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$420+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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Cheap flight deals from Sofia to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Illinois (USIL). 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 December 22, 2024.

Round-trip from

$576
(KLM)

One-way from

$420
(Kiwi.com)
From Sofia to Illinois
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One-way flight from Sofia to Illinois
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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 December 22, 2024.

This Ovago deal was found by Cheapflights users on 12/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2812:05 pmSOF - ORD
1 stop14h 40mBritish Airways
Mon 12/308:30 pmORD - SOF
2 stops33h 40mBritish Airways
Deal found 12/21$764
This Austrian Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/2412:35 pmSOF - ORD
1 stop33h 30mAustrian Airlines
Sat 1/45:55 pmORD - SOF
2 stops22h 00mAustrian Airlines
Deal found 12/21$843
This OneTravel deal was found by Cheapflights users on 12/21. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:00 amSOF - ORD
2 stops24h 13mMultiple Airlines
Sat 1/45:55 pmORD - SOF
2 stops16h 15mMultiple Airlines
Deal found 12/21$872
This KLM deal was found by Cheapflights users on 12/21. 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.
Tue 12/247:00 amSOF - MDW
2 stops18h 11mKLM
Sat 1/411:48 amMDW - SOF
2 stops18h 17mKLM
Deal found 12/21$1,436

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 2,558,603 searches. Data last updated December 22, 2024.

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Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 1/18

7:00 am-9:15 pm

2 stops22h 15m

Chicago O'Hare Intl

Sat 2/1

11:28 am-2:05 pm

2 stops18h 37m

$576

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 4/29

7:00 am-6:41 pm

2 stops19h 41m

Chicago O'Hare Intl

Thu 5/15

5:15 pm-2:00 pm

1 stop12h 45m

$577

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 2/22

5:00 am-3:05 pm

2 stops18h 05m

Chicago O'Hare Intl

Sat 3/8

5:20 pm-3:30 pm

2 stops14h 10m

$588

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 1/14

6:05 pm-1:55 pm

1 stop27h 50m

Chicago O'Hare Intl

Tue 7/22

9:15 pm-8:40 pm

1 stop15h 25m

$629

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 1/18

6:05 am-1:11 pm

2 stops39h 06m

Chicago O'Hare Intl

Sat 2/1

9:25 pm-10:45 pm

1 stop17h 20m

$637

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 1/15

2:10 pm-8:57 am

2 stops26h 47m

Chicago O'Hare Intl

Wed 1/22

3:35 pm-1:00 pm

2 stops13h 25m

$638

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 1/18

12:05 pm-6:45 pm

1 stop14h 40m

Chicago O'Hare Intl

Sat 2/1

9:45 pm-4:20 pm

1 stop34h 35m

$648

SofiaChicago

SOF - MDW

SOFMDW

Sofia

Sat 1/11

7:00 am-5:47 pm

2 stops18h 47m

Chicago Midway

Mon 1/20

12:44 pm-2:05 pm

2 stops17h 21m

$674

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 1/9

4:00 pm-1:40 pm

2 stops29h 40m

Chicago O'Hare Intl

Fri 1/17

7:05 pm-10:20 am

1 stop31h 15m

$687

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 1/9

6:45 pm-1:40 pm

2 stops26h 55m

Chicago O'Hare Intl

Mon 1/20

4:20 pm-6:00 pm

1 stop17h 40m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 27 results
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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, August is the cheapest month in which you can book a flight from Sofia to Illinois (average of $245). Flying from Sofia to Illinois in March is currently the most expensive (average of $317). 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 December 22, 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 December 22, 2024.
To help decide which airline to fly from Sofia to Illinois, see what other customers have to say about KLM, Air France and British Airways. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Emirates
8.1
Very good
3,398 reviews
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

KLM
7.8
Good
1,342 reviews
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

LOT
7.6
Good
1,127 reviews
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

Austrian Airlines
7.6
Good
785 reviews
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

SWISS
7.6
Good
1,605 reviews
Emirates
8.1
Very good
3,398 reviews

Boarding

8.1

Overall

8.1

Crew

8.3

Comfort

8.0

Entertainment

8.2

Food

7.9

Reviews

1 / 10

It was not a good experience the seats were small and uncomfortable the food was not good and they forgot to serve me my breakfast - there were 5 us in 2 rows that they just completely skipped us. Very disappointed.

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.

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

    The cheapest airline one-way is LOT, with whom users have recently found tickets for as low as $601. However, be on the lookout for offers from British Airways and Austrian Airlines, as they are both options that can get you from Sofia to Illinois for a low price.

  • 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.

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

    Currently, August is the cheapest month in which you can book a flight from Sofia to Illinois (average of $245). Flying from Sofia to Illinois in March is currently the most expensive (average of $317). 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 Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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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 2,558,603 searches. Data last updated December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$460Average$816FlexibilityNo cancel feeOn-time75%
LOTCheapest$547Average$621FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$551Average$795FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$576Average$783FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$601Average$788FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$622Average$770FlexibilityNo cancel feeOn-time69%
ITA AirwaysCheapest$631Average$688FlexibilityNo cancel feeOn-time81%
Turkish AirlinesCheapest$641Average$723FlexibilityNo cancel feeOn-time77%
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