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Bulgaria

$306+ 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 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$590
(oojo)

One-way from

$306
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$614
Provider with most accurate pricing for Chicago (CHI)-Sofia flight deals.
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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. 29% potential increase in price ($323 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This oojo deal was found by Cheapflights users on 3/27. 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 5/411:25 amORD - SOF
1 stop25h 00mTurkish Airlines
Tue 5/203:35 pmSOF - ORD
1 stop26h 05mTurkish Airlines
Deal found 3/27$590
This Air Serbia deal was found by Cheapflights users on 3/27. 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 Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:20 pmORD - SOF
1 stop19h 35mAir Serbia
Sat 10/255:00 amSOF - ORD
1 stop24h 00mAir Serbia
Deal found 3/27$647
This oojo deal was found by Cheapflights users on 3/27. 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 3/319:40 pmORD - SOF
1 stop20h 20mLOT
Wed 4/95:20 amSOF - ORD
1 stop22h 20mLOT
Deal found 3/27$661
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Mon 3/311:55 pmORD - SOF
2 stops15h 05mMultiple Airlines
Wed 4/96:15 amSOF - ORD
1 stop14h 40mMultiple Airlines
Deal found 3/27$667
This FlightHub deal was found by Cheapflights users on 3/27. 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 3/2810:25 pmORD - SOF
1 stop12h 45mLufthansa
Fri 4/46:00 amSOF - ORD
1 stop20h 15mLufthansa
Deal found 3/27$675
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Fri 3/285:01 pmORD - SOF
2 stops18h 09mAir Canada
Fri 4/46:15 amSOF - ORD
2 stops21h 15mAir Canada
Deal found 3/27$678
This oojo deal was found by Cheapflights users on 3/27. 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 4/276:30 pmORD - SOF
2 stops16h 40mBritish Airways
Sun 5/119:10 pmSOF - ORD
2 stops25h 05mBritish Airways
Deal found 3/27$781
This Gotogate deal was found by Cheapflights users on 3/27. 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.
Thu 4/174:20 pmORD - SOF
1 stop15h 00mAustrian Airlines
Sun 4/276:55 pmSOF - ORD
1 stop26h 25mAustrian Airlines
Deal found 3/27$783
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Mon 4/289:40 pmORD - SOF
1 stop13h 00mUnited Airlines
Thu 5/86:15 amSOF - ORD
2 stops21h 57mUnited Airlines
Deal found 3/27$785
This oojo deal was found by Cheapflights users on 3/27. 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 8/227:50 pmORD - VAR
1 stop28h 55mTurkish Airlines
Wed 9/109:35 amVAR - ORD
1 stop20h 25mTurkish Airlines
Deal found 3/27$790
This SWISS deal was found by Cheapflights users on 3/27. 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 4/286:35 pmORD - SOF
1 stop31h 30mSWISS
Tue 5/131:15 pmSOF - ORD
1 stop34h 40mSWISS
Deal found 3/27$790
This Lufthansa deal was found by Cheapflights users on 3/27. 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 5/710:30 pmORD - VAR
2 stops32h 45mLufthansa
Fri 11/74:00 pmVAR - ORD
2 stops34h 25mLufthansa
Deal found 3/27$792

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 March 28, 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

Sun 5/4

11:25 am-8:25 pm

1 stop25h 00m

Sofia

Tue 5/20

3:35 pm-9:40 am

1 stop26h 05m

$590

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 5/3

11:20 pm-2:55 am

1 stop19h 35m

Sofia

Sat 10/25

5:00 am-9:00 pm

1 stop24h 00m

$647

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 5/11

7:15 pm-11:00 pm

3 stops19h 45m

Sofia

Sun 5/18

3:40 pm-4:10 pm

2 stops32h 30m

$700

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 5/16

9:40 pm-5:55 pm

1 stop12h 15m

Sofia

Fri 5/30

2:35 pm-7:40 pm

1 stop13h 05m

$744

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 5/5

4:00 pm-6:40 pm

2 stops18h 40m

Sofia

Tue 5/20

6:20 am-8:12 pm

2 stops21h 52m

$764

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 4/27

6:30 pm-7:10 pm

2 stops16h 40m

Sofia

Sun 5/11

9:10 pm-2:15 pm

2 stops25h 05m

$781

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 4/17

4:20 pm-3:20 pm

1 stop15h 00m

Sofia

Sun 4/27

6:55 pm-1:20 pm

1 stop26h 25m

$783

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 4/28

9:40 pm-6:40 pm

1 stop13h 00m

Sofia

Thu 5/8

6:15 am-8:12 pm

2 stops21h 57m

$785

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 7/14

10:30 pm-10:50 pm

1 stop16h 20m

Sofia

Tue 9/16

6:00 am-12:30 pm

1 stop14h 30m

$789

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 4/28

6:35 pm-10:05 am

1 stop31h 30m

Sofia

Thu 5/8

10:50 am-3:55 pm

1 stop13h 05m

$790

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 35 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 $1,243). 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 March 28, 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.

Rainfall in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bulgaria ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Bulgaria when rainfall is around 1.2 in.

Temperature in Bulgaria by month

Plan your trip to Bulgaria by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bulgaria, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 March 28, 2025.
Peruse reviews from past customers who have flown with KLM, LOT and Austrian Airlines from Chicago to Bulgaria to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,321 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
LOT
7.6
Good
1,063 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Austrian Airlines
7.5
Good
769 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
SWISS
7.5
Good
1,570 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Air France
7.4
Good
1,424 reviews
KLM
7.8
Good
1,321 reviews

Overall

7.8

Comfort

7.7

Entertainment

7.1

Food

7.3

Crew

8.4

Boarding

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

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?

    $388 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 JetBlue and British Airways, with prices starting from $462 and $560, 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 - 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, 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 $1,243). 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$501Average$981FlexibilityNo cancel feeOn-time77%
LOTCheapest$577Average$870FlexibilityNo cancel feeOn-time81%
KLMCheapest$578Average$736FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$593Average$914FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$616Average$882FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$617Average$1,078FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$627Average$931FlexibilityNo cancel feeOn-time70%
Air SerbiaCheapest$659Average$1,065FlexibilityNo cancel feeOn-timeN/A
ITA AirwaysCheapest$660Average$818FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$682Average$962FlexibilityNo cancel feeOn-time67%
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