Bulgaria

$316+ 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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
May 21 — May 281
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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 April 21, 2026.

This Justfly.com deal was found by Cheapflights users on 4/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/188:10 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
Tue 9/13:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 4/16$676
This FlightHub deal was found by Cheapflights users on 4/20. 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 7/308:10 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
Fri 9/182:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 4/20$680
This FlightHub deal was found by Cheapflights users on 4/19. 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 9/148:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Mon 9/289:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 4/19$681
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Fri 9/1111:25 am
ORD
-
SOF
1 stop19h 35m
Turkish Airlines
Sat 9/193:50 pm
SOF
-
ORD
1 stop25h 50m
Turkish Airlines
Deal found 4/17$685
This oojo deal was found by Cheapflights users on 4/17. 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.
Fri 8/148:10 pm
ORD
-
SOF
1 stop33h 05m
Turkish Airlines
Sat 9/129:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 4/17$686
This Justfly.com deal was found by Cheapflights users on 4/20. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:10 pm
ORD
-
SOF
1 stop16h 05m
Turkish Airlines
Sun 9/202:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 4/20$690
This oojo deal was found by Cheapflights users on 4/16. 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 4/198:10 pm
ORD
-
SOF
1 stop28h 35m
Turkish Airlines
Tue 5/59:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 4/16$691
This KAYAK deal was found by Cheapflights users on 4/19. 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.
Fri 10/911:25 am
ORD
-
SOF
1 stop19h 35m
Turkish Airlines
Tue 10/209:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 4/19$692
This FlightHub deal was found by Cheapflights users on 4/19. 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.
Fri 8/2111:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
Fri 9/42:05 pm
SOF
-
ORD
1 stop27h 35m
Turkish Airlines
Deal found 4/19$694
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Wed 8/198:10 pm
ORD
-
SOF
1 stop33h 05m
Turkish Airlines
Wed 9/23:50 pm
SOF
-
ORD
1 stop34h 25m
Turkish Airlines
Deal found 4/17$699
This KAYAK deal was found by Cheapflights users on 4/19. 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.
Sat 9/128:10 pm
ORD
-
SOF
1 stop34h 50m
Turkish Airlines
Tue 9/299:35 am
SOF
-
ORD
1 stop32h 05m
Turkish Airlines
Deal found 4/19$702
This oojo deal was found by Cheapflights users on 4/18. 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 8/1711:25 am
ORD
-
SOF
1 stop24h 50m
Turkish Airlines
Mon 8/319:05 pm
SOF
-
ORD
1 stop20h 35m
Turkish Airlines
Deal found 4/18$712

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 April 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$676
(Justfly.com)

One-way from

$316
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$721
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. 24% potential increase in price ($236 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
Average for round-trip flights in April 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 April 21, 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

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Thu 10/15

8:10 pm-2:55 am

1 stop22h 45m

Varna

Mon 10/19

10:10 pm-9:40 am

1 stop19h 30m

$743

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 8/3

4:40 pm-3:30 pm

1 stop14h 50m

Sofia

Sat 10/3

5:00 am-9:15 pm

1 stop24h 15m

$776

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Sat 8/15

9:40 pm-7:35 pm

2 stops37h 55m

Varna

Tue 8/25

9:10 pm-3:55 pm

1 stop26h 45m

$833

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 9/1

12:57 pm-12:10 pm

2 stops15h 13m

Sofia

Wed 9/30

6:20 am-8:12 pm

2 stops21h 52m

$845

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 9/8

12:57 pm-12:10 pm

2 stops15h 13m

Sofia

Wed 9/30

6:20 am-2:52 pm

2 stops16h 32m

$845

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 7/28

1:00 pm-2:00 pm

2 stops17h 00m

Sofia

Tue 8/18

7:00 am-6:07 pm

2 stops19h 07m

$848

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 7/28

3:10 pm-1:05 pm

1 stop13h 55m

Sofia

Tue 8/18

2:10 pm-2:55 pm

1 stop32h 45m

$864

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 8/17

1:30 pm-2:00 pm

2 stops16h 30m

Sofia

Mon 8/31

7:00 am-4:45 pm

2 stops17h 45m

$878

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 8/7

1:00 pm-2:00 pm

2 stops17h 00m

Sofia

Sat 8/22

7:00 am-3:10 pm

1 stop16h 10m

$895

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 8/1

2:31 pm-2:00 pm

2 stops15h 29m

Sofia

Tue 9/8

7:00 am-3:10 pm

1 stop16h 10m

$901

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/19

Showing 1-10 of 45 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 June is currently the most expensive (average of $1,346). 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 April 21, 2026.
Read reviews from past customers who have flown SWISS,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

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Food

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Food

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Food

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Food

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

Food

7.1

Boarding

7.7

Entertainment

6.8

Crew

8.3

Overall

7.6

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Thomas,Mar 2026

BOS - ZRH

The business class seats on the new Swiss A350 are hard as a rock. Seems like a bit of a miss on the new "Swiss Senses" experience. Other than that, excellent service.

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 $776, Turkish Airlines can have you in Bulgaria from Chicago O'Hare Intl Airport in 14h 50m. 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 $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 June is currently the most expensive (average of $1,346). 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 April 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$425Average$654FlexibilityNo cancel feeOn-time75%
ITA AirwaysCheapest$508Average$1,134FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$521Average$814FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$561Average$820FlexibilityNo cancel feeOn-time69%
SWISSCheapest$564Average$821FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$575Average$844FlexibilityNo cancel feeOn-time78%
LOTCheapest$580Average$870FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$582Average$823FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$609Average$649FlexibilityNo cancel feeOn-time70%

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