$250 Find Cheap Flights from Chicago O'Hare Airport to Bulgaria

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 8/11. 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.
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1 adult, Economy

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Cheap Flights from O'Hare Intl to Bulgaria

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Sofia
Sofia1 stop$474
Varna
Varna1 stop$570
Burgas
Burgas1 stop$692
Sofia
Sofia1 stop$474
Varna
Varna1 stop$570
Burgas
Burgas1 stop$692

Book Cheap O'Hare Intl to Bulgaria Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from O'Hare Intl to Bulgaria that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from O'Hare Intl to Bulgaria

Mon, Aug 11 - Thu, Nov 20
Turkish Airlines Logo
11:45 pm - 2:45 pmORD-SOF
31h 00m1 stop
Turkish Airlines Logo
10:05 am - 6:25 pmSOF-ORD
16h 20m1 stop
$474Turkish Airlines
Find Deal
Mon, Aug 18 - Mon, Sep 8
Turkish Airlines Logo
11:45 pm - 8:35 amORD-SOF
24h 50m1 stop
Turkish Airlines Logo
3:35 pm - 10:00 pmSOF-ORD
14h 25m1 stop
$483Turkish Airlines
Find Deal
Mon, Sep 22 - Mon, Oct 6
SWISS Logo
7:05 pm - 10:05 amORD-SOF
31h 00m1 stop
SWISS Logo
3:30 pm - 3:55 pmSOF-ORD
32h 25m1 stop
$494SWISS
Find Deal
Mon, Sep 22 - Mon, Oct 6
Austrian Airlines Logo
12:50 pm - 11:40 amORD-SOF
14h 50m2 stops
Austrian Airlines Logo
6:55 pm - 1:20 pmSOF-ORD
26h 25m1 stop
$495Austrian Airlines
Find Deal
Tue, Sep 30 - Mon, Oct 6
British Airways Logo
9:15 pm - 8:40 pmORD-SOF
15h 25m1 stop
British Airways Logo
8:00 pm - 5:00 pmSOF-ORD
29h 00m1 stop
$504British Airways
Find Deal
Tue, Sep 30 - Mon, Oct 6
British Airways Logo
8:40 pm - 8:40 pmORD-SOF
16h 00m1 stop
British Airways Logo
8:00 pm - 3:55 pmSOF-ORD
27h 55m1 stop
$507British Airways
Find Deal
Tue, Sep 30 - Tue, Oct 14
Austrian Airlines Logo
12:55 pm - 3:20 pmORD-SOF
18h 25m2 stops
Austrian Airlines Logo
8:00 am - 1:20 pmSOF-ORD
13h 20m1 stop
$535Austrian Airlines
Find Deal
Mon, Sep 22 - Mon, Oct 6
SWISS Logo
7:05 pm - 12:00 pmORD-SOF
32h 55m2 stops
SWISS Logo
3:30 pm - 3:55 pmSOF-ORD
32h 25m1 stop
$538SWISS
Find Deal
Wed, Dec 3 - Sun, Dec 7
Lufthansa Logo
4:20 pm - 5:20 pmORD-VAR
17h 00m1 stop
Lufthansa Logo
5:40 pm - 1:10 pmVAR-ORD
27h 30m1 stop
$640Lufthansa
Find Deal
Thu, Jan 22 - Mon, Jan 26
Lufthansa Logo
9:50 pm - 3:15 pmORD-VAR
33h 25m2 stops
Lufthansa Logo
4:00 pm - 1:10 pmVAR-ORD
29h 10m2 stops
$676Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for O'Hare Intl to Bulgaria flights

Get data-powered insights and trends into flights from O'Hare Intl to Bulgaria to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Chicago O'Hare Intl Airport to Bulgaria?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago O'Hare Intl Airport to Bulgaria, 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 from Chicago O'Hare Intl Airport to Bulgaria is November, when tickets cost $578 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $1,166 and $1,054 respectively.

What’s the cheapest day of the week to fly from Chicago O'Hare Airport to Bulgaria?

The average price of all round-trip flights from Chicago O'Hare Intl Airport to Bulgaria clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Chicago O'Hare Airport to Bulgaria, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Bulgaria, Wednesday is the cheapest day to fly and Monday is the most expensive.

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Bulgaria?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago O'Hare Intl Airport to Bulgaria, 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 on the flight from Chicago O'Hare Intl Airport to Bulgaria, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.


Good to know

Low seasonJanuary
Cheapest flight$250
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 16% 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 from Chicago O'Hare Airport to Bulgaria 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 from Chicago O'Hare Airport to Bulgaria 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 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 from Chicago O'Hare Airport to Bulgaria up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Bulgaria?

    The cheapest time of day to fly to Bulgaria is generally in the morning, when round-trip flights cost $751 on average. Morning departures are around 29% cheaper than evening flights, on average. The most expensive time of day to fly to Bulgaria is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,107.

Reviews of the 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.
7.6
LOTOverall score based on 1105 reviews
8.2Crew
7.0Entertainment
7.6Boarding
7.5Comfort
7.2Food
Airline reviews

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

4.0 OkayHossam, Jul 2025JFK - WAW
Read more LOT reviews

The crew and flight were amazing . However , my bag’s locker got broken and no refund provided . Everything else was amazing except this bad incident that ruined my experience

The seats are small and the movie selection was disappointing. However, the food was excellent and the cabin crew was attentive and kind.

