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$405+ Cheap flights from Bulgaria to Illinois

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
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Cheap flight deals from Bulgaria to Illinois

Keep the following information in mind while searching for Bulgaria to Illinois flight deals. Data was last updated February 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$583
(oojo)

One-way from

$405
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$673
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 Illinois
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One-way flight from Bulgaria to Illinois
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Highest demand for flights based on searches. 3% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Bulgaria to Illinois

Cheapest flights from Bulgaria to Illinois
Explore the most affordable flight options available from Bulgaria to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This oojo deal was found by Cheapflights users on 2/21. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/252:35 pmSOF - ORD
1 stop13h 05mLOT
Tue 9/25:10 pmORD - SOF
2 stops24h 50mLOT
Deal found 2/21$583
This United Airlines deal was found by Cheapflights users on 2/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:00 amSOF - ORD
2 stops16h 45mUnited Airlines
Sun 5/43:35 pmORD - SOF
1 stop12h 25mUnited Airlines
Deal found 2/21$624
This Gotogate deal was found by Cheapflights users on 2/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/261:45 pmSOF - ORD
1 stop12h 40mLufthansa
Tue 8/263:35 pmORD - SOF
1 stop19h 05mLufthansa
Deal found 2/21$632
This Air Canada deal was found by Cheapflights users on 2/22. 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.
Wed 3/266:00 amSOF - ORD
2 stops20h 55mAir Canada
Wed 8/2010:40 amORD - SOF
2 stops16h 35mAir Canada
Deal found 2/22$642
This Expedia deal was found by Cheapflights users on 2/22. 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.
Wed 3/261:45 pmSOF - ORD
1 stop12h 40mMultiple Airlines
Wed 8/202:20 pmORD - SOF
1 stop11h 45mMultiple Airlines
Deal found 2/22$643
This Austrian Airlines deal was found by Cheapflights users on 2/22. 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.
Sun 3/236:45 pmSOF - ORD
1 stop27h 20mAustrian Airlines
Mon 8/184:20 pmORD - SOF
1 stop11h 20mAustrian Airlines
Deal found 2/22$651
This British Airways deal was found by Cheapflights users on 2/20. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/78:15 pmSOF - ORD
1 stop30h 30mBritish Airways
Fri 4/48:20 pmORD - SOF
2 stops40h 00mBritish Airways
Deal found 2/20$666
This Mytrip deal was found by Cheapflights users on 2/22. 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.
Mon 4/74:00 pmVAR - ORD
1 stop29h 20mMultiple Airlines
Mon 4/149:40 pmORD - VAR
2 stops33h 35mMultiple Airlines
Deal found 2/22$676
This Lufthansa deal was found by Cheapflights users on 2/22. 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.
Mon 4/74:00 pmVAR - ORD
2 stops29h 55mLufthansa
Mon 4/149:40 pmORD - VAR
2 stops33h 35mLufthansa
Deal found 2/22$702
This Air France deal was found by Cheapflights users on 2/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/97:00 amSOF - MDW
2 stops18h 18mMultiple Airlines
Tue 3/252:55 pmMDW - SOF
2 stops16h 00mMultiple Airlines
Deal found 2/21$721
This Austrian Airlines deal was found by Cheapflights users on 2/20. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/61:35 pmVAR - ORD
1 stop31h 45mAustrian Airlines
Sun 12/214:20 pmORD - VAR
1 stop14h 55mAustrian Airlines
Deal found 2/20$736
This KLM deal was found by Cheapflights users on 2/21. 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 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 28mKLM
Mon 6/301:00 pmMDW - SOF
2 stops17h 00mKLM
Deal found 2/21$765

Find flights from Bulgaria to Illinois within your budget

Customize your flight search to find flights from Bulgaria to Illinois 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 February 22, 2025.

Fly from

Bulgaria

Fly to

Illinois

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 5/25

2:35 pm-7:40 pm

1 stop13h 05m

Chicago O'Hare Intl

Tue 9/2

5:10 pm-2:00 am

2 stops24h 50m

$583

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/5

6:00 am-2:45 pm

2 stops16h 45m

Chicago O'Hare Intl

Sun 5/4

3:35 pm-12:00 pm

1 stop12h 25m

$624

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/26

1:45 pm-7:25 pm

1 stop12h 40m

Chicago O'Hare Intl

Tue 8/26

3:35 pm-6:40 pm

1 stop19h 05m

$632

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/26

6:00 am-7:55 pm

2 stops20h 55m

Chicago O'Hare Intl

Wed 8/20

10:40 am-11:15 am

2 stops16h 35m

$642

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/26

1:45 pm-7:25 pm

1 stop12h 40m

Chicago O'Hare Intl

Wed 8/20

2:20 pm-10:05 am

1 stop11h 45m

$643

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 3/23

6:45 pm-3:05 pm

1 stop27h 20m

Chicago O'Hare Intl

Mon 8/18

4:20 pm-11:40 am

1 stop11h 20m

$651

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 3/7

8:15 pm-6:45 pm

1 stop30h 30m

Chicago O'Hare Intl

Fri 4/4

8:20 pm-8:20 pm

2 stops40h 00m

$666

VarnaChicago

VAR - ORD

VARORD

Varna

Mon 4/7

4:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Mon 4/14

9:40 pm-3:15 pm

2 stops33h 35m

$676

VarnaChicago

VAR - ORD

VARORD

Varna

Mon 4/7

4:00 pm-1:55 pm

2 stops29h 55m

Chicago O'Hare Intl

Mon 4/14

9:40 pm-3:15 pm

2 stops33h 35m

$702

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sun 3/9

7:00 am-5:18 pm

2 stops18h 18m

Chicago Midway

Tue 3/25

2:55 pm-1:55 pm

2 stops16h 00m

$721

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Showing 1-10 of 37 results
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Best time to book a flight from Bulgaria to Illinois

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

Travel insights for flights from Bulgaria to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from Bulgaria to Illinois (average of $245). Flying from Bulgaria to Illinois 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 IL?

Find hourly flight availability from Bulgaria to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 22, 2025.

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

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois 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 Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated February 22, 2025.
Read through reviews of airlines operating flights from Bulgaria to Illinois, such as Emirates, KLM and LOT. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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
8.1
Very good
3,278 reviews
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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
1,330 reviews
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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
1,079 reviews
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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
7.5
Good
771 reviews
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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
1,566 reviews
Emirates
8.1
Very good
3,278 reviews

Boarding

8.1

Entertainment

8.2

Crew

8.3

Overall

8.1

Comfort

8.0

Food

7.9

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 Illinois. 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 Illinois one-way?

    The cheapest airlines for a one-way flight from Bulgaria to Illinois are Air Serbia ($446), Qatar Airways ($546), and American Airlines ($609).

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Bulgaria to Illinois 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 Illinois?

    Currently, August is the cheapest month in which you can book a flight from Bulgaria to Illinois (average of $245). Flying from Bulgaria to Illinois 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

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Alternative routes for Bulgaria to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Bulgaria to Illinois

Discover the top 9 airlines that operate flights from Bulgaria to Illinois. 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 February 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$460Average$798FlexibilityNo cancel feeOn-time75%
LOTCheapest$516Average$644FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$546Average$795FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$560Average$672FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$576Average$862FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$597Average$770FlexibilityNo cancel feeOn-time76%
Turkish AirlinesCheapest$601Average$805FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$603Average$756FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$631Average$688FlexibilityNo cancel feeOn-time81%
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