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Find cheap flights from Chicago O'Hare Airport to Bulgaria from $329

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from O'Hare Intl to Bulgaria departing on 5/7. 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
dom. 5/26
dom. 6/2

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Best Bulgaria Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Sofia
Sofia1 stop$599
Varna
Varna2 stops$730

Good to know

Low season

February

High season

June

Cheapest flight

$329
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 54% increase in price.
Flight from Chicago O'Hare Airport to Sofia

FAQs - booking Bulgaria flights

  • How does KAYAK find such low prices on flights from Chicago O'Hare Airport to Bulgaria?

    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 from Chicago O'Hare Airport to Bulgaria.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago O'Hare Airport to Bulgaria?

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

  • What is the Hacker Fare option on flights from Chicago O'Hare Airport to Bulgaria?

    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 Bulgaria with an airline and back to Chicago O'Hare Airport with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago O'Hare Airport to Bulgaria?

    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 Bulgaria from Chicago O'Hare Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Bulgaria

  • Morning departure is around 11% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from O'Hare Intl to Bulgaria

 
Need help choosing which airline to fly with from O'Hare Intl to Bulgaria? 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.
7.5
Austrian AirlinesOverall score based on 1085 reviews
7.6boarding
8.1crew
7.4comfort
6.9entertainment
6.9food
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.

The crew was attentive but not intrusive, and was always kind in every interaction.

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

the flight was canceled, and I had to stay more than six days at hotel . waiting . then I had to buy new ticket. really it was very bad experience, and I lost a lot of money and time , and your airline said sorry

Management and staff att viena wasn’t professional,and they are not good by how to communicate and solve the problem, I was shocked , as I know Austrian airlines was amusing Thank you

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.

There were a number of passengers scheduled to transfer to the flight from Vienna to Warsaw. None of them made it because the crew failed to assist them in getting to the gate for the Warsaw bound flight in time. It could have been done very easily with proper assistance.

Nothing really was great as such. Seen other no name airlines perform better.

Quality of service on board was very inconsistent. FA service primarily seemed robotic and they barely engaged with passengers

I’m unclear why I had to pay extra for assigned seats as Turkish airlines did not honor the seating. We were placed across the aisle from each other on TK 34, and were seated behind one another on TK 694. Because my name was misspelled on e-ticket (Klawiter, instead of Klawitter) I could not log onto website to get the connection gate number in Istanbul. The monitors in the airport were a jumbled mess 1/2 Arabic and 1/2 English.

On line check in needs a lot of improvement. I tried and gave up.

Food not good, flight attendants not the best, not accommodating very ruff

the female flight attendant was racist towards me. I could tell she treated the two other passengers next to me with more softness.

Oh my god! For an13 hour flight they serve you food just one time. Also don’t be thirsty they give you a little small cup of soda to drink. They seem like their goal is to feed you one so they don’t have to be bothered with you. It quite surprise for such a long flight there are several times to eat at least three and the food was well lackluster. The food and lack of offering drinks which were always hot no ice provided.

We were traveling first class. Checkin counter lady and her manager, both were in bad mood and did not treat us well about checking in the handbag. The gate agent took care of it right away. I travel Turkish twice a year in first class. No one has ever refused to check in the hand bag. Not sure, why this agent and her manager refused. Everything else was excellent.

The 787 economy was a disaster for long haul. The space was too little compared to 777 or 747. Also the extremely low tray table behind the seat made any dining effort a nightmare. However, the movies were up to date, and the food taste was good, despite of terrible serving process caused by small space.

A little bit more comfort. It’s tight space around the seats. But all else is great and a smooth flight!

Last minute gate change nearly caused us to miss our flight. Change was not announced or displayed in the main board at the old gate. Terrible communication. When we landed we had to wait 20 minutes because there was another plane at the assigned gate. Not the crew’s fault, but adding 20 minutes to a 45 minute flight sucked.

Nothing beats ANA customer service on my opinion. Maybe because of their Japanese culture (and food). Arigatō

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

Flight delayed for 2 hours due to a part. The plane sat waiting for boarding for a long time and during final preflight inspection the issue was found. Why not do the preflight inspection sooner if you know the plane is being used?

The flight experience was very good! Especially the United Club!

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

Aircraft has better leg room than any of United's larger planes. We had requested mobility assistance for this and related flights. United's response to all was superb.

The flight from Ottawa to Chicago took a lot longer due to DC in Ottawa. We got to Chicago and went to our gate to catch our flight. We only had nine minutes I found that very stressful.

Good boarding. Crew started quick with drinks and food. They came around several times for trash which I really liked. Other than turbulence due to storms in the area, flight was great.

my seat got changed twice after checking on then boarding it had been given to a family so by the time they found a seat for me no overhead storage left. i ended up losing my Sony Headphones case because i could even access underthe seat in front of my when deplaning.

All good! But sandwiches for breakfast need to be warm!!!!! Not cold!!! You do not want anything cold in your stomach in the morning!… think about it!

The flight was very bad, the food and the staff was very rude. My last time with them

LOT airlines wasn't the best. They had trouble with boarding and they didn't have my information on file the right way. They change last minute details without us knowing and everything was a HOT MESS. Lot airlines also lost my baggae which was the carseat and haven't responded to any of my emails.

Garbage airline at a premium price. Both ways was unable to purchase seats before checking. Called, messaged on Facebook, and emailed. All three times staff said I could, and gave me form responses on how to, despite providing screenshots/explaining beforehand showing I couldn't. At check-in both times they sat me and my wife separately, despite booking together. Both legs the USB port in my entertainment system was broken. Food is atrocious. Seats are old and uncomfortable, and struggle to adjust. Toilets were like portapotties at a concert.

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

My flight was cancelled and I went through hell to get it fixed, with no help from the website I booked it on. My reservation was cancelled AGAIN by the site I booked on without my knowledge a week later. The flight itself that I finally got on was awful. Drunk man belligerent the entire flight, I don't understand how he was allowed on the flight.

Lot still has not refunded me after they cancelled my flight to India!! Kayak had been awful at getting me this refund too. Will NEVER be using kayak or LOT again.

Tv screen not working. Food in business class was cold & not available

The customer service and the flight experience were very good!

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

Disappointed everytime. The app doesn't load the boarding passes. They have lots of agent that seem to be busy doing nothing with a long line waiting to get paper boarding passes. Food choices are poor. Entertainment is less than entertaining.

Horrible experience. Nothing to give to kids to keep them entertained.

I think I have bruises on my kneecaps. Do the seats have to be so close together these days? And if they are so close they really shouldn’t recline. I think when the gentleman in front of me reclined, the back of his head was on my chin. That being said the crew were always caring and polite, and the flight was on time and very safe. So I’m grateful for that.

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

Trouble keeps changing the time and I was booked different flight without knowing it was bad experience

I dropped my wallet under my seat on this flight with all of my money and credit card. I requested to be able to go back and retrieve it but Lufthansa denied my request. I went to the Customer Services and they called Lost and Found but I was told nothing found would be turned in until around 12:00pm. My next flight was leaving so I was unable to check to see if my wallet was turned in. I will never fly with Lufthansa again.

My concern is with Flight: 441 IAH-FRA I was very cramped in my seat and the person in front of me was reclined. I pulled my wallet out of my purse and when finished I did my best to cram it back into my purse. Our flight was very delayed and we were rebooked twice and lots of airport time. As I got off the flight I noticed that I had dropped my wallet( containing all my credit & debit bank cards + 240 US dollars & 240 Euros. I spoke to customer service & Lost &Found. I was denied access to look on the plane. Therefore I have been without money and given no help. Paula Bjork 503.545.6698

Dinner was good by air travel standards but breakfast was too light and heavy on carbs/sugar.

Used to love Lufthansa, but Rowe are too close together in Economy and passengers are allowed to recline their seats so far back it is impossible for those behind them to even reach for carry-on essentials during flight - except for meal service when flight attendants ask for seat backs to be raised, we can’t sleep on planes so this flight was most uncomfortable ever! Rod Rose

So far so good. I missed my flight because of the Lufthansa diversion. United helped me to figure out how to get accommodations from Lufthansa for my long layover. They help me book appropriate onward flight.

