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Find cheap flights from Bulgaria to Chicago from $552

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Chicago departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Do 6/6
Do 6/13

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These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
These are the airlines KAYAK users have selected most often from within our search results for flights to Chicago
In the last 7 days travelers have searched 42,573,820 times on KAYAK, and here is why:

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Flights to Chicago - Travel Insights & Trends

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.

What is the cheapest day to fly to Chicago?

The average price of all flights to Chicago clicked on KAYAK for each day over the last 12 months.
Based on KAYAK data, the cheapest day to fly to Chicago is Wednesday where tickets can be as cheap as $682. On the other hand, the most expensive day to fly is Monday, where prices are $767 on average.

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 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 $586 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Bulgaria is $799 and $766 respectively. For return trips, the best month to travel is February with an average price of $586.

What is the cheapest time of day to fly to Chicago?

The average price for all flights to Chicago depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Chicago is generally at night, when flights cost $633 on average. The most expensive time of day to fly to Chicago is generally in the morning, which is peak travel time and where the average cost of a ticket is $737.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights to Chicago, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 68 days 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 Midway Airport, with an average flight price of $108.

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 80% of all flights arriving there.

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 Burgas, which takes 13h 25m, Varna, which takes 14h 10m, and Sofia, which takes 15h 57m.

How many direct flights to Chicago are there each day?

There are around 1,930 direct flights from within Bulgaria to Chicago every day. Most flights depart in the morning, with 6:00 am the most common departure time and 50% of flights departing in the morning.

How many direct flights to Chicago are there each week?

Each week there are around 13,504 direct flights from within Bulgaria to Chicago. The most common day for departures is Thursday, with 16% of flights taking off on this day.

Good to know

Low season

January

High season

December

Cheapest flight

$552
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from Sofia to Chicago O'Hare Airport

FAQs - booking Chicago flights

  • 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.

  • Which airline offers the most flights to Chicago?

    Of the 14 airlines that fly to Chicago, United Airlines offers the most flights, with around 5,246 per week, followed by American Airlines with 4,066 flights per week.

See more FAQs

Top tips for finding cheap flights to Chicago

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

Prefer to fly non-stop to Chicago?

Find which airlines fly direct to Chicago, which days they fly and book direct flights.

Nonstop departures

Bulgaria to Chicago

Monday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Wednesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +81 more

ANA, Aer Lingus, +82 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

See more direct flights

Nonstop returns

Chicago to Bulgaria

Monday

ANA, Aer Lingus, Aeromexico, +80 more

ANA, Aer Lingus, +81 more

Tuesday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Wednesday

ANA, Aer Lingus, Aeromexico, +79 more

ANA, Aer Lingus, +80 more

Thursday

ANA, Aer Lingus, Aeromexico, +78 more

ANA, Aer Lingus, +79 more

Friday

ANA, Aer Lingus, Aerolineas Argentinas, +81 more

ANA, Aer Lingus, +82 more

Saturday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

Sunday

ANA, Aer Lingus, Aerolineas Argentinas, +79 more

ANA, Aer Lingus, +80 more

See more direct flights
See more direct flights

Top 5 airlines serving from Bulgaria to Chicago

 
See real verified KAYAK customer reviews for airlines flying to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Bulgaria to Chicago. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Chicago? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
Austrian AirlinesOverall score based on 1065 reviews
6.8Food
8.1Crew
7.6Boarding
6.9Entertainment
7.4Comfort
Airline reviews

Schedule and on time departure and arrival were great. The crew was good, but a change in aircraft bumped many of us from our expected seats. It was a crowded flight, but the cabin crew did their best to keep things under control.

10.0 ExcellentCraig, Apr 2024VIE - EBL
Read more about Austrian Airlines reviews

Schedule and on time departure and arrival were great. The crew was good, but a change in aircraft bumped many of us from our expected seats. It was a crowded flight, but the cabin crew did their best to keep things under control.

Austrian airline they cancel my fight , and the couldn’t give me flight , they said only available flight 4th and after , I sacked for refund, even from you KYAK , and tell now no any refund , because what happened I lost more money because I have to stay in hotel and then I buy new ticket

I bought the ticket a month before my flight but checked in couple hours before my flight and had to wait seat assignment just before take off. On top of that there was not enough room in the overhead bin for my luggage.

The baggage arrived damaged and i spent EUR 300 on the baggage a month ago. No responsibility from airline or the handles.

Tight connection from Austrian Airlines made this challenging. Our luggage did not make it, delivered the next day at noon. Flight itself was very full, not especially comfortable.

The flight was late. We accommodated other missed flights, and the plane was full of people, without space to store carry-on luggage. They lost our checked luggage for the entire flight and delivered it after two days.

I am Star Alliance Gold which meant nothing at security as my partner, who was on the same ticket, couldn’t come through with me which meant I had to wait for 20 minutes for him to join me. For a hub airport the lounge was small and uninspiring. We told staff of our security experience and they informed us it was like this for everyone. Isn’t this is an Austrian Airlines hub? Boarding was a nightmare as there was only one person at the gate and again, I had to go through without my partner. The boarding was supposed to be in groups but a bunch of travellers with lower groups were crowding the entry level. After I managed to get through I found myself on a bus waiting with 3 others for 15 minutes as the checkin had failed. Then only to find everyone else coming onto the same bus. My partner and friends actually beat me onboard. The crew were young and unable to control the crowd allowing people to stand in the rain instead of getting people to their seats promptly. During flight we were only offered a cup of water & a chocolate. Not impressed with Austrian Airlines or their Vienna hub airport and plan not to use them again if I can help it!

Flight attendants were awful, very rude and inconsiderate for mothers with small infants traveling.

I been flying with Austrian for few years, they never failed me.

Very efficient and profesional .One of the best. I had 20 minutes between 2 flights and still made it amazing.

Movie selection was ok, but could be better. Would like to see greater selection of newer movies.

Loved the check-in experience. Very friendly staff and not crowded. I did wind up with a middle-middle seat, which was quite uncomfortable. Always appreciate the very professional staff on TAL.

Paying for reserved seats and never received the seats I paid for !! Just fake and a surprise out of their " box "

Turkish airline always good Only Turkish representatives at the gave need to be more helpfull to any staff who traveling on Turkish airline . One situation happened Ist to jfk on Feb 29 TK3 had seats I asked them to transfer me to tk3 because Feb 29 tk1 was oversold and they advise me that I might not make it for tk1 I asked them to transfer me to tk3 and they say no they can’t do it I been telling them you know that I don’t have a chance for tk 1 why would you let plane go with some empty seats on tk3 if you can transfer me to tk3 and have less staff on tk1 and still told me no I waited for tk1 9 hours and only last minute I got seat on tk1 It was not easy situation but I am glad I made it home Thank you Turkish Airline One more suggestion for Turkish Airline you need to make a FIRST CLASS cabin it would be so cool 🆒 Good luck all the best See you more

First class payment but wife’s seat broken, would recline but not lay flat. On previous flight, delays and ground crew malfunctions connecting jetway made us miss flight to Houston. I asked twice for a cart to assist us getting across the massive Istanbul Airport, but was denied. We are both over 70.

My flight had two legs. When checking in at the first leg the agent offering for a deal to upgrade the leg to first class for $199. He then claimed I would be able to upgrade the second leg once I got to the next airport. I declined and when I inquired about upgrading at the second airport, the cost was $1,300. I also had an issue at the airport lounge. I am allowed one guest in the lounge. My friend came in the lounge for less than 5 minutes and left when she couldn’t get a sleeping suite. I wanted to bring in another friend. The airport staff first started acting as though they didn’t understand English and then became upset when I asked for their names so I could file a complaint. As an elite member I knew they could do more but were not. One of the agents started over talking me and walked away mid conversation dismissing my request for assistance. A man claiming to be the manager said you were asking for her name. He also never tried to assist me or see what was going on. He claimed the interactions were recorded and management would see everything. I’m not sure how that would assist me days later. I am sure it didn’t help that I was a black American woman.

Better attitude training for staff at airport, better training for flight attendants, better food, don’t put us with all the crying babies that cried nonstop for 12 plus hours.

Crew announced boarding started and they asked passengers to form a queue. Actual boarding didn’t start and queue was not moving for around 40-50 mins. Very poor management.

