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$337+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
nov 15 — nov 221
sáb 11/15
sáb 11/22
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 outubro 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$648
(Trip.com)

One-way from

$337
(Kiwi.com)

Popular in

May

Cheapest in

February

Average price

$793
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. 2% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in October 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 outubro 16, 2025.

This Trip.com deal was found by Cheapflights users on 10/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 12/226:35 pmSOF - ORD
1 stop33h 25mLOT
ter 4/149:40 pmORD - SOF
1 stop12h 15mLOT
Deal found 10/14$648
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 11/114:00 pmSOF - ORD
1 stop34h 25mTurkish Airlines
ter 11/1811:50 amORD - SOF
1 stop25h 00mTurkish Airlines
Deal found 10/15$650
This lol.travel deal was found by Cheapflights users on 10/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 11/24:00 pmSOF - ORD
1 stop26h 05mTurkish Airlines
dom 11/1611:50 amORD - SOF
1 stop12h 55mTurkish Airlines
Deal found 10/14$653
This oojo deal was found by Cheapflights users on 10/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb 12/132:35 pmSOF - ORD
1 stop13h 25mLOT
sáb 1/109:55 pmORD - SOF
1 stop11h 55mLOT
Deal found 10/15$657
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/296:35 pmSOF - ORD
1 stop33h 25mLOT
sex 11/79:55 pmORD - SOF
1 stop31h 55mLOT
Deal found 10/15$660
This Kiwi.com deal was found by Cheapflights users on 10/14. 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.
qua 10/296:35 pmSOF - ORD
1 stop33h 25mLOT
sáb 11/89:55 pmORD - SOF
1 stop11h 55mLOT
Deal found 10/14$662
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 11/119:35 amSOF - ORD
1 stop16h 50mTurkish Airlines
qui 11/1311:50 amORD - SOF
1 stop25h 00mTurkish Airlines
Deal found 10/15$666
This LOT deal was found by Cheapflights users on 10/15. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/296:35 pmSOF - ORD
1 stop33h 25mLOT
qua 11/59:55 pmORD - SOF
1 stop31h 55mLOT
Deal found 10/15$667
This LOT deal was found by Cheapflights users on 10/14. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 11/212:35 pmSOF - ORD
1 stop13h 25mLOT
sex 2/279:55 pmORD - SOF
1 stop31h 55mLOT
Deal found 10/14$669
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 11/69:35 amSOF - ORD
1 stop16h 50mTurkish Airlines
sáb 11/811:50 amORD - SOF
1 stop25h 00mTurkish Airlines
Deal found 10/15$670
This FlightHub deal was found by Cheapflights users on 10/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/296:35 pmSOF - ORD
1 stop33h 25mLOT
dom 11/99:55 pmORD - SOF
2 stops35h 55mLOT
Deal found 10/15$671
This lol.travel deal was found by Cheapflights users on 10/15. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
seg 11/39:25 pmVAR - ORD
1 stop20h 40mTurkish Airlines
dom 11/98:20 pmORD - VAR
1 stop28h 50mTurkish Airlines
Deal found 10/15$695

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 outubro 16, 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

sáb 12/13

2:35 pm-8:00 pm

1 stop13h 25m

Chicago O'Hare Intl

sáb 1/10

9:55 pm-5:50 pm

1 stop11h 55m

$657

VarnaChicago

VAR - ORD

VARORD

Varna

seg 11/3

9:25 pm-10:05 am

1 stop20h 40m

Chicago O'Hare Intl

dom 11/9

8:20 pm-9:10 am

1 stop28h 50m

$695

SofiaChicago

SOF - ORD

SOFORD

Sofia

sáb 11/1

7:00 am-3:20 pm

1 stop15h 20m

Chicago O'Hare Intl

sex 11/7

5:20 pm-1:55 pm

1 stop12h 35m

$697

SofiaChicago

SOF - ORD

SOFORD

Sofia

qua 10/29

7:00 am-3:20 pm

1 stop15h 20m

Chicago O'Hare Intl

dom 11/9

5:20 pm-1:55 pm

1 stop12h 35m

$697

SofiaChicago

SOF - ORD

SOFORD

Sofia

sáb 12/13

6:25 am-6:28 pm

2 stops20h 03m

Chicago O'Hare Intl

sáb 1/10

4:20 pm-11:50 am

1 stop11h 30m

$698

SofiaChicago

SOF - ORD

SOFORD

Sofia

sáb 11/1

9:40 pm-11:05 am

1 stop20h 25m

Chicago O'Hare Intl

seg 11/10

11:50 am-3:10 pm

1 stop19h 20m

$701

SofiaChicago

SOF - ORD

SOFORD

Sofia

qua 12/17

7:00 am-2:20 pm

1 stop15h 20m

Chicago O'Hare Intl

sáb 1/17

12:15 pm-1:55 pm

2 stops17h 40m

$702

SofiaChicago

SOF - ORD

SOFORD

Sofia

qui 2/5

4:00 pm-3:00 pm

1 stop31h 00m

Chicago O'Hare Intl

qua 4/1

4:30 pm-3:35 pm

1 stop15h 05m

$707

SofiaChicago

SOF - ORD

SOFORD

Sofia

qua 2/11

6:10 am-2:55 pm

2 stops16h 45m

Chicago O'Hare Intl

sex 5/15

2:20 pm-10:05 am

1 stop11h 45m

$712

SofiaChicago

SOF - ORD

SOFORD

Sofia

ter 10/28

6:00 am-4:20 pm

1 stop17h 20m

Chicago O'Hare Intl

seg 11/10

11:02 am-1:15 pm

2 stops18h 13m

$719

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/14

Showing 1-10 of 33 results
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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, February is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $524). Flying from Bulgaria to Chicago in August is currently the most expensive (average of $672). 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 outubro 16, 2025.

When flying from Bulgaria to Chicago, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 23% versus a flight in the morning.

What is the cheapest day to fly from Bulgaria to Chicago?

Use this chart to determine the cheapest time to fly round-trip from Bulgaria to Chicago. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Bulgaria to Chicago flight should consider departing on Wednesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 outubro 16, 2025.
Peruse reviews from past customers who have flown with KLM, LOT, and United Airlines from Bulgaria to Chicago 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
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,402 reviews
KLM
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
LOT
7.6
Good
1,133 reviews
KLM
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
United Airlines
7.4
Good
8,981 reviews
KLM
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Turkish Airlines
7.3
Good
4,009 reviews
KLM
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Lufthansa
6.8
Okay
7,491 reviews
KLM
7.7
Good
1,402 reviews

Comfort

7.6

Crew

8.4

Overall

7.7

Food

7.2

Boarding

7.8

Entertainment

7.1

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

  • How long is the flight from Bulgaria to Chicago?

    Airlines like LOT, Turkish Airlines, and KLM fly from Bulgaria to Chicago in about 13h 25m. The time it takes to get you to your destination can typically vary by up to 7h 15m. Airlines will cover a distance of 5194 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Most travelers choose Sofia - Chicago O'Hare Intl, Sofia - Chicago Midway or Varna - 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, February is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $524). Flying from Bulgaria to Chicago in August is currently the most expensive (average of $672). 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
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Lansing
Hammond
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Benton Harbor
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Alternative routes for Bulgaria to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Bulgaria to Chicago

Discover the top 7 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 outubro 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LOTCheapest$532Average$651FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$546Average$619FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$601Average$783FlexibilityNo cancel feeOn-time77%
KLMCheapest$604Average$757FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$628Average$765FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$642Average$766FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$647Average$893FlexibilityNo cancel feeOn-time78%

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