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 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 29h 20m.

What airlines fly to Illinois?

LOT, Lufthansa and Turkish 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 31% 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.

What is the cheapest airline that flies from Bulgaria to Illinois?

British Airways and Air Serbia are the most popular carriers operating 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 September 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.

$409 Cheap Flights from Bulgaria to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

11:15 am - 4:45 pmSOF Sofia-ORD Chicago O'Hare Intl

37h 30m2 stops Warsaw Modlin Kastrup Copenhagen

8:15 pm - 8:50 pmORD Chicago O'Hare Intl-SOF Sofia

16h 35m1 stop Istanbul

$820Multiple Airlines

Fri, Nov 13 - Thu, Nov 26

5:00 am - 6:20 pmSOF Sofia-ORD Chicago O'Hare Intl

21h 20m3 stops Belgrade Nikola Tesla Paris Charles de Gaulle Dublin

6:30 pm - 5:55 pmORD Chicago O'Hare Intl-SOF Sofia

15h 25m2 stops Reykjavik Keflavik Intl Berlin Brandenburg

$821Multiple Airlines

Thu, Nov 12 - Thu, Nov 26

4:00 pm - 8:20 pmSOF Sofia-ORD Chicago O'Hare Intl

35h 20m1 stop Istanbul

8:15 pm - 3:10 pmORD Chicago O'Hare Intl-SOF Sofia

34h 55m1 stop Istanbul

$839Turkish Airlines

Sat, Oct 31 - Sat, Nov 14

3:50 pm - 9:40 amSOF Sofia-ORD Chicago O'Hare Intl

25h 50m1 stop Istanbul

8:10 pm - 3:00 pmORD Chicago O'Hare Intl-SOF Sofia

34h 50m1 stop Istanbul

$840Turkish Airlines

Mon, Oct 12 - Mon, May 10

2:35 pm - 7:50 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 15m1 stop Warsaw Frederic Chopin

9:50 pm - 5:55 pmORD Chicago O'Hare Intl-SOF Sofia

12h 05m1 stop Warsaw Frederic Chopin

$845LOT

Mon, Oct 19 - Thu, Nov 5

2:10 pm - 7:55 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 45m1 stop Frankfurt am Main

9:50 pm - 10:55 pmORD Chicago O'Hare Intl-SOF Sofia

17h 05m1 stop Munich Franz Josef Strauss

$845Lufthansa

Thu, Oct 15 - Mon, Nov 30

6:45 pm - 7:50 pmSOF Sofia-ORD Chicago O'Hare Intl

33h 05m1 stop Warsaw Frederic Chopin

9:50 pm - 1:50 pmORD Chicago O'Hare Intl-SOF Sofia

32h 00m1 stop Warsaw Frederic Chopin

$848LOT

Mon, Oct 19 - Thu, Dec 10

2:10 pm - 7:55 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 45m1 stop Frankfurt am Main

9:50 pm - 10:55 pmORD Chicago O'Hare Intl-SOF Sofia

17h 05m1 stop Munich Franz Josef Strauss

$849Lufthansa

Thu, Oct 22 - Thu, Feb 25

8:00 am - 1:20 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 20m1 stop Vienna Intl

4:20 pm - 6:00 pmORD Chicago O'Hare Intl-SOF Sofia

17h 40m1 stop Vienna Intl

$850Austrian Airlines

Tue, Oct 6 - Thu, Nov 5

4:00 pm - 1:20 pmVAR Varna-ORD Chicago O'Hare Intl

29h 20m1 stop Vienna Intl

4:20 pm - 3:15 pmORD Chicago O'Hare Intl-VAR Varna

14h 55m1 stop Vienna Intl

$850Austrian Airlines

Thu, Oct 15 - Thu, Oct 22

Recent last minute flight deals from Bulgaria to Illinois

Enter your travel dates to find the best prices.

