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Cheap flights from Sofia to Chicago from $357

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 3/4. 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
0 bags

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Find the cheapest flights from Sofia to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
LOT Logo
2:35 pm - 8:00 pm
SOF
-
ORD
13h 25m
1 stop
LOT Logo
10:55 pm - 5:50 pm
ORD
-
SOF
11h 55m
1 stop
$655LOT
Thu, Feb 26 - Wed, Mar 11
Turkish Airlines Logo
4:00 pm - 11:05 am
SOF
-
ORD
26h 05m
1 stop
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
$658Turkish Airlines
Mon, Mar 16 - Mon, Mar 30
Turkish Airlines Logo
4:00 pm - 7:25 pm
SOF
-
ORD
34h 25m
1 stop
Turkish Airlines Logo
8:10 pm - 8:15 pm
ORD
-
SOF
16h 05m
1 stop
$662Turkish Airlines
Mon, Mar 16 - Mon, Mar 30
LOT Logo
2:35 pm - 8:00 pm
SOF
-
ORD
13h 25m
1 stop
LOT Logo
10:55 pm - 5:50 pm
ORD
-
SOF
11h 55m
1 stop
$663LOT
Thu, Feb 26 - Wed, Mar 11
Turkish Airlines Logo
9:35 am - 6:15 pm
SOF
-
ORD
16h 40m
1 stop
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
$664Turkish Airlines
Thu, Apr 23 - Sat, Aug 29
Turkish Airlines Logo
9:35 am - 6:15 pm
SOF
-
ORD
16h 40m
1 stop
Turkish Airlines Logo
8:10 pm - 8:45 am
ORD
-
SOF
28h 35m
1 stop
$666Turkish Airlines
Thu, Apr 23 - Sat, Aug 29
LOT Logo
2:35 pm - 8:00 pm
SOF
-
ORD
13h 25m
1 stop
LOT Logo
10:55 pm - 5:50 pm
ORD
-
SOF
11h 55m
1 stop
$667LOT
Thu, Feb 26 - Wed, Mar 11
LOT Logo
2:35 pm - 8:00 pm
SOF
-
ORD
13h 25m
1 stop
LOT Logo
10:55 pm - 5:50 pm
ORD
-
SOF
11h 55m
1 stop
$670LOT
Thu, Feb 26 - Wed, Mar 11
KLM Logo
7:00 am - 6:40 pm
SOF
-
MDW
19h 40m
2 stops
KLM Logo
1:22 pm - 2:00 pm
MDW
-
SOF
16h 38m
2 stops
$915KLM
Tue, Feb 24 - Wed, May 13
KLM Logo
7:00 am - 5:45 pm
SOF
-
MDW
18h 45m
2 stops
KLM Logo
2:05 pm - 2:05 pm
MDW
-
SOF
17h 00m
2 stops
$981KLM
Thu, Feb 26 - Wed, Mar 11

LOT flights from Sofia to Chicago

Our best LOT deals on Sofia to Chicago flight tickets
LOT
Feb 26
SOF2:35 pmSofia
13h 25m
1 stop
ORD8:00 pmChicago O'Hare Intl
Mar 11
ORD10:55 pmChicago O'Hare Intl
11h 55m
1 stop
SOF5:50 pmSofia
$655
LOT
Feb 26
SOF2:35 pmSofia
13h 25m
1 stop
ORD8:00 pmChicago O'Hare Intl
Mar 11
ORD10:55 pmChicago O'Hare Intl
11h 55m
1 stop
SOF5:50 pmSofia
$663
LOT
Feb 26
SOF2:35 pmSofia
13h 25m
1 stop
ORD8:00 pmChicago O'Hare Intl
Mar 11
ORD10:55 pmChicago O'Hare Intl
11h 55m
1 stop
SOF5:50 pmSofia
$667

Lufthansa flights from Sofia to Chicago

Our best Lufthansa deals on Sofia to Chicago flight tickets
Lufthansa
Mar 26
SOF6:00 amSofia
13h 10m
1 stop
ORD12:10 pmChicago O'Hare Intl
Apr 2
ORD9:40 pmChicago O'Hare Intl
13h 00m
1 stop
SOF6:40 pmSofia
$735
Lufthansa
Feb 28
SOF6:25 amSofia
16h 55m
1 stop
ORD3:20 pmChicago O'Hare Intl
Mar 16
ORD10:50 pmChicago O'Hare Intl
12h 30m
1 stop
SOF6:20 pmSofia
$741

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 February 12, 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

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/26

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 3/11

10:55 pm-5:50 pm

1 stop11h 55m

$655

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 3/16

4:00 pm-11:05 am

1 stop26h 05m

Chicago O'Hare Intl

Mon 3/30

11:25 am-3:00 pm

1 stop19h 35m

$658

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 3/16

4:00 pm-7:25 pm

1 stop34h 25m

Chicago O'Hare Intl

Mon 3/30

8:10 pm-8:15 pm

1 stop16h 05m

$662

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/26

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 3/11

10:55 pm-5:50 pm

1 stop11h 55m

$663

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/23

9:35 am-6:15 pm

1 stop16h 40m

Chicago O'Hare Intl

Sat 8/29

11:25 am-3:00 pm

1 stop19h 35m

$664

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/23

9:35 am-6:15 pm

1 stop16h 40m

Chicago O'Hare Intl

Sat 8/29

8:10 pm-8:45 am

1 stop28h 35m

$666

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/26

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 3/11

10:55 pm-5:50 pm

1 stop11h 55m

$667

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/26

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Wed 3/11

10:55 pm-5:50 pm

1 stop11h 55m

$670

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Tue 2/24

7:00 am-6:40 pm

2 stops19h 40m

Chicago Midway

Wed 5/13

1:22 pm-2:00 pm

2 stops16h 38m

$915

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Thu 2/26

7:00 am-5:45 pm

2 stops18h 45m

Chicago Midway

Wed 3/11

2:05 pm-2:05 pm

2 stops17h 00m

$981

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?

What is the cheapest month to fly to Chicago?

The month of April is, on average, the cheapest month to fly to Chicago from Sofia, with most prices found around $679. If you’re not able to fly to Chicago in April, then February is your next best option. Flight prices from Sofia to Chicago during February average around $690.

How far in advance should I book a flight 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 $742 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 $667 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of February 2026, prices for Sofia to Chicago flights are approximately 8% 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

Fastest flight time

15h 30m

Direct flights

None
The fastest flight from Sofia to Chicago takes 15h 30m
There are no direct flights from Sofia to Chicago. There are no popular flight routes from Sofia to Chicago.
Search flight deals

  • How far is Sofia to Chicago by plane?

    A flight from Sofia to Chicago will travel around 5185.9 mi. 15h 30m 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 $593Free CancellationRating
7.5
1,179 reviews
Search LOT flights
KLMPriceFrom $621Free CancellationRating
7.7
1,452 reviews
Search KLM flights
Turkish AirlinesPriceFrom $625Free CancellationRating
7.3
4,212 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $649Free CancellationRating
7.4
9,284 reviews
Search United Airlines flights
LufthansaPriceFrom $653Free CancellationRating
6.8
7,782 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.5
896 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
Benton Harbor
Saint Joseph
Portage
Lansing
Schererville
Valparaiso
Munster
Crown Point
Chesterton
Monticello
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