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O'Hare Intl

$432+ Cheap flights from Bulgaria to O'Hare Intl (ORD)

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 6/8. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Bulgaria to O'Hare Intl

Keep the following information in mind while searching for Bulgaria to O'Hare Intl flight deals. Data was last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$656
(KLM)

One-way from

$432
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$903
Provider with most accurate pricing for Sofia-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sofia-Chicago (CHI) flights.
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From Bulgaria to Chicago O'Hare Intl
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One-way flight from Bulgaria to Chicago O'Hare Intl
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Highest demand for flights based on searches. 1% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Bulgaria to O'Hare Intl

Cheapest flights from Bulgaria to O'Hare Intl
Explore the most affordable flight options available from Bulgaria to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This KLM deal was found by Cheapflights users on 1/13. 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.
Sat 1/247:00 am
SOF
-
ORD
2 stops20h 21m
KLM
Fri 1/302:25 pm
ORD
-
SOF
2 stops15h 40m
KLM
Deal found 1/13$656
This KLM deal was found by Cheapflights users on 1/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 am
SOF
-
ORD
2 stops19h 45m
KLM
Wed 4/112:15 pm
ORD
-
SOF
2 stops17h 45m
KLM
Deal found 1/14$657
This KLM deal was found by Cheapflights users on 1/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/67:00 am
SOF
-
ORD
2 stops19h 19m
KLM
Thu 2/192:05 pm
ORD
-
SOF
2 stops16h 00m
KLM
Deal found 1/14$658
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/56:35 pm
SOF
-
ORD
1 stop33h 25m
LOT
Wed 4/19:50 pm
ORD
-
SOF
1 stop20h 05m
LOT
Deal found 1/14$659
This KLM deal was found by Cheapflights users on 1/14. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:00 am
SOF
-
ORD
2 stops18h 31m
Multiple Airlines
Thu 5/288:15 pm
ORD
-
SOF
1 stop33h 45m
Multiple Airlines
Deal found 1/14$661
This oojo deal was found by Cheapflights users on 1/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/132:35 pm
SOF
-
ORD
1 stop13h 25m
LOT
Thu 3/1910:55 pm
ORD
-
SOF
1 stop11h 55m
LOT
Deal found 1/12$670
This LOT deal was found by Cheapflights users on 1/12. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/72:35 pm
SOF
-
ORD
1 stop13h 25m
LOT
Thu 2/129:55 pm
ORD
-
SOF
1 stop31h 55m
LOT
Deal found 1/12$673
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:25 am
SOF
-
ORD
1 stop22h 25m
LOT
Wed 9/95:10 pm
ORD
-
SOF
2 stops24h 45m
LOT
Deal found 1/14$676
This FlightHub deal was found by Cheapflights users on 1/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:40 pm
SOF
-
ORD
2 stops56h 30m
LOT
Sat 8/299:50 pm
ORD
-
SOF
1 stop32h 05m
LOT
Deal found 1/12$678
This British Airways deal was found by Cheapflights users on 1/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:25 pm
SOF
-
ORD
2 stops31h 35m
British Airways
Sun 3/295:54 pm
ORD
-
SOF
2 stops17h 26m
British Airways
Deal found 1/14$683
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/152:20 pm
SOF
-
ORD
1 stop31h 30m
British Airways
Sat 6/62:53 pm
ORD
-
SOF
2 stops21h 17m
British Airways
Deal found 1/13$686
This deal was found by Cheapflights users on 1/14. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/189:35 am
SOF
-
ORD
1 stop16h 40m
Turkish Airlines
Sun 7/511:25 am
ORD
-
SOF
1 stop13h 20m
Turkish Airlines
Deal found 1/14$706

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria to O'Hare Intl 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 January 14, 2026.
Use the filters below to find and compare flights from Bulgaria to Chicago O'Hare Intl Airport that are best for you.