It was a terrible airline. The air hostess and the people in the flight, just very rude.

Crew on this flight was terrible. Especially one practicular female , she was harassing us and other families with children. Flight was good overall, if not her being rude and aggressive

It was good! Appreciated that it was very on schedule so it made the connecting flight less stressful

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

We were delayed an hour leaving Munich (No fault of the crew). They kept us posted on the status so we knew what was going on, but as a result we missed our connection in Chicago and the communication on connecting flights was pretty poor as we disembarked. It was already stressful and some of that could have been reduced by better communications about where to find transfers, etc.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

Wifi wasn't working on one of the UA flights after boarding.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Crew was not very helpful. They forgot to serve me coffee and had to wait for a long time.It looked as if they were not very happy with what they were doing.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

All good. Didn’t get the seats I booked online. Luckily, copassanger cooperated! Mistake- I failed to verify connecting flight seats details at Mumbai. Staff at Mumbai airport to be blamed equally!

Would have liked to have Wi-Fi on the longer flight (nyc-Warsaw)

Horrible trip. Plane was late , so late . the flight conditions were very uncomfortable.

Pros: "Quick Check in"
Cons: "The crew were not nice. They dont even pick up garbage during the 9 hour flight. They give you a gallon of water in a huge bottle without a glass and you are on your own."
Cons: "The TVs didn’t work even thought the steward ESS restarted them ."
Cons: "Everything is good! But the monitor on back not working very well lot of brakes when you watch a movie or listen music!"
Pros: "Nothing to like"
Cons: "This Iwa’s very bad experience. Never again will use LOT"
Cons: "The worse experience ever. I booked the flight and then they canceled it, i tried changing the dates but the website was giving me an error so i called them, after being on the phone for 2 hr some guy answered who seemed very tired and not thrilled working for LOT. Rood and not helpful, told me to try FB messenger and online changing again. Failed to get a voucher, refund or change the dates online, was still getting an error. on messenger they answered and told me i can get a voucher, i told them i don't want it and after that they stopped replying all together. good thing i got my money back by filing a dispute with my credit cart company."
Pros: "The crew was very profesional . Our fly was safe and on time."
Cons: "Maybe variety of good movie could be better ."
Pros: "The crew was really great, seats like in any Airbus (I guess better then Boeing)"
Cons: "Very old movies as entertainment."

Touchscreens do not work. WiFi did not work. Food is possibly the worst on any European airline. Drinks came by only four times on a cross-Atlantic. The plane was two hours late because—it was announced—Lufthansa didn't have enough large aircraft in their fleet to accommodate an on-time flight.

It was freezing in the airplane. Everyone was wearing everything they had with them. The crew acknowledged it was cold, but did nothing about it

The crew member put her luggage and boxes behind my seat so I was able to recline while the passenger in front of me did for 8 hours. My knees were forced against the seat for hours :(. Dude sitting next to me hasn't showered in weeks so I almost threw up.

I always try to book flights that don’t charge for baggage. Yet I was charged $75 for this flight.

Our flight to Chicago O'Hare was delayed an hour, causing us to miss our connection to MSP and spend an extra 3 hours at O'Hare so we could board a plane with a damaged door and wait another 45 minutes or so. The crew was great, the food decent, The drinks were great: 2 glasses of a nice South African Shiraz, an ice cold can of Beck's Beer, and Dewar's White Label on the rocks.

A350 has great entertainment. Make sure to watch the plane's external tail and nose camera's on landing and take off. Seats were a little hard for a 10 hour flight. I am gluten intolerant, they had good alternative meals for me on the flight.

Boarding was horrible. We were packed into a bus with few seats and made to stand for 10 to 15 minutes, then driven for 5 minutes on wild curves. Complementary food and drink was a tiny chocolate and a bottle of water. Seating was cramped. Aircraft had no video.

didn’t even get to go one of my returning flights cancelled and I wasn’t even in their system, vacation ruined thanks for nothing

Need more time for connecting flights in Munich Food seems worse now on Lufthansa Very uncomfortable seats

Better flight than mum to Frankfurt. But food was very mediocre.

