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Cheap flights from Sofia to Chicago from $379

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sofia to Chicago departing on 9/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
Turkish Airlines Logo
3:50 pm - 11:00 am
SOF
-
ORD
27h 10m
1 stop
Turkish Airlines Logo
11:45 am - 8:55 pm
ORD
-
SOF
25h 10m
1 stop
$802Turkish Airlines
Sat, Oct 24 - Sun, Nov 15
LOT Logo
6:40 pm - 3:05 pm
SOF
-
ORD
52h 25m
2 stops
LOT Logo
9:50 pm - 1:50 pm
ORD
-
SOF
32h 00m
1 stop
$802LOT
Tue, Aug 18 - Sun, Oct 4
LOT Logo
6:40 pm - 3:05 pm
SOF
-
ORD
52h 25m
2 stops
LOT Logo
5:10 pm - 1:50 pm
ORD
-
SOF
12h 40m
1 stop
$802LOT
Tue, Aug 18 - Mon, Oct 5
Turkish Airlines Logo
11:55 am - 10:00 am
SOF
-
ORD
30h 05m
1 stop
Turkish Airlines Logo
8:15 pm - 3:10 pm
ORD
-
SOF
34h 55m
1 stop
$803Turkish Airlines
Fri, Nov 20 - Sun, Nov 29
Lufthansa Logo
6:30 am - 7:55 pm
SOF
-
ORD
21h 25m
1 stop
Lufthansa Logo
10:30 pm - 10:50 pm
ORD
-
SOF
16h 20m
1 stop
$805Lufthansa
Thu, Aug 27 - Tue, Sep 15
Multiple Airlines Logo
6:10 am - 7:15 pm
SOF
-
ORD
21h 05m
2 stops
Multiple Airlines Logo
3:45 pm - 1:25 am
ORD
-
SOF
25h 40m
2 stops
$809Multiple Airlines
Wed, Oct 7 - Tue, Oct 13
Lufthansa Logo
6:20 am - 11:00 am
SOF
-
ORD
12h 40m
1 stop
Lufthansa Logo
6:00 pm - 1:15 pm
ORD
-
SOF
11h 15m
1 stop
$812Lufthansa
Wed, Oct 21 - Sat, Nov 21
Multiple Airlines Logo
5:15 pm - 4:00 pm
SOF
-
ORD
30h 45m
2 stops
Multiple Airlines Logo
6:00 pm - 3:00 am
ORD
-
SOF
25h 00m
3 stops
$812Multiple Airlines
Thu, Sep 10 - Wed, Sep 23
United Airlines Logo
6:20 am - 11:00 am
SOF
-
ORD
12h 40m
1 stop
United Airlines Logo
1:15 pm - 1:15 pm
ORD
-
SOF
16h 00m
2 stops
$837United Airlines
Fri, Oct 16 - Sat, Nov 7
United Airlines Logo
6:30 am - 12:55 pm
SOF
-
ORD
14h 25m
1 stop
United Airlines Logo
10:30 pm - 10:50 pm
ORD
-
SOF
16h 20m
1 stop
$838United Airlines
Thu, Sep 10 - Wed, Sep 23

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United Airlines flights from Sofia to Chicago

Our best United Airlines deals on Sofia to Chicago flight tickets
United Airlines
Oct 16
SOF6:20 amSofia
12h 40m
1 stop
ORD11:00 amChicago O'Hare Intl
Nov 7
ORD1:15 pmChicago O'Hare Intl
16h 00m
2 stops
SOF1:15 pmSofia
$837
United Airlines
Sep 10
SOF6:30 amSofia
14h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
Sep 23
ORD10:30 pmChicago O'Hare Intl
16h 20m
1 stop
SOF10:50 pmSofia
$839
United Airlines
Sep 10
SOF6:30 amSofia
14h 25m
1 stop
ORD12:55 pmChicago O'Hare Intl
Sep 23
ORD10:30 pmChicago O'Hare Intl
16h 20m
1 stop
SOF10:50 pmSofia
$841

