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$280+ Cheap flights from Chicago (CHI) 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 1/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SOF
Dec 24 — Dec 311
Tue 12/24
Tue 12/31
1 adult, Economy
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Cheap flight deals from Chicago to Bulgaria

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Bulgaria (BG0). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 19, 2024.

Round-trip from

$544
(oojo)

One-way from

$280
(Kiwi.com)
From Chicago (CHI) to Bulgaria
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One-way flight from Chicago (CHI) to Bulgaria
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Find flight deals from Chicago to Bulgaria

Cheapest flights from Chicago to Bulgaria
Explore the most affordable flight options available from Chicago to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 19, 2024.

This United deal was found by Cheapflights users on 12/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/267:20 amORD - SOF
2 stops31h 05mUnited Airlines
Tue 2/46:00 amSOF - ORD
2 stops36h 54mUnited Airlines
Deal found 12/18$649
This Gotogate deal was found by Cheapflights users on 12/19. 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 12/307:20 amORD - SOF
2 stops22h 15mMultiple Airlines
Thu 1/164:00 pmSOF - ORD
1 stop32h 15mMultiple Airlines
Deal found 12/19$650
This Justfly.com deal was found by Cheapflights users on 12/19. 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.
Thu 12/269:50 amORD - SOF
2 stops19h 35mAir Canada
Tue 2/46:00 amSOF - ORD
2 stops16h 45mAir Canada
Deal found 12/19$654
This Kiwi.com deal was found by Cheapflights users on 12/18. 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 12/265:55 pmORD - SOF
2 stops20h 50mLufthansa
Sun 1/122:15 pmSOF - ORD
1 stop28h 50mLufthansa
Deal found 12/18$863
This Gurufare deal was found by Cheapflights users on 12/18. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/266:25 pmORD - SOF
1 stop32h 50mBritish Airways
Tue 1/146:05 pmSOF - ORD
1 stop30h 55mBritish Airways
Deal found 12/18$900
This FlightHub deal was found by Cheapflights users on 12/17. 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.
Tue 12/249:55 pmORD - SOF
1 stop31h 55mLOT
Sun 1/262:35 pmSOF - ORD
1 stop13h 25mLOT
Deal found 12/17$1,066
This American Airlines deal was found by Cheapflights users on 12/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/316:31 amORD - SOF
2 stops23h 39mAmerican Airlines
Tue 1/76:05 pmSOF - ORD
2 stops30h 47mAmerican Airlines
Deal found 12/17$1,068
This SWISS deal was found by Cheapflights users on 12/18. 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.
Fri 12/277:05 pmORD - SOF
1 stop30h 50mSWISS
Mon 1/133:00 pmSOF - ORD
1 stop33h 15mSWISS
Deal found 12/18$1,076
This Gurufare deal was found by Cheapflights users on 12/19. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/234:20 pmORD - SOF
1 stop17h 40mAustrian Airlines
Fri 1/178:00 amSOF - ORD
1 stop14h 05mAustrian Airlines
Deal found 12/19$1,188
This Air France deal was found by Cheapflights users on 12/18. 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.
Sat 12/219:30 amMDW - SOF
2 stops20h 25mMultiple Airlines
Sat 1/117:00 amSOF - MDW
2 stops18h 47mMultiple Airlines
Deal found 12/18$2,220
This KLM deal was found by Cheapflights users on 12/17. 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.
Tue 12/2410:08 amMDW - SOF
2 stops19h 57mKLM
Sun 1/267:00 amSOF - MDW
2 stops19h 14mKLM
Deal found 12/17$7,281

Find flights from Chicago to Bulgaria within your budget

Customize your flight search to find flights from Chicago 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 December 19, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 1/20

