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$224+ Cheap flights from O'Hare Intl (ORD) to Bulgaria

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Bulgaria

Cheapest flights from O'Hare Intl to Bulgaria
Explore the most affordable flight options available from O'Hare Intl to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.

This FlightHub deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Thu 5/219:35 am
SOF
-
ORD
1 stop16h 40m
Turkish Airlines
Deal found 2/24$542
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
Thu 5/213:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 2/25$546
This oojo deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/411:50 am
ORD
-
SOF
1 stop19h 20m
Turkish Airlines
Wed 3/119:40 pm
SOF
-
ORD
1 stop28h 45m
Turkish Airlines
Deal found 2/26$547
This oojo deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Fri 5/82:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 2/25$548
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:10 pm
ORD
-
VAR
1 stop22h 35m
Turkish Airlines
Wed 9/309:35 am
VAR
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 2/25$559
This FlightHub deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1612:50 pm
ORD
-
SOF
1 stop12h 55m
Turkish Airlines
Wed 4/153:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 2/24$562
This FlightHub deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
Fri 9/182:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 2/25$568
This FlightHub deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Tue 9/229:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 2/26$570
This FlightHub deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Tue 4/149:05 pm
SOF
-
ORD
1 stop29h 10m
Turkish Airlines
Deal found 2/27$572
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/49:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Thu 5/75:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Deal found 2/25$573
This CrystalTravel deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1610:55 pm
ORD
-
SOF
1 stop11h 55m
LOT
Tue 4/142:35 pm
SOF
-
ORD
1 stop13h 15m
LOT
Deal found 2/25$575
This FlightHub deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Wed 5/139:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 2/26$576

Find flight deals from O'Hare Intl to Bulgaria

Keep the following information in mind while searching for O'Hare Intl to Bulgaria flight deals. Data was last updated February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$542
(FlightHub)

One-way from

$224
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$589
Provider with most accurate pricing for Chicago (CHI)-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Sofia flights.
Search Deals
From Chicago O'Hare Intl to Bulgaria
Search Deals
One-way flight from Chicago O'Hare Intl to Bulgaria
Search Deals
Highest demand for flights based on searches. 26% potential increase in price ($260 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated February 28, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 4/4

9:50 pm-6:00 pm

1 stop12h 10m

Sofia

Thu 5/7

2:35 pm-7:50 pm

1 stop13h 15m

$599

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Fri 4/3

11:25 am-9:20 pm

1 stop25h 55m

Varna

Sun 4/19

9:35 am-9:40 am

1 stop32h 05m

$671

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 7/24

3:10 pm-10:50 am

1 stop11h 40m

Sofia

Thu 8/20

6:30 am-7:55 pm

1 stop21h 25m

$716

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 7/13

4:50 pm-2:00 pm

1 stop13h 10m

Sofia

Wed 8/19

7:00 am-2:30 pm

1 stop15h 30m

$725

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 3/29

2:10 pm-2:00 pm

2 stops15h 50m

Sofia

Thu 4/23

7:00 am-2:15 pm

1 stop15h 15m

$736

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 5/1

10:00 am-12:10 pm

2 stops18h 10m

Sofia

Tue 5/12

6:10 am-11:00 am

1 stop12h 50m

$737

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 4/19

11:15 am-12:10 pm

2 stops16h 55m

Sofia

Sun 5/3

6:20 am-8:08 pm

2 stops21h 48m

$740

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 3/28

5:30 pm-2:00 am

1 stop25h 30m

Sofia

Sat 10/3

5:00 am-9:15 pm

1 stop24h 15m

$782

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 4/3

2:10 pm-2:00 pm

2 stops15h 50m

Sofia

Thu 5/7

7:00 am-6:15 pm

2 stops19h 15m

$794

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 3/18

10:00 am-6:20 pm

2 stops25h 20m

Sofia

Wed 4/1

6:20 am-7:26 am

2 stops33h 06m

$811

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/28

Showing 1-10 of 33 resultsSorted by cheapest first
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4

Best time to book a flight from O'Hare Intl to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Bulgaria

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Bulgaria?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $472). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $825). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Bulgaria

Get insights into the airlines that provide service to Bulgaria. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bulgaria. Reviews last updated February 28, 2026.
Read reviews from past customers who have flown Austrian Airlines, LOT, and United Airlines from Chicago O'Hare Intl Airport to Bulgaria. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Austrian Airlines
7.6
Good
901 reviews
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
LOT
7.5
Good
1,182 reviews
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
United Airlines
7.4
Good
9,362 reviews
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Turkish Airlines
7.3
Good
4,238 reviews
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful
Lufthansa
6.8
Okay
7,817 reviews
Austrian Airlines
7.6
Good
901 reviews

Comfort

7.3

Entertainment

6.8

Boarding

7.6

Crew

8.1

Overall

7.6

Food

6.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

VIE - DXB

Awful . Flight was overbooked. The boarding cards could not be printed, you had to wait more than one hour in a line that only two kiosks were working, staff was leaving and inside the plane they had the same seats in 3 cases at least winter twice!! I’ve never experienced such a disorganization! Awful

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago O'Hare Intl Airport to Bulgaria?

    For as low as $716, LOT can have you in Bulgaria from Chicago O'Hare Intl Airport in 11h 40m. Chicago O'Hare Intl Airport and Bulgaria are separated by a distance of 5194 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Bulgaria one-way?

    $295 is the cheapest one-way deal found within the past few days, from Turkish Airlines. You may also be able to find cheap deals on United Airlines and Air Serbia, with prices starting from $305 and $338, respectively.

  • What are the most popular routes from Chicago O'Hare Intl Airport to Bulgaria?

    The most popular flight routes from Chicago O'Hare Intl Airport to Bulgaria are Chicago O'Hare Intl - Sofia, Chicago O'Hare Intl - Varna and Chicago O'Hare Intl - Bourgas.

  • Can I find deals for flights from O'Hare Intl to Bulgaria that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Bulgaria?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Bulgaria.

  • Can I find deals for business class flights from O'Hare Intl to Bulgaria?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Bulgaria by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $472). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $825). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from O'Hare Intl to Bulgaria

Discover the top 10 airlines that operate flights from O'Hare Intl to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$469Average$973FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$521Average$898FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$652FlexibilityNo cancel feeOn-time75%
SWISSCheapest$565Average$808FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$566Average$793FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$586Average$871FlexibilityNo cancel feeOn-time76%
LOTCheapest$587Average$886FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$588Average$904FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$609Average$749FlexibilityNo cancel feeOn-time70%

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