How long is the flight from Bulgaria to Illinois?

The flight from Bulgaria to Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Sofia (a popular airport in Bulgaria) to Chicago O'Hare Intl Airport (the most popular airport in Illinois), then the flight time is 15h 15m on average. If you fly from Varna (another popular airport in Bulgaria) to Chicago O'Hare Intl Airport, then the average flight time is 21h 45m.

What airlines fly to Illinois?

LOT, Lufthansa and United Airlines are the top three most popular airlines that fly to Illinois from Bulgaria according to our data. LOT is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 6 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Bulgaria to Illinois?

Prices for flights from Bulgaria to Illinois were last updated today.

How many operators does momondo search for flights from Bulgaria to Illinois?

As of May 2026, there are 6 operators available to choose from for flights from Bulgaria to Illinois.

How old do you have to be to fly from Bulgaria to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bulgaria to Illinois.

What documentation or ID do you need to fly to Illinois?

The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$399 Cheap Flights from Bulgaria to Illinois in 2026

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Find the cheapest flights from Bulgaria to Illinois

Round-trip

One-way

Last minute

Recent round-trip flight deals from Bulgaria to Illinois

Enter your travel dates to find the best prices.

3:50 pm - 9:40 am

SOF

ORD

25h 50m

1 stop

11:25 am - 8:45 am

ORD

SOF

13h 20m

1 stop

$742Turkish Airlines

Wed, Jul 8 - Thu, Aug 20

9:05 pm - 9:40 am

SOF

ORD

20h 35m

1 stop

11:25 am - 8:45 am

ORD

SOF

13h 20m

1 stop

$743Turkish Airlines

Mon, Jun 22 - Tue, Jul 7

3:50 pm - 9:40 am

SOF

ORD

25h 50m

1 stop

11:25 am - 11:45 am

ORD

SOF

16h 20m

1 stop

$746Turkish Airlines

Wed, Jul 8 - Thu, Aug 20

3:50 pm - 9:40 am

SOF

ORD

25h 50m

1 stop

8:10 pm - 3:00 pm

ORD

SOF

34h 50m

1 stop

$747Turkish Airlines

Wed, Jul 8 - Thu, Aug 20

10:15 am - 8:05 pm

VAR

ORD

17h 50m

2 stops

7:05 pm - 9:40 am

ORD

VAR

30h 35m

1 stop

$878Multiple Airlines

Fri, Jul 3 - Fri, Jul 10

4:00 pm - 1:20 pm

VAR

ORD

29h 20m

1 stop

10:30 pm - 8:35 am

ORD

VAR

26h 05m

1 stop

$898Multiple Airlines

Wed, May 27 - Thu, Jun 25

10:15 am - 12:55 pm

VAR

ORD

34h 40m

1 stop

6:30 pm - 8:40 am

ORD

VAR

30h 10m

1 stop

$932Lufthansa

Fri, Jul 3 - Fri, Jul 10

9:30 pm - 2:55 pm

VAR

ORD

25h 25m

2 stops

10:30 pm - 5:55 pm

ORD

VAR

35h 25m

2 stops

$934Lufthansa

Wed, May 27 - Thu, Jun 25

7:00 am - 6:18 pm

SOF

MDW

19h 18m

2 stops

1:18 pm - 2:00 pm

MDW

SOF

16h 42m

2 stops

$946KLM

Mon, Jun 22 - Tue, Jul 7

7:00 am - 6:18 pm

SOF

MDW

19h 18m

2 stops

1:18 pm - 2:00 pm

MDW

SOF

16h 42m

2 stops

$950KLM

Mon, Jun 22 - Tue, Jul 7

KLM flights from Bulgaria to Illinois

Our best KLM deals on Bulgaria to Illinois flight tickets

KLM

May 23

SOF7:00 amSofia

17h 29m

2 stops

ORD4:29 pmChicago O'Hare Intl

May 27

ORD2:00 pmChicago O'Hare Intl

16h 00m

2 stops

SOF2:00 pmSofia

$858

KLM

May 23

SOF7:00 amSofia

15h 15m

1 stop

ORD2:15 pmChicago O'Hare Intl

May 27

ORD2:00 pmChicago O'Hare Intl

16h 00m

2 stops

SOF2:00 pmSofia

$883

KLM

May 23

SOF7:00 amSofia

17h 56m

2 stops

ORD4:56 pmChicago O'Hare Intl

Jun 6

ORD4:20 pmChicago O'Hare Intl

13h 40m

1 stop

SOF2:00 pmSofia

$892

Turkish Airlines flights from Bulgaria to Illinois

Our best Turkish Airlines deals on Bulgaria to Illinois flight tickets

Turkish Airlines

Jul 8

SOF3:50 pmSofia

25h 50m

1 stop

ORD9:40 amChicago O'Hare Intl

Aug 20

ORD11:25 amChicago O'Hare Intl

13h 20m

1 stop

SOF8:45 amSofia

$742

Turkish Airlines

Jun 22

SOF9:05 pmSofia

20h 35m

1 stop

ORD9:40 amChicago O'Hare Intl

Jul 7

ORD11:25 amChicago O'Hare Intl

13h 20m

1 stop

SOF8:45 amSofia

$743

Turkish Airlines

Jul 8

SOF3:50 pmSofia

25h 50m

1 stop

ORD9:40 amChicago O'Hare Intl

Aug 18

ORD11:25 amChicago O'Hare Intl

24h 50m

1 stop

SOF8:15 pmSofia

$746

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 7/8

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Thu 8/20

11:25 am-8:45 am

