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Cheap flights from Sofia to Chicago from $342

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 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Sofia to Chicago

Cheap round-trip flights

Lufthansa Logo
6:15 am - 12:55 pmSOF-ORD
14h 40m1 stop
Lufthansa Logo
9:50 pm - 6:20 pmORD-SOF
12h 30m1 stop
$573Lufthansa
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Wed, Sep 10 - Sat, Dec 13
Turkish Airlines Logo
3:35 pm - 9:40 amSOF-ORD
26h 05m1 stop
Turkish Airlines Logo
9:20 pm - 9:15 amORD-SOF
28h 55m1 stop
$605Turkish Airlines
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Wed, Oct 1 - Sat, Nov 1
Turkish Airlines Logo
3:35 pm - 9:40 amSOF-ORD
26h 05m1 stop
Turkish Airlines Logo
8:20 pm - 3:10 pmORD-SOF
34h 50m1 stop
$609Turkish Airlines
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Tue, Oct 14 - Sat, Nov 29
Logo
6:15 am - 8:11 pmSOF-ORD
21h 56m2 stops
Logo
10:40 am - 10:05 amORD-SOF
15h 25m2 stops
$628
Find Deal
Wed, Sep 17 - Wed, Sep 24
United Airlines Logo
6:15 am - 7:55 pmSOF-ORD
21h 40m1 stop
United Airlines Logo
9:50 pm - 6:20 pmORD-SOF
12h 30m1 stop
$631United Airlines
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Wed, Oct 22 - Sun, Nov 2
United Airlines Logo
6:00 am - 8:05 pmSOF-ORD
22h 05m1 stop
United Airlines Logo
7:00 pm - 10:45 pmORD-SOF
20h 45m1 stop
$632United Airlines
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Thu, Dec 11 - Tue, Mar 10
LOT Logo
5:20 am - 7:40 pmSOF-ORD
22h 20m1 stop
LOT Logo
5:10 pm - 2:00 amORD-SOF
24h 50m2 stops
$644LOT
Find Deal
Mon, Sep 15 - Tue, Sep 30
LOT Logo
6:35 pm - 8:00 pmSOF-ORD
33h 25m1 stop
LOT Logo
10:55 pm - 1:50 pmORD-SOF
31h 55m1 stop
$653LOT
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Tue, Dec 9 - Wed, Mar 11
Austrian Airlines Logo
8:00 am - 6:25 pmSOF-ORD
18h 25m2 stops
Austrian Airlines Logo
4:20 pm - 11:40 amORD-SOF
11h 20m1 stop
$663Austrian Airlines
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Mon, Sep 15 - Sun, Sep 21
Logo
6:15 am - 2:55 pmSOF-ORD
16h 40m2 stops
Logo
10:30 pm - 11:00 pmORD-SOF
16h 30m2 stops
$665
Find Deal
Thu, Sep 18 - Thu, Oct 2

Turkish Airlines flights from Sofia to Chicago O'Hare Intl Airport

Our best Turkish Airlines deals on Sofia to Chicago O'Hare Intl Airport flight tickets
Turkish Airlines
Oct 1
SOF3:35 pmSofia
26h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
Nov 1
ORD9:20 pmChicago O'Hare Intl
28h 55m
1 stop
SOF9:15 amSofia
$605
Find similar
Turkish Airlines
Oct 14
SOF3:35 pmSofia
26h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
Nov 29
ORD8:20 pmChicago O'Hare Intl
34h 50m
1 stop
SOF3:10 pmSofia
$609
Find similar
Turkish Airlines
Sep 18
SOF3:35 pmSofia
34h 20m
1 stop
ORD5:55 pmChicago O'Hare Intl
Oct 3
ORD11:25 amChicago O'Hare Intl
13h 10m
1 stop
SOF8:35 amSofia
$612
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Austrian Airlines flights from Sofia to Chicago O'Hare Intl Airport