Lufthansa flights from Sofia to Chicago

Our best Lufthansa deals on Sofia to Chicago flight tickets
Lufthansa
Aug 27
SOF6:30 amSofia
21h 25m
1 stop
ORD7:55 pmChicago O'Hare Intl
Sep 15
ORD10:30 pmChicago O'Hare Intl
16h 20m
1 stop
SOF10:50 pmSofia
$805
Lufthansa
Oct 16
SOF6:20 amSofia
14h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
Nov 7
ORD9:50 pmChicago O'Hare Intl
16h 55m
1 stop
SOF10:45 pmSofia
$820
Lufthansa
Jul 31
SOF7:25 pmSofia
24h 35m
2 stops
ORD12:00 pmChicago O'Hare Intl
Aug 27
ORD6:00 pmChicago O'Hare Intl
16h 40m
1 stop
SOF6:40 pmSofia
$978

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 29, 2026.
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 - ORD

SOFORD

Sofia

Sat 10/24

3:50 pm-11:00 am

1 stop27h 10m

Chicago O'Hare Intl

Sun 11/15

11:45 am-8:55 pm

1 stop25h 10m

$802

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 8/18

6:40 pm-3:05 pm

2 stops52h 25m

Chicago O'Hare Intl

Sun 10/4

9:50 pm-1:50 pm

1 stop32h 00m

$802

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 8/18

6:40 pm-3:05 pm

2 stops52h 25m

Chicago O'Hare Intl

Mon 10/5

5:10 pm-1:50 pm

1 stop12h 40m

$802

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 11/20

11:55 am-10:00 am

1 stop30h 05m

Chicago O'Hare Intl

Sun 11/29

8:15 pm-3:10 pm

1 stop34h 55m

$803

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 8/27

6:30 am-7:55 pm

1 stop21h 25m

Chicago O'Hare Intl

Tue 9/15

10:30 pm-10:50 pm

1 stop16h 20m

$805

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 10/7

6:10 am-7:15 pm

2 stops21h 05m

Chicago O'Hare Intl

Tue 10/13

3:45 pm-1:25 am

2 stops25h 40m

$809
Quickest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 10/21

6:20 am-11:00 am

1 stop12h 40m

Chicago O'Hare Intl

Sat 11/21

6:00 pm-1:15 pm

1 stop11h 15m

$812

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 9/10

5:15 pm-4:00 pm

2 stops30h 45m

Chicago O'Hare Intl

Wed 9/23

6:00 pm-3:00 am

3 stops25h 00m

$812

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 10/16

6:20 am-11:00 am

1 stop12h 40m

Chicago O'Hare Intl

Sat 11/7

1:15 pm-1:15 pm

2 stops16h 00m

$837

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 9/10

6:30 am-12:55 pm

1 stop14h 25m

Chicago O'Hare Intl

Wed 9/23

10:30 pm-10:50 pm

1 stop16h 20m

$838

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 low for flights on this route.

Typical prices usually range from $810 to $1,068.
The lowest price recently found on this route was $802.

What is the cheapest month to fly to Chicago?

The month of December is, on average, the cheapest month to fly to Chicago from Sofia, with most prices found around $750. If you’re not able to fly to Chicago in December, then November is your next best option. Flight prices from Sofia to Chicago during November average around $752.

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 $799 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 $717 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of July 2026, prices for Sofia to Chicago flights are approximately 25% more expensive 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

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from Sofia to Chicago takes 13h 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. 13h 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
Turkish AirlinesPriceFrom $594Free CancellationRating
7.4
4,456 reviews
Search Turkish Airlines flights
LOTPriceFrom $629Free CancellationRating
7.6
1,212 reviews
Search LOT flights
KLMPriceFrom $652Free CancellationRating
7.8
1,551 reviews
Search KLM flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.6
950 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $704Free CancellationRating
7.4
10,048 reviews
Search United Airlines flights
LufthansaPriceFrom $711Free CancellationRating
6.8
8,163 reviews
Search Lufthansa 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
Benton Harbor
Lansing
Saint Joseph
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

Airports listed have a maximum distance of 78.5 mi from Chicago
Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport