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Cheap flights from Sofia to Chicago from $385

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 10/15. 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

Discover deals from 900+ travel sites with momondo.

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 - 3:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
32h 35m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice
LOT Logo
9:50 pm - 6:00 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 10m1 stop Warsaw Frederic Chopin
$797LOT
Thu, Sep 24 - Wed, Oct 7
LOT Logo
2:35 pm - 3:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
56h 35m2 stops Warsaw Frederic Chopin Krakow J. Paul II Balice
LOT Logo
5:10 pm - 6:00 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 50m1 stop Warsaw Frederic Chopin
$799LOT
Mon, Sep 28 - Mon, Oct 12
Turkish Airlines Logo
3:50 pm - 9:40 amSOF  Sofia-ORD Chicago O'Hare Intl
25h 50m1 stop Istanbul
Turkish Airlines Logo
8:15 pm - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 40m1 stop Istanbul
$809Turkish Airlines
Mon, Oct 5 - Fri, Feb 26
Turkish Airlines Logo
3:50 pm - 9:40 amSOF  Sofia-ORD Chicago O'Hare Intl
25h 50m1 stop Istanbul
Turkish Airlines Logo
8:15 pm - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 40m1 stop Istanbul
$810Turkish Airlines
Mon, Oct 5 - Fri, Feb 26
Multiple Airlines Logo
4:45 pm - 5:50 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 05m2 stops Kastrup Copenhagen Helsinki-Vantaa
Multiple Airlines Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
$812Multiple Airlines
Tue, Oct 13 - Wed, Nov 4
Multiple Airlines Logo
3:00 pm - 5:50 pmSOF  Sofia-ORD Chicago O'Hare Intl
34h 50m2 stops Riga Intl Helsinki-Vantaa
Multiple Airlines Logo
4:55 pm - 1:25 amORD  Chicago O'Hare Intl-SOF Sofia
24h 30m1 stop Madrid Barajas
$833Multiple Airlines
Tue, Oct 13 - Tue, Oct 20
Lufthansa Logo
2:10 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 45m1 stop Frankfurt am Main
Lufthansa Logo
6:00 pm - 1:15 pmORD  Chicago O'Hare Intl-SOF Sofia
11h 15m1 stop Munich Franz Josef Strauss
$846Lufthansa
Fri, Oct 23 - Sun, Nov 1
Lufthansa Logo
6:20 am - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
21h 35m1 stop Frankfurt am Main
Lufthansa Logo
9:50 pm - 10:55 pmORD  Chicago O'Hare Intl-SOF Sofia
17h 05m1 stop Munich Franz Josef Strauss
$853Lufthansa
Wed, Sep 9 - Fri, Feb 12
United Airlines Logo
6:30 am - 2:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 25m1 stop Frankfurt am Main
United Airlines Logo
3:35 pm - 12:10 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 35m1 stop Munich Franz Josef Strauss
$856United Airlines
Thu, Sep 24 - Wed, Oct 7
United Airlines Logo
6:30 am - 12:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 25m1 stop Frankfurt am Main
United Airlines Logo
3:35 pm - 12:10 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 35m1 stop Munich Franz Josef Strauss
$858United Airlines
Thu, Sep 24 - Wed, Oct 7

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

Our best United Airlines deals on Sofia to Chicago O'Hare Intl Airport flight tickets
United Airlines
Sep 24
SOF6:30 amSofia
16h 25m
1 stop
ORD2:55 pmChicago O'Hare Intl
Oct 7
ORD3:35 pmChicago O'Hare Intl
12h 35m
1 stop
SOF12:10 pmSofia
$856
United Airlines
Sep 17
SOF6:30 amSofia
16h 25m
1 stop
ORD2:55 pmChicago O'Hare Intl
Oct 3
ORD6:00 pmChicago O'Hare Intl
21h 15m
1 stop
SOF11:15 pmSofia
$858
United Airlines
Sep 24
SOF6:30 amSofia
21h 25m
1 stop
ORD7:55 pmChicago O'Hare Intl
Oct 7
ORD3:35 pmChicago O'Hare Intl
12h 35m
1 stop
SOF12:10 pmSofia
$859

