HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Bulgaria

$227+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Bulgaria with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 November 26, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:50 pmORD - SOF
2 stops16h 55mLufthansa
Mon 3/27:05 pmSOF - ORD
2 stops26h 05mLufthansa
Deal found 11/26$561
This Mytrip deal was found by Cheapflights users on 11/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:30 pmORD - SOF
3 stops35h 00mMultiple Airlines
Wed 12/246:00 amSOF - ORD
2 stops19h 20mMultiple Airlines
Deal found 11/24$568
This Mytrip deal was found by Cheapflights users on 11/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/289:50 pmORD - SOF
2 stops16h 55mMultiple Airlines
Sun 1/186:10 amSOF - ORD
2 stops21h 35mMultiple Airlines
Deal found 11/26$570
This Kiwi.com deal was found by Cheapflights users on 11/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:50 pmORD - SOF
1 stop16h 55mLufthansa
Tue 12/22:00 pmSOF - ORD
1 stop32h 10mLufthansa
Deal found 11/26$576
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Tue 12/29:05 pmORD - SOF
2 stops34h 10mMultiple Airlines
Tue 12/166:00 amSOF - ORD
1 stop13h 10mMultiple Airlines
Deal found 11/25$577
This Kiwi.com deal was found by Cheapflights users on 11/25. 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.
Tue 12/26:25 pmORD - SOF
1 stop20h 20mLufthansa
Tue 12/166:00 amSOF - ORD
1 stop13h 10mLufthansa
Deal found 11/25$578
This Gotogate deal was found by Cheapflights users on 11/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:50 pmORD - SOF
2 stops21h 30mMultiple Airlines
Wed 1/146:05 amSOF - ORD
1 stop20h 20mMultiple Airlines
Deal found 11/24$593
This Cheapflightsfares deal was found by Cheapflights users on 11/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/279:50 pmORD - SOF
1 stop16h 55mLufthansa
Wed 12/36:10 amSOF - ORD
1 stop21h 55mLufthansa
Deal found 11/26$594
This Cheapflightsfares deal was found by Cheapflights users on 11/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/266:00 pmORD - SOF
1 stop11h 15mLufthansa
Fri 12/56:05 amSOF - ORD
1 stop16h 05mLufthansa
Deal found 11/23$596
This FlightHub deal was found by Cheapflights users on 11/24. 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.
Sun 12/79:50 pmORD - SOF
1 stop12h 30mLufthansa
Mon 3/166:10 amSOF - ORD
1 stop17h 10mLufthansa
Deal found 11/24$603
This KAYAK deal was found by Cheapflights users on 11/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:45 pmORD - VAR
2 stops39h 30mAustrian Airlines
Sun 1/114:00 pmVAR - ORD
2 stops28h 45mAustrian Airlines
Deal found 11/25$658
This KAYAK deal was found by Cheapflights users on 11/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:20 pmORD - VAR
1 stop14h 55mAustrian Airlines
Sun 1/114:00 pmVAR - ORD
2 stops28h 45mAustrian Airlines
Deal found 11/25$661

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 November 26, 2025.

Most accurate provider

Gotogate
3 stars

Most trusted provider

Gotogate
3 stars

Round-trip from

$555
(Kiwi.com)

One-way from

$227
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$641
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. 25% potential increase in price ($256 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 November 2025
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 November 26, 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

