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$336+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
nov. 13 — nov. 201
jue. 11/13
jue. 11/20
1 adult, Economy
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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 octubre 14, 2025.

This Expedia deal was found by Cheapflights users on 10/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/2710:35 amORD - SOF
2 stops19h 20mAir France
jue. 12/47:10 amSOF - ORD
1 stop16h 00mAir France
Deal found 10/13$537
This Air France deal was found by Cheapflights users on 10/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:20 pmORD - SOF
1 stop12h 35mMultiple Airlines
sáb. 11/227:00 amSOF - ORD
2 stops18h 17mMultiple Airlines
Deal found 10/12$539
This FlightHub deal was found by Cheapflights users on 10/13. 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.
mar. 11/1811:50 amORD - SOF
1 stop25h 00mTurkish Airlines
lun. 3/169:35 amSOF - ORD
1 stop32h 30mTurkish Airlines
Deal found 10/13$540
This Expedia deal was found by Cheapflights users on 10/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/2711:19 amORD - SOF
2 stops18h 46mKLM
jue. 12/47:00 amSOF - ORD
2 stops18h 46mKLM
Deal found 10/12$542
This Air France deal was found by Cheapflights users on 10/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/122:35 pmORD - SOF
2 stops15h 30mMultiple Airlines
mié. 11/267:00 amSOF - ORD
2 stops17h 52mMultiple Airlines
Deal found 10/12$543
This Air France deal was found by Cheapflights users on 10/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/131:25 pmORD - SOF
2 stops16h 30mMultiple Airlines
mié. 11/267:00 amSOF - ORD
2 stops17h 52mMultiple Airlines
Deal found 10/14$544
This KLM deal was found by Cheapflights users on 10/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/272:35 pmORD - SOF
2 stops15h 30mMultiple Airlines
jue. 12/47:10 amSOF - ORD
1 stop16h 00mMultiple Airlines
Deal found 10/13$545
This Mytrip deal was found by Cheapflights users on 10/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/49:50 pmORD - SOF
1 stop16h 55mMultiple Airlines
mar. 11/186:00 amSOF - ORD
2 stops22h 00mMultiple Airlines
Deal found 10/14$554
This Kiwi.com deal was found by Cheapflights users on 10/13. 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.
lun. 11/176:50 pmORD - SOF
2 stops15h 30mSWISS
lun. 3/163:00 pmSOF - ORD
1 stop33h 20mSWISS
Deal found 10/13$557
This Turkish Airlines deal was found by Cheapflights users on 10/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/311:50 amORD - VAR
1 stop24h 45mTurkish Airlines
dom. 12/710:00 amVAR - ORD
1 stop32h 05mTurkish Airlines
Deal found 10/13$634
This Lufthansa deal was found by Cheapflights users on 10/12. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/310:35 pmORD - VAR
2 stops32h 40mLufthansa
dom. 12/75:40 pmVAR - ORD
1 stop27h 30mLufthansa
Deal found 10/12$654

Cheap 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 octubre 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$537
(Expedia)

One-way from

$336
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$628
Provider with most accurate pricing for Chicago (CHI)-Sofia flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Sofia flights.
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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 ($261 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 octubre 14, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bulgaria that are best for you.

Fly from

O'Hare Intl

Fly to

Bulgaria

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

jue. 1/22

2:10 pm-2:05 pm

2 stops15h 55m

Sofia

sáb. 2/14

7:00 am-2:20 pm

1 stop15h 20m

$539

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

jue. 11/27

11:19 am-2:05 pm

2 stops18h 46m

Sofia

jue. 12/4

7:00 am-5:46 pm

2 stops18h 46m

$542

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 11/17

2:35 pm-2:05 pm

2 stops15h 30m

Sofia

lun. 3/16

7:00 am-3:20 pm

1 stop15h 20m

$573

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 11/4

6:00 pm-6:20 pm

1 stop16h 20m

Sofia

mié. 11/26

6:10 am-2:55 pm

2 stops16h 45m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 11/3

9:50 pm-10:45 pm

1 stop16h 55m

Sofia

vie. 11/21

6:10 am-8:00 pm

2 stops21h 50m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mié. 11/12

9:50 pm-6:20 pm

1 stop12h 30m

Sofia

mié. 11/26

6:10 am-2:55 pm

2 stops16h 45m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 11/3

9:50 pm-10:45 pm

1 stop16h 55m

Sofia

jue. 11/20

6:00 am-8:00 pm

2 stops22h 00m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 11/4

4:00 pm-6:20 pm

2 stops18h 20m

Sofia

mar. 11/25

6:00 am-2:55 pm

2 stops16h 55m

$582

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

mié. 12/3

11:50 am-8:35 pm

1 stop24h 45m

Varna

dom. 12/7

10:00 am-10:05 am

1 stop32h 05m

$634

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

mié. 12/3

10:35 pm-3:15 pm

2 stops32h 40m

Varna

dom. 12/7

5:40 pm-1:10 pm

1 stop27h 30m

$654

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/12

Showing 1-10 of 19 results
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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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $484). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $826). 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.

What is the cheapest time of day to fly from ORD to BG?

Find hourly flight availability from O'Hare Intl to Bulgaria. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 14, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 9% on flights from Chicago O'Hare Intl Airport to Bulgaria by exploring options for tickets in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Bulgaria?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Bulgaria. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Bulgaria flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 octubre 14, 2025.
Read reviews from past customers who have flown LOT, Austrian Airlines, 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.
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
LOT
7.6
Good
1,130 reviews
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Austrian Airlines
7.6
Good
853 reviews
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
United Airlines
7.4
Good
8,977 reviews
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Turkish Airlines
7.3
Good
4,010 reviews
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights
Lufthansa
6.8
Okay
7,489 reviews
LOT
7.6
Good
1,130 reviews

Food

7.1

Crew

8.2

Comfort

7.5

Entertainment

6.9

Boarding

7.6

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Rami,Sep 2025

LAX - WAW

The second leg. Very tight seats No WiFi on both flights

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 $539, KLM can have you in Bulgaria from Chicago O'Hare Intl Airport in 15h 55m. 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 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, January is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $484). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $826). 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.

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Alternative routes for O'Hare Intl to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
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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 octubre 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$511Average$944FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$723FlexibilityNo cancel feeOn-time75%
LOTCheapest$584Average$994FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$589Average$1,033FlexibilityNo cancel feeOn-time76%
SWISSCheapest$594Average$821FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$601Average$789FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$606Average$888FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$613Average$816FlexibilityNo cancel feeOn-time70%
Air SerbiaCheapest$634Average$1,019FlexibilityNo cancel feeOn-timeN/A

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