Bags lost no more to say, bad communication and no urgency to get it back to the hotel by the airline properly the worst airline I have used.

The customer service rep on chat refused carrying golf set at no charge that is customary for LOT and others. I wanted yo carry just ONE club not even full set! Web check in was nightmare. Most horrible lounge at warsaw. To call it business class is a BIG exaggeration. Rude staff warsaw to nyc. Seats uncomfortable and not flat as is now customary. Bad content and entertainment system.

Seats were so uncomfortable, my butt hurts so much, I wish they have more cushions,it really was horrible, Except that, Stewarts were polite food was decent

The 737 lacked business-class seating. It was basically economy plus but with the middle seats left unsold. There were no TV screens but good food and service.

Plane is super outdated, seats not that comfortable for business class. Lounge also out dated. They need to catch up to 2024. Don’t think I’d ever fly again.

Everything was good, flight was smooth and on time Like service

Boarding was impossible to navigate. Had mobility issues and a business class ticket, but still boarded almost at the end of the queue because there was absolutely no organization or assistance.

Aircraft was new. Food so so, especially vegetarian was very disappointing.

Austrian Airlines help and service was fine, but Kayak misled us into believing we had purchased a Business Class ticket. In fact, the tickets were only upgraded Coach Class tickets with luggage restrictions that belonged to the Coach Class. Very disappointed! Paid over $$$$ 9K for the two tickets. Very disappointing!

Quick and organized boarding process, friendly staff but not as many snacks and drinks as the previous flight overnight

Landing was a little hard. Food was not great My prior review was for the flight to nyc too

Five star experience all around except for my seat, which was broken. It would only go down 70%.Of the way. It defeats the purpose of buying a business class ticket if you don’t actually get to lay flat..

I love this airline.God bless CAO and the whole staff of this company

Great staff, efficient and knowledgeable. Very helpful with others and considerate towards those with children

WiFi would have been nice and some more powerful usb ports, available ports could not keep my phone’s charge much less charge the phone.

Not so good. I paid for a preference economic seat, and I couldn’t incline it back because it was blocked. They explained me that because is the last before emergency exit. The company new that but it was not explained in the seat selection

It was on time. Snacks could have been provided for free.

Business class old style from 10 years ago. Ok for short flights but nor for 12 hours journey. The passenger near the window have to jump over the passenger seat aisle side or wake him up to upright the seat. That’s not the business class that you expect on long night flight. Seats are not so confortable. And believe it or not no wifi!

It was delayed instead of departing at 9:20pm, we departed at 11pm… putting us in Columbus after 2am! It was awful. Had I known about the delay, I could have spent some time in the United Lounge… I was starving because I started my journey in Budapest… so I was exhausted and hungry. Plus I had to make new arrangements to be picked up at the airport in Columbus, instead of midnight it was 2:30 am after getting luggage and out of airport. Not feasible. I would have just stayed in Chicago for the night and gotten a morning flight.

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

This is really the rating of two flights. JFK to IST then IST to NQZ. New York to Istanbul was good. Good crew and all positives. The flight to Astana was so bad that brought it all down. Crew was nonexistent above the minimum, seats were cramped, and it was hot on the plane. Turkish Airlines seems to be slipping down to US based carriers level.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

Everything was very good, except that the plane was an hour and a half late

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

Light and recline did not work on my seat. Very uncomfortable and could not read in the dark

Bad experience; they are not good anymore. They charge too much for luggage seat are so uncomfortable, Flight delays which may miss your next flight, they don’t care if you miss the flight or not. Zero customer services for front desk representatives Istanbul's airport I’m not using this airline any more.

I’ve been traveling for 20 years. I tried Turkish airline for the first time horrible horrible service and it would be my last time even if I get offer for a free ticket, I will not accept it. They have races and the worst Flight attendant

It wasn't good. I didn’t understand. They changed 320 dollars for 2 luggage. My ticket was regular and I paid almost 1200.00 dollars. Why they did charge? I want my money back.. thanks Yılmaz polat

Very punctual, the onboard staff was friendly and correct, the flight was fortunately very calm, the toilets were clean, in short, an excellent experience Thanks

Insulting. Lufthansa flight from Munich to EWR had us getting our luggage when we were told in Florence that it would follow us to Indianapolis. It did not. Then very slow security in EWR caused me and three other passengers from Lufthansa flight from Munich to miss the boarding closure. Behind me were two elderly grandparents and their ten year old grandson. We were all refused entry on a plane to Indy that was still at the gate. The doors had not even closed inside the terminal yet. No apologies or compensation offered. Not even a meal voucher let alone a free hotel stay for our inconvenience. I m not sure what the other three passengers behind me did ( they were elderly with a grandson, recall), but I stated 12 hours overnight in a chilly EWR airport until next flight to Indy at 850 next morning.

The food could be better, more snacks. And have some plugs to chargue the phone.

The pasta in the evening meal was tasteless. Otherwise, the flight was okay.

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Seating was average for a first class seat. It very modern. I expected better.

Flight was a little late. The crew was courteous, food ok

Bad! Disaster!! The LH419 was cancelled after 4 hrs on board with no AC and no toilets

Poor food on flight between Toronto and Stockholm Airport Toronto too crowded

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Everything you need to know for your flight from O'Hare Intl to Bulgaria

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