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
Oct 25
SOF6:25 amSofia
35h 42m
2 stops
ORD11:07 amChicago O'Hare Intl
Nov 3
ORD3:47 pmChicago O'Hare Intl
18h 33m
2 stops
SOF6:20 pmSofia
$868
Air Canada
Sep 15
SOF6:10 amSofia
22h 02m
2 stops
ORD8:12 pmChicago O'Hare Intl
Nov 19
ORD10:15 amChicago O'Hare Intl
19h 10m
2 stops
SOF1:25 pmSofia
$871
Air Canada
Aug 14
SOF6:10 amSofia
34h 50m
2 stops
ORD9:00 amChicago O'Hare Intl
Sep 17
ORD8:45 amChicago O'Hare Intl
20h 35m
2 stops
SOF1:20 pmSofia
$1,068

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 7, 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

Cheapest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 9/24

2:35 pm-3:10 pm

2 stops32h 35m

Chicago O'Hare Intl

Wed 10/7

9:50 pm-6:00 pm

1 stop12h 10m

$797

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 9/28

2:35 pm-3:10 pm

2 stops56h 35m

Chicago O'Hare Intl

Mon 10/12

5:10 pm-6:00 pm

1 stop16h 50m

$799

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 10/5

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Fri 2/26

8:15 pm-8:55 pm

1 stop16h 40m

$809

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 10/5

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Fri 2/26

8:15 pm-8:55 pm

1 stop16h 40m

$810

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 10/13

4:45 pm-5:50 pm

2 stops33h 05m

Chicago O'Hare Intl

Wed 11/4

9:50 pm-6:20 pm

1 stop12h 30m

$812

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 10/13

3:00 pm-5:50 pm

2 stops34h 50m

Chicago O'Hare Intl

Tue 10/20

4:55 pm-1:25 am

1 stop24h 30m

$833
Quickest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 10/23

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Sun 11/1

6:00 pm-1:15 pm

1 stop11h 15m

$846

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Wed 9/9

6:20 am-7:55 pm

1 stop21h 35m

Chicago O'Hare Intl

Fri 2/12

9:50 pm-10:55 pm

1 stop17h 05m

$853

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 9/24

6:30 am-2:55 pm

1 stop16h 25m

Chicago O'Hare Intl

Wed 10/7

3:35 pm-12:10 pm

1 stop12h 35m

$856

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 9/24

6:30 am-12:55 pm

1 stop14h 25m

Chicago O'Hare Intl

Wed 10/7

3:35 pm-12:10 pm

1 stop12h 35m

$858

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?

Prices are currently low for flights on this route.

Typical prices usually range from $838 to $1,011.
The lowest price recently found on this route was $797.

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

The month of December is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Sofia averaging around $732.

How far in advance should I book a flight from Sofia 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 $804 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 $717 on momondo.

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

As of August 2026, prices for Sofia to Chicago O'Hare Intl Airport flights are approximately 5% 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

Fastest flight time

13h 45m

Direct flights

None
The fastest flight from Sofia to Chicago O'Hare Intl Airport takes 13h 45m
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

Frequently asked questions about flying from Sofia to Chicago O'Hare Intl Airport

  • 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 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
Turkish AirlinesPriceFrom $625Free CancellationRating
7.4
4,469 reviews
Search Turkish Airlines flights
LOTPriceFrom $629Free CancellationRating
7.6
1,213 reviews
Search LOT flights
KLMPriceFrom $652Free CancellationRating
7.8
1,555 reviews
Search KLM flights
Austrian AirlinesPriceFrom $658Free CancellationRating
7.6
950 reviews
Search Austrian Airlines flights
United AirlinesPriceFrom $709Free CancellationRating
7.4
10,081 reviews
Search United Airlines flights
LufthansaPriceFrom $712Free CancellationRating
6.8
8,178 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
Merrillville
Rockford
South Haven
Gurnee
Rosemont
Oak Brook
Orland Park
Naperville
Joliet
New Buffalo
Kenosha
Hammond
Racine
Aurora
Janesville
Elgin
South Holland
Evanston

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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