Our best Austrian Airlines deals on Sofia to Chicago O'Hare Intl Airport flight tickets
Austrian Airlines
Sep 15
SOF8:00 amSofia
18h 25m
2 stops
ORD6:25 pmChicago O'Hare Intl
Sep 21
ORD4:20 pmChicago O'Hare Intl
11h 20m
1 stop
SOF11:40 amSofia
$663
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Austrian Airlines
Aug 12
SOF12:25 pmSofia
32h 25m
2 stops
ORD12:50 pmChicago O'Hare Intl
Jun 9
ORD4:30 pmChicago O'Hare Intl
41h 40m
2 stops
SOF6:10 pmSofia
$826
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Austrian Airlines
Aug 11
SOF12:25 pmSofia
32h 25m
2 stops
ORD12:50 pmChicago O'Hare Intl
Jun 9
ORD1:12 pmChicago O'Hare Intl
26h 43m
2 stops
SOF11:55 pmSofia
$834
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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 August 5, 2025.
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

Wed 9/10

6:15 am-12:55 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 12/13

9:50 pm-6:20 pm

1 stop12h 30m

$573

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 10/1

3:35 pm-9:40 am

1 stop26h 05m

Chicago O'Hare Intl

Sat 11/1

9:20 pm-9:15 am

1 stop28h 55m

$605

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 10/14

3:35 pm-9:40 am

1 stop26h 05m

Chicago O'Hare Intl

Sat 11/29

8:20 pm-3:10 pm

1 stop34h 50m

$609

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/17

6:15 am-8:11 pm

2 stops21h 56m

Chicago O'Hare Intl

Wed 9/24

10:40 am-10:05 am

2 stops15h 25m

$628

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 10/22

6:15 am-7:55 pm

1 stop21h 40m

Chicago O'Hare Intl

Sun 11/2

9:50 pm-6:20 pm

1 stop12h 30m

$631

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 12/11

6:00 am-8:05 pm

1 stop22h 05m

Chicago O'Hare Intl

Tue 3/10

7:00 pm-10:45 pm

1 stop20h 45m

$632

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/15

5:20 am-7:40 pm

1 stop22h 20m

Chicago O'Hare Intl

Tue 9/30

5:10 pm-2:00 am

2 stops24h 50m

$644

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 12/9

6:35 pm-8:00 pm

1 stop33h 25m

Chicago O'Hare Intl

Wed 3/11

10:55 pm-1:50 pm

1 stop31h 55m

$653

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/15

8:00 am-6:25 pm

2 stops18h 25m

Chicago O'Hare Intl

Sun 9/21

4:20 pm-11:40 am

1 stop11h 20m

$663

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 9/18

6:15 am-2:55 pm

2 stops16h 40m

Chicago O'Hare Intl

Thu 10/2

10:30 pm-11:00 pm

2 stops16h 30m

$665

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 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 typical price of a round-trip flight between Sofia and Chicago O'Hare Intl Airport?

What is the cheapest month to fly to Chicago O'Hare Intl Airport?

The month of February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Sofia averaging around $669.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Wednesday when prices can be found for as low as $685. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday is the most expensive day to depart from Sofia because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $778.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Sofia at noon is the least expensive time of day to depart. momondo users have found prices as low as $657 when looking at flights departing at noon. Try not to purchase tickets in the morning because they tend to be around $779. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $715 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 $625 on momondo.

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

As of August 2025, prices for Sofia to Chicago O'Hare Intl Airport flights are approximately 7% cheaper 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

Best Price Found

$342

Fastest flight time

12h 45m

Direct flights

None
The best one-way flight to Chicago O'Hare Intl Airport from Sofia in the past 72 hours is $342. The best round-trip flight deal from Sofia to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $573.
The fastest flight from Sofia to Chicago O'Hare Intl Airport takes 12h 45m
There are no direct flights from Sofia to Chicago O'Hare Intl Airport. Popular non-direct route for this connection is Sofia Airport - 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. 12h 45m 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
KLMPriceFrom $460Free CancellationRating
7.8
1,381 reviews
Search KLM flights
LOTPriceFrom $532Free CancellationRating
7.6
1,102 reviews
Search LOT flights
Air FrancePriceFrom $560Free CancellationRating
7.5
1,466 reviews
Search Air France flights
Austrian AirlinesPriceFrom $576Free CancellationRating
7.6
823 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $603Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
LufthansaPriceFrom $615Free CancellationRating
6.8
7,287 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $627Free CancellationRating
7.3
3,934 reviews
Search Turkish Airlines flights

Traveling to a place near Chicago?

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Lake Geneva
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Joliet
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Racine
Hammond
Tinley Park
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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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