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$416+ 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Sofia to Chicago are usually found in February or April, booked 46 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 November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

February

Round-trip from

$562
(FlightHub)

One-way from

$416
(Booking.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, 16% 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 November 20, 2024.

This American Airlines deal was found by Cheapflights users on 11/19. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/36:05 pmSOF - ORD
1 stop27h 50mAmerican Airlines
Mon 12/93:00 pmORD - SOF
2 stops18h 10mAmerican Airlines
Deal found 11/19$593
This Cheapflightsfares deal was found by Cheapflights users on 11/19. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/51:45 pmSOF - ORD
1 stop12h 40mMultiple Airlines
Sat 1/114:20 pmORD - SOF
1 stop11h 30mMultiple Airlines
Deal found 11/19$603
This Gotogate deal was found by Cheapflights users on 11/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/46:05 amSOF - ORD
1 stop20h 20mLufthansa
Sat 3/2911:35 pmORD - SOF
1 stop15h 00mLufthansa
Deal found 11/19$609
This Air France deal was found by Cheapflights users on 11/19. 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.
Thu 12/57:10 amSOF - ORD
1 stop15h 55mAir France
Sat 1/1110:05 amORD - SOF
2 stops19h 50mAir France
Deal found 11/19$618
This United Airlines deal was found by Cheapflights users on 11/19. 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.
Wed 12/46:05 amSOF - ORD
1 stop16h 05mUnited Airlines
Sat 3/2911:35 amORD - SOF
2 stops27h 00mUnited Airlines
Deal found 11/19$628
This Air Canada deal was found by Cheapflights users on 11/19. 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.
Wed 12/46:05 amSOF - ORD
2 stops21h 27mAir Canada
Sat 3/2911:35 amORD - SOF
2 stops17h 35mAir Canada
Deal found 11/19$632
This Air France deal was found by Cheapflights users on 11/19. 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.
Thu 12/57:10 amSOF - MDW
2 stops22h 36mAir France
Sat 1/1111:19 amMDW - SOF
2 stops18h 36mAir France
Deal found 11/19$640
This KLM deal was found by Cheapflights users on 11/19. 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.
Wed 12/47:00 amSOF - MDW
2 stops19h 32mKLM
Sat 3/291:00 pmMDW - SOF
2 stops17h 00mKLM
Deal found 11/19$644
This KLM deal was found by Cheapflights users on 11/19. 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.
Mon 11/257:00 amSOF - ORD
2 stops18h 46mKLM
Mon 12/94:25 pmORD - SOF
1 stop13h 40mKLM
Deal found 11/19$704
This FlightHub deal was found by Cheapflights users on 11/19. 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.
Wed 11/206:35 pmSOF - ORD
1 stop33h 25mLOT
Sat 11/239:55 pmORD - SOF
1 stop11h 55mLOT
Deal found 11/19$884
This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/198:00 amSOF - MDW
3 stops35h 10mMultiple Airlines
Thu 1/25:35 pmMDW - SOF
3 stops35h 25mMultiple Airlines
Deal found 11/20$1,768

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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 2/22

6:35 pm-8:00 pm

1 stop33h 25m

Chicago O'Hare Intl

Sat 3/8

9:55 pm-1:50 pm

1 stop31h 55m

$562

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 3/8

12:05 pm-6:45 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 3/29

6:00 pm-7:05 pm

1 stop18h 05m

$590

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 12/3

6:05 pm-1:55 pm

1 stop27h 50m

Chicago O'Hare Intl

Mon 12/9

3:00 pm-5:10 pm

2 stops18h 10m

$593

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 3/8

12:05 pm-6:45 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 3/29

6:20 pm-7:05 pm

2 stops17h 45m

$606

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 12/4

6:05 am-6:25 pm

1 stop20h 20m

Chicago O'Hare Intl

Sat 3/29

11:35 pm-10:35 pm

1 stop15h 00m

$609

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 1/16

6:10 am-8:05 am

2 stops33h 55m

Chicago O'Hare Intl

Wed 1/29

9:25 pm-6:10 pm

1 stop12h 45m

$618

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Thu 1/16

7:00 am-6:14 pm

2 stops19h 14m

Chicago Midway

Wed 1/29

2:08 pm-2:05 pm

2 stops15h 57m

$622

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 12/5

7:10 am-11:59 pm

2 stops24h 49m

Chicago O'Hare Intl

Sat 1/11

11:50 am-1:55 pm

2 stops18h 05m

$624

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 12/4

6:05 am-7:32 pm

2 stops21h 27m

Chicago O'Hare Intl

Sat 3/29

11:35 am-12:10 pm

2 stops17h 35m

$632

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 1/13

7:00 am-5:50 pm

2 stops18h 50m

Chicago O'Hare Intl

Mon 1/27

1:40 pm-2:05 pm

2 stops16h 25m

$633

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 26 results
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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 November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars

*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 November 15, 2024.

The best time to book flights from Sofia to Chicago is 46 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.

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 November 20, 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 Wednesday 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.

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 November 20, 2024.
Read through reviews of airlines operating flights from Sofia to Chicago, such as KLM, Lufthansa and Air France. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

KLM
7.8
Good
1,350 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

LOT
7.6
Good
1,165 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Austrian Airlines
7.6
Good
805 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

SWISS
7.6
Good
1,637 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

Air France
7.4
Good
1,523 reviews
KLM
7.8
Good
1,350 reviews

Entertainment

7.2

Food

7.3

Overall

7.8

Comfort

7.7

Crew

8.4

Boarding

7.9

Reviews

1 / 10

Flight performed by El Al. The aircraft was dirty. Gum in front pcket. Poorly maintained.

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.

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

    Currently priced at $562, LOT will fly you from Sofia to Chicago and back. In addition to LOT, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and British Airways - these airlines can fly you to your destination from $593 and $606, respectively. LOT is priced at 19% 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 $416 on Air Serbia. Other airlines that offer cheap prices include British Airways from $591 and KLM from $613 one-way.

  • 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.

  • 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

Browse thousands of different options on Cheapflights for your next trip

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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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$460Average$816FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$536Average$800FlexibilityNo cancel feeOn-time76%
LOTCheapest$548Average$626FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$551Average$795FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$576Average$784FlexibilityNo cancel feeOn-time78%
United AirlinesCheapest$580Average$774FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$631Average$688FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$661Average$722FlexibilityNo cancel feeOn-time77%
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