HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$396+ Cheap flights from Sofia (SOF) to Illinois

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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Nov 7 — Nov 141
Thu 11/7
Thu 11/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sofia to Illinois with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Sofia to Illinois

Cheapest flights from Sofia to Illinois
Explore the most affordable flight options available from Sofia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 2, 2024.

This KLM deal was found by Cheapflights users on 11/1. 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 - ORD
1 stop15h 30mMultiple Airlines
Mon 12/25:20 pmORD - SOF
1 stop12h 45mMultiple Airlines
Deal found 11/1$574
This KLM deal was found by Cheapflights users on 11/1. 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 - ORD
1 stop15h 30mKLM
Sat 2/111:30 amORD - SOF
2 stops18h 35mKLM
Deal found 11/1$577
This Air France deal was found by Cheapflights users on 11/1. 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
Sat 2/111:30 amORD - SOF
2 stops18h 25mAir France
Deal found 11/1$594
This Gotogate deal was found by Cheapflights users on 11/2. 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.
Thu 12/126:35 pmSOF - ORD
1 stop33h 25mLOT
Wed 3/1210:55 pmORD - SOF
1 stop31h 55mLOT
Deal found 11/2$606
This Air Canada deal was found by Cheapflights users on 11/2. 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.
Thu 12/122:25 pmSOF - ORD
2 stops26h 33mAir Canada
Wed 3/1211:35 amORD - SOF
2 stops18h 25mAir Canada
Deal found 11/2$634
This British Airways deal was found by Cheapflights users on 11/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/235:25 pmSOF - ORD
1 stop28h 30mBritish Airways
Tue 1/145:00 pmORD - SOF
1 stop13h 10mBritish Airways
Deal found 11/1$637
This Booking.com deal was found by Cheapflights users on 11/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/166:00 amSOF - ORD
1 stop13h 05mLufthansa
Sat 3/19:25 pmORD - SOF
1 stop17h 20mLufthansa
Deal found 11/1$638
This United Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 11/166:00 amSOF - ORD
1 stop17h 15mUnited Airlines
Mon 12/23:55 pmORD - SOF
1 stop13h 40mUnited Airlines
Deal found 11/1$639
This American Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 11/1612:05 pmSOF - ORD
1 stop34h 40mAmerican Airlines
Thu 6/194:45 pmORD - SOF
1 stop12h 45mAmerican Airlines
Deal found 11/1$663
This Austrian Airlines deal was found by Cheapflights users on 11/1. 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.
Sat 11/166:15 pmSOF - ORD
2 stops26h 00mAustrian Airlines
Fri 5/21:12 pmORD - SOF
2 stops14h 28mAustrian Airlines
Deal found 11/1$668
This FlightHub deal was found by Cheapflights users on 11/1. 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 12/189:40 pmSOF - ORD
1 stop28h 55mTurkish Airlines
Sun 1/511:55 amORD - SOF
1 stop24h 55mTurkish Airlines
Deal found 11/1$704
This KLM deal was found by Cheapflights users on 11/1. 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 12/147:00 amSOF - MDW
2 stops19h 32mKLM
Tue 3/112:00 pmMDW - SOF
2 stops17h 05mKLM
Deal found 11/1$730

Find flights from Sofia to Illinois within your budget

Customize your flight search to find flights from Sofia to Illinois 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 2,462,897 searches. Data last updated November 2, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

