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$415+ Cheap flights from Sofia (SOF) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
Nov 5 — Nov 121
1 adult
Tue 11/5
Tue 11/12
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The best prices from Sofia to Chicago are usually found in February or April, booked 77 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Sofia to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 31, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

February

Round-trip from

$571
(KLM)

One-way from

$415
(Kiwi.com)
Provider with most accurate pricing for Sofia-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sofia-Chicago (CHI) flights.
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 15% potential price drop
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From Sofia to Chicago (CHI)
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One-way flight from Sofia to Chicago (CHI)
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Find flight deals from Sofia to Chicago

Cheapest flights from Sofia to Chicago
Explore the most affordable flight options available from Sofia to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 31, 2024.

This KLM deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/157:00 amSOF - ORD
2 stops18h 46mMultiple Airlines
Sat 11/305:20 pmORD - SOF
1 stop12h 35mMultiple Airlines
Deal found 10/30$571
This KLM deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:00 amSOF - ORD
2 stops20h 48mKLM
Sat 1/2512:30 pmORD - SOF
2 stops17h 35mKLM
Deal found 10/30$574
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/216:35 pmSOF - ORD
2 stops57h 15mLOT
Mon 1/139:55 pmORD - SOF
1 stop11h 55mLOT
Deal found 10/30$606
This Air France deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/165:00 amSOF - ORD
2 stops18h 05mAir France
Mon 12/25:20 pmORD - SOF
2 stops14h 10mAir France
Deal found 10/31$609
This Air Canada deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:00 amSOF - ORD
2 stops16h 45mAir Canada
Tue 6/310:55 amORD - SOF
2 stops16h 25mAir Canada
Deal found 10/30$627
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/176:00 amSOF - ORD
2 stops18h 30mUnited Airlines
Tue 1/146:00 pmORD - SOF
1 stop20h 45mUnited Airlines
Deal found 10/30$632
This Lufthansa deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/152:05 pmSOF - ORD
1 stop14h 00mLufthansa
Sun 11/246:30 pmORD - SOF
2 stops15h 40mLufthansa
Deal found 10/31$657
This Expedia deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/158:15 pmSOF - ORD
2 stops31h 03mBritish Airways
Sun 11/248:20 pmORD - SOF
2 stops36h 50mBritish Airways
Deal found 10/31$676
This FlightHub deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1910:00 amSOF - ORD
1 stop16h 25mTurkish Airlines
Sun 1/1211:55 amORD - SOF
1 stop13h 15mTurkish Airlines
Deal found 10/30$680
This Aeromexico deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:10 amSOF - MDW
2 stops22h 36mAir France
Sat 1/115:00 pmMDW - SOF
2 stops36h 55mAir France
Deal found 10/30$755
This KLM deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/167:00 amSOF - MDW
2 stops19h 32mKLM
Mon 12/21:30 pmMDW - SOF
2 stops16h 35mKLM
Deal found 10/31$765
This Austrian Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/226:45 pmSOF - ORD
1 stop27h 20mAustrian Airlines
Wed 1/154:20 pmORD - SOF
1 stop11h 30mAustrian Airlines
Deal found 10/30$783

Find flights from Sofia to Chicago within your budget

Customize your flight search to find flights from Sofia to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 1/5

10:00 am-10:10 am

1 stop32h 10m

$921

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 1/3

6:05 am-7:45 am

2 stops33h 40m

$930

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 1/3

5:00 am-8:00 pm

3 stops23h 00m

$1,006

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 1/5

6:45 pm-12:15 pm

2 stops49h 30m

$1,123

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 11/15

7:00 am-5:46 pm

2 stops18h 46m

Chicago O'Hare Intl

Sat 11/30

5:20 pm-1:55 pm

1 stop12h 35m

$571

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 12/5

7:00 am-7:48 pm

2 stops20h 48m

Chicago O'Hare Intl

Sat 1/25

12:30 pm-2:05 pm

2 stops17h 35m

$574

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 12/21

6:35 pm-7:50 pm

2 stops57h 15m

Chicago O'Hare Intl

Mon 1/13

9:55 pm-5:50 pm

1 stop11h 55m

$606

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

5:00 am-3:05 pm

2 stops18h 05m

Chicago O'Hare Intl

Mon 12/2

5:20 pm-3:30 pm

2 stops14h 10m

$609

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 1/18

6:00 am-11:05 am

1 stop13h 05m

Chicago O'Hare Intl

Sat 2/1

6:00 pm-10:45 pm

1 stop20h 45m

$626

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 12/3

6:00 am-2:45 pm

2 stops16h 45m

Chicago O'Hare Intl

Tue 6/3

10:55 am-11:20 am

2 stops16h 25m

$627

Flights are sorted by cheapest first

Deals found on 10/30

Showing 1-10 of 18 results
1
2

Compare providers for flights from Sofia to Chicago

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to Chicago in October.
ProviderPrice AccuracyTrust Score*Cancellation Policy
eDreamsPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
ExpediaPrice Accuracy1 starTrust Score*3 starsCancellation PolicyAirline Policy
FlightHubPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
AranGrantPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy
oojoPrice Accuracy3 starsTrust Score*3 starsCancellation PolicyAirline Policy

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Sofia-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sofia-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Sofia to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Sofia with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Sofia to Chicago

Get recent, data-driven insights about flights from Sofia to Chicago including ideal travel times, pricing trends, and more.

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

Use this chart to determine the optimal time to book a round-trip flight from Sofia to Chicago. Price data was last updated on October 25, 2024.

The best time to book flights from Sofia to Chicago is 77 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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What is the cheapest month to book a flight from Sofia to Chicago?

Currently, September is the cheapest month in which you can book a flight from Sofia to Chicago (average of $232). Flying from Sofia to Chicago in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SOF to CHI?

Find hourly flight availability from Sofia to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 31, 2024.

A simple way to save on the total cost of your ticket is to fly from Sofia to Chicago in the afternoon. If you’re flexible enough to do this you can expect to save up to 18% on your trip compared to booking a flight in the evening.

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

Use this chart to determine the cheapest time to fly round-trip from Sofia to Chicago. Price data was last updated on June 30, 2024.

Travelers seeking maximum savings on their Sofia to Chicago flight should consider departing on Monday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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Rainfall in Chicago by month

Plan your trip to Chicago by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago when rainfall is around 1.7 in.

Temperature in Chicago by month

Plan your trip to Chicago by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Chicago

Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated October 31, 2024.
Read through reviews of airlines operating flights from Sofia to Chicago, such as KLM and Air France. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

KLM
7.8
Good
1,352 reviews
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Austrian Airlines
7.7
Good
829 reviews
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

SWISS
7.6
Good
1,644 reviews
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

LOT
7.6
Good
1,202 reviews
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Qatar Airways
7.5
Good
3,900 reviews
KLM
7.8
Good
1,352 reviews

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Boarding

7.9

Reviews

1 / 10

Liked the service, seating was ok but the seat supports where in a way that one couldn’t stretch your legs

Related info for your journey

Find useful and relevant information for your journey from Sofia to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sofia to Chicago?

    Most people fly from Sofia (SOF) if they book a flight from Sofia to Chicago. On average, Sofia has 0 outbound flights to Chicago per day from 8 airlines. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

  • Can I find flights from Sofia to Chicago for under $600 on Cheapflights?

    Yes, there are multiple flights from Sofia to Chicago for under $600. The cheapest flight booked recently is on Multiple Airlines for just $571, but on average you can expect to pay $719.

  • What are the cheapest airlines flying from Sofia to Chicago round-trip?

    Currently priced at $574, KLM will fly you from Sofia to Chicago and back. In addition to KLM, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from LOT and Air France - these airlines can fly you to your destination from $606 and $609, respectively. KLM is priced at 17% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Sofia to Chicago one-way?

    One-way options have recently been found by users for as low as $501 on Air Serbia. Other airlines that offer cheap prices include Qatar Airways from $571 and British Airways from $589 one-way.

  • What does SOF to ORD mean?

    Great question - SOF to ORD just means Sofia Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD).

  • Can I find deals for flights from Sofia to Chicago that include extra baggage allowance?

    The amount of baggage you can bring on your Sofia to Chicago flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Sofia to Chicago with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sofia to Chicago flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Sofia to Chicago that include hotel bookings?

    Yes. In addition to deals on Sofia to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Chicago.

  • Can I find deals for business class flights from Sofia to Chicago?

    Yes. Cheapflights offers flight deals from Sofia to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Sofia to Chicago that allow pets onboard?

    Many airlines flying from Sofia to Chicago offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Sofia to Chicago?

    Yes, you can often find last-minute deals on Sofia to Chicago flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Sofia to Chicago flight deals updated?

    The Sofia to Chicago flight deals you see on this page were last updated on 10/31.

  • What is the cheapest month to book a flight from Sofia to Chicago?

    Currently, September is the cheapest month in which you can book a flight from Sofia to Chicago (average of $232). Flying from Sofia to Chicago in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Sofia to Chicago

See prices for flight routes from nearby airports that may be better suited for you.
Sofia to O'Hare Intl flights
Sofia to Midway flights

Top 8 airlines flying from Sofia to Chicago

Discover the top 8 airlines that operate flights from Sofia to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,570,725 searches. Data last updated October 31, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$485Average$833FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$503Average$731FlexibilityNo cancel feeOn-time78%
LOTCheapest$536Average$622FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$551Average$795FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$603Average$798FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$622Average$771FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$631Average$688FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$652Average$720FlexibilityNo cancel feeOn-time77%
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