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$288+ 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 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Jul 21 — Jul 281
Mon 7/21
Mon 7/28
1 adult, Economy
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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 July 16, 2025.

Round-trip from

$591
(Lufthansa)

One-way from

$288
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$873
From Chicago O'Hare Intl to Bulgaria
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One-way flight from Chicago O'Hare Intl to Bulgaria
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Highest demand for flights based on searches. 26% potential increase in price ($260 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 16, 2025.

This Lufthansa deal was found by Cheapflights users on 7/15. 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.
Sun 10/193:35 pmORD - SOF
1 stop12h 25mLufthansa
Thu 12/42:35 pmSOF - ORD
1 stop13h 30mLufthansa
Deal found 7/15$591
This Ovago deal was found by Cheapflights users on 7/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:50 pmORD - SOF
1 stop16h 35mTurkish Airlines
Tue 10/79:25 amSOF - ORD
1 stop16h 30mTurkish Airlines
Deal found 7/15$592
This Orbitz deal was found by Cheapflights users on 7/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/52:20 pmORD - SOF
1 stop11h 45mMultiple Airlines
Mon 9/16:40 pmSOF - ORD
1 stop26h 15mMultiple Airlines
Deal found 7/15$594
This United Airlines deal was found by Cheapflights users on 7/15. 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 10/198:40 amORD - SOF
2 stops20h 20mUnited Airlines
Tue 12/26:00 amSOF - ORD
1 stop15h 10mUnited Airlines
Deal found 7/15$595
This Lufthansa deal was found by Cheapflights users on 7/16. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/93:35 pmORD - BOJ
1 stop18h 00mLufthansa
Tue 9/169:25 amBOJ - ORD
1 stop35h 30mLufthansa
Deal found 7/16$596
This SWISS deal was found by Cheapflights users on 7/15. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:05 pmORD - SOF
1 stop31h 00mSWISS
Mon 12/13:00 pmSOF - ORD
1 stop33h 15mSWISS
Deal found 7/15$596
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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.
Fri 9/54:20 pmORD - SOF
1 stop15h 00mAustrian Airlines
Tue 9/168:00 amSOF - ORD
2 stops18h 25mAustrian Airlines
Deal found 7/15$598
This Lufthansa deal was found by Cheapflights users on 7/15. 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.
Wed 8/1310:30 pmORD - VAR
2 stops26h 30mLufthansa
Wed 9/31:35 pmVAR - ORD
2 stops31h 20mLufthansa
Deal found 7/15$642
This Justfly.com deal was found by Cheapflights users on 7/16. 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 9/23:35 pmORD - BOJ
1 stop18h 00mMultiple Airlines
Sat 9/134:00 pmBOJ - ORD
1 stop29h 20mMultiple Airlines
Deal found 7/16$666
This Austrian Airlines deal was found by Cheapflights users on 7/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/54:20 pmORD - BOJ
1 stop12h 00mAustrian Airlines
Sat 9/134:00 pmBOJ - ORD
1 stop29h 20mAustrian Airlines
Deal found 7/16$673
This FlightHub deal was found by Cheapflights users on 7/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2211:25 amORD - VAR
1 stop31h 20mTurkish Airlines
Wed 9/109:35 amVAR - ORD
1 stop20h 25mTurkish Airlines
Deal found 7/16$720
This Air France deal was found by Cheapflights users on 7/15. 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.
Sun 8/102:00 pmORD - VAR
2 stops17h 30mAir France
Mon 9/18:30 amVAR - ORD
1 stop14h 30mAir France
Deal found 7/15$751

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 July 16, 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

Fri 9/5

11:25 am-8:35 am

1 stop13h 10m

Sofia

Thu 9/11

9:15 pm-9:40 am

1 stop20h 25m

$590

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 10/19

3:35 pm-12:00 pm

1 stop12h 25m

Sofia

Thu 12/4

2:35 pm-8:05 pm

1 stop13h 30m

$591

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 8/5

2:20 pm-10:05 am

1 stop11h 45m

Sofia

Mon 9/1

6:40 pm-12:55 pm

1 stop26h 15m

$594

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 10/19

8:40 am-1:00 pm

2 stops20h 20m

Sofia

Tue 12/2

6:00 am-1:10 pm

1 stop15h 10m

$595

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Tue 9/9

3:35 pm-5:35 pm

1 stop18h 00m

Bourgas

Tue 9/16

9:25 am-12:55 pm

1 stop35h 30m

$596

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 9/5

4:20 pm-3:20 pm

1 stop15h 00m

Sofia

Tue 9/16

8:00 am-6:25 pm

2 stops18h 25m

$598

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 9/4

9:12 pm-6:40 pm

2 stops37h 28m

Sofia

Fri 9/12

6:15 am-8:11 pm

2 stops21h 56m

$603

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 8/12

2:20 pm-12:00 pm

2 stops13h 40m

Sofia

Tue 8/26

1:15 pm-12:10 pm

1 stop30h 55m

$604

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Wed 8/13

10:30 pm-9:00 am

2 stops26h 30m

Varna

Tue 9/2

1:35 pm-12:55 pm

2 stops31h 20m

$642

ChicagoBurgas

ORD - BOJ

ORDBOJ

Chicago O'Hare Intl

Tue 9/2

3:35 pm-5:35 pm

1 stop18h 00m

Bourgas

Sat 9/13

4:00 pm-1:20 pm

1 stop29h 20m

$666

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Showing 1-10 of 26 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $632). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $1,187). 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 July 16, 2025.

When flying from Chicago O'Hare Intl Airport to Bulgaria, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 July 16, 2025.
Read reviews from past customers who have flown KLM, Austrian Airlines, and Air France 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.
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
KLM
7.8
Good
1,372 reviews
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Austrian Airlines
7.6
Good
814 reviews
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
Air France
7.5
Good
1,466 reviews
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
SWISS
7.5
Good
1,658 reviews
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was great.
United Airlines
7.4
Good
8,863 reviews
KLM
7.8
Good
1,372 reviews

Overall

7.8

Comfort

7.7

Food

7.3

Crew

8.4

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2025

AMS - BOS

A two and half hour delay caused havoc with all connections. Otherwise on board service was 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.

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

    $333 is the cheapest one-way deal found within the past few days, from ITA Airways. You may also be able to find cheap deals on SWISS and Lufthansa, with prices starting from $356 and $362, respectively.

  • 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 - Bourgas and Chicago O'Hare Intl - Varna.

  • 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, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Bulgaria (average of $632). Flying from Chicago O'Hare Intl Airport to Bulgaria in June is currently the most expensive (average of $1,187). 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

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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 July 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$488Average$934FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$498Average$608FlexibilityNo cancel feeOn-time77%
KLMCheapest$533Average$739FlexibilityNo cancel feeOn-time75%
LOTCheapest$569Average$875FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$592Average$1,087FlexibilityNo cancel feeOn-time76%
SWISSCheapest$596Average$869FlexibilityNo cancel feeOn-time79%
Austrian AirlinesCheapest$603Average$884FlexibilityNo cancel feeOn-time78%
British AirwaysCheapest$613Average$778FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$615Average$797FlexibilityNo cancel feeOn-time69%
Air SerbiaCheapest$652Average$1,020FlexibilityNo cancel feeOn-timeN/A

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