Book cheap flights from Chicago to Bulgaria

Recent round-trip flight deals

10/1mar.
1 stopTurkish Airlines
28h 00mORD-SOF
10/15mar.
1 stopTurkish Airlines
20h 30mSOF-ORD
$599
10/16mié.
1 stopTurkish Airlines
13h 05mORD-SOF
10/29mar.
1 stopTurkish Airlines
20h 20mSOF-ORD
$601
7/13sáb.
1 stopUnited Airlines
20h 00mORD-SOF
11/8vie.
1 stopUnited Airlines
21h 40mSOF-ORD
$695
7/13sáb.
1 stopUnited Airlines
12h 10mORD-SOF
11/6mié.
2 stopsUnited Airlines
23h 49mSOF-ORD
$702
8/19lun.
1 stopLufthansa
12h 35mORD-SOF
9/19jue.
1 stopLufthansa
14h 30mSOF-ORD
$719
8/19lun.
1 stopLufthansa
12h 35mORD-SOF
9/19jue.
1 stopLufthansa
14h 30mSOF-ORD
$720
8/19lun.
2 stopsAustrian Airlines
21h 01mORD-SOF
9/19jue.
1 stopAustrian Airlines
26h 35mSOF-ORD
$721
5/6lun.
1 stopAustrian Airlines
15h 00mORD-SOF
10/3jue.
1 stopAustrian Airlines
13h 20mSOF-ORD
$725
9/6vie.
2 stopsLOT
16h 45mORD-SOF
9/28sáb.
1 stopLOT
28h 30mSOF-ORD
$740
9/6vie.
1 stopLOT
32h 15mORD-SOF
9/28sáb.
1 stopLOT
28h 30mSOF-ORD
$757

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Recent one-way flight deals

5/7mar.
2 stops
27h 29mORD-SOF
$329
8/21mié.
2 stops
53h 50mORD-SOF
$336
5/8mié.
2 stops
45h 40mORD-SOF
$377
7/9mar.
1 stopTurkish Airlines
13h 15mORD-VAR
$575
9/16lun.
1 stopLOT
12h 15mORD-SOF
$599
8/15jue.
1 stopTurkish Airlines
13h 05mORD-SOF
$600
7/18jue.
2 stopsLOT
40h 45mORD-SOF
$612
5/6lun.
1 stopLufthansa
13h 20mORD-SOF
$645
5/5dom.
1 stopLufthansa
12h 35mORD-SOF
$659
6/3lun.
2 stopsUnited Airlines
19h 00mORD-SOF
$1,060

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Last minute flights from O'Hare Intl to Bulgaria

Last minute flight, train and bus deals

4/30mar.
multi-stopITA Airways
13h 05mORD-SOF
5/12dom.
multi-stopITA Airways
27h 10mSOF-ORD
$599
4/30mar.
multi-stopITA Airways
13h 05mORD-SOF
5/16jue.
multi-stopITA Airways
27h 10mSOF-ORD
$629
4/30mar.
multi-stopLufthansa
13h 20mORD-SOF
10/8mar.
multi-stopLufthansa
14h 15mSOF-ORD
$721
5/1mié.
multi-stopAustrian Airlines
17h 40mORD-SOF
5/8mié.
multi-stopAustrian Airlines
13h 20mSOF-ORD
$724
4/30mar.
multi-stopUnited Airlines
20h 55mORD-SOF
5/16jue.
multi-stopUnited Airlines
13h 20mSOF-ORD
$726
4/29lun.
multi-stopAustrian Airlines
14h 55mORD-VAR
10/6dom.
multi-stopAustrian Airlines
29h 20mVAR-ORD
$727
4/30mar.
multi-stopLufthansa
13h 20mORD-SOF
10/10jue.
multi-stopLufthansa
24h 45mSOF-ORD
$730
5/1mié.
multi-stopUnited Airlines
16h 25mORD-SOF
10/7lun.
multi-stopUnited Airlines
14h 15mSOF-ORD
$734
5/1mié.
multi-stopTurkish Airlines
22h 10mORD-VAR
10/8mar.
multi-stopTurkish Airlines
16h 15mVAR-ORD
$1,062
4/29lun.
multi-stopTurkish Airlines
28h 10mORD-VAR
11/4lun.
multi-stopTurkish Airlines
21h 30mVAR-ORD
$1,089

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Chicago O'Hare Airport - Bulgaria Flights

Departure:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Bulgaria - Chicago O'Hare Airport

Cabin classes: