Bulgaria

$318+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Jul 11 — Jul 181
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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 June 11, 2026.

This Booking.com deal was found by Cheapflights users on 6/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:25 am
ORD
-
VAR
1 stop13h 05m
Turkish Airlines
Mon 10/1210:10 pm
VAR
-
ORD
1 stop19h 30m
Turkish Airlines
Deal found 6/6$803
This Booking.com deal was found by Cheapflights users on 6/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:10 pm
ORD
-
VAR
1 stop17h 10m
Turkish Airlines
Mon 9/289:20 am
VAR
-
ORD
1 stop32h 20m
Turkish Airlines
Deal found 6/8$804
This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 8/244:05 pm
ORD
-
BOJ
1 stop18h 15m
Lufthansa
Sun 10/189:10 am
BOJ
-
ORD
1 stop18h 45m
Lufthansa
Deal found 6/10$852
This FlightHub deal was found by Cheapflights users on 6/8. 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 9/110:30 pm
ORD
-
VAR
1 stop12h 15m
Multiple Airlines
Mon 9/284:00 pm
VAR
-
ORD
2 stops33h 20m
Multiple Airlines
Deal found 6/8$867
This FlightHub deal was found by Cheapflights users on 6/8. 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 9/112:56 pm
ORD
-
VAR
2 stops18h 19m
Austrian Airlines
Mon 9/284:00 pm
VAR
-
ORD
2 stops33h 20m
Austrian Airlines
Deal found 6/8$874
This Booking.com deal was found by Cheapflights users on 6/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:25 am
ORD
-
VAR
1 stop25h 55m
Turkish Airlines
Mon 8/319:20 am
VAR
-
ORD
1 stop32h 20m
Turkish Airlines
Deal found 6/7$877
This United deal was found by Cheapflights users on 6/10. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:50 am
ORD
-
BOJ
2 stops23h 30m
Multiple Airlines
Sun 10/189:10 am
BOJ
-
ORD
1 stop18h 45m
Multiple Airlines
Deal found 6/10$877
This oojo deal was found by Cheapflights users on 6/8. 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.
Sun 7/269:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Sun 10/186:45 pm
SOF
-
ORD
1 stop33h 05m
LOT
Deal found 6/8$881
This KAYAK deal was found by Cheapflights users on 6/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:40 pm
ORD
-
SOF
1 stop17h 35m
Lufthansa
Sun 8/167:25 pm
SOF
-
ORD
1 stop25h 10m
Lufthansa
Deal found 6/10$882
This Gotogate deal was found by Cheapflights users on 6/10. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/911:05 am
ORD
-
SOF
2 stops18h 15m
Multiple Airlines
Tue 8/187:25 pm
SOF
-
ORD
2 stops25h 30m
Multiple Airlines
Deal found 6/10$883
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:40 pm
ORD
-
SOF
1 stop17h 35m
United Airlines
Mon 8/176:10 am
SOF
-
ORD
2 stops16h 45m
United Airlines
Deal found 6/9$884
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:40 pm
ORD
-
SOF
1 stop17h 35m
United Airlines
Mon 8/176:10 am
SOF
-
ORD
2 stops16h 45m
United Airlines
Deal found 6/8$885

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 June 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$803
(Booking.com)

One-way from

$318
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,122
Provider with most accurate pricing for Chicago (CHI)-Sofia flight deals.
Provider most trusted by Cheapflights users for Chicago (CHI)-Sofia flights.
From Chicago O'Hare Intl to Bulgaria
One-way flight from Chicago O'Hare Intl to Bulgaria
Highest demand for flights based on searches. 25% potential increase in price ($260 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 11, 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

Cheapest round-trip

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Mon 8/24

4:05 pm-6:20 pm

1 stop18h 15m

Bourgas

Sun 10/18

9:10 am-7:55 pm

1 stop18h 45m

$852

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Mon 8/24

10:50 am-6:20 pm

2 stops23h 30m

Bourgas

Sun 10/18

9:10 am-7:55 pm

1 stop18h 45m

$877

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 10/9

12:55 pm-12:10 pm

2 stops15h 15m

Sofia

Tue 10/27

2:05 pm-9:05 pm

1 stop14h 00m

$890

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Sun 9/6

5:56 pm-12:20 pm

2 stops34h 24m

Bourgas

Sun 9/27

9:50 am-12:35 pm

1 stop34h 45m

$895

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 8/21

12:29 pm-2:00 pm

2 stops17h 31m

Sofia

Fri 9/18

7:00 am-5:13 pm

2 stops18h 13m

$902

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 8/22

8:40 pm-12:10 pm

2 stops31h 30m

Sofia

Sun 8/30

6:20 am-2:00 pm

2 stops15h 40m

$903

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 7/27

2:20 pm-12:10 pm

2 stops13h 50m

Sofia

Wed 8/12

12:55 pm-12:55 pm

2 stops32h 00m

$904

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 8/6

2:20 pm-12:10 pm

2 stops13h 50m

Sofia

Mon 9/7

3:40 pm-3:55 pm

1 stop32h 15m

$912

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 7/31

9:40 pm-11:15 pm

1 stop17h 35m

Sofia

Mon 8/17

6:10 am-12:35 pm

1 stop14h 25m

$912
Quickest round-trip

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 7/30

3:35 pm-12:10 pm

1 stop12h 35m

Sofia

Mon 8/17

6:10 am-12:35 pm

1 stop14h 25m

$912

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 41 resultsSorted by cheapest first
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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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $396). Flying from Chicago O'Hare Intl Airport to Bulgaria in July is currently the most expensive (average of $1,447). 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.

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Bulgaria?

The best time to book flights from Chicago O'Hare Intl Airport to Bulgaria is 48 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 June 11, 2026.
Read reviews from past customers who have flown Austrian Airlines,LOT, andTurkish 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.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

Food

6.8

Entertainment

6.8

Comfort

7.3

Boarding

7.6

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

KENNETH,Mar 2026

VIE - EWR

Everything was great, took off on time, arrived on time, boarding was smooth, food and movies were great.

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 $803, Turkish Airlines can have you in Bulgaria from Chicago O'Hare Intl Airport in 13h 05m. Chicago O'Hare Intl Airport and Bulgaria are separated by a distance of 5324 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 $335, respectively.

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

  • 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, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $396). Flying from Chicago O'Hare Intl Airport to Bulgaria in July is currently the most expensive (average of $1,447). 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 June 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$508Average$1,161FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$523Average$800FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$732FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$561Average$919FlexibilityNo cancel feeOn-time69%
SWISSCheapest$565Average$824FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$575Average$884FlexibilityNo cancel feeOn-time78%
LOTCheapest$578Average$836FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$578Average$915FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$585Average$866FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$609Average$644FlexibilityNo cancel feeOn-time70%

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