11:55 am-8:55 am

1 stop13h 00m

Sofia

Sun 3/2

9:45 am-10:10 am

1 stop32h 25m

$544

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 1/8

3:35 pm-8:20 pm

2 stops20h 45m

Sofia

Wed 1/22

5:45 am-6:25 pm

2 stops20h 40m

$611

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 1/20

11:35 am-1:35 pm

2 stops18h 00m

Sofia

Mon 1/27

6:05 am-7:37 pm

2 stops21h 32m

$617

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 1/20

4:22 pm-5:10 pm

2 stops16h 48m

Sofia

Mon 1/27

5:25 pm-1:55 pm

1 stop28h 30m

$625

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 12/31

6:00 pm-6:10 pm

1 stop16h 10m

Sofia

Thu 1/16

2:25 pm-1:11 pm

2 stops30h 46m

$656

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 1/15

9:55 pm-5:50 pm

1 stop11h 55m

Sofia

Tue 3/25

2:35 pm-9:00 pm

1 stop13h 25m

$660

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Sun 2/2

4:20 pm-3:15 pm

1 stop14h 55m

Varna

Sun 2/9

4:00 pm-2:05 pm

1 stop30h 05m

$663

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Wed 1/22

12:44 pm-2:05 pm

2 stops17h 21m

Sofia

Wed 1/29

7:00 am-5:47 pm

2 stops18h 47m

$664

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Sat 2/1

11:19 am-1:55 pm

2 stops18h 36m

Sofia

Sat 2/8

7:00 am-5:43 pm

2 stops18h 43m

$671

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Sun 2/2

3:55 pm-3:15 pm

2 stops15h 20m

Varna

Sun 2/9

4:00 pm-2:05 pm

1 stop30h 05m

$683

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 34 results
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Best time to book a flight from Chicago to Bulgaria

Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Chicago 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.

Travel insights for flights from Chicago to Bulgaria

Get recent, data-driven insights about flights from Chicago to Bulgaria including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Chicago to Bulgaria?

Currently, November is the cheapest month in which you can book a flight from Chicago to Bulgaria (average of $632). Flying from Chicago 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 CHI to BG?

Find hourly flight availability from Chicago 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 December 19, 2024.

When flying from Chicago 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 December 19, 2024.
Read through reviews of airlines operating flights from Chicago to Bulgaria, such as Turkish Airlines, United Airlines and Air Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

KLM
7.8
Good
1,349 reviews
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

LOT
7.6
Good
1,129 reviews
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

SWISS
7.6
Good
1,605 reviews
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Austrian Airlines
7.6
Good
788 reviews
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Air France
7.4
Good
1,505 reviews
KLM
7.8
Good
1,349 reviews

Entertainment

7.2

Food

7.3

Boarding

7.9

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 10

Flight was late do to issues with loading stuff. One of the two bathrooms in business class was not working. WiFi did not work 80% of the time. My bag came out last even though it had a priority tag

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 to Bulgaria one-way?

    To fly one-way, consider booking your trip with LOT, which is currently one of the cheapest options available, starting at $462. TAP AIR PORTUGAL flights start at $472 while deals on Austrian Airlines start at $485 one-way.

  • What are the most popular routes from Chicago to Bulgaria?

    The most popular route from Chicago to Bulgaria is Chicago O'Hare Intl - Sofia. You may also consider Chicago Midway - Sofia or Chicago O'Hare Intl - Varna.

  • Can I find deals for flights from Chicago to Bulgaria that include hotel bookings?

    Yes. In addition to deals on Chicago to Bulgaria flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Bulgaria?

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

  • Can I find deals for business class flights from Chicago to Bulgaria?

    Yes. Cheapflights offers flight deals from Chicago 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 to Bulgaria?

    Currently, November is the cheapest month in which you can book a flight from Chicago to Bulgaria (average of $632). Flying from Chicago 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Chicago to Bulgaria

Discover the top 10 airlines that operate flights from Chicago 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 December 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$499Average$949FlexibilityNo cancel feeOn-time77%
KLMCheapest$545Average$738FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$568Average$913FlexibilityNo cancel feeOn-time70%
LOTCheapest$585Average$901FlexibilityNo cancel feeOn-time81%
Austrian AirlinesCheapest$591Average$913FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$626Average$1,088FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$630Average$919FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$650Average$817FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$682Average$984FlexibilityNo cancel feeOn-time67%
SWISSCheapest$715Average$1,124FlexibilityNo cancel feeOn-time79%
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