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.

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 13h 20m on average. If you fly from Burgas (another popular airport in Bulgaria) to Chicago O'Hare Intl Airport, then the average flight time is 30h 20m.

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 April 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.

$320 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 - 6:15 pm

SOF

ORD

34h 25m

1 stop

11:25 am - 3:00 pm

ORD

SOF

19h 35m

1 stop

$682Turkish Airlines

Sat, Jun 6 - Fri, Jul 10

2:05 pm - 9:40 am

SOF

ORD

27h 35m

1 stop

11:25 am - 1:15 pm

ORD

SOF

17h 50m

1 stop

$684Turkish Airlines

Sun, Apr 12 - Sat, Apr 25

6:45 pm - 3:10 pm

SOF

ORD

28h 25m

1 stop

9:50 pm - 1:55 am

ORD

SOF

20h 05m

1 stop

$697LOT

Wed, Sep 9 - Wed, Sep 30

5:25 am - 7:50 pm

SOF

ORD

22h 25m

1 stop

9:50 pm - 6:00 pm

ORD

SOF

12h 10m

1 stop

$699LOT

Fri, May 8 - Sun, Sep 27

7:00 am - 5:54 pm

SOF

MDW

18h 54m

2 stops

1:24 pm - 2:00 pm

MDW

SOF

16h 36m

2 stops

$755KLM

Sun, Apr 12 - Sat, Apr 25

7:00 am - 5:58 pm

SOF

MDW

18h 58m

2 stops

1:22 pm - 2:00 pm

MDW

SOF

16h 38m

2 stops

$767KLM

Thu, Apr 30 - Thu, May 28

7:00 am - 5:56 pm

SOF

MDW

18h 56m

2 stops

1:22 pm - 2:00 pm

MDW

SOF

16h 38m

2 stops

$873Multiple Airlines

Thu, May 7 - Tue, Jun 2

4:00 pm - 1:20 pm

VAR

ORD

29h 20m

1 stop

10:30 pm - 8:45 pm

ORD

VAR

14h 15m

2 stops

$876Multiple Airlines

Fri, Apr 24 - Tue, May 5

4:00 pm - 2:50 pm

VAR

ORD

30h 50m

2 stops

10:30 pm - 8:45 pm

ORD

VAR

14h 15m

2 stops

$893Lufthansa

Fri, Apr 24 - Tue, May 5

4:00 pm - 2:50 pm

VAR

ORD

30h 50m

2 stops

4:05 pm - 8:35 am

ORD

VAR

32h 30m

1 stop

$897Lufthansa

Fri, Apr 24 - Tue, May 5

Turkish Airlines flights from Bulgaria to Illinois

Our best Turkish Airlines deals on Bulgaria to Illinois flight tickets

Turkish Airlines

Jun 6

SOF3:50 pmSofia

34h 25m

1 stop

ORD6:15 pmChicago O'Hare Intl

Jul 10

ORD11:25 amChicago O'Hare Intl

19h 35m

1 stop

SOF3:00 pmSofia

$682

Turkish Airlines

Apr 12

SOF2:05 pmSofia

27h 35m

1 stop

ORD9:40 amChicago O'Hare Intl

Apr 25

ORD11:25 amChicago O'Hare Intl

17h 50m

1 stop

SOF1:15 pmSofia

$684

Turkish Airlines

May 22

SOF9:05 pmSofia

20h 35m

1 stop

ORD9:40 amChicago O'Hare Intl

Aug 10

ORD8:10 pmChicago O'Hare Intl

28h 35m

1 stop

SOF8:45 amSofia

$687

LOT flights from Bulgaria to Illinois

Our best LOT deals on Bulgaria to Illinois flight tickets

LOT

Sep 9

SOF6:45 pmSofia

28h 25m

1 stop

ORD3:10 pmChicago O'Hare Intl

Sep 30

ORD9:50 pmChicago O'Hare Intl

20h 05m

1 stop

SOF1:55 amSofia

$697

LOT

May 8

SOF5:25 amSofia

22h 25m

1 stop

ORD7:50 pmChicago O'Hare Intl

Sep 27

ORD9:50 pmChicago O'Hare Intl

12h 10m

1 stop

SOF6:00 pmSofia

$699

LOT

May 8

SOF5:25 amSofia

22h 25m

1 stop

ORD7:50 pmChicago O'Hare Intl

Sep 25

ORD9:50 pmChicago O'Hare Intl

12h 10m

1 stop

SOF6:00 pmSofia

$700

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 6/6

3:50 pm-6:15 pm

1 stop34h 25m

Chicago O'Hare Intl

Fri 7/10

11:25 am-3:00 pm

1 stop19h 35m

$682

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 4/12

2:05 pm-9:40 am

1 stop27h 35m

Chicago O'Hare Intl

Sat 4/25

11:25 am-1:15 pm

1 stop17h 50m

$684

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/9

6:45 pm-3:10 pm

1 stop28h 25m

Chicago O'Hare Intl

Wed 9/30

9:50 pm-1:55 am

1 stop20h 05m

$697

Quickest round-trip

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 5/8

5:25 am-7:50 pm

1 stop22h 25m

Chicago O'Hare Intl

Sun 9/27

9:50 pm-6:00 pm

1 stop12h 10m

$699

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sun 4/12

7:00 am-5:54 pm

2 stops18h 54m

Chicago Midway

Sat 4/25

1:24 pm-2:00 pm

2 stops16h 36m

$755

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Thu 4/30

7:00 am-5:58 pm

2 stops18h 58m

Chicago Midway

Thu 5/28

1:22 pm-2:00 pm

2 stops16h 38m

$767

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Thu 5/7

7:00 am-5:56 pm

2 stops18h 56m

Chicago Midway

Tue 6/2

1:22 pm-2:00 pm

2 stops16h 38m

$873

VarnaChicago

VAR - ORD

VARORD

Varna

Fri 4/24

4:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Tue 5/5

10:30 pm-8:45 pm

2 stops14h 15m

$876

VarnaChicago

VAR - ORD

VARORD

Varna

Fri 4/24

4:00 pm-2:50 pm

2 stops30h 50m

Chicago O'Hare Intl

Tue 5/5

10:30 pm-8:45 pm

2 stops14h 15m

$893

VarnaChicago

VAR - ORD

VARORD

Varna

Fri 4/24

4:00 pm-2:50 pm

2 stops30h 50m

Chicago O'Hare Intl

Tue 5/5

4:05 pm-8:35 am

1 stop32h 30m

$897

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 April. Flight prices, which tend to average around $708, 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 April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $708.

How far in advance should I book a flight 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 $752 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 $701 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	13h 20m
Direct flights	None

The fastest flight from Bulgaria to Illinois takes 13h 20m

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

Search flight deals

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 April 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
LOT	PriceFrom $619	Free Cancellation	Rating 7.5 1,181 reviews	Search LOT flights
Turkish Airlines	PriceFrom $625	Free Cancellation	Rating 7.4 4,292 reviews	Search Turkish Airlines flights
KLM	PriceFrom $631	Free Cancellation	Rating 7.8 1,481 reviews	Search KLM flights
Austrian Airlines	PriceFrom $654	Free Cancellation	Rating 7.6 904 reviews	Search Austrian Airlines flights
United Airlines	PriceFrom $683	Free Cancellation	Rating 7.4 9,535 reviews	Search United Airlines flights
Lufthansa	PriceFrom $707	Free Cancellation	Rating 6.8 7,882 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.