How long is the flight to Chicago?

The duration of your flight to Chicago depends on your departure and arrival airports. Obviously, any flights that include a layover will also be longer. The most popular routes to Chicago on KAYAK are from Sofia , which takes 14h 45m , Varna , which takes 30h 00m, and Burgas , which takes 31h 00m.

Which Chicago airport is closest to central Chicago?

The distance between Chicago Midway Airport and downtown Chicago is 9 miles, which makes it the closest of the 3 Chicago airports. Chicago O'Hare Airport is 16 miles away from the center and Chicago Greater Rockford is 79 miles away.

Which is the cheapest airport to fly into in Chicago?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Chicago is Chicago Greater Rockford Airport (RFD) , with an average flight price of $137.

What is the cheapest month to fly to Chicago?

The cheapest month for flights to Chicago is February , where tickets cost $777 on average for return flights. On the other hand, the most expensive months are August and October, where the average cost of tickets from Bulgaria is $939 and $878 respectively. For one-way flights, the best month to travel is April with an average price of $573.

How does KAYAK find such low prices on flights to Chicago?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Chicago.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Chicago?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights to Chicago?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Chicago?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

How many airports are there in Chicago?

There are 3 airports in Chicago: Chicago O'Hare Airport (ORD), Chicago Midway Airport (MDW) and Chicago Greater Rockford Airport (RFD). The busiest airport is Chicago O'Hare Airport (ORD), with 96% of all flights arriving there.

How far in advance should I book a flight to Chicago?

To get a below average price, you should book around 5 weeks before departure , which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

How many direct flights to Chicago are there each day?

There are around 5,532 direct flights from within Bulgaria to Chicago every day. Most flights depart in the morning, with 49% of flights departing in the morning.

How many direct flights to Chicago are there each week?

Each week there are around 38,723 direct flights from within Bulgaria to Chicago. The most common day for departures is Sunday, with 17% of flights taking off on this day.

What are the most popular airlines flying to Chicago?

The most popular airline among KAYAK users flying to Chicago is LOT, followed by Lufthansa and Turkish Airlines.

$393 CHEAP FLIGHTS from Bulgaria to Chicago

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Flight Deals

Cheap Flights from Bulgaria to Chicago

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Recent round-trip flight deals from Bulgaria to Chicago

Wed, Jan 20 - Wed, Feb 10

12:45 pm - 7:15 pmSOF Sofia-ORD Chicago O'Hare Intl

38h 30m2 stops Berlin Brandenburg Dublin

6:50 pm - 3:25 pmORD Chicago O'Hare Intl-SOF Sofia

12h 35m1 stop Zurich

$811Multiple Airlines

Thu, Nov 12 - Sun, May 9

10:55 am - 3:30 pmSOF Sofia-ORD Chicago O'Hare Intl

36h 35m2 stops Madrid Barajas Lisbon Humberto Delgado

9:40 pm - 11:05 pmORD Chicago O'Hare Intl-SOF Sofia

17h 25m1 stop Munich Franz Josef Strauss

$811Multiple Airlines

Sun, Dec 13 - Tue, Dec 29

2:35 pm - 7:55 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 20m1 stop Warsaw Frederic Chopin

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

12h 05m1 stop Warsaw Frederic Chopin

$813LOT

Fri, Nov 13 - Thu, Nov 26

6:25 am - 1:10 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 45m1 stop Frankfurt am Main

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

17h 05m1 stop Munich Franz Josef Strauss

$828Lufthansa

Thu, Nov 5 - Wed, Nov 18

6:25 am - 1:10 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 45m1 stop Frankfurt am Main

4:20 pm - 1:25 pmORD Chicago O'Hare Intl-SOF Sofia

13h 05m1 stop Frankfurt am Main

$830Lufthansa

Sun, Dec 13 - Tue, Dec 29

2:35 pm - 7:55 pmSOF Sofia-ORD Chicago O'Hare Intl

13h 20m1 stop Warsaw Frederic Chopin

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

12h 05m1 stop Warsaw Frederic Chopin

$831LOT

Fri, Nov 20 - Fri, Sep 3

6:25 am - 8:05 pmSOF Sofia-ORD Chicago O'Hare Intl

21h 40m1 stop Frankfurt am Main

6:00 pm - 6:40 pmORD Chicago O'Hare Intl-SOF Sofia

16h 40m1 stop Munich Franz Josef Strauss

$860United Airlines

Tue, Nov 10 - Sat, Dec 26

6:25 am - 1:10 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 45m1 stop Frankfurt am Main

6:05 pm - 11:00 pmORD Chicago O'Hare Intl-SOF Sofia

20h 55m1 stop Frankfurt am Main

$861United Airlines

Sat, Nov 21 - Sat, Apr 24

7:55 am - 2:00 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 05m1 stop Vienna Intl

4:20 pm - 3:20 pmORD Chicago O'Hare Intl-SOF Sofia

15h 00m1 stop Vienna Intl

$875Austrian Airlines

Sat, Nov 7 - Sat, Apr 17

7:55 am - 2:00 pmSOF Sofia-ORD Chicago O'Hare Intl

14h 05m1 stop Vienna Intl

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

11h 20m1 stop Vienna Intl

$875Austrian Airlines

Booking Insights

KAYAK's insights & trends for flights to Chicago

Get data-powered insights and trends for flights to Chicago to help you find the cheapest flights, the best time to fly and much more.

Prices

Airlines

What is the cheapest month to fly to Chicago? To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Chicago, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.: The cheapest month for flights to Chicago is February, where tickets cost $777 on average for return flights. On the other hand, the most expensive months are August and October, where the average cost of tickets from Bulgaria is $939 and $878 respectively. For one-way flights, the best month to travel is April with an average price of $573.
How far in advance should I book a flight to Chicago? To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Chicago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.: To get a below average price, you should book around 5 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.
Which is the cheapest airport to fly into in Chicago?: Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Chicago is Chicago Greater Rockford Airport (RFD), with an average flight price of $137.

Find deals

Low season	February
High season	October
Cheapest flight	$393

Best time to beat the crowds with an average 12% drop in price.

Most popular time to fly with an average 6% increase in price.

Flight from Sofia to Chicago

Which Chicago airport is closest to central Chicago?
The distance between Chicago Midway Airport and downtown Chicago is 9 miles, which makes it the closest of the 3 Chicago airports. Chicago O'Hare Airport is 16 miles away from the center and Chicago Greater Rockford is 79 miles away.
How does KAYAK find such low prices on flights to Chicago?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Chicago.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Chicago?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights to Chicago?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Chicago?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.
How many direct flights to Chicago are there each week?
Each week there are around 38,723 direct flights from within Bulgaria to Chicago. The most common day for departures is Sunday, with 17% of flights taking off on this day.

Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago flight deals.

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$393 Find Cheap Flights from Bulgaria to Chicago - Compare and Save

Cheap Flights from Bulgaria to Chicago

Recent round-trip flight deals from Bulgaria to Chicago

Recent one-way flight deals from Bulgaria to Chicago

KAYAK's insights & trends for flights to Chicago

What is the cheapest month to fly to Chicago?

How far in advance should I book a flight to Chicago?

Which is the cheapest airport to fly into in Chicago?

What are the most popular airlines flying to Chicago?

How many airports are there in Chicago?

How long is the flight to Chicago?

How many direct flights to Chicago are there each day?

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