9:40 am - 5:15 amSOF Sofia-ORD Chicago O'Hare Intl

27h 35m2 stops Bergamo Orio Al Serio Cairo

7:05 pm - 3:00 pmORD Chicago O'Hare Intl-SOF Sofia

11h 55m1 stop Zurich

$866Multiple Airlines

Thu, Sep 24 - Sun, Aug 1

9:40 am - 5:15 amSOF Sofia-ORD Chicago O'Hare Intl

27h 35m2 stops Bergamo Orio Al Serio Cairo

9:40 pm - 6:40 pmORD Chicago O'Hare Intl-SOF Sofia

13h 00m1 stop Munich Franz Josef Strauss

$869Multiple Airlines

Thu, Sep 24 - Wed, Aug 4

6:30 am - 5:59 amSOF Sofia-ORD Chicago O'Hare Intl

31h 29m2 stops Frankfurt am Main Detroit Metropolitan Wayne County

12:59 pm - 1:15 pmORD Chicago O'Hare Intl-SOF Sofia

16h 16m2 stops Newark Munich Franz Josef Strauss

$893United Airlines

Thu, Sep 24 - Tue, Nov 24

6:30 am - 4:53 pmSOF Sofia-ORD Chicago O'Hare Intl

18h 23m2 stops Frankfurt am Main Newark

6:00 pm - 1:15 pmORD Chicago O'Hare Intl-SOF Sofia

11h 15m1 stop Munich Franz Josef Strauss

$893United Airlines

Thu, Sep 24 - Tue, Nov 24

6:45 pm - 7:50 pmSOF Sofia-ORD Chicago O'Hare Intl

33h 05m1 stop Warsaw Frederic Chopin

9:50 pm - 1:50 pmORD Chicago O'Hare Intl-SOF Sofia

32h 00m1 stop Warsaw Frederic Chopin

$913LOT

Thu, Sep 24 - Tue, Nov 24

6:30 am - 12:55 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 25m1 stop Frankfurt am Main

9:40 pm - 6:40 pmORD Chicago O'Hare Intl-SOF Sofia

13h 00m1 stop Munich Franz Josef Strauss

$948Lufthansa

Thu, Sep 24 - Tue, Aug 3

6:55 pm - 1:20 pmSOF Sofia-ORD Chicago O'Hare Intl

26h 25m1 stop Vienna Intl

4:20 pm - 11:40 amORD Chicago O'Hare Intl-SOF Sofia

11h 20m1 stop Vienna Intl

$962Austrian Airlines

Wed, Sep 23 - Tue, Aug 3

6:55 pm - 1:20 pmSOF Sofia-ORD Chicago O'Hare Intl

26h 25m1 stop Vienna Intl

1:12 pm - 11:40 amORD Chicago O'Hare Intl-SOF Sofia

14h 28m2 stops Washington, D.C. Dulles Intl Vienna Intl

$962Austrian Airlines

Wed, Sep 23 - Wed, Aug 4

6:10 am - 6:15 pmSOF Sofia-ORD Chicago O'Hare Intl

20h 05m1 stop Munich Franz Josef Strauss

6:00 pm - 6:20 pmORD Chicago O'Hare Intl-SOF Sofia

16h 20m1 stop Munich Franz Josef Strauss

$974Lufthansa

Fri, Sep 25 - Tue, Nov 24

6:45 pm - 3:10 pmSOF Sofia-ORD Chicago O'Hare Intl

28h 25m1 stop Warsaw Frederic Chopin

5:10 pm - 6:00 pmORD Chicago O'Hare Intl-SOF Sofia

16h 50m1 stop Warsaw Frederic Chopin

$1,112LOT

Wed, Sep 23 - Mon, Aug 2

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Lufthansa flights from Bulgaria to Illinois

