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SOF - CHI

Find cheap flights from Sofia to Chicago from $303

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sofia to Chicago departing on 5/20. 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
Mon 6/10
Mon 6/17

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Chicago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sofia to Chicago.
In the last 7 days travelers have searched 43,156,178 times on KAYAK, and here is why:

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Cheap flight deals from Sofia to Chicago (SOF-CHI)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sofia to Chicago 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 and deals for you by selecting your travel dates.
Choose your dates
9:20 pm - 10:45 amSOF-ORD
21h 25m1 stop
4:45 pm - 7:00 pmORD-SOF
18h 15m1 stop
$554British Airways
Find Deal
Thu, Jun 6 - Fri, Jul 5
9:20 pm - 4:05 pmSOF-ORD
26h 45m2 stops
4:45 pm - 7:00 pmORD-SOF
18h 15m1 stop
$560British Airways
Find Deal
Thu, Jun 6 - Fri, Jul 5
6:30 am - 10:02 pmSOF-ORD
23h 32m2 stops
5:55 pm - 10:35 pmORD-SOF
20h 40m2 stops
$640United Airlines
Find Deal
Thu, Jun 6 - Thu, Jun 20
6:30 am - 12:55 pmSOF-ORD
14h 25m1 stop
5:55 pm - 10:35 pmORD-SOF
20h 40m2 stops
$645United Airlines
Find Deal
Thu, Jun 6 - Thu, Jun 20
6:40 pm - 3:10 pmSOF-ORD
28h 30m2 stops
9:55 pm - 1:50 pmORD-SOF
31h 55m1 stop
$652LOT
Find Deal
Thu, Sep 5 - Thu, Dec 5
2:05 pm - 7:55 pmSOF-ORD
13h 50m1 stop
6:35 pm - 10:35 pmORD-SOF
20h 00m1 stop
$655Lufthansa
Find Deal
Thu, Jun 6 - Thu, Jun 20
6:40 pm - 3:10 pmSOF-ORD
28h 30m2 stops
5:10 pm - 5:55 pmORD-SOF
16h 45m1 stop
$693LOT
Find Deal
Thu, Sep 5 - Mon, Sep 9
9:20 am - 5:45 pmSOF-ORD
16h 25m1 stop
8:20 pm - 8:50 pmORD-SOF
16h 30m1 stop
$727Turkish Airlines
Find Deal
Sat, Aug 3 - Sat, Feb 15
12:00 pm - 12:50 pmSOF-ORD
32h 50m2 stops
9:30 pm - 11:20 amORD-SOF
29h 50m2 stops
$777Lufthansa
Find Deal
Sat, Jun 22 - Fri, Jul 5
3:45 pm - 9:40 amSOF-ORD
25h 55m1 stop
8:30 pm - 8:30 amORD-SOF
28h 00m1 stop
$786Turkish Airlines
Find Deal
Fri, Jun 7 - Fri, Jun 14

Flights from Sofia to Chicago - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Sofia to Chicago?

The average price of all flights from Sofia to Chicago clicked on KAYAK for each day over the last 12 months.
For Sofia to Chicago, Friday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Chicago back to Sofia, the best deals are generally found on Thursday, with Saturday being the most expensive.

What is the cheapest month to fly from Sofia to Chicago?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Sofia 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 from Sofia to Chicago is February, where tickets cost $586 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $799 and $761 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Sofia 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 on the flight from Sofia to Chicago, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 68 days before departure.

Which airlines provide the cheapest flights from Sofia to Chicago?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Sofia to Chicago found by KAYAK users in the last 72 hours was for $554 on British Airways, followed by ITA Airways ($624). One-way flight deals have also been found from as low as $603 on British Airways and from $618 on Qatar Airways.

Good to know

Low season

January

High season

June

Cheapest flight

$303
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly with an average 3% increase in price.
Flight from Sofia to Chicago O'Hare Airport

When to book flights from Sofia to Chicago

Are your dates flexible? Find out the best times to travel from Sofia to Chicago based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Sofia to Chicago

  • What is the cheapest flight from Sofia to Chicago?

    In the last 3 days, the lowest price for a flight from Sofia to Chicago was $303 for a one-way ticket and $554 for a round-trip.

  • Do I need a passport to fly between Sofia and Chicago?

    A passport is required to fly from Sofia to Chicago.

  • Which aircraft models fly most regularly from Sofia to Chicago?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Sofia to Chicago?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Sofia and Chicago, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Sofia to Chicago, Austrian Airlines or Turkish Airlines?

    The two airlines most popular with KAYAK users for flights from Sofia to Chicago are Austrian Airlines and Turkish Airlines. With an average price for the route of $922 and an overall rating of 7.6, Austrian Airlines is the most popular choice. Turkish Airlines is also a great choice for the route, with an average price of $727 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Sofia 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 from Sofia to Chicago.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from Sofia 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 Sofia 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 to Sofia with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sofia 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 from Sofia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 5 airlines serving from Sofia to Chicago

 
See real verified KAYAK customer reviews for airlines flying from Sofia to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sofia 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 1060 reviews
6.9Food
7.6Boarding
6.9Entertainment
7.4Comfort
8.1Crew
Airline reviews

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

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

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

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 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.

It becomes like Wizz air, no good, bad comfort and you should pay for 20kg bag.

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!

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.

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 seats were very comfortable. The plane was clean and the crew was very friendly."
Pros: "The crew was very profesional . Our fly was safe and on time."
Cons: "Maybe variety of good movie could be better ."

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.

All flights cancelled with no way to reach the airline

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.

Flight landed on time but land services kept us in the plane for 3 hours. I missed connecting flight.

Book cheap flights from Sofia to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Sofia to Chicago found on KAYAK in the last 72 hours.
5/20Mon
3 stops
44h 24mSOF-ORD
$303
5/18Sat
2 stops
30h 29mSOF-ORD
$352
5/20Mon
2 stops
46h 39mSOF-ORD
$365
5/18Sat
3 stops
46h 39mSOF-ORD
$371
5/19Sun
3 stops
59h 54mSOF-ORD
$384
6/11Tue
1 stopBritish Airways
24h 30mSOF-ORD
$603
6/11Tue
2 stopsBritish Airways
28h 16mSOF-ORD
$612
5/19Sun
1 stopQatar Airways
33h 50mSOF-ORD
$618
5/20Mon
1 stopQatar Airways
33h 50mSOF-ORD
$630
5/18Sat
1 stopUnited Airlines
13h 20mSOF-ORD
$684

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Last minute flights from Sofia 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 from Sofia to Chicago that are departing in the next 10 days.
5/14Tue
multi-stopUnited Airlines
27h 47mSOF-ORD
8/15Thu
multi-stopUnited Airlines
21h 17mORD-SOF
$739
5/14Tue
multi-stopUnited Airlines
27h 47mSOF-ORD
8/15Thu
multi-stopUnited Airlines
20h 55mORD-SOF
$767
5/14Tue
multi-stopLufthansa
15h 55mSOF-ORD
8/15Thu
multi-stopLufthansa
15h 30mORD-SOF
$796

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Sofia - Chicago Flights

Departure:

Sofia (undefined)Bulgaria

Return flight deals:

Chicago - Sofia

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