$396+ Cheap flights from Sofia (SOF) to Chicago (CHI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
Nov 2 — Nov 91
Round-trip
1 adult, Economy
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Find cheap flights from Sofia to Chicago 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.Cheap flight deals from Sofia to Chicago
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Best
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One-way
Cheapest flights from Sofia to ChicagoExplore 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 3, 2026.
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 3, 2026.
This British Airways deal was found by Cheapflights users on 9/28. 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.
Fri 11/138:30 pm -
2 stops31h 00m
Thu 11/266:30 pm -
1 stop16h 50m
Deal found 9/28![British Airways logo]()
$833
This Flightnetwork deal was found by Cheapflights users on 9/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:25 am -
2 stops16h 27m
Thu 11/1912:50 pm -
2 stops16h 35m
Deal found 9/28![Air Canada logo]()
$834
This deal was found by Cheapflights users on 9/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:35 pm -
1 stop13h 15m
Tue 1/129:50 pm -
1 stop12h 05m
Deal found 9/28![LOT logo]()
$836
This SWISS deal was found by Cheapflights users on 9/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:45 pm -
1 stop30h 50m
Thu 4/17:05 pm -
1 stop12h 00m
Deal found 9/29![SWISS logo]()
$840
This Gotogate deal was found by Cheapflights users on 10/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:25 am -
1 stop14h 45m
Sat 11/289:50 pm -
1 stop17h 05m
Deal found 10/1![Lufthansa logo]()
$841
This oojo deal was found by Cheapflights users on 10/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:45 pm -
1 stop28h 25m
Mon 10/199:50 pm -
1 stop32h 05m
Deal found 10/2![LOT logo]()
$842
This Expedia deal was found by Cheapflights users on 9/28. 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.
Mon 11/92:10 pm -
1 stop13h 55m
Sun 11/224:10 pm -
1 stop14h 05m
Deal found 9/28![Multiple Airlines logo]()
$843
This Gotogate deal was found by Cheapflights users on 9/28. 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.
Fri 11/66:25 am -
1 stop14h 45m
Thu 11/1912:50 pm -
2 stops16h 35m
Deal found 9/28![Multiple Airlines logo]()
$844
This oojo deal was found by Cheapflights users on 10/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:35 pm -
1 stop13h 20m
Mon 3/19:50 pm -
1 stop32h 00m
Deal found 10/1![LOT logo]()
$846
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
2 stops36h 35m
Sat 11/285:40 pm -
1 stop32h 35m
Deal found 10/1![Multiple Airlines logo]()
$847
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2012:05 pm -
1 stop34h 05m
Sun 1/39:50 pm -
1 stop12h 30m
Deal found 10/2![Multiple Airlines logo]()
$848
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 10/152:10 pm -
1 stop13h 45m
Tue 3/167:00 pm -
1 stop11h 15m
Deal found 9/30![United Airlines logo]()
$849
Best flights from Sofia to ChicagoDiscover carefully curated flight deals from Sofia to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
Discover carefully curated flight deals from Sofia to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 3, 2026.
This British Airways deal was found by Cheapflights users on 9/28. 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.
Fri 11/138:30 pm -
2 stops31h 00m
Thu 11/266:30 pm -
1 stop16h 50m
Deal found 9/28![British Airways logo]()
$833
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 10/152:10 pm -
1 stop13h 45m
Tue 3/167:00 pm -
1 stop11h 15m
Deal found 9/30![United Airlines logo]()
$849
This Turkish Airlines deal was found by Cheapflights users on 10/2. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:55 am -
1 stop14h 25m
Tue 3/28:15 pm -
1 stop34h 55m
Deal found 10/2![Turkish Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/316:25 am -
1 stop16h 55m
Mon 3/224:10 pm -
2 stops23h 45m
Deal found 9/29![United Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 9/29. 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 10/176:20 am -
1 stop12h 40m
Thu 4/11:55 pm -
2 stops25h 05m
Deal found 9/29![United Airlines logo]()
$849
This United Airlines deal was found by Cheapflights users on 9/29. 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.
