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Cheap flights from Sofia to Chicago from $454

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 4/6. 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.
Multiple Airlines Logo
7:00 am - 2:20 pm
SOF
-
ORD
15h 20m
1 stop
Multiple Airlines Logo
5:10 pm - 2:00 pm
ORD
-
SOF
12h 50m
1 stop
$645Multiple Airlines
Sat, Feb 7 - Mon, Mar 30
Air France Logo
7:00 am - 3:10 pm
SOF
-
ORD
16h 10m
1 stop
Air France Logo
5:10 pm - 2:00 pm
ORD
-
SOF
12h 50m
1 stop
$646Air France
Mon, Feb 9 - Mon, May 4
KLM Logo
7:00 am - 2:20 pm
SOF
-
ORD
15h 20m
1 stop
KLM Logo
1:36 pm - 2:00 pm
ORD
-
SOF
16h 24m
2 stops
$649KLM
Sat, Feb 7 - Tue, Apr 14
Multiple Airlines Logo
7:00 am - 5:55 pm
SOF
-
ORD
18h 55m
2 stops
Multiple Airlines Logo
5:10 pm - 2:00 pm
ORD
-
SOF
12h 50m
1 stop
$650Multiple Airlines
Tue, Feb 10 - Tue, Apr 14
Multiple Airlines Logo
7:00 am - 3:10 pm
SOF
-
ORD
16h 10m
1 stop
Multiple Airlines Logo
4:20 pm - 2:00 pm
ORD
-
SOF
13h 40m
1 stop
$652Multiple Airlines
Sun, Feb 8 - Sun, Mar 29
LOT Logo
5:25 am - 7:50 pm
SOF
-
ORD
22h 25m
2 stops
LOT Logo
9:50 pm - 1:55 am
ORD
-
SOF
20h 05m
1 stop
$653LOT
Mon, May 25 - Wed, Oct 21
KLM Logo
7:00 am - 2:20 pm
SOF
-
ORD
15h 20m
1 stop
KLM Logo
2:10 pm - 2:00 pm
ORD
-
SOF
15h 50m
2 stops
$655KLM
Sat, Feb 7 - Mon, Mar 30
British Airways Logo
5:25 pm - 5:47 pm
SOF
-
ORD
32h 22m
2 stops
British Airways Logo
10:35 pm - 8:30 pm
ORD
-
SOF
13h 55m
1 stop
$656British Airways
Mon, Feb 9 - Tue, Apr 14
Multiple Airlines Logo
7:00 am - 3:10 pm
SOF
-
ORD
16h 10m
1 stop
Multiple Airlines Logo
4:20 pm - 2:00 pm
ORD
-
SOF
13h 40m
1 stop
$657Multiple Airlines
Mon, Feb 9 - Sun, Mar 29
British Airways Logo
9:00 pm - 7:45 pm
SOF
-
ORD
29h 45m
1 stop
British Airways Logo
7:05 pm - 8:10 pm
ORD
-
SOF
17h 05m
1 stop
$658British Airways
Wed, Mar 11 - Sat, May 9

British Airways flights from Sofia to Chicago

Our best British Airways deals on Sofia to Chicago flight tickets
British Airways
Feb 9
SOF5:25 pmSofia
32h 22m
2 stops
ORD5:47 pmChicago O'Hare Intl
Apr 14
ORD10:35 pmChicago O'Hare Intl
13h 55m
1 stop
SOF8:30 pmSofia
$656
British Airways
Mar 11
SOF9:00 pmSofia
29h 45m
1 stop
ORD7:45 pmChicago O'Hare Intl
May 9
ORD7:05 pmChicago O'Hare Intl
17h 05m
1 stop
SOF8:10 pmSofia
$658
British Airways
Feb 9
SOF5:25 pmSofia
32h 22m
2 stops
ORD5:47 pmChicago O'Hare Intl
May 5
ORD4:16 pmChicago O'Hare Intl
20h 14m
2 stops
SOF8:30 pmSofia
$663

LOT flights from Sofia to Chicago

Our best LOT deals on Sofia to Chicago flight tickets
LOT
May 25
SOF5:25 amSofia
22h 25m
2 stops
ORD7:50 pmChicago O'Hare Intl
Oct 21
ORD9:50 pmChicago O'Hare Intl
20h 05m
1 stop
SOF1:55 amSofia
$653
LOT
Feb 28
SOF2:35 pmSofia
13h 25m
1 stop
ORD8:00 pmChicago O'Hare Intl
Mar 14
ORD10:55 pmChicago O'Hare Intl
11h 55m
1 stop
SOF5:50 pmSofia
$660
LOT
Apr 23
SOF5:25 amSofia
22h 25m
1 stop
ORD7:50 pmChicago O'Hare Intl
Aug 29
ORD5:10 pmChicago O'Hare Intl
24h 45m
1 stop
SOF1:55 amSofia
$695

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 January 28, 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

Sat 2/7

7:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Mon 3/30

5:10 pm-2:00 pm

1 stop12h 50m

$645

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 2/9

7:00 am-3:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Mon 5/4

5:10 pm-2:00 pm

1 stop12h 50m

$646

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 2/7

7:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Tue 4/14

1:36 pm-2:00 pm

2 stops16h 24m

$649

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 2/10

7:00 am-5:55 pm

2 stops18h 55m

Chicago O'Hare Intl

Tue 4/14

5:10 pm-2:00 pm

1 stop12h 50m

$650

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 2/8

7:00 am-3:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Sun 3/29

4:20 pm-2:00 pm

1 stop13h 40m

$652

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 5/25

5:25 am-7:50 pm

2 stops22h 25m

Chicago O'Hare Intl

Wed 10/21

9:50 pm-1:55 am

1 stop20h 05m

$653

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 2/7

7:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Mon 3/30

2:10 pm-2:00 pm

2 stops15h 50m

$655

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 2/9

5:25 pm-5:47 pm

2 stops32h 22m

Chicago O'Hare Intl

Tue 4/14

10:35 pm-8:30 pm

1 stop13h 55m

$656

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 2/9

7:00 am-3:10 pm

1 stop16h 10m

Chicago O'Hare Intl

Sun 3/29

4:20 pm-2:00 pm

1 stop13h 40m

$657

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/11

9:00 pm-7:45 pm

1 stop29h 45m

Chicago O'Hare Intl

Sat 5/9

7:05 pm-8:10 pm

1 stop17h 05m

$658

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 February is, on average, the cheapest month to fly to Chicago from Sofia, with most prices found around $673. If you’re not able to fly to Chicago in February, then April is your next best option. Flight prices from Sofia to Chicago during April average around $679.

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 $731 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 $620 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of January 2026, prices for Sofia to Chicago flights are approximately 0% 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 15m

Direct flights

None
The fastest flight from Sofia to Chicago takes 15h 15m
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 15m 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 $576Free CancellationRating
7.5
1,176 reviews
Search LOT flights
KLMPriceFrom $621Free CancellationRating
7.7
1,443 reviews
Search KLM flights
Turkish AirlinesPriceFrom $625Free CancellationRating
7.3
4,209 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $645Free CancellationRating
6.8
7,749 reviews
Search Lufthansa flights
United AirlinesPriceFrom $649Free CancellationRating
7.4
9,208 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.5
895 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