Cheap flights from Illinois to Sofia (SOF) from $311

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 5/7. 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.
ORD — SOF
Apr 24 — May 11

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

To save on the cost of your flight from Illinois to Sofia, book at least 21 days before your planned departure. Booking around this time can save you about 15% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $685 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $793.

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

January is one of the best times of the year to fly to Sofia from Illinois. Prices for January average $826 per person but you can even find prices for as low as $395. The most expensive prices can be found in the month of June. Opting for a January flight can save you 54% on your journey compared to booking in June

When is the cheapest time to fly from Illinois to Sofia (IL - SOF)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sofia as you normally would.

Cheap ITA Airways flights from Illinois to Sofia

Explore cheap flight options specifically provided by ITA Airways for the route between Illinois and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 19, 2024.
Check out some of the cheapest ITA Airways flights we've come across from Illinois to Sofia. It's recommended that users confirm their flight details before booking.
Sat 5/43:00 pmORD - SOF
1 stop18h 10mITA Airways
Mon 5/1312:55 pmSOF - ORD
1 stop32h 15mITA Airways
Deal found 4/18$630
Fri 5/103:00 pmORD - SOF
1 stop18h 10mITA Airways
Sat 5/186:00 pmSOF - ORD
1 stop27h 10mITA Airways
Deal found 4/18$684
Sat 7/273:00 pmORD - SOF
1 stop18h 10mITA Airways
Sat 8/316:00 pmSOF - ORD
1 stop27h 10mITA Airways
Deal found 4/18$735
Sun 5/193:00 pmORD - SOF
1 stop13h 05mITA Airways
Fri 8/306:00 pmSOF - ORD
1 stop27h 10mITA Airways
Deal found 4/18$758
Tue 5/213:00 pmORD - SOF
1 stop13h 05mITA Airways
Fri 8/306:00 pmSOF - ORD
1 stop27h 10mITA Airways
Deal found 4/18$883

Cheap Turkish Airlines flights from Illinois to Sofia

Explore cheap flight options specifically provided by Turkish Airlines for the route between Illinois and Sofia. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 19, 2024.
To aid your search, here are some of the cheapest Turkish Airlines flights we've found from Illinois to Sofia. Deals are refreshing constantly so come back soon for more options.
Tue 10/18:30 pmORD - SOF
1 stop28h 00mTurkish Airlines
Tue 10/159:10 pmSOF - ORD
1 stop20h 30mTurkish Airlines
Deal found 4/18$589
Mon 8/511:25 amORD - SOF
1 stop19h 30mTurkish Airlines
Fri 9/273:45 pmSOF - ORD
1 stop25h 55mTurkish Airlines
Deal found 4/18$618
Sun 7/288:30 pmORD - SOF
1 stop34h 25mTurkish Airlines
Wed 10/93:45 pmSOF - ORD
1 stop25h 55mTurkish Airlines
Deal found 4/18$623
Fri 9/208:30 pmORD - SOF
1 stop34h 25mTurkish Airlines
Mon 10/213:45 pmSOF - ORD
1 stop25h 55mTurkish Airlines
Deal found 4/18$628

Cheap Illinois to Sofia flights in April & May 2024

Find cheap flight options from Illinois to Sofia specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,192,047 searches. Prices were last updated on April 19, 2024.
Scroll through some of the best deals on flights from Illinois to Sofia in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 4/307:15 pmORD - SOF
1 stop30h 55mSWISS
Thu 5/1610:55 amSOF - ORD
1 stop13h 10mSWISS
Deal found 4/18$586
Wed 5/81:35 pmORD - SOF
2 stops22h 55mBritish Airways
Mon 5/138:00 pmSOF - ORD
1 stop25h 45mBritish Airways
Deal found 4/18$597
Sat 5/43:15 pmORD - SOF
2 stops20h 50mBritish Airways
Mon 5/138:00 pmSOF - ORD
1 stop25h 45mBritish Airways
Deal found 4/18$601
Tue 4/306:50 pmORD - SOF
2 stops20h 10mUnited Airlines
Thu 5/166:00 amSOF - ORD
1 stop15h 55mUnited Airlines
Deal found 4/18$604
Sat 4/276:08 pmORD - SOF
2 stops44h 52mUnited Airlines
Tue 5/76:00 amSOF - ORD
1 stop14h 15mUnited Airlines
Deal found 4/18$605
Wed 5/86:30 pmORD - SOF
1 stop20h 05mMultiple Airlines
Mon 5/1312:25 pmSOF - ORD
1 stop32h 55mMultiple Airlines
Deal found 4/18$606
Wed 5/81:35 pmORD - SOF
2 stops22h 55mBritish Airways
Mon 5/138:00 pmSOF - ORD
2 stops33h 44mBritish Airways
Deal found 4/18$607
Sat 4/276:08 pmORD - SOF
2 stops40h 37mUnited Airlines
Tue 5/712:55 pmSOF - ORD
2 stops18h 35mUnited Airlines
Deal found 4/18$609
Tue 4/306:50 pmORD - SOF
2 stops20h 10mUnited Airlines
Thu 5/1612:55 pmSOF - ORD
2 stops19h 26mUnited Airlines
Deal found 4/18$614

Illinois to Sofia 2024 flight deals

Discover exclusive flight deals for travel between Illinois and Sofia in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 19, 2024.
Scroll through some of the best deals on flights from Illinois to Sofia in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Tue 11/123:55 pmORD - SOF
2 stops18h 15mUnited Airlines
Thu 11/282:05 pmSOF - ORD
1 stop14h 00mUnited Airlines
Deal found 4/18$558
Tue 11/1210:35 pmORD - SOF
1 stop16h 00mLufthansa
Thu 11/282:05 pmSOF - ORD
1 stop14h 00mLufthansa
Deal found 4/18$559
Wed 9/188:25 pmORD - SOF
1 stop16h 05mBritish Airways
Tue 9/249:15 pmSOF - ORD
1 stop26h 35mBritish Airways
Deal found 4/18$568
Tue 11/125:55 pmORD - SOF
2 stops16h 15mUnited Airlines
Thu 11/281:45 pmSOF - ORD
2 stops26h 18mUnited Airlines
Deal found 4/18$569
Mon 9/236:25 pmORD - SOF
2 stops18h 00mBritish Airways
Mon 10/218:00 pmSOF - ORD
1 stop27h 50mBritish Airways
Deal found 4/18$571
Wed 9/186:25 pmORD - SOF
2 stops18h 05mBritish Airways
Mon 9/238:00 pmSOF - ORD
1 stop25h 45mBritish Airways
Deal found 4/18$573
Wed 9/185:10 pmORD - SOF
1 stop16h 45mLOT
Wed 9/256:40 pmSOF - ORD
1 stop28h 30mLOT
Deal found 4/18$576
Sun 8/189:40 pmORD - SOF
1 stop12h 15mLOT
Wed 9/186:40 pmSOF - ORD
1 stop28h 30mLOT
Deal found 4/17$577
Mon 9/166:25 pmORD - SOF
2 stops18h 00mBritish Airways
Mon 9/308:00 pmSOF - ORD
2 stops28h 21mBritish Airways
Deal found 4/18$581

Illinois to Sofia flights leaving soon

Find last-minute flight options from Illinois to Sofia for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 19, 2024.
Have a look at some of the last-minute flights available departing from Illinois to Sofia. It's wise to confirm all flight details are correct before booking.
Sat 4/276:08 pmORD - SOF
2 stops44h 52mUnited Airlines
Tue 5/76:00 amSOF - ORD
1 stop14h 15mUnited Airlines
Deal found 4/18$605
Sat 4/276:08 pmORD - SOF
2 stops40h 37mUnited Airlines
Tue 5/712:55 pmSOF - ORD
2 stops18h 35mUnited Airlines
Deal found 4/18$609
Thu 4/254:20 pmORD - SOF
1 stop17h 40mAustrian Airlines
Fri 5/108:00 amSOF - ORD
1 stop13h 20mAustrian Airlines
Deal found 4/17$636
Sat 4/276:00 pmORD - SOF
1 stop21h 00mUnited Airlines
Tue 5/76:00 amSOF - ORD
1 stop14h 15mUnited Airlines
Deal found 4/18$641
Thu 4/254:20 pmORD - SOF
1 stop23h 35mMultiple Airlines
Fri 5/1012:00 pmSOF - ORD
2 stops28h 01mMultiple Airlines
Deal found 4/17$680
Thu 4/257:15 pmORD - SOF
2 stops32h 55mSWISS
Fri 5/1012:55 pmSOF - ORD
2 stops35h 10mSWISS
Deal found 4/17$815
Thu 4/253:45 pmORD - SOF
2 stops18h 20mMultiple Airlines
Fri 5/104:05 pmSOF - ORD
3 stops29h 55mMultiple Airlines
Deal found 4/17$1,208
Thu 4/258:55 pmORD - SOF
3 stops32h 35mMultiple Airlines
Fri 5/104:05 pmSOF - ORD
3 stops29h 55mMultiple Airlines
Deal found 4/17$1,283

One-way flights to Sofia from Illinois

Search for one-way flight options from Illinois to Sofia. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,192,047 searches. Data last updated April 19, 2024.
If you're seeking multiple options on one-way flights from Illinois to Sofia, be sure to check out these deals, which are updated often. Users needing a return flight from Illinois to Sofia should utilize the search form above.
Tue 5/711:11 amORD - SOF
2 stops27h 29mMultiple Airlines
Deal found 4/18$311
Tue 5/711:11 amORD - SOF
3 stops40h 19mMultiple Airlines
Deal found 4/18$317
Sat 5/184:45 pmORD - SOF
2 stops37h 00mMultiple Airlines
Deal found 4/18$370
Sun 5/197:49 amMDW - SOF
2 stops45h 56mMultiple Airlines
Deal found 4/18$385
Sun 5/196:12 amORD - SOF
2 stops47h 33mMultiple Airlines
Deal found 4/18$386
Sun 5/126:12 amORD - SOF
2 stops36h 43mMultiple Airlines
Deal found 4/18$399
Sun 5/125:05 amMDW - SOF
2 stops33h 45mMultiple Airlines
Deal found 4/18$399
Thu 5/1612:19 pmMDW - SOF
3 stops54h 36mMultiple Airlines
Deal found 4/18$408
Wed 5/158:25 amORD - SOF
2 stops45h 20mMultiple Airlines
Deal found 4/18$412

Find flights from Illinois to Sofia within your budget

Customize your flight search to find flights from Illinois to Sofia 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 3,192,047 searches. Data last updated April 19, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$568 - $630

Route

Depart

Return

Price

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 9/18

1 stop16h 05m

Sofia

Tue 9/24

1 stop26h 35m

$568

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 9/18

1 stop16h 45m

Sofia

Wed 9/25

1 stop28h 30m

$576

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 10/15

2 stops40h 10m

Sofia

Tue 10/29

1 stop28h 00m

$584

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 4/30

1 stop30h 55m

Sofia

Thu 5/16

1 stop13h 10m

$586

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 10/1

1 stop28h 00m

Sofia

Tue 10/15

1 stop20h 30m

$589

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 10/1

2 stops21h 00m

Sofia

Tue 10/15

1 stop16h 15m

$595

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 9/18

2 stops20h 44m

Sofia

Wed 9/25

2 stops21h 40m

$600

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 9/18

2 stops19h 54m

Sofia

Wed 10/2

2 stops21h 40m

$615

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 5/4

1 stop18h 10m

Sofia

Mon 5/13

1 stop32h 15m

$630

Flights are sorted by cheapest first

Deals found on 4/18

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. 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 Sofia. Reviews last updated April 19, 2024.
Peruse reviews from past customers who have flown with ITA Airways, Turkish Airlines and Lufthansa from Illinois to Sofia to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.8
Good
2,091 reviews
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.7
Good
1,105 reviews
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.5
Good
3,691 reviews
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.4
Good
11,333 reviews
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

7.3
Good
14,954 reviews
7.8
Good
2,091 reviews

Entertainment

7.3

Overall

7.8

Food

7.4

Comfort

7.6

Boarding

7.9

Crew

8.4

Reviews

1 / 10

Very crowded flight. Staff brought refreshments regularly and the food was surprisingly good. But checking was very slow and they allowed way too many people with large suitcases on board making onboarding and off-boarding very slow and chaotic.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Sofia. 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 into for flights to Sofia from Illinois?

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

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

    Yes, there are multiple flights from Illinois to Sofia for under $600. The cheapest flight booked recently is on British Airways for just $568, but on average you can expect to pay $589.

  • Are there last-minute flights available from Illinois to Sofia for under $700?

    There are currently 8+ open flights from Illinois to Sofia within the next 7 days for less than $700.

  • What are the most popular routes from Illinois to Sofia?

  • What are the most popular airlines that fly from Illinois to Sofia?

  • What does ORD to SOF mean?

    These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Chicago O'Hare Intl Airport to Sofia Airport flight would often be abbreviated as a ORD to SOF flight. While you’re still figuring out your travel plans, it’s not a bad idea to learn the names and codes of other airports around these areas: Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

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

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

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

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

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

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

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

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

    Many airlines flying from Illinois to Sofia 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 Illinois to Sofia?

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

    The Illinois to Sofia flight deals you see on this page were last updated on 4/18.

See more FAQs

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Top 10 airlines flying from Illinois to Sofia

Discover the top 10 airlines that operate flights from Illinois to Sofia. 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 3,192,047 searches. Data last updated April 19, 2024.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$422Average$485FlexibilityNo cancel feeOn-time75%
Search KLM flights
Air FranceCheapest$495Average$610FlexibilityNo cancel feeOn-time77%
Search Air France flights
Austrian AirlinesCheapest$517Average$796FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Turkish AirlinesCheapest$553Average$845FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights
British AirwaysCheapest$579Average$1,012FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest$580Average$948FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest$589Average$906FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Alaska AirlinesCheapest$605Average$708FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
LOTCheapest$606Average$1,252FlexibilityNo cancel feeOn-time81%
Search LOT flights
ITA AirwaysCheapest$650Average$745FlexibilityNo cancel feeOn-time81%
Search ITA Airways flights

Search flights from Illinois to Sofia by cabin class

Find flights from Illinois to Sofia, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Illinois to Sofia?

Deals for Illinois to Sofia flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Sofia?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to Sofia for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Illinois to Sofia with no change fees?

Certainly. Search results for flights to Sofia from Illinois shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Illinois to Sofia become cheaper?

Not ready to book yet? You can track prices for flights from Illinois to Sofia on Cheapflights with our Price Alert feature and get notified when better prices are available.

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