Fri 11/206:25 am -
1 stop14h 45m
Tue 8/319:40 pm -
1 stop13h 00m
Deal found 9/29![United Airlines logo]()
$850
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Fri 11/136:25 am -
2 stops16h 37m
Thu 11/266:00 pm -
1 stop11h 15m
Deal found 9/30![United Airlines logo]()
$852
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Sat 12/56:25 am -
2 stops16h 27m
Sun 4/49:40 pm -
1 stop13h 00m
Deal found 9/30![United Airlines logo]()
$852
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Sun 11/152:10 pm -
2 stops17h 51m
Sat 2/271:30 pm -
2 stops15h 45m
Deal found 9/28![United Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 9/28. 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.
Thu 10/222:10 pm -
2 stops17h 22m
Tue 1/1210:25 am -
2 stops18h 50m
Deal found 9/28![United Airlines logo]()
$856
Last-minute flights from Sofia to ChicagoDiscover last-minute flight deals from Sofia to Chicago. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute flight deals from Sofia to Chicago. Data last updated October 3, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 10/2. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:45 pm -
1 stop28h 25m
Mon 10/199:50 pm -
1 stop32h 05m
Deal found 10/2![LOT logo]()
$842
This United Airlines deal was found by Cheapflights users on 9/30. 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.
Thu 10/152:10 pm -
1 stop13h 45m
Tue 3/167:00 pm -
1 stop11h 15m
Deal found 9/30![United Airlines logo]()
$849
This deal was found by Cheapflights users on 9/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/152:35 pm -
1 stop13h 15m
Tue 1/129:50 pm -
1 stop12h 05m
Deal found 9/28![LOT logo]()
$850
This deal was found by Cheapflights users on 9/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:35 pm -
1 stop13h 15m
Tue 1/129:50 pm -
1 stop12h 05m
Deal found 9/28![LOT logo]()
$836
This SWISS deal was found by Cheapflights users on 9/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:45 pm -
1 stop30h 50m
Thu 4/17:05 pm -
1 stop12h 00m
Deal found 9/29![SWISS logo]()
$840
This Flightnetwork deal was found by Cheapflights users on 9/28. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:25 am -
2 stops16h 27m
Thu 11/1912:50 pm -
2 stops16h 35m
Deal found 9/28![Air Canada logo]()
$834
This Gotogate deal was found by Cheapflights users on 9/28. 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.
Fri 11/66:25 am -
1 stop14h 45m
Thu 11/1912:50 pm -
2 stops16h 35m
Deal found 9/28![Multiple Airlines logo]()
$844
This Expedia deal was found by Cheapflights users on 9/28. 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.
Mon 11/92:10 pm -
1 stop13h 55m
Sun 11/224:10 pm -
1 stop14h 05m
Deal found 9/28![Multiple Airlines logo]()
$843
This oojo deal was found by Cheapflights users on 10/1. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/112:35 pm -
1 stop13h 20m
Mon 3/19:50 pm -
1 stop32h 00m
Deal found 10/1![LOT logo]()
$846
This Gotogate deal was found by Cheapflights users on 10/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:25 am -
1 stop14h 45m
Sat 11/289:50 pm -
1 stop17h 05m
Deal found 10/1![Lufthansa logo]()
$841
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:55 am -
2 stops36h 35m
Sat 11/285:40 pm -
1 stop32h 35m
Deal found 10/1![Multiple Airlines logo]()
$847
This British Airways deal was found by Cheapflights users on 9/28. 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.
Fri 11/138:30 pm -
2 stops31h 00m
Thu 11/266:30 pm -
1 stop16h 50m
Deal found 9/28![British Airways logo]()
$833
One-way flights from Sofia to ChicagoSearch for one-way flight options from Sofia to Chicago. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
Search for one-way flight options from Sofia to Chicago. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/22:50 pm -
3 stops58h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:55 am -
2 stops36h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/203:35 pm -
3 stops33h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 10/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:45 pm -
3 stops51h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/109:05 am -
3 stops42h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$405
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:45 pm -
2 stops49h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$408
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/62:35 pm -
3 stops34h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 9/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/99:55 am -
3 stops39h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Multiple Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:30 am -
3 stops40h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$424
Find 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 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $833 (British Airways) |
One-way from | $396 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $875 |
Cheapflights Fare Finder
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 7,457,451 searches. Data last updated October 3, 2026.
Use the filters below to find and compare flights from Sofia to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Wed 1/6
2:35 pm-5:20 pm
3 stops34h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$402
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Wed 10/7
2:35 pm-5:15 am
3 stops46h 40m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$534
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Wed 10/14
10:40 am-12:40 pm
2 stops34h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$537
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Fri 12/4
5:00 am-2:45 pm
1 stop17h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$551
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Sun 1/10
7:45 pm-8:27 pm
2 stops32h 42m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$567
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Tue 1/5
7:05 am-5:20 pm
3 stops42h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$579
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Thu 1/7
4:00 pm-2:45 pm
1 stop30h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$622
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Fri 1/8
5:00 am-2:45 pm
1 stop17h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$622
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Tue 10/13
4:00 pm-2:30 pm
1 stop30h 30m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$623
Quickest round-trip
SofiaChicago
SOF Sofia - ORD Chicago O'Hare Intl
SOFORD
Sofia
Sat 10/10
4:00 pm-9:15 pm
1 stop13h 15m
Chicago O'Hare Intl
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$623
Showing 1-10 of 20 resultsSorted by cheapest first
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.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- 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.
SOF-CHI
SOF-ORD
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.
Cheapflights Insights
Everything you need to know about your flight from Sofia to Chicago
SOF-CHI
SOF-ORD
What is the cheapest month to book a flight from Sofia to Chicago?
Currently, May is the cheapest month in which you can book a flight from Sofia to Chicago (average of $775). Flying from Sofia to Chicago in August is currently the most expensive (average of $939). 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.
How much does it cost to fly round-trip from Sofia to Chicago?
Airfare is below average for this route at the moment.
Sofia to Chicago flights typically cost between $850 and $975 in November.The cheapest round-trip price found within the last 5 days was $833 on British Airways (Nov 13-Nov 26).
What’s the top layover airport for flights from Sofia to Chicago?
Share of 1-stop round-trip flights from Sofia to Chicago chosen by Cheapflights users in the past 12 months, using the same layover each way.
Warsaw (WAW) – chosen by Cheapflights users on 41% of 1-stop itineraries from Sofia to Chicago on Cheapflights.
What’s the cheapest layover airport for flights from Sofia to Chicago?
Average round-trip fare for 1-stop flights from Sofia to Chicago, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Warsaw (WAW) is the most affordable 1-stop option, with an average round-trip price of $731.
What’s the fastest layover option from Sofia to Chicago?
Shortest average travel time for 1-stop one-way flights from Sofia to Chicago, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Warsaw (WAW) have the shortest average one-way travel time for 1-stop routes: 13h 17m.
Which airport typically offers the quickest layover for flights from Sofia to Chicago?
Average layover duration for 1-stop one-way flights from Sofia to Chicago, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Warsaw (WAW) offer the fastest connection on this route, with an average layover time of 1h 07m.
How far ahead should I book a flight from Sofia to Chicago?
The best time to book flights from Sofia to Chicago is 70 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.
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 3, 2026.
Read through reviews of airlines operating flights from Sofia to Chicago, such as KLM,LOT, andTurkish Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Overall
7.8
Entertainment
7.2
Reviews
1 / 20
8.0
ExcellentKushal,Sep 2026
QRO - ATL
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.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter
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Alternative routes for Sofia to Chicago
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Other flights to Chicago
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.
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Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.
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Sofia and Chicago flights
Browse other Sofia and Chicago flight options. Last updated on October 3, 2026.
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Top 6 airlines flying from Sofia to Chicago
Discover the top 6 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 7,457,451 searches. Data last updated October 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$635 | Average$783 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$652 | Average$769 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$685 | Average$804 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$714 | Average$871 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$758 | Average$830 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$845 | Average$1,019 | FlexibilityNo cancel fee | On-time78% |