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$405+ 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
apr 5 — apr 121
sab 4/5
sab 4/12
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 marzo 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$645
(United Airlines)

One-way from

$405
(Mytrip)

Popular in

January

Cheapest in

November

Average price

$666
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 ($25 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 March 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 marzo 31, 2025.

This United Airlines deal was found by Cheapflights users on 3/31. 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.
mar 4/296:20 amSOF - ORD
2 stops16h 35mUnited Airlines
mer 5/283:40 pmORD - SOF
2 stops23h 20mUnited Airlines
Deal found 3/31$645
This KLM deal was found by Cheapflights users on 3/31. 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.
sab 4/197:00 amSOF - ORD
2 stops21h 10mKLM
dom 4/201:25 pmORD - SOF
2 stops16h 35mKLM
Deal found 3/31$652
This Expedia deal was found by Cheapflights users on 3/31. 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.
gio 5/156:15 amSOF - ORD
2 stops21h 57mAir Canada
mer 5/218:25 pmORD - SOF
2 stops30h 50mAir Canada
Deal found 3/31$661
This oojo deal was found by Cheapflights users on 3/31. 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.
ven 6/276:40 pmSOF - ORD
2 stops28h 30mLOT
ven 9/194:55 pmORD - SOF
2 stops36h 55mLOT
Deal found 3/31$673
This FlightHub deal was found by Cheapflights users on 3/31. 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.
ven 4/119:15 pmSOF - ORD
1 stop20h 25mTurkish Airlines
sab 4/197:50 pmORD - SOF
1 stop16h 35mTurkish Airlines
Deal found 3/31$675
This Gotogate deal was found by Cheapflights users on 3/31. 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.
gio 4/178:00 amSOF - ORD
1 stop13h 20mMultiple Airlines
mer 4/302:05 pmORD - SOF
2 stops20h 35mMultiple Airlines
Deal found 3/31$677
This Lufthansa deal was found by Cheapflights users on 3/31. 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.
gio 4/176:00 amSOF - ORD
2 stops14h 55mLufthansa
mer 4/305:50 pmORD - SOF
1 stop16h 50mLufthansa
Deal found 3/31$687
This Austrian Airlines deal was found by Cheapflights users on 3/31. 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.
mar 4/298:00 amSOF - ORD
1 stop13h 20mAustrian Airlines
gio 5/159:20 pmORD - SOF
2 stops30h 20mAustrian Airlines
Deal found 3/31$694
This Air France deal was found by Cheapflights users on 3/31. 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.
gio 6/197:00 amSOF - MDW
2 stops18h 45mMultiple Airlines
lun 6/301:09 pmMDW - SOF
2 stops16h 51mMultiple Airlines
Deal found 3/31$710
This KLM deal was found by Cheapflights users on 3/31. 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.
dom 4/137:00 amSOF - MDW
2 stops17h 12mKLM
sab 4/263:02 pmMDW - SOF
2 stops14h 58mKLM
Deal found 3/31$742
This Aeromexico deal was found by Cheapflights users on 3/30. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven 4/117:00 amSOF - ORD
2 stops24h 59mAir France
sab 4/1911:15 amORD - SOF
2 stops18h 45mAir France
Deal found 3/30$756
This American Airlines deal was found by Cheapflights users on 3/31. 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.
dom 4/139:10 pmSOF - ORD
1 stop22h 35mAmerican Airlines
sab 4/2610:20 pmORD - SOF
1 stop14h 00mAmerican Airlines
Deal found 3/31$778

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 marzo 31, 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

mar 4/29

6:20 am-2:55 pm

2 stops16h 35m

Chicago O'Hare Intl

mer 5/28

9:40 pm-11:00 pm

1 stop17h 20m

$645

SofiaChicago

SOF - ORD

SOFORD

Sofia

sab 4/19

7:00 am-8:10 pm

2 stops21h 10m

Chicago O'Hare Intl

dom 4/20

1:25 pm-2:00 pm

2 stops16h 35m

$652

SofiaChicago

SOF - ORD

SOFORD

Sofia

gio 5/15

6:15 am-8:12 pm

2 stops21h 57m

Chicago O'Hare Intl

mer 5/21

8:25 pm-11:15 am

2 stops30h 50m

$661

SofiaChicago

SOF - ORD

SOFORD

Sofia

ven 6/27

6:40 pm-3:10 pm

2 stops28h 30m

Chicago O'Hare Intl

ven 9/19

4:55 pm-1:50 pm

2 stops36h 55m

$673

SofiaChicago

SOF - ORD

SOFORD

Sofia

ven 4/11

9:15 pm-9:40 am

1 stop20h 25m

Chicago O'Hare Intl

sab 4/19

7:50 pm-8:25 pm

1 stop16h 35m

$675

SofiaChicago

SOF - ORD

SOFORD

Sofia

gio 4/17

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

mer 4/30

2:05 pm-6:40 pm

2 stops20h 35m

$677

SofiaChicago

SOF - ORD

SOFORD

Sofia

gio 4/17

6:00 am-12:55 pm

2 stops14h 55m

Chicago O'Hare Intl

mer 4/30

5:50 pm-6:40 pm

1 stop16h 50m

$687

SofiaChicago

SOF - ORD

SOFORD

Sofia

mar 4/29

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

gio 5/15

9:20 pm-11:40 am

2 stops30h 20m

$694

SofiaChicago

SOF - MDW

SOFMDW

Sofia

gio 6/19

7:00 am-5:45 pm

2 stops18h 45m

Chicago Midway

lun 6/30

1:09 pm-2:00 pm

2 stops16h 51m

$710

SofiaChicago

SOF - MDW

SOFMDW

Sofia

dom 4/13

7:00 am-4:12 pm

2 stops17h 12m

Chicago Midway

sab 4/26

3:02 pm-2:00 pm

2 stops14h 58m

$742

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 24 results
1
2
3

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 $323). 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 marzo 31, 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 marzo 31, 2025.
Read through reviews of airlines operating flights from Bulgaria to Chicago, such as Emirates, KLM and LOT. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Emirates
8.0
Very good
3,192 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
KLM
7.8
Good
1,321 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
LOT
7.6
Good
1,065 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
Austrian Airlines
7.6
Good
770 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.
SWISS
7.5
Good
1,570 reviews
Emirates
8.0
Very good
3,192 reviews

Boarding

8.1

Crew

8.3

Comfort

8.0

Food

7.8

Overall

8.0

Entertainment

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jun 2024

DXB - IAH

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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?

    $435 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 LOT, with prices starting from $552 and $627, 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 $323). 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
New Buffalo
Hammond
Benton Harbor
Porter
Lansing
Valparaiso
Chesterton

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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 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 marzo 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$460Average$777FlexibilityNo cancel feeOn-time75%
LOTCheapest$490Average$638FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$546Average$864FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$560Average$672FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$576Average$858FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$594Average$771FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$601Average$799FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$603Average$723FlexibilityNo cancel feeOn-time69%
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