Our best Lufthansa deals on Bulgaria to Illinois flight tickets

Lufthansa

Oct 22

SOF2:10 pmSofia

13h 45m

1 stop

ORD7:55 pmChicago O'Hare Intl

Feb 25

ORD9:50 pmChicago O'Hare Intl

17h 05m

1 stop

SOF10:55 pmSofia

$849

Lufthansa

Oct 22

SOF2:10 pmSofia

13h 45m

1 stop

ORD7:55 pmChicago O'Hare Intl

Feb 25

ORD9:50 pmChicago O'Hare Intl

17h 05m

1 stop

SOF10:55 pmSofia

$852

Lufthansa

Oct 13

SOF6:10 amSofia

16h 45m

1 stop

ORD2:55 pmChicago O'Hare Intl

Dec 10

ORD6:00 pmChicago O'Hare Intl

20h 55m

1 stop

SOF10:55 pmSofia

$855

Austrian Airlines flights from Bulgaria to Illinois

Our best Austrian Airlines deals on Bulgaria to Illinois flight tickets

Austrian Airlines

Oct 6

SOF8:00 amSofia

13h 20m

1 stop

ORD1:20 pmChicago O'Hare Intl

Nov 5

ORD4:20 pmChicago O'Hare Intl

17h 40m

1 stop

SOF6:00 pmSofia

$850

Austrian Airlines

Oct 15

VAR8:30 pmVarna

24h 50m

1 stop

ORD1:20 pmChicago O'Hare Intl

Oct 22

ORD4:20 pmChicago O'Hare Intl

14h 55m

1 stop

VAR3:15 pmVarna

$853

Austrian Airlines

Dec 15

VAR4:00 pmVarna

30h 00m

1 stop

ORD2:00 pmChicago O'Hare Intl

Mar 8

ORD4:20 pmChicago O'Hare Intl

14h 55m

1 stop

VAR3:15 pmVarna

$871

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Fri 11/13

11:15 am-4:45 pm

2 stops37h 30m

Chicago O'Hare Intl

Thu 11/26

8:15 pm-8:50 pm

1 stop16h 35m

$820

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 11/12

5:00 am-6:20 pm

3 stops21h 20m

Chicago O'Hare Intl

Thu 11/26

6:30 pm-5:55 pm

2 stops15h 25m

$821

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Sat 10/31

4:00 pm-8:20 pm

1 stop35h 20m

Chicago O'Hare Intl

Sat 11/14

8:15 pm-3:10 pm

1 stop34h 55m

$839

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 10/12

3:50 pm-9:40 am

1 stop25h 50m

Chicago O'Hare Intl

Mon 5/10

8:10 pm-3:00 pm

1 stop34h 50m

$840

Quickest round-trip

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 10/19

2:35 pm-7:50 pm

1 stop13h 15m

Chicago O'Hare Intl

Thu 11/5

9:50 pm-5:55 pm

1 stop12h 05m

$845

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 10/15

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Mon 11/30

9:50 pm-10:55 pm

1 stop17h 05m

$845

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Mon 10/19

6:45 pm-7:50 pm

1 stop33h 05m

Chicago O'Hare Intl

Thu 12/10

9:50 pm-1:50 pm

1 stop32h 00m

$848

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Thu 10/22

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Thu 2/25

9:50 pm-10:55 pm

1 stop17h 05m

$849

SofiaChicago

SOF Sofia - ORD Chicago O'Hare Intl

SOFORD

Sofia

Tue 10/6

8:00 am-1:20 pm

1 stop13h 20m

Chicago O'Hare Intl

Thu 11/5

4:20 pm-6:00 pm

1 stop17h 40m

$850

VarnaChicago

VAR Varna - ORD Chicago O'Hare Intl

VARORD

Varna

Thu 10/15

4:00 pm-1:20 pm

1 stop29h 20m

Chicago O'Hare Intl

Thu 10/22

4:20 pm-3:15 pm

1 stop14h 55m

$850

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 May. Flight prices, which tend to average around $774, 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 May, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $775.

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 $817 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 $685 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

Best Price Found	$409
Fastest flight time	13h 15m
Direct flights	None

The best one-way flight to Illinois from Bulgaria in the past 72 hours is $409. The best round-trip flight deal from Bulgaria to Illinois found on momondo in the last 72 hours is $820.

The fastest flight from Bulgaria to Illinois takes 13h 15m

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 September 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 $609	Free Cancellation	Rating 7.6 1,197 reviews	Search LOT flights
Turkish Airlines	PriceFrom $625	Free Cancellation	Rating 7.4 4,466 reviews	Search Turkish Airlines flights
KLM	PriceFrom $652	Free Cancellation	Rating 7.8 1,575 reviews	Search KLM flights
Lufthansa	PriceFrom $714	Free Cancellation	Rating 6.8 8,236 reviews	Search Lufthansa flights
United Airlines	PriceFrom $735	Free Cancellation	Rating 7.4 10,227 reviews	Search United Airlines flights
Austrian Airlines	PriceFrom $806	Free Cancellation	Rating 7.6 967 reviews	Search Austrian Airlines 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.