9 mi. 14h 45m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Sofia Airport to Chicago?

    Prices for flights from Sofia Airport to Chicago are updated daily.

  • How many operators does momondo search for flights from Sofia Airport to Chicago?

  • How old do you have to be to fly from Sofia Airport to Chicago?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Chicago.

  • What documentation or ID do you need to fly to Chicago?

    The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sofia to Chicago?

Best airlines flying from Sofia to Chicago

Compare and see reviews for airlines that fly from Sofia to Chicago with momondo
Airline
Rating
Free Cancellation
Price
LOTPriceFrom $635Free CancellationRating
7.5
1,193 reviews
Search LOT flights
KLMPriceFrom $650Free CancellationRating
7.8
1,592 reviews
Search KLM flights
Turkish AirlinesPriceFrom $685Free CancellationRating
7.4
4,460 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $735Free CancellationRating
7.3
10,398 reviews
Search United Airlines flights
LufthansaPriceFrom $743Free CancellationRating
6.8
8,286 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $845Free CancellationRating
7.5
984 reviews
Search Austrian Airlines flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Merrillville
New Buffalo
Hammond
Portage
Saint Joseph
Benton Harbor
Lansing
Valparaiso
Schererville
Munster
Chesterton
Monticello
Crown Point
Porter
Griffith
Saint John

Why use momondo?

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

Finding the right flight to Chicago from Sofia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Chicago quick and easy, saving you time and money.

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

All flight searches from Sofia to Chicago on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Sofia to Chicago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Sofia and alert you when they change.

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Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport