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Cheap flights from Chicago to Bulgaria from $248

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Bulgaria departing on 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Bulgaria

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:10 pm - 8:15 pm
ORD
-
SOF
16h 05m
1 stop
Turkish Airlines Logo
9:35 am - 9:40 am
SOF
-
ORD
32h 05m
1 stop
$517Turkish Airlines
Wed, Apr 15 - Sun, May 3
Turkish Airlines Logo
8:10 pm - 8:15 pm
ORD
-
SOF
16h 05m
1 stop
Turkish Airlines Logo
9:35 am - 9:40 am
SOF
-
ORD
32h 05m
1 stop
$524Turkish Airlines
Wed, Apr 8 - Wed, Apr 29
Turkish Airlines Logo
8:20 pm - 8:45 am
ORD
-
SOF
28h 25m
1 stop
Turkish Airlines Logo
4:00 pm - 11:05 am
SOF
-
ORD
26h 05m
1 stop
$525Turkish Airlines
Thu, Feb 26 - Sun, Mar 8
Multiple Airlines Logo
1:49 pm - 1:55 pm
MDW
-
SOF
16h 06m
2 stops
Multiple Airlines Logo
7:00 am - 4:14 pm
SOF
-
MDW
17h 14m
2 stops
$626Multiple Airlines
Fri, Feb 20 - Sat, Feb 28
Multiple Airlines Logo
1:28 pm - 2:05 pm
MDW
-
SOF
16h 37m
2 stops
Multiple Airlines Logo
7:00 am - 5:45 pm
SOF
-
MDW
18h 45m
2 stops
$627Multiple Airlines
Wed, Feb 18 - Fri, Mar 6
KLM Logo
1:10 pm - 2:00 pm
MDW
-
SOF
16h 50m
2 stops
KLM Logo
7:00 am - 5:58 pm
SOF
-
MDW
18h 58m
2 stops
$630KLM
Wed, Apr 8 - Sun, Apr 19
KLM Logo
1:23 pm - 2:00 pm
MDW
-
SOF
16h 37m
2 stops
KLM Logo
7:00 am - 5:56 pm
SOF
-
MDW
18h 56m
2 stops
$631KLM
Sat, Apr 25 - Sat, May 9
Lufthansa Logo
10:30 pm - 11:30 am
ORD
-
VAR
29h 00m
2 stops
Lufthansa Logo
1:35 pm - 6:15 pm
VAR
-
ORD
36h 40m
2 stops
$870Lufthansa
Sat, Jul 4 - Tue, Aug 25
Aer Lingus Logo
9:00 pm - 10:35 pm
ORD
-
BOJ
17h 35m
1 stop
Aer Lingus Logo
11:25 pm - 7:15 pm
BOJ
-
ORD
27h 50m
1 stop
$1,131Aer Lingus
Mon, Jun 1 - Thu, Jun 18
Aer Lingus Logo
10:15 pm - 10:35 pm
ORD
-
BOJ
40h 20m
2 stops
Aer Lingus Logo
11:25 pm - 7:15 pm
BOJ
-
ORD
27h 50m
1 stop
$1,147Aer Lingus
Sun, May 31 - Thu, Jun 18

Lufthansa flights from Chicago to Bulgaria

Our best Lufthansa deals on Chicago to Bulgaria flight tickets
Lufthansa
Mar 4
ORD9:50 pmChicago O'Hare Intl
12h 30m
1 stop
SOF6:20 pmSofia
Mar 18
SOF6:05 amSofia
15h 20m
2 stops
ORD2:25 pmChicago O'Hare Intl
$568
Lufthansa
Feb 5
ORD9:50 pmChicago O'Hare Intl
16h 55m
1 stop
SOF10:45 pmSofia
Mar 24
SOF6:05 amSofia
15h 05m
2 stops
ORD2:10 pmChicago O'Hare Intl
$575
Lufthansa
Feb 6
ORD9:50 pmChicago O'Hare Intl
16h 55m
1 stop
SOF10:45 pmSofia
Apr 1
SOF6:20 amSofia
14h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
$602

Turkish Airlines flights from Chicago to Bulgaria

Our best Turkish Airlines deals on Chicago to Bulgaria flight tickets
Turkish Airlines
Feb 8
ORD8:20 pmChicago O'Hare Intl
16h 15m
1 stop
VAR8:35 pmVarna
Mar 3
VAR10:00 amVarna
16h 25m
1 stop
ORD6:25 pmChicago O'Hare Intl
$504
Turkish Airlines
Feb 8
ORD8:20 pmChicago O'Hare Intl
28h 50m
1 stop
VAR9:10 amVarna
Feb 24
VAR10:00 amVarna
32h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
$515
Turkish Airlines
Apr 15
ORD8:10 pmChicago O'Hare Intl
16h 05m
1 stop
SOF8:15 pmSofia
May 3
SOF9:35 amSofia
32h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$517

