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Cheap flights from Sofia to Chicago from $378

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 5/20. 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

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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.
Turkish Airlines Logo
3:50 pm - 9:40 am
SOF
-
ORD
25h 50m
1 stop
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
$682Turkish Airlines
Thu, Apr 16 - Fri, May 1
Turkish Airlines Logo
3:50 pm - 9:40 am
SOF
-
ORD
25h 50m
1 stop
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
$683Turkish Airlines
Sat, Jun 6 - Fri, Jul 10
Turkish Airlines Logo
2:05 pm - 6:15 pm
SOF
-
ORD
36h 10m
1 stop
Turkish Airlines Logo
11:25 am - 1:15 pm
ORD
-
SOF
17h 50m
1 stop
$685Turkish Airlines
Sun, Apr 12 - Sat, Apr 25
Turkish Airlines Logo
2:05 pm - 9:40 am
SOF
-
ORD
27h 35m
1 stop
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
$687Turkish Airlines
Fri, Apr 24 - Fri, May 1
LOT Logo
6:45 pm - 3:10 pm
SOF
-
ORD
28h 25m
1 stop
LOT Logo
5:10 pm - 6:00 pm
ORD
-
SOF
16h 50m
1 stop
$695LOT
Wed, Sep 9 - Wed, Sep 30
Turkish Airlines Logo
9:35 am - 9:40 am
SOF
-
ORD
32h 05m
1 stop
Turkish Airlines Logo
8:10 pm - 3:00 pm
ORD
-
SOF
34h 50m
1 stop
$697Turkish Airlines
Sat, Jun 6 - Fri, Jul 10
LOT Logo
6:45 pm - 3:10 pm
SOF
-
ORD
28h 25m
1 stop
LOT Logo
9:50 pm - 1:55 am
ORD
-
SOF
20h 05m
1 stop
$698LOT
Mon, Jun 1 - Thu, Oct 22
KLM Logo
7:00 am - 5:54 pm
SOF
-
MDW
18h 54m
2 stops
KLM Logo
1:24 pm - 2:00 pm
MDW
-
SOF
16h 36m
2 stops
$752KLM
Sun, Apr 12 - Sat, Apr 25
KLM Logo
7:00 am - 5:54 pm
SOF
-
MDW
18h 54m
2 stops
KLM Logo
1:24 pm - 2:00 pm
MDW
-
SOF
16h 36m
2 stops
$757KLM
Sun, Apr 12 - Sat, Apr 25
Multiple Airlines Logo
7:00 am - 6:33 pm
SOF
-
MDW
19h 33m
2 stops
Multiple Airlines Logo
1:16 pm - 2:00 pm
MDW
-
SOF
16h 44m
2 stops
$1,060Multiple Airlines
Sat, Jun 6 - Sat, Jun 27

Turkish Airlines flights from Sofia to Chicago

Our best Turkish Airlines deals on Sofia to Chicago flight tickets
Turkish Airlines
Apr 16
SOF3:50 pmSofia
25h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
May 1
ORD11:25 amChicago O'Hare Intl
19h 35m
1 stop
SOF3:00 pmSofia
$682
Turkish Airlines
Jun 6
SOF3:50 pmSofia
25h 50m
1 stop
ORD9:40 amChicago O'Hare Intl
Jul 10
ORD11:25 amChicago O'Hare Intl
19h 35m
1 stop
SOF3:00 pmSofia
$683
Turkish Airlines
Apr 12
SOF2:05 pmSofia
36h 10m
1 stop
ORD6:15 pmChicago O'Hare Intl
Apr 25
ORD11:25 amChicago O'Hare Intl
17h 50m
1 stop
SOF1:15 pmSofia
$685

United Airlines flights from Sofia to Chicago

Our best United Airlines deals on Sofia to Chicago flight tickets
United Airlines
Apr 3
SOF6:20 amSofia
16h 30m
1 stop
ORD2:50 pmChicago O'Hare Intl
Sep 1
ORD9:40 pmChicago O'Hare Intl
17h 20m
1 stop
SOF11:00 pmSofia
$818
United Airlines
Apr 8
SOF6:20 amSofia
14h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
May 11
ORD12:55 pmChicago O'Hare Intl
15h 15m
2 stops
SOF12:10 pmSofia
$822
United Airlines
Apr 3
SOF6:20 amSofia
14h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
Sep 1
ORD6:18 pmChicago O'Hare Intl
15h 42m
2 stops
SOF6:00 pmSofia
$823

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 March 27, 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

Thu 4/16

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Fri 5/1

11:25 am-3:00 pm

1 stop19h 35m

$682

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 6/6

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Fri 7/10

11:25 am-3:00 pm

1 stop19h 35m

$683

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 4/12

2:05 pm-6:15 pm

1 stop36h 10m

Chicago O'Hare Intl

Sat 4/25

11:25 am-1:15 pm

1 stop17h 50m

$685

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 4/24

2:05 pm-9:40 am

1 stop27h 35m

Chicago O'Hare Intl

Fri 5/1

11:25 am-3:00 pm

1 stop19h 35m

$687

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/9

6:45 pm-3:10 pm

1 stop28h 25m

Chicago O'Hare Intl

Wed 9/30

5:10 pm-6:00 pm

1 stop16h 50m

$695

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 6/6

9:35 am-9:40 am

1 stop32h 05m

Chicago O'Hare Intl

Fri 7/10

8:10 pm-3:00 pm

1 stop34h 50m

$697

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 6/1

6:45 pm-3:10 pm

1 stop28h 25m

Chicago O'Hare Intl

Thu 10/22

9:50 pm-1:55 am

1 stop20h 05m

$698
Quickest round-trip

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sun 4/12

7:00 am-5:54 pm

2 stops18h 54m

Chicago Midway

Sat 4/25

1:24 pm-2:00 pm

2 stops16h 36m

$752

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sun 4/12

7:00 am-5:54 pm

2 stops18h 54m

Chicago Midway

Sat 4/25

1:24 pm-2:00 pm

2 stops16h 36m

$757

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sat 6/6

7:00 am-6:33 pm

2 stops19h 33m

Chicago Midway

Sat 6/27

1:16 pm-2:00 pm

2 stops16h 44m

$1,060

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 $708. If you’re not able to fly to Chicago in April, then September is your next best option. Flight prices from Sofia to Chicago during September average around $708.

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 $752 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 $701 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of March 2026, prices for Sofia to Chicago flights are approximately 52% 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 20m

Direct flights

None
The fastest flight from Sofia to Chicago takes 13h 20m
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. 13h 20m 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 $619Free CancellationRating
7.5
1,181 reviews
Search LOT flights
Turkish AirlinesPriceFrom $625Free CancellationRating
7.4
4,282 reviews
Search Turkish Airlines flights
KLMPriceFrom $631Free CancellationRating
7.8
1,478 reviews
Search KLM flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.6
903 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $680Free CancellationRating
7.4
9,491 reviews
Search United Airlines flights
LufthansaPriceFrom $707Free CancellationRating
6.8
7,871 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
Saint Joseph
Benton Harbor
Portage
Lansing
Valparaiso
Schererville
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