1 stop13h 20m

$742

Quickest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 6/22

9:05 pm-9:40 am

1 stop20h 35m

Chicago O'Hare Intl

Tue 7/7

11:25 am-8:45 am

1 stop13h 20m

$743

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 7/8

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Thu 8/20

11:25 am-11:45 am

1 stop16h 20m

$746

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 7/8

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Thu 8/20

8:10 pm-3:00 pm

1 stop34h 50m

$747

VarnaChicago

VAR - ORD

VARORD

Varna

Fri 7/3

10:15 am-8:05 pm

2 stops17h 50m

Chicago O'Hare Intl

Fri 7/10

7:05 pm-9:40 am

1 stop30h 35m

$878

VarnaChicago

VAR - ORD

VARORD

Varna

Wed 5/27

4:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Thu 6/25

10:30 pm-8:35 am

1 stop26h 05m

$898

VarnaChicago

VAR - ORD

VARORD

Varna

Fri 7/3

10:15 am-12:55 pm

1 stop34h 40m

Chicago O'Hare Intl

Fri 7/10

6:30 pm-8:40 am

1 stop30h 10m

$932

VarnaChicago

VAR - ORD

VARORD

Varna

Wed 5/27

9:30 pm-2:55 pm

2 stops25h 25m

Chicago O'Hare Intl

Thu 6/25

10:30 pm-5:55 pm

2 stops35h 25m

$934

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Mon 6/22

7:00 am-6:18 pm

2 stops19h 18m

Chicago Midway

Tue 7/7

1:18 pm-2:00 pm

2 stops16h 42m

$946

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Mon 6/22

7:00 am-6:18 pm

2 stops19h 18m

Chicago Midway

Tue 7/7

1:18 pm-2:00 pm

2 stops16h 42m

$950

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Bulgaria to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Bulgaria is in January. Flight prices, which tend to average around $388, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $466.

How far in advance should I book a flight from Bulgaria to Illinois?

You are more likely to see cheaper flights to Illinois from Bulgaria when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $774 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Bulgaria for as low as $710 on momondo.

Cheap Bulgaria to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bulgaria to Illinois

Fastest flight time	15h 15m
Direct flights	None

The fastest flight from Bulgaria to Illinois takes 15h 15m

There are no direct flights from Bulgaria to Illinois. There are no popular flight routes from Bulgaria to Illinois.

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Frequently asked questions about flying from Bulgaria to Illinois

When did momondo last update prices for flights from Bulgaria to Illinois?
Prices for flights from Bulgaria to Illinois were last updated today.
How many operators does momondo search for flights from Bulgaria to Illinois?
As of May 2026, there are 6 operators available to choose from for flights from Bulgaria to Illinois.
How old do you have to be to fly from Bulgaria to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bulgaria to Illinois.
What documentation or ID do you need to fly to Illinois?
The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Bulgaria to Illinois

Compare and see reviews for airlines that fly from Bulgaria to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Turkish Airlines	PriceFrom $616	Free Cancellation	Rating 7.4 4,373 reviews	Search Turkish Airlines flights
LOT	PriceFrom $625	Free Cancellation	Rating 7.5 1,191 reviews	Search LOT flights
KLM	PriceFrom $652	Free Cancellation	Rating 7.8 1,517 reviews	Search KLM flights
Austrian Airlines	PriceFrom $665	Free Cancellation	Rating 7.6 913 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $685	Free Cancellation	Rating 7.4 9,737 reviews	Search United Airlines flights
Lufthansa	PriceFrom $711	Free Cancellation	Rating 6.8 8,009 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Bulgaria to Illinois?

Finding the right flight to Illinois from Bulgaria is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Bulgaria to Illinois with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Illinois from Bulgaria with this policy.

How can momondo help me find flights from Bulgaria to Illinois?

Once you have performed a search for Bulgaria to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Bulgaria to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Bulgaria to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.