Fly from

Bulgaria

Fly to

O'Hare Intl

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/5

7:00 am-6:45 pm

2 stops19h 45m

Chicago O'Hare Intl

Wed 4/1

12:15 pm-2:00 pm

2 stops17h 45m

$657

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 2/6

7:00 am-6:19 pm

2 stops19h 19m

Chicago O'Hare Intl

Thu 2/19

2:05 pm-2:05 pm

2 stops16h 00m

$658

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/18

7:00 am-6:31 pm

2 stops18h 31m

Chicago O'Hare Intl

Thu 5/28

8:15 pm-2:00 pm

1 stop33h 45m

$661

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 3/13

2:35 pm-9:00 pm

1 stop13h 25m

Chicago O'Hare Intl

Thu 3/19

10:55 pm-5:50 pm

1 stop11h 55m

$670

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 4/29

2:40 pm-3:10 pm

2 stops56h 30m

Chicago O'Hare Intl

Sat 8/29

9:50 pm-1:55 pm

1 stop32h 05m

$678

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 3/22

2:30 pm-6:00 pm

2 stops34h 30m

Chicago O'Hare Intl

Fri 5/29

8:57 pm-8:10 pm

2 stops39h 13m

$683

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 3/23

5:25 pm-4:13 pm

2 stops53h 48m

Chicago O'Hare Intl

Sun 3/29

7:05 pm-7:20 pm

1 stop16h 15m

$683

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 3/13

7:00 am-3:20 pm

1 stop15h 20m

Chicago O'Hare Intl

Thu 3/19

2:38 pm-1:55 pm

2 stops16h 17m

$717

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/18

9:00 pm-3:55 pm

2 stops25h 55m

Chicago O'Hare Intl

Wed 4/15

7:00 pm-1:25 pm

2 stops34h 25m

$722

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 3/26

4:00 pm-4:00 pm

1 stop31h 00m

Chicago O'Hare Intl

Sat 3/28

5:30 pm-2:35 pm

1 stop14h 05m

$725

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 22 results
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Best time to book a flight from Bulgaria to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Bulgaria 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 Bulgaria to Chicago O'Hare Intl Airport

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

Currently, February is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $522). Flying from Bulgaria to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $670). 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 O'Hare Intl

Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated January 14, 2026.
Read reviews from past customers who have flown KLM, LOT, and United Airlines from Bulgaria to Chicago O'Hare Intl Airport. 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.
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,439 reviews
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
LOT
7.5
Good
1,171 reviews
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,159 reviews
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Turkish Airlines
7.3
Good
4,169 reviews
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,714 reviews
KLM
7.7
Good
1,439 reviews

Overall

7.7

Crew

8.4

Entertainment

7.1

Boarding

7.8

Comfort

7.6

Food

7.2

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Bulgaria to O'Hare Intl. 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 Bulgaria to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Bulgaria to Chicago O'Hare Intl Airport in 13h 25m. Fly via KLM, LOT, or Austrian Airlines to get the fastest option. The distance from Bulgaria to Chicago O'Hare Intl Airport is about 5194 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for Air Serbia. According to our data, you can fly for as low as $388. Users have also found prices from $558 and $636 on Turkish Airlines and Lufthansa, respectively.

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

    While some choose either Varna - Chicago O'Hare Intl or Bourgas - Chicago O'Hare Intl, Sofia - Chicago O'Hare Intl is the most popular route from Bulgaria to Chicago O'Hare Intl Airport.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bulgaria to O'Hare Intl 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 Bulgaria to Chicago O'Hare Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $522). Flying from Bulgaria to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $670). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Elgin
Naperville
Hoffman Estates
Beloit
Delavan
Oak Brook
Downers Grove
Des Plaines
Elk Grove Village
Skokie
Libertyville
Lake Geneva
Bridgeview
Kenosha
Warrenville
Waukegan
Aurora

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Bulgaria to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Madrid to Midway flights
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Heathrow to Midway flights
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Beauvais-Tille to O'Hare Intl flights
London City to O'Hare Intl flights
Barcelona-El Prat to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Malpensa to O'Hare Intl flights
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Dublin to O'Hare Intl flights
Duesseldorf Intl to O'Hare Intl flights
Amsterdam to Midway flights
Munich to Midway flights
Leonardo da Vinci/Fiumicino to Midway flights
Bergamo to O'Hare Intl flights
Athens to O'Hare Intl flights
Luton to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Bruxelles-National to Midway flights
Copenhagen to O'Hare Intl flights
Ciampino to O'Hare Intl flights
Bari to O'Hare Intl flights
Duesseldorf Intl to Midway flights
Oslo Gardermoen to O'Hare Intl flights
Manchester to O'Hare Intl flights
Berlin to O'Hare Intl flights
Belgrade to O'Hare Intl flights
Vicenza to O'Hare Intl flights

Top 6 airlines flying from Bulgaria to O'Hare Intl

Discover the top 6 airlines that operate flights from Bulgaria to O'Hare Intl. 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
LOTCheapest$532Average$676FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$601Average$789FlexibilityNo cancel feeOn-time77%
KLMCheapest$607Average$742FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$642Average$773FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$643Average$766FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$654Average$788FlexibilityNo cancel feeOn-time78%

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