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Cheap flights from Sofia to Chicago from $324

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 4/25. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
LOT Logo
6:45 pm - 7:50 pm
SOF
-
ORD
33h 05m
1 stop
LOT Logo
9:50 pm - 1:55 am
ORD
-
SOF
20h 05m
1 stop
$666LOT
Mon, Apr 20 - Tue, Sep 8
LOT Logo
5:30 am - 3:10 pm
SOF
-
ORD
17h 40m
1 stop
LOT Logo
9:50 pm - 6:00 pm
ORD
-
SOF
12h 10m
1 stop
$667LOT
Thu, Jun 25 - Mon, Jul 20
LOT Logo
5:25 am - 7:50 pm
SOF
-
ORD
22h 25m
1 stop
LOT Logo
5:10 pm - 6:00 pm
ORD
-
SOF
16h 50m
2 stops
$672LOT
Thu, Apr 23 - Fri, Aug 28
LOT Logo
5:25 am - 3:10 pm
SOF
-
ORD
17h 45m
1 stop
LOT Logo
9:50 pm - 6:00 pm
ORD
-
SOF
12h 10m
1 stop
$674LOT
Mon, May 4 - Thu, Jul 30
LOT Logo
5:25 am - 3:10 pm
SOF
-
ORD
17h 45m
1 stop
LOT Logo
9:50 pm - 1:50 pm
ORD
-
SOF
32h 00m
1 stop
$677LOT
Sat, Apr 11 - Sat, Apr 25
LOT Logo
2:35 pm - 3:10 pm
SOF
-
ORD
32h 35m
2 stops
LOT Logo
9:50 pm - 6:00 pm
ORD
-
SOF
12h 10m
1 stop
$678LOT
Thu, Jun 4 - Thu, Jul 16
LOT Logo
6:45 pm - 7:50 pm
SOF
-
ORD
33h 05m
2 stops
LOT Logo
9:50 pm - 1:50 pm
ORD
-
SOF
32h 00m
1 stop
$679LOT
Thu, Apr 2 - Fri, Jul 31
LOT Logo
5:25 am - 3:10 pm
SOF
-
ORD
17h 45m
1 stop
LOT Logo
9:50 pm - 1:55 am
ORD
-
SOF
20h 05m
1 stop
$680LOT
Thu, May 28 - Thu, Jul 30
LOT Logo
2:35 pm - 7:50 pm
SOF
-
ORD
13h 15m
1 stop
LOT Logo
8:10 pm - 1:50 pm
ORD
-
SOF
33h 40m
1 stop
$683LOT
Thu, Apr 2 - Fri, Jul 31
LOT Logo
2:35 pm - 7:50 pm
SOF
-
ORD
13h 15m
1 stop
LOT Logo
9:50 pm - 1:50 pm
ORD
-
SOF
32h 00m
1 stop
$684LOT
Thu, Apr 2 - Fri, Jul 31

Air Canada flights from Sofia to Chicago O'Hare Intl Airport

Our best Air Canada deals on Sofia to Chicago O'Hare Intl Airport flight tickets
Air Canada
May 4
SOF6:20 amSofia
21h 48m
2 stops
ORD8:08 pmChicago O'Hare Intl
Jul 29
ORD8:45 amChicago O'Hare Intl
17h 55m
2 stops
SOF10:40 amSofia
$727
Air Canada
Mar 11
SOF6:10 amSofia
21h 00m
2 stops
ORD8:10 pmChicago O'Hare Intl
Apr 30
ORD9:50 amChicago O'Hare Intl
17h 20m
2 stops
SOF11:10 amSofia
$731
Air Canada
Mar 11
SOF6:10 amSofia
21h 00m
2 stops
ORD8:10 pmChicago O'Hare Intl
Jun 3
ORD8:45 amChicago O'Hare Intl
20h 40m
2 stops
SOF1:25 pmSofia
$756

LOT flights from Sofia to Chicago O'Hare Intl Airport

Our best LOT deals on Sofia to Chicago O'Hare Intl Airport flight tickets
LOT
Apr 20
SOF6:45 pmSofia
33h 05m
1 stop
ORD7:50 pmChicago O'Hare Intl
Sep 8
ORD9:50 pmChicago O'Hare Intl
20h 05m
1 stop
SOF1:55 amSofia
$666
LOT
Jun 25
SOF5:30 amSofia
17h 40m
1 stop
ORD3:10 pmChicago O'Hare Intl
Jul 20
ORD9:50 pmChicago O'Hare Intl
12h 10m
1 stop
SOF6:00 pmSofia
$667
LOT
Apr 23
SOF5:25 amSofia
22h 25m
1 stop
ORD7:50 pmChicago O'Hare Intl
Aug 28
ORD5:10 pmChicago O'Hare Intl
16h 50m
2 stops
SOF6:00 pmSofia
$672

momondo Fare Finder

 
Customize your flight search to find flights from Sofia to Chicago O'Hare Intl Airport 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 2, 2026.
Use the filters below to find and compare flights from Sofia to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 4/20