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Wed 1/28

9:05 pm-3:15 pm

2 stops34h 10m

Varna

Sun 2/1

4:00 pm-12:45 pm

2 stops52h 45m

$557

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 1/21

6:00 pm-1:15 pm

1 stop11h 15m

Sofia

Sun 1/25

6:10 am-3:20 pm

1 stop17h 10m

$558

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/8

12:50 pm-6:40 pm

2 stops21h 50m

Sofia

Sun 4/12

1:55 pm-7:55 pm

1 stop14h 00m

$559

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 12/28

9:50 pm-10:45 pm

2 stops16h 55m

Sofia

Mon 3/2

7:05 pm-1:10 pm

2 stops26h 05m

$561

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 3/6

6:25 pm-10:45 pm

1 stop20h 20m

Sofia

Mon 3/9

3:00 pm-1:45 pm

1 stop29h 45m

$562

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Wed 1/28

6:25 pm-5:15 pm

1 stop14h 50m

Varna

Sun 2/1

4:00 pm-2:10 pm

2 stops54h 10m

$562

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 1/21

9:50 pm-6:20 pm

1 stop12h 30m

Sofia

Sun 1/25

2:25 pm-3:10 pm

2 stops32h 45m

$564

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 1/21

7:15 am-6:20 pm

2 stops27h 05m

Sofia

Sun 1/25

2:25 pm-2:55 pm

2 stops32h 30m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 3/6

6:25 pm-10:45 pm

1 stop20h 20m

Sofia

Mon 3/9

1:45 pm-1:45 pm

2 stops31h 00m

$584

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 1/13

9:50 pm-6:20 pm

1 stop12h 30m

Sofia

Fri 1/30

6:10 am-7:45 pm

2 stops21h 35m

$598

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/26

Showing 1-10 of 24 results
1
2
3

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 $481). 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 November 26, 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 November 26, 2025.
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
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Austrian Airlines
7.6
Good
874 reviews
Austrian Airlines
7.6
Good
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
LOT
7.5
Good
1,140 reviews
Austrian Airlines
7.6
Good
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
United Airlines
7.4
Good
9,050 reviews
Austrian Airlines
7.6
Good
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Turkish Airlines
7.3
Good
4,063 reviews
Austrian Airlines
7.6
Good
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.
Lufthansa
6.8
Okay
7,594 reviews
Austrian Airlines
7.6
Good
874 reviews

Crew

8.1

Entertainment

6.8

Overall

7.6

Food

6.8

Boarding

7.6

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Andrew,Sep 2025

FLR - VIE

Staff was really nice, they provided water as a beverage. Otherwise you had to purchase beverages or food. A complementary chocolate was provided at the end of the flight.

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 $558, Austrian Airlines can have you in Bulgaria from Chicago O'Hare Intl Airport in 11h 15m. 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 $481). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl to Bulgaria

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Heathrow flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Charles de Gaulle flights
O'Hare Intl to Dublin flights
O'Hare Intl to Madrid flights
O'Hare Intl to Istanbul flights
O'Hare Intl to Frankfurt flights
O'Hare Intl to Gatwick flights
O'Hare Intl to Orly flights
O'Hare Intl to London City flights
O'Hare Intl to Barcelona-El Prat flights
O'Hare Intl to Athens flights
O'Hare Intl to Frederic Chopin flights
O'Hare Intl to Amsterdam flights
O'Hare Intl to Zurich flights
O'Hare Intl to Bruxelles-National flights
Midway to Heathrow flights
O'Hare Intl to Stansted flights
Midway to Leonardo da Vinci/Fiumicino flights
O'Hare Intl to Lisbon flights
O'Hare Intl to Malpensa flights
O'Hare Intl to Krakow flights
O'Hare Intl to Munich flights
O'Hare Intl to Luton flights
O'Hare Intl to Sabiha Gokcen flights
O'Hare Intl to Copenhagen flights
Midway to Charles de Gaulle flights
O'Hare Intl to Vienna flights
O'Hare Intl to Linate flights
O'Hare Intl to Keflavik Intl flights
Midway to Dublin flights
Midway to Madrid flights
O'Hare Intl to Beauvais-Tille flights
O'Hare Intl to Edinburgh flights
O'Hare Intl to Prague flights
O'Hare Intl to Naples flights
Midway to Lisbon flights
Midway to Frankfurt flights
O'Hare Intl to Vicenza flights
O'Hare Intl to Geneva flights
Midway to Athens flights
Midway to Barcelona-El Prat flights
Midway to Frederic Chopin flights
O'Hare Intl to Florence flights
O'Hare Intl to Ciampino flights
O'Hare Intl to Sofia flights
O'Hare Intl to Oslo Gardermoen flights
Midway to Amsterdam flights
O'Hare Intl to Belgrade flights
O'Hare Intl to Berlin flights

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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$509Average$899FlexibilityNo cancel feeOn-time77%
KLMCheapest$569Average$675FlexibilityNo cancel feeOn-time75%
LOTCheapest$573Average$968FlexibilityNo cancel feeOn-time81%
Air FranceCheapest$585Average$624FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$588Average$856FlexibilityNo cancel feeOn-time76%
SWISSCheapest$593Average$808FlexibilityNo cancel feeOn-time79%
United AirlinesCheapest$599Average$790FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$606Average$976FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$611Average$754FlexibilityNo cancel feeOn-time70%
Air SerbiaCheapest$634Average$1,006FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.