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$326+ Cheap flights from Bulgaria to Chicago (CHI)

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Bulgaria to Chicago

Keep the following information in mind while searching for Bulgaria to Chicago flight deals. Data was last updated May 1, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$630
(Air France)

One-way from

$326
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$650
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 (CHI)
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One-way flight from Bulgaria to Chicago (CHI)
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Highest demand for flights based on searches. 3% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Bulgaria to Chicago

Cheapest flights from Bulgaria to Chicago
Explore the most affordable flight options available from Bulgaria to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Air France deal was found by Cheapflights users on 4/30. 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.
Thu 5/157:00 amSOF - ORD
2 stops18h 26mMultiple Airlines
Thu 5/291:45 pmORD - SOF
2 stops16h 15mMultiple Airlines
Deal found 4/30$630
This Air France deal was found by Cheapflights users on 4/30. 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.
Mon 9/157:00 amSOF - ORD
2 stops18h 36mAir France
Tue 9/301:35 pmORD - SOF
2 stops16h 25mAir France
Deal found 4/30$636
This oojo deal was found by Cheapflights users on 4/30. 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 6/195:20 amSOF - ORD
1 stop22h 20mLOT
Mon 6/305:10 pmORD - SOF
1 stop12h 40mLOT
Deal found 4/30$645
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 5/146:15 amSOF - ORD
2 stops20h 07mUnited Airlines
Tue 5/209:40 pmORD - SOF
1 stop17h 20mUnited Airlines
Deal found 4/30$674
This British Airways deal was found by Cheapflights users on 4/30. 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 5/198:00 pmSOF - ORD
1 stop25h 50mBritish Airways
Tue 9/166:25 pmORD - SOF
2 stops18h 15mBritish Airways
Deal found 4/30$687
This Air Canada deal was found by Cheapflights users on 4/30. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/156:15 amSOF - ORD
2 stops21h 57mAir Canada
Thu 5/299:35 amORD - SOF
2 stops17h 40mAir Canada
Deal found 4/30$694
This Austrian Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 5/196:55 pmSOF - ORD
2 stops31h 31mAustrian Airlines
Tue 9/1612:50 pmORD - SOF
2 stops18h 30mAustrian Airlines
Deal found 4/30$709
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Sun 7/279:15 pmSOF - ORD
1 stop20h 25mTurkish Airlines
Sat 8/911:45 pmORD - SOF
1 stop31h 00mTurkish Airlines
Deal found 4/30$722
This Travelocity deal was found by Cheapflights users on 4/30. 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.
Wed 5/710:50 amSOF - ORD
1 stop13h 05mSWISS
Wed 5/147:05 pmORD - SOF
2 stops32h 55mSWISS
Deal found 4/30$778
This oojo deal was found by Cheapflights users on 4/30. 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 5/812:45 pmSOF - ORD
1 stop13h 30mLufthansa
Wed 5/146:15 pmORD - SOF
1 stop33h 00mLufthansa
Deal found 4/30$779
This KLM deal was found by Cheapflights users on 5/1. 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 6/197:00 amSOF - MDW
2 stops19h 02mKLM
Mon 6/301:09 pmMDW - SOF
2 stops16h 51mKLM
Deal found 5/1$870
This Gotogate deal was found by Cheapflights users on 4/30. 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 8/185:00 amSOF - ORD
1 stop19h 40mAir Serbia
Wed 8/204:30 pmORD - SOF
1 stop15h 05mAir Serbia
Deal found 4/30$1,049

Cheapflights Fare Finder

Customize your flight search to find flights from Bulgaria to Chicago 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 May 1, 2025.
Use the filters below to find and compare flights from Bulgaria to Chicago that are best for you.

Fly from

Bulgaria

Fly to

Chicago

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 5/15

7:00 am-5:26 pm

2 stops18h 26m

Chicago O'Hare Intl

Thu 5/29

1:45 pm-2:00 pm

2 stops16h 15m

$630

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/15

7:00 am-5:36 pm

2 stops18h 36m

Chicago O'Hare Intl

Tue 9/30

1:35 pm-2:00 pm

2 stops16h 25m

$636

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/19

5:20 am-7:40 pm

1 stop22h 20m

Chicago O'Hare Intl

Mon 6/30

5:10 pm-1:50 pm

1 stop12h 40m

$645

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 5/14

6:15 am-6:22 pm

2 stops20h 07m

Chicago O'Hare Intl

Tue 5/20

9:40 pm-11:00 pm

1 stop17h 20m

$674

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 5/19

8:00 pm-1:50 pm

1 stop25h 50m

Chicago O'Hare Intl

Tue 9/16

6:25 pm-8:40 pm

2 stops18h 15m

$687

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 5/15

6:15 am-8:12 pm

2 stops21h 57m

Chicago O'Hare Intl

Thu 5/29

9:35 am-11:15 am

2 stops17h 40m

$694

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 5/19

6:55 pm-6:26 pm

2 stops31h 31m

Chicago O'Hare Intl

Tue 9/16

12:50 pm-3:20 pm

2 stops18h 30m

$709

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 7/27

9:15 pm-9:40 am

1 stop20h 25m

Chicago O'Hare Intl

Sat 8/9

11:45 pm-2:45 pm

1 stop31h 00m

$722

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 7/27

6:00 am-2:55 pm

2 stops16h 55m

Chicago O'Hare Intl

Sat 8/9

10:30 pm-11:00 pm

2 stops16h 30m

$789

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Thu 6/19

7:00 am-6:02 pm

2 stops19h 02m

Chicago Midway

Mon 6/30

1:09 pm-2:00 pm

2 stops16h 51m

$870

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 24 results
1
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Best time to book a flight from Bulgaria to Chicago

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

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

Currently, August is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $245). Flying from Bulgaria to Chicago in March is currently the most expensive (average of $321). 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 BG to CHI?

Find hourly flight availability from Bulgaria to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 1, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bulgaria to Chicago as you normally would.

Rainfall in Chicago by month

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

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

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

If weather is an important factor for your trip to Chicago, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated May 1, 2025.
Read through reviews of airlines operating flights from Bulgaria to Chicago, such as KLM, LOT and Austrian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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
1,334 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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
1,069 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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
7.6
Good
781 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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.
Qatar Airways
7.4
Good
3,564 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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
1,448 reviews
KLM
7.8
Good
1,334 reviews

Boarding

7.8

Crew

8.4

Comfort

7.7

Entertainment

7.1

Food

7.2

Overall

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 Bulgaria to Chicago. 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 Bulgaria to Chicago one-way?

    $453 is the cheapest one-way deal found within the past few days, from Air Serbia. You may also be able to find cheap deals on Aer Lingus and Qatar Airways, with prices starting from $581 and $597, respectively.

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

    Most travelers choose Sofia - Chicago O'Hare Intl, Sofia - Chicago Midway or Bourgas - Chicago O'Hare Intl when deciding on the best route from Bulgaria to Chicago.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bulgaria to Chicago 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?

    Currently, August is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $245). Flying from Bulgaria to Chicago in March is currently the most expensive (average of $321). 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 Bulgaria?

Book flights to Bulgaria if you plan to visit one of these locations
Merrillville
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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Alternative routes for Bulgaria to Chicago

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Top 8 airlines flying from Bulgaria to Chicago

Discover the top 8 airlines that operate flights from Bulgaria to Chicago. 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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$485Average$759FlexibilityNo cancel feeOn-time75%
LOTCheapest$532Average$627FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$546Average$864FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$560Average$672FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$576Average$861FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$601Average$774FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$603Average$718FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$614Average$774FlexibilityNo cancel feeOn-time76%

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