6:45 pm-7:50 pm

1 stop33h 05m

Chicago O'Hare Intl

Tue 9/8

9:50 pm-1:55 am

1 stop20h 05m

$666

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/25

5:30 am-3:10 pm

1 stop17h 40m

Chicago O'Hare Intl

Mon 7/20

9:50 pm-6:00 pm

1 stop12h 10m

$667

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/23

5:25 am-7:50 pm

1 stop22h 25m

Chicago O'Hare Intl

Fri 8/28

5:10 pm-6:00 pm

2 stops16h 50m

$672

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 5/4

5:25 am-3:10 pm

1 stop17h 45m

Chicago O'Hare Intl

Thu 7/30

9:50 pm-6:00 pm

1 stop12h 10m

$674

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 4/11

5:25 am-3:10 pm

1 stop17h 45m

Chicago O'Hare Intl

Sat 4/25

9:50 pm-1:50 pm

1 stop32h 00m

$677

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/4

2:35 pm-3:10 pm

2 stops32h 35m

Chicago O'Hare Intl

Thu 7/16

9:50 pm-6:00 pm

1 stop12h 10m

$678

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/2

6:45 pm-7:50 pm

2 stops33h 05m

Chicago O'Hare Intl

Fri 7/31

9:50 pm-1:50 pm

1 stop32h 00m

$679

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 5/28

5:25 am-3:10 pm

1 stop17h 45m

Chicago O'Hare Intl

Thu 7/30

9:50 pm-1:55 am

1 stop20h 05m

$680

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/2

2:35 pm-7:50 pm

1 stop13h 15m

Chicago O'Hare Intl

Fri 7/31

8:10 pm-1:50 pm

1 stop33h 40m

$683

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 4/2

2:35 pm-7:50 pm

1 stop13h 15m

Chicago O'Hare Intl

Fri 7/31

9:50 pm-1:50 pm

1 stop32h 00m

$684

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Sofia to Chicago O'Hare Intl Airport

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of November is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Sofia averaging around $693.

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Sofia when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $743 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Sofia for as low as $667 on momondo.

How have Sofia to Chicago O'Hare Intl Airport flight prices changed over time?

As of March 2026, prices for Sofia to Chicago O'Hare Intl Airport flights are approximately 36% more expensive when compared to flights at the same time last year.

When to book flights from Sofia to Chicago O'Hare Intl Airport

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

Cheap Sofia to Chicago O'Hare Intl Airport (SOF to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sofia to Chicago O'Hare Intl Airport

Fastest flight time

13h 20m

Direct flights

None
The fastest flight from Sofia to Chicago O'Hare Intl Airport takes 13h 20m
There are no direct flights from Sofia to Chicago O'Hare Intl Airport. There are no popular flight routes from Sofia to Chicago O'Hare Intl Airport.
Search flight deals

  • How far is Sofia to Chicago O'Hare Intl by plane?

    The distance between Sofia and Chicago O'Hare Intl is about 5191.0 mi. 13h 20m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Sofia Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Sofia Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Sofia Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Sofia Airport to Chicago O'Hare Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sofia Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Sofia to Chicago O'Hare Intl Airport?

Best airlines flying from Sofia to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Sofia to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
LOTPriceFrom $614Free CancellationRating
7.5
1,182 reviews
Search LOT flights
KLMPriceFrom $621Free CancellationRating
7.7
1,461 reviews
Search KLM flights
Turkish AirlinesPriceFrom $625Free CancellationRating
7.3
4,240 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $651Free CancellationRating
7.4
9,378 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.6
900 reviews
Search Austrian Airlines flights
LufthansaPriceFrom $669Free CancellationRating
6.8
7,820 reviews
Search Lufthansa flights

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Naperville
Rosemont
New Buffalo
Orland Park
Kenosha
Oak Brook
Joliet
Racine
Janesville
Hammond
Aurora
Tinley Park
Elgin
South Holland

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Sofia to Chicago. momondo saves you time and could save you money on your trip.

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

Flights from Sofia to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Sofia to Chicago.

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

Yes momondo offers price alerts on flights to Chicago from Sofia. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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