Book cheap flights from Bulgaria to Chicago

Recent round-trip flight deals

 
These are the cheapest round-trip flights to Chicago found on KAYAK in the last 72 hours.
6/6Do
1 stopBritish Airways
26h 30mSOF-ORD
7/5Fr
1 stopBritish Airways
18h 15mORD-SOF
$552
6/6Do
1 stopBritish Airways
26h 30mSOF-ORD
7/5Fr
1 stopBritish Airways
18h 15mORD-SOF
$617
6/6Do
1 stopLOT
33h 00mSOF-ORD
7/5Fr
2 stopsLOT
40h 45mORD-SOF
$630
6/20Do
1 stopUnited Airlines
16h 00mSOF-ORD
7/5Fr
2 stopsUnited Airlines
27h 10mORD-SOF
$639
6/20Do
2 stopsUnited Airlines
25h 20mSOF-ORD
7/5Fr
2 stopsUnited Airlines
27h 10mORD-SOF
$649
6/29Sa
1 stopLOT
32h 30mSOF-ORD
7/21So
2 stopsLOT
36h 45mORD-SOF
$654
5/27Mo
2 stopsAustrian Airlines
32h 07mSOF-ORD
6/30So
2 stopsAustrian Airlines
39h 15mORD-SOF
$706
7/19Fr
2 stopsAustrian Airlines
24h 40mSOF-ORD
3/1Sa
1 stopAustrian Airlines
17h 40mORD-SOF
$726
6/29Sa
2 stopsLufthansa
29h 20mSOF-ORD
7/12Fr
1 stopLufthansa
20h 00mORD-SOF
$769
7/28So
2 stopsLufthansa
25h 45mSOF-ORD
8/18So
1 stopLufthansa
20h 55mORD-SOF
$824

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to Chicago found on KAYAK in the last 72 hours.
10/19Sa
1 stopQatar Airways
33h 50mSOF-ORD
$576
9/27Fr
1 stopQatar Airways
33h 50mSOF-ORD
$577
8/19Mo
2 stops
37h 02mSOF-ORD
$592
9/27Fr
2 stopsBritish Airways
26h 19mSOF-ORD
$606
10/19Sa
3 stops
35h 15mSOF-ORD
$635
8/19Mo
3 stops
39h 22mSOF-ORD
$644
8/19Mo
1 stopLOT
28h 30mSOF-ORD
$688
9/27Fr
3 stops
21h 15mSOF-ORD
$697
7/13Sa
2 stops
23h 50mBOJ-ORD
$729
7/13Sa
1 stop
20h 25mBOJ-ORD
$731

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Last minute flights to Chicago

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights to Chicago that are departing in the next 10 days.
5/11Sa
multi-stopITA Airways
27h 10mSOF-ORD
5/14Di
multi-stopITA Airways
13h 05mORD-SOF
$664
5/8Mi
multi-stopAir Canada
22h 06mSOF-ORD
6/26Mi
multi-stopAir Canada
16h 20mORD-SOF
$688
5/8Mi
multi-stopUnited Airlines
34h 58mSOF-ORD
6/26Mi
multi-stopUnited Airlines
20h 55mORD-SOF
$695
5/11Sa
multi-stopAmerican Airlines
29h 20mSOF-ORD
5/14Di
multi-stopAmerican Airlines
59h 03mORD-SOF
$794
5/8Mi
multi-stop
13h 20mSOF-ORD
6/26Mi
multi-stop
12h 10mORD-SOF
$800
5/11Sa
multi-stopBritish Airways
25h 40mSOF-ORD
5/14Di
multi-stopBritish Airways
40h 08mORD-SOF
$902
5/11Sa
multi-stopAir Canada
22h 06mSOF-ORD
5/14Di
multi-stopAir Canada
17h 10mORD-SOF
$922
5/11Sa
multi-stop
29h 10mSOF-ORD
5/14Di
multi-stop
19h 25mORD-SOF
$1,464
5/11Sa
multi-stop
20h 32mSOF-MDW
5/14Di
multi-stop
20h 05mMDW-SOF
$1,995
5/11Sa
multi-stop
20h 32mSOF-MDW
5/14Di
multi-stop
16h 35mMDW-SOF
$2,213

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Flights to Chicago

Return flight deals:

Chicago - Bulgaria

Cabin classes: