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Cheap flights from Sofia to Chicago from $407

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 - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Warsaw Frederic Chopin
LOT Logo
9:50 pm - 5:55 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 05m1 stop Warsaw Frederic Chopin
$803LOT
Tue, Dec 15 - Wed, Mar 10
Multiple Airlines Logo
10:20 pm - 2:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
24h 35m2 stops Valencia Madrid Barajas
Multiple Airlines Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
$805Multiple Airlines
Fri, Jan 15 - Thu, Mar 4
Multiple Airlines Logo
10:20 pm - 2:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
24h 35m2 stops Valencia Madrid Barajas
Multiple Airlines Logo
9:50 pm - 6:20 pmORD  Chicago O'Hare Intl-SOF Sofia
12h 30m1 stop Munich Franz Josef Strauss
$805Multiple Airlines
Fri, Jan 15 - Fri, Mar 5
LOT Logo
2:35 pm - 7:55 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Warsaw Frederic Chopin
LOT Logo
9:50 pm - 1:50 pmORD  Chicago O'Hare Intl-SOF Sofia
32h 00m1 stop Warsaw Frederic Chopin
$806LOT
Tue, Dec 15 - Wed, Mar 10
Turkish Airlines Logo
9:30 am - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 50m1 stop Istanbul
Turkish Airlines Logo
8:15 pm - 8:55 pmORD  Chicago O'Hare Intl-SOF Sofia
16h 40m1 stop Istanbul
$812Turkish Airlines
Thu, Dec 17 - Fri, Jan 8
Turkish Airlines Logo
9:30 am - 6:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
16h 50m1 stop Istanbul
Turkish Airlines Logo
11:45 am - 10:50 amORD  Chicago O'Hare Intl-SOF Sofia
15h 05m1 stop Istanbul
$822Turkish Airlines
Thu, Dec 17 - Thu, Jan 7
Austrian Airlines Logo
12:35 pm - 2:00 pmSOF  Sofia-ORD Chicago O'Hare Intl
33h 25m1 stop Vienna Intl
Austrian Airlines Logo
4:20 pm - 11:50 amORD  Chicago O'Hare Intl-SOF Sofia
11h 30m1 stop Vienna Intl
$872Austrian Airlines
Fri, Nov 20 - Fri, Dec 4
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 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
$876Lufthansa
Wed, Jan 20 - Thu, Feb 25
Lufthansa Logo
6:25 am - 1:10 pmSOF  Sofia-ORD Chicago O'Hare Intl
14h 45m1 stop Frankfurt am Main
Lufthansa Logo
4:20 pm - 1:25 pmORD  Chicago O'Hare Intl-SOF Sofia
13h 05m1 stop Frankfurt am Main
$878Lufthansa
Wed, Jan 20 - Sun, Feb 21
Austrian Airlines Logo
8:00 am - 1:20 pmSOF  Sofia-ORD Chicago O'Hare Intl
13h 20m1 stop Vienna Intl
Austrian Airlines Logo
1:12 pm - 11:55 pmORD  Chicago O'Hare Intl-SOF Sofia
26h 43m2 stops Washington, D.C. Dulles Intl Vienna Intl
$907Austrian Airlines
Mon, Apr 12 - Tue, Apr 20

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Turkish Airlines flights from Sofia to Chicago

Our best Turkish Airlines deals on Sofia to Chicago flight tickets
Turkish Airlines
Dec 17
SOF9:30 amSofia
16h 50m
1 stop
ORD6:20 pmChicago O'Hare Intl
Jan 8
ORD8:15 pmChicago O'Hare Intl
16h 40m
1 stop
SOF8:55 pmSofia
$812
Turkish Airlines
Dec 17
SOF9:30 amSofia
16h 50m
1 stop
ORD6:20 pmChicago O'Hare Intl
Jan 7
ORD11:45 amChicago O'Hare Intl
15h 05m
1 stop
SOF10:50 amSofia
$822
Turkish Airlines
Nov 17
SOF9:45 pmSofia
20h 15m
1 stop
ORD10:00 amChicago O'Hare Intl
Jan 11
ORD11:45 amChicago O'Hare Intl
25h 10m
1 stop
SOF8:55 pmSofia
$911

LOT flights from Sofia to Chicago

Our best LOT deals on Sofia to Chicago flight tickets
LOT
Dec 15
SOF2:35 pmSofia
13h 20m
1 stop
ORD7:55 pmChicago O'Hare Intl
Mar 10
ORD9:50 pmChicago O'Hare Intl
12h 05m
1 stop
SOF5:55 pmSofia
$803
LOT
Dec 15
SOF2:35 pmSofia
13h 20m
1 stop
ORD7:55 pmChicago O'Hare Intl
Mar 10
ORD9:50 pmChicago O'Hare Intl
32h 00m
1 stop
SOF1:50 pmSofia
$806
LOT
Apr 15
SOF6:45 pmSofia
33h 05m
2 stops
ORD7:50 pmChicago O'Hare Intl
Apr 18
ORD9:50 pmChicago O'Hare Intl
12h 10m
1 stop
SOF6:00 pmSofia
$808

momondo Fare Finder

 
Use the filters below to find and compare flights from Sofia to Chicago that are best for you.

Fly from

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Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 12/15

2:35 pm-7:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Wed 3/10

9:50 pm-5:55 pm

1 stop12h 05m

$803

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 1/15

10:20 pm-2:55 pm

2 stops24h 35m

Chicago O'Hare Intl

Thu 3/4

9:50 pm-6:20 pm

1 stop12h 30m

$805

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 1/15

10:20 pm-2:55 pm

2 stops24h 35m

Chicago O'Hare Intl

Fri 3/5

9:50 pm-6:20 pm

1 stop12h 30m

$805

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 12/15

2:35 pm-7:55 pm

1 stop13h 20m

Chicago O'Hare Intl

Wed 3/10

9:50 pm-1:50 pm

1 stop32h 00m

$806

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 12/17

9:30 am-6:20 pm

1 stop16h 50m

Chicago O'Hare Intl

Fri 1/8

8:15 pm-8:55 pm

1 stop16h 40m

$812

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 12/17

9:30 am-6:20 pm

1 stop16h 50m

Chicago O'Hare Intl

Thu 1/7

11:45 am-10:50 am

1 stop15h 05m

$822

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 11/20

12:35 pm-2:00 pm

1 stop33h 25m

Chicago O'Hare Intl

Fri 12/4

4:20 pm-11:50 am

1 stop11h 30m

$872

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Wed 1/20

6:25 am-1:10 pm

1 stop14h 45m

Chicago O'Hare Intl

Thu 2/25

9:50 pm-10:55 pm

1 stop17h 05m

$876

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Wed 1/20

6:25 am-1:10 pm

1 stop14h 45m

Chicago O'Hare Intl

Sun 2/21

4:20 pm-1:25 pm

1 stop13h 05m

$878

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 4/12

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

Tue 4/20

1:12 pm-11:55 pm

2 stops26h 43m

$907

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $767 to $1,027.
The lowest price recently found on this route was $803.

What is the cheapest month to fly to Chicago?

The month of May is, on average, the cheapest month to fly to Chicago from Sofia, with most prices found around $778. If you’re not able to fly to Chicago in May, then February is your next best option. Flight prices from Sofia to Chicago during February average around $791.

How far in advance should I book a flight from Sofia 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 $844 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 $705 on momondo.

How have Sofia to Chicago flight prices changed over time?

As of November 2026, prices for Sofia to Chicago flights are approximately 54% 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

Best Price Found

$407

Fastest flight time

12h 40m

Direct flights

None
The best one-way flight to Chicago from Sofia in the past 72 hours is $407. The best round-trip flight deal from Sofia to Chicago found on momondo in the last 72 hours is $803.
The fastest flight from Sofia to Chicago takes 12h 40m
There are no direct flights from Sofia to Chicago. There are no popular flight routes from Sofia to Chicago.
Search flight deals

Frequently asked questions about flying from Sofia to Chicago

  • How far is Sofia to Chicago by plane?

    A flight from Sofia to Chicago will travel around 5185.9 mi. 12h 40m 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 $632Free CancellationRating
7.5
1,191 reviews
Search LOT flights
KLMPriceFrom $650Free CancellationRating
7.8
1,594 reviews
Search KLM flights
Turkish AirlinesPriceFrom $685Free CancellationRating
7.4
4,473 reviews
Search Turkish Airlines flights
LufthansaPriceFrom $747Free CancellationRating
6.8
8,297 reviews
Search Lufthansa flights
United AirlinesPriceFrom $758Free CancellationRating
7.3
10,468 reviews
Search United Airlines flights
Austrian AirlinesPriceFrom $845Free CancellationRating
7.5
981 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
Portage
Lansing
Saint Joseph
Benton Harbor
Valparaiso
Schererville
Munster
Chesterton
Monticello
Crown Point
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

Chicago Midway Airport
Chicago O'Hare Intl Airport
Chicago Greater Rockford Airport