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Bulgaria 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 February 3, 2026.
Use the filters below to find and compare flights from Chicago to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/15

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

Sun 5/3

9:35 am-9:40 am

1 stop32h 05m

$517

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/8

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

Wed 4/29

9:35 am-9:40 am

1 stop32h 05m

$524

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 2/26

8:20 pm-8:45 am

1 stop28h 25m

Sofia

Sun 3/8

4:00 pm-11:05 am

1 stop26h 05m

$525

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Fri 2/20

1:49 pm-1:55 pm

2 stops16h 06m

Sofia

Sat 2/28

7:00 am-4:14 pm

2 stops17h 14m

$626

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Wed 2/18

1:28 pm-2:05 pm

2 stops16h 37m

Sofia

Fri 3/6

7:00 am-5:45 pm

2 stops18h 45m

$627

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Wed 4/8

1:10 pm-2:00 pm

2 stops16h 50m

Sofia

Sun 4/19

7:00 am-5:58 pm

2 stops18h 58m

$630

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sat 4/25

1:23 pm-2:00 pm

2 stops16h 37m

Sofia

Sat 5/9

7:00 am-5:56 pm

2 stops18h 56m

$631

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Sat 7/4

10:30 pm-11:30 am

2 stops29h 00m

Varna

Tue 8/25

1:35 pm-6:15 pm

2 stops36h 40m

$870

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Mon 6/1

9:00 pm-10:35 pm

1 stop17h 35m

Bourgas

Thu 6/18

11:25 pm-7:15 pm

1 stop27h 50m

$1,131

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Sun 5/31

10:15 pm-10:35 pm

2 stops40h 20m

Bourgas

Thu 6/18

11:25 pm-7:15 pm

1 stop27h 50m

$1,147

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 Bulgaria from

How to get the cheapest flight ticket from Chicago to Bulgaria

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 Bulgaria?

If you aren’t able to travel to Bulgaria during the month of February, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $589.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $747 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Chicago for as low as $711 on momondo.

Can stopping save me money on Chicago to Bulgaria flights?

You could potentially save up to 23% on your flight if you consider stops on a Chicago to Bulgaria flight.

Cheap Chicago to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Bulgaria

Fastest flight time

12h 15m

Direct flights

None
The fastest flight from Chicago to Bulgaria takes 12h 15m
There are no direct flights from Chicago to Bulgaria. There are no popular flight routes from Chicago to Bulgaria.
Search flight deals

  • When did momondo last update prices for flights from Chicago to Bulgaria?

    Prices for flights from Chicago to Bulgaria were last updated today.

  • How many operators does momondo search for flights from Chicago to Bulgaria?

  • How old do you have to be to fly from Chicago to Bulgaria?

    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 Chicago to Bulgaria.

  • What documentation or ID do you need to fly to Bulgaria?

    The necessary travel and health documents for your Bulgaria 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.

Best airlines flying from Chicago to Bulgaria

Compare and see reviews for airlines that fly from Chicago to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
ITA AirwaysPriceFrom $469Free CancellationRating
6.7
1,144 reviews
Search ITA Airways flights
Turkish AirlinesPriceFrom $520Free CancellationRating
7.3
4,210 reviews
Search Turkish Airlines flights
KLMPriceFrom $533Free CancellationRating
7.7
1,448 reviews
Search KLM flights
United AirlinesPriceFrom $566Free CancellationRating
7.4
9,235 reviews
Search United Airlines flights
SWISSPriceFrom $569Free CancellationRating
7.6
1,864 reviews
Search SWISS flights
Air FrancePriceFrom $585Free CancellationRating
7.4
1,531 reviews
Search Air France flights
LufthansaPriceFrom $586Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
LOTPriceFrom $590Free CancellationRating
7.5
1,178 reviews
Search LOT flights
Austrian AirlinesPriceFrom $606Free CancellationRating
7.5
896 reviews
Search Austrian Airlines flights
British AirwaysPriceFrom $611Free CancellationRating
6.7
7,712 reviews
Search British Airways flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Bulgaria for you.

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

Yes. momondo allows you to filter the results for Chicago to Bulgaria flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Bulgaria from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to Bulgaria from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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