9:25 am-6:41 pm

3 stops41h 16m

$396

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 11/8

12:30 pm-2:30 pm

1 stop34h 00m

$542

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

5:00 am-10:50 am

1 stop13h 50m

$543

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 11/7

2:25 pm-8:05 pm

1 stop13h 40m

$683

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

7:00 am-2:30 pm

1 stop15h 30m

Chicago O'Hare Intl

Fri 1/17

5:20 pm-1:55 pm

1 stop12h 35m

$574

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 2/13

6:35 pm-8:00 pm

1 stop33h 25m

Chicago O'Hare Intl

Fri 2/28

9:55 pm-1:50 pm

1 stop31h 55m

$576

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

7:00 am-2:30 pm

1 stop15h 30m

Chicago O'Hare Intl

Thu 2/6

12:17 pm-2:05 pm

2 stops17h 48m

$577

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 11/16

5:00 am-3:05 pm

2 stops18h 05m

Chicago O'Hare Intl

Sat 2/1

11:30 am-1:55 pm

2 stops18h 25m

$594

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 2/28

6:20 am-10:54 am

2 stops36h 34m

Chicago O'Hare Intl

Fri 5/2

3:35 pm-12:10 pm

1 stop12h 35m

$631

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 12/12

2:25 pm-8:58 am

2 stops26h 33m

Chicago O'Hare Intl

Wed 3/12

11:35 am-1:00 pm

2 stops18h 25m

$634

Flights are sorted by cheapest first

Deals found on 11/1

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Sofia to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois 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 Illinois

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

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

Currently, September is the cheapest month in which you can book a flight from Sofia to Illinois (average of $232). Flying from Sofia to Illinois 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 IL?

Find hourly flight availability from Sofia to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 2, 2024.

When flying from Sofia to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois 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 Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 2, 2024.
To help decide which airline to fly from Sofia to Illinois, see what other customers have to say about KLM and Air France. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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
1,350 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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
7.6
Good
828 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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
1,646 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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
1,198 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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
3,894 reviews
KLM
7.8
Good
1,350 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Food

7.3

Comfort

7.7

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 Illinois. 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 Illinois?

    Most people fly from Sofia (SOF) if they book a flight from Sofia to Illinois. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

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

    Yes, there are multiple flights from Sofia to Illinois for under $600. The cheapest flight booked recently is on Multiple Airlines for just $574, but on average you can expect to pay $1,221.

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

    The cheapest airline one-way is Qatar Airways, with whom users have recently found tickets for as low as $542. However, be on the lookout for offers from Air Serbia and Lufthansa, as they are both options that can get you from Sofia to Illinois for a low price.

  • What does SOF to ORD mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Sofia Airport to Chicago O'Hare Intl Airport flight would often be abbreviated as a SOF to ORD flight. Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI) are some additional IATA codes for airports related to your trip.

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

    The amount of baggage you can bring on your Sofia to Illinois 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 Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Sofia to Illinois 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 Illinois that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Sofia to Illinois 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 Illinois that allow pets onboard?

    Many airlines flying from Sofia to Illinois 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 Illinois?

    Yes, you can often find last-minute deals on Sofia to Illinois 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 Illinois flight deals updated?

    The Sofia to Illinois flight deals you see on this page were last updated on 11/2.

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

    Currently, September is the cheapest month in which you can book a flight from Sofia to Illinois (average of $232). Flying from Sofia to Illinois 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Sofia to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Sofia to John F Kennedy Intl flights
Sofia to Newark flights
Sofia to LaGuardia flights
Sofia to O'Hare Intl flights
Sofia to Miami flights
Sofia to Las Vegas flights
Sofia to Dulles Intl flights
Sofia to Midway flights
Sofia to Boston flights
Sofia to Tampa flights
Sofia to Detroit flights
Sofia to Ontario flights
Sofia to West Palm Beach flights
Sofia to Dallas/Fort Worth flights
Sofia to Hobby flights
Sofia to Baltimore flights
Sofia to San Jose flights
Sofia to Orlando flights
Sofia to San Francisco flights
Sofia to Philadelphia flights
Sofia to Minneapolis flights
Sofia to Seattle flights
Sofia to Honolulu flights
Sofia to Los Angeles flights
Sofia to Fort Lauderdale flights
Sofia to George Bush Intcntl flights
Sofia to Tulsa flights
Sofia to Oakland flights
Sofia to Charlotte flights
Sofia to Raleigh flights
Sofia to Burbank flights
Sofia to Santa Ana flights
Sofia to Richmond flights
Sofia to Providence flights
Sofia to Fayetteville flights
Sofia to Portland flights
Sofia to Norfolk flights
Sofia to Kailua-Kona flights
Sofia to Indianapolis flights
Sofia to Florence flights

Top 8 airlines flying from Sofia to Illinois

Discover the top 8 airlines that operate flights from Sofia to Illinois. 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 2,462,897 searches. Data last updated November 2, 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%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines