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$401+ 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 11/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SOF
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
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 November 21, 2024.

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 November 21, 2024.

This FlightHub deal was found by Cheapflights users on 11/20. 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.
Thu 11/289:55 pmORD - SOF
1 stop11h 55mLOT
Mon 3/106:35 pmSOF - ORD
1 stop33h 25mLOT
Deal found 11/20$567
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/18:25 pmORD - SOF
3 stops35h 05mMultiple Airlines
Tue 12/108:20 pmSOF - ORD
2 stops27h 10mMultiple Airlines
Deal found 11/19$588
This Gotogate deal was found by Cheapflights users on 11/20. 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.
Tue 11/263:55 pmORD - SOF
1 stop22h 30mLufthansa
Sat 12/76:00 amSOF - ORD
1 stop22h 05mLufthansa
Deal found 11/20$616
This Gotogate deal was found by Cheapflights users on 11/20. 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.
Sun 12/19:50 amORD - SOF
2 stops19h 50mAir Canada
Tue 12/106:05 amSOF - ORD
2 stops21h 27mAir Canada
Deal found 11/20$619
This Expedia deal was found by Cheapflights users on 11/19. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/95:00 pmORD - SOF
1 stop16h 10mBritish Airways
Sat 1/2512:05 pmSOF - ORD
1 stop14h 40mBritish Airways
Deal found 11/19$627
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Tue 12/316:00 pmORD - SOF
1 stop16h 10mUnited Airlines
Wed 1/156:00 amSOF - ORD
2 stops21h 55mUnited Airlines
Deal found 11/20$631
This SWISS deal was found by Cheapflights users on 11/20. 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.
Wed 11/207:05 pmORD - SOF
1 stop12h 10mSWISS
Thu 12/124:00 pmSOF - ORD
1 stop32h 15mSWISS
Deal found 11/20$638
This KLM deal was found by Cheapflights users on 11/20. 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 11/261:30 pmMDW - SOF
2 stops16h 35mKLM
Sat 12/77:00 amSOF - MDW
2 stops19h 32mKLM
Deal found 11/20$661
This oojo deal was found by Cheapflights users on 11/20. 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 12/1211:55 amORD - SOF
1 stop13h 00mTurkish Airlines
Thu 3/279:45 amSOF - ORD
1 stop16h 50mTurkish Airlines
Deal found 11/20$727
This Austrian Airlines deal was found by Cheapflights users on 11/21. 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.
Wed 12/114:20 pmORD - SOF
1 stop17h 40mAustrian Airlines
Sun 3/306:45 pmSOF - ORD
1 stop26h 35mAustrian Airlines
Deal found 11/21$863
This Aeromexico deal was found by Cheapflights users on 11/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/151:30 pmMDW - SOF
2 stops16h 25mAir France
Wed 1/157:00 amSOF - MDW
2 stops23h 20mAir France
Deal found 11/20$1,156
This Travelocity deal was found by Cheapflights users on 11/19. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/263:55 pmORD - VAR
2 stops39h 20mMultiple Airlines
Sat 11/304:00 pmVAR - ORD
2 stops52h 15mMultiple Airlines
Deal found 11/19$1,588

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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 1/7

7:45 am-1:30 pm

2 stops21h 45m

Sofia

Fri 1/17

6:20 am-10:54 am

2 stops36h 34m

$546

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 1/13

9:25 pm-10:45 pm

1 stop17h 20m

Sofia

Thu 2/6

6:10 am-7:37 pm

2 stops21h 27m

$547

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 1/11

9:55 pm-5:50 pm

1 stop11h 55m

Sofia

Wed 4/9

2:40 pm-7:40 pm

1 stop13h 00m

$548

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 1/10

9:25 pm-6:10 pm

1 stop12h 45m

Sofia

Mon 4/7

1:55 pm-7:55 pm

1 stop14h 00m

$553

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 1/14

11:55 am-8:55 am

1 stop13h 00m

Sofia

Fri 4/11

9:15 am-5:55 pm

1 stop16h 40m

$563

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Wed 2/5

12:44 pm-2:05 pm

2 stops17h 21m

Sofia

Wed 2/19

7:00 am-5:47 pm

2 stops18h 47m

$565

ChicagoSofia

MDW - SOF

MDWSOF

Chicago Midway

Mon 1/13

2:08 pm-2:05 pm

2 stops15h 57m

Sofia

Thu 2/6

7:00 am-5:47 pm

2 stops18h 47m

$571

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Wed 1/15

9:45 pm-3:15 pm

2 stops33h 30m

Varna

Sun 1/19

4:00 pm-2:05 pm

1 stop30h 05m

$574

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 1/9

10:30 am-2:05 pm

2 stops19h 35m

Sofia

Tue 4/8

7:00 am-9:43 pm

2 stops22h 43m

$577

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 1/7

4:00 pm-6:10 pm

2 stops18h 10m

Sofia

Sat 1/18

6:00 am-2:45 pm

2 stops16h 45m

$597

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 33 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 $606). Flying from Chicago to Bulgaria in June is currently the most expensive (average of $1,242). 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 November 21, 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 November 21, 2024.
Read through reviews of airlines operating flights from Chicago to Bulgaria, such as United Airlines, LOT and Lufthansa. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

LOT
7.6
Good
1,166 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Austrian Airlines
7.6
Good
805 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

SWISS
7.6
Good
1,637 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Air France
7.4
Good
1,525 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Crew

8.4

Boarding

7.9

Overall

7.8

Comfort

7.7

Food

7.3

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

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 Air Serbia, which is currently one of the cheapest options available, starting at $401. LOT flights start at $444 while deals on British Airways start at $467 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 $606). Flying from Chicago to Bulgaria in June is currently the most expensive (average of $1,242). 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 Chicago 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 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$508Average$950FlexibilityNo cancel feeOn-time77%
KLMCheapest$545Average$738FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$568Average$909FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$579Average$905FlexibilityNo cancel feeOn-time78%
LOTCheapest$585Average$893FlexibilityNo cancel feeOn-time81%
LufthansaCheapest$613Average$1,092FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$619Average$907FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$650Average$817FlexibilityNo cancel feeOn-time81%
Air CanadaCheapest$682Average$962FlexibilityNo cancel feeOn-time67%
SWISSCheapest$685Average$1,115FlexibilityNo cancel feeOn-time79%
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