$361+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
May 3 — May 101
Round-trip
1 adult, Economy
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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 April 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 April 3, 2026.
This FlightHub deal was found by Cheapflights users on 3/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:50 pm
SOF
- ORD
1 stop34h 25m
Turkish Airlines
Fri 7/1011:25 am
ORD
- SOF
1 stop19h 35m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$682
This Justfly.com deal was found by Cheapflights users on 3/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/122:05 pm
SOF
- ORD
1 stop27h 35m
Turkish Airlines
Sat 4/2511:25 am
ORD
- SOF
1 stop17h 50m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$684
This FlightHub deal was found by Cheapflights users on 3/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Mon 8/108:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$687
This oojo deal was found by Cheapflights users on 3/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Wed 9/165:10 pm
ORD
- SOF
1 stop12h 40m
LOT
Deal found 3/29![LOT logo]()
$697
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/85:25 am
SOF
- ORD
1 stop22h 25m
LOT
Sun 9/279:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/30![LOT logo]()
$699
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/85:25 am
SOF
- ORD
1 stop22h 25m
LOT
Fri 9/259:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/30![LOT logo]()
$700
This FlightHub deal was found by Cheapflights users on 4/1. 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 7/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Thu 8/208:10 pm
ORD
- SOF
1 stop16h 05m
Turkish Airlines
Deal found 4/1![Turkish Airlines logo]()
$710
This FlightHub deal was found by Cheapflights users on 3/31. 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 7/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Tue 8/1811:25 am
ORD
- SOF
1 stop19h 35m
Turkish Airlines
Deal found 3/31![Turkish Airlines logo]()
$711
This oojo deal was found by Cheapflights users on 3/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/222:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Thu 10/225:10 pm
ORD
- SOF
2 stops24h 45m
LOT
Deal found 3/29![LOT logo]()
$712
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Mon 9/288:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 3/30![Turkish Airlines logo]()
$716
This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:00 am
SOF
- MDW
2 stops18h 54m
KLM
Sat 4/251:24 pm
MDW
- SOF
2 stops16h 36m
KLM
Deal found 3/29![KLM logo]()
$755
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
SOF
- MDW
2 stops18h 58m
KLM
Thu 5/281:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/30![KLM logo]()
$767
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 April 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 April 3, 2026.
This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 am
SOF
- ORD
1 stop15h 15m
KLM
Sat 5/911:09 am
ORD
- SOF
2 stops18h 51m
KLM
Deal found 3/29![KLM logo]()
$745
This Turkish Airlines deal was found by Cheapflights users on 3/31. 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.
Sun 8/22:05 pm
SOF
- ORD
1 stop27h 35m
Turkish Airlines
Sun 11/298:20 pm
ORD
- SOF
1 stop16h 30m
Turkish Airlines
Deal found 3/31![Turkish Airlines logo]()
$797
This oojo deal was found by Cheapflights users on 4/2. 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.
Tue 5/192:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Thu 6/185:10 pm
ORD
- SOF
1 stop24h 35m
LOT
Deal found 4/2![LOT logo]()
$812
This KLM deal was found by Cheapflights users on 4/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
SOF
- ORD
1 stop15h 30m
Multiple Airlines
Wed 9/301:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$819
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 5/56:10 am
SOF
- ORD
1 stop12h 50m
United Airlines
Wed 5/276:30 pm
ORD
- SOF
1 stop15h 35m
United Airlines
Deal found 3/31![United Airlines logo]()
$840
This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:00 am
SOF
- ORD
2 stops20h 52m
KLM
Sun 5/31:36 pm
ORD
- SOF
2 stops16h 24m
KLM
Deal found 3/29![KLM logo]()
$755
This Turkish Airlines deal was found by Cheapflights users on 3/31. 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.
Sat 5/163:50 pm
SOF
- ORD
1 stop34h 25m
Turkish Airlines
Thu 6/1111:25 am
ORD
- SOF
1 stop24h 50m
Turkish Airlines
Deal found 3/31![Turkish Airlines logo]()
$798
This KLM deal was found by Cheapflights users on 3/31. 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 4/277:00 am
SOF
- ORD
2 stops17h 18m
Multiple Airlines
Tue 9/291:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$829
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Wed 8/56:20 am
SOF
- ORD
1 stop16h 35m
United Airlines
Sat 9/1210:50 am
ORD
- SOF
2 stops17h 20m
United Airlines
Deal found 3/30![United Airlines logo]()
$841
This Turkish Airlines deal was found by Cheapflights users on 4/1. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/79:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Thu 10/111:25 am
ORD
- SOF
1 stop13h 20m
Turkish Airlines
Deal found 4/1![Turkish Airlines logo]()
$798
This KLM deal was found by Cheapflights users on 3/31. 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 4/277:00 am
SOF
- MDW
2 stops18h 58m
KLM
Mon 9/281:00 pm
MDW
- SOF
2 stops17h 00m
KLM
Deal found 3/31![KLM logo]()
$834
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Wed 8/56:20 am
SOF
- ORD
1 stop16h 35m
United Airlines
Sat 9/58:40 am
ORD
- SOF
2 stops19h 30m
United Airlines
Deal found 3/29![United Airlines logo]()
$841
This KLM deal was found by Cheapflights users on 3/31. 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.
Fri 5/157:00 am
SOF
- MDW
2 stops18h 56m
Multiple Airlines
Tue 6/91:16 pm
MDW
- SOF
2 stops16h 44m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$873
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:00 am
SOF
- MDW
2 stops17h 26m
KLM
Tue 9/291:00 pm
MDW
- SOF
2 stops17h 00m
KLM
Deal found 3/30![KLM logo]()
$837
This United Airlines deal was found by Cheapflights users on 4/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/112:20 pm
SOF
- ORD
1 stop13h 35m
United Airlines
Fri 5/293:10 pm
ORD
- SOF
1 stop14h 05m
United Airlines
Deal found 4/2![United Airlines logo]()
$842
This KLM deal was found by Cheapflights users on 3/31. 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.
Thu 5/77:00 am
SOF
- MDW
2 stops18h 56m
KLM
Sat 5/301:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/31![KLM logo]()
$846
This KLM deal was found by Cheapflights users on 4/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
SOF
- MDW
2 stops19h 36m
KLM
Thu 5/79:22 am
MDW
- SOF
2 stops20h 38m
KLM
Deal found 4/2![KLM logo]()
$866
This KLM deal was found by Cheapflights users on 4/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/297:00 am
SOF
- MDW
2 stops18h 56m
Multiple Airlines
Fri 6/121:16 pm
MDW
- SOF
2 stops16h 44m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$1,072
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
SOF
- MDW
2 stops19h 33m
KLM
Sun 5/241:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/30![KLM logo]()
$960
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:00 am
SOF
- MDW
2 stops18h 56m
KLM
Sun 5/241:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/30![KLM logo]()
$960
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 am
SOF
- MDW
2 stops18h 58m
KLM
Sun 9/271:00 pm
MDW
- SOF
2 stops17h 00m
KLM
Deal found 3/30![KLM logo]()
$1,000
This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:00 am
SOF
- MDW
2 stops18h 56m
KLM
Mon 5/251:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/29![KLM logo]()
$1,022
This KLM deal was found by Cheapflights users on 4/2. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:00 am
SOF
- MDW
2 stops17h 12m
KLM
Sun 6/141:16 pm
MDW
- SOF
2 stops16h 44m
KLM
Deal found 4/2![KLM logo]()
$1,077
Last-minute flights from Sofia to ChicagoDiscover last-minute flight deals from Sofia to Chicago. Data last updated April 3, 2026 and is based on user searches.
Discover last-minute flight deals from Sofia to Chicago. Data last updated April 3, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 3/29. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/122:05 pm
SOF
- ORD
1 stop27h 35m
Turkish Airlines
Sat 4/2511:25 am
ORD
- SOF
1 stop17h 50m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$684
This KLM deal was found by Cheapflights users on 3/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:00 am
SOF
- MDW
2 stops18h 54m
KLM
Sat 4/251:24 pm
MDW
- SOF
2 stops16h 36m
KLM
Deal found 3/29![KLM logo]()
$755
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/252:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Tue 9/299:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/31![LOT logo]()
$722
This KLM deal was found by Cheapflights users on 3/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:00 am
SOF
- MDW
2 stops18h 58m
KLM
Thu 5/281:22 pm
MDW
- SOF
2 stops16h 38m
KLM
Deal found 3/30![KLM logo]()
$767
This oojo deal was found by Cheapflights users on 3/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:35 pm
SOF
- ORD
1 stop32h 35m
LOT
Mon 9/289:50 pm
ORD
- SOF
1 stop32h 05m
LOT
Deal found 3/30![LOT logo]()
$719
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/85:25 am
SOF
- ORD
1 stop22h 25m
LOT
Sun 9/279:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/30![LOT logo]()
$699
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/85:25 am
SOF
- ORD
1 stop22h 25m
LOT
Fri 9/259:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/30![LOT logo]()
$700
This FlightHub deal was found by Cheapflights users on 3/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Mon 9/288:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 3/30![Turkish Airlines logo]()
$716
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 5/95:25 am
SOF
- ORD
1 stop17h 45m
LOT
Sun 9/279:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/30![LOT logo]()
$720
This oojo deal was found by Cheapflights users on 3/31. 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 5/132:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Mon 5/259:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 3/31![LOT logo]()
$717
This FlightHub deal was found by Cheapflights users on 3/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/229:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Mon 8/108:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$687
This oojo deal was found by Cheapflights users on 3/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/262:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Wed 9/165:10 pm
ORD
- SOF
1 stop12h 40m
LOT
Deal found 3/29![LOT logo]()
$697
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 April 3, 2026.
Search for one-way flight options from Sofia to Chicago. Find affordable one-way fares based on user searches. Data last updated April 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/229:05 pm
SOF
- ORD
2 stops54h 52m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Thu 4/2312:55 pm
SOF
- ORD
2 stops39h 02m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/215:00 pm
SOF
- MDW
3 stops46h 26m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Tue 4/215:00 pm
SOF
- ORD
3 stops48h 05m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/226:00 am
SOF
- MDW
2 stops33h 26m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Thu 4/2312:55 pm
SOF
- MDW
2 stops32h 05m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 9/279:35 pm
SOF
- ORD
3 stops28h 15m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/247:35 am
SOF
- ORD
2 stops40h 39m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$424
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 9/285:45 am
SOF
- ORD
3 stops20h 05m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 9/186:00 am
SOF
- ORD
3 stops19h 50m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 4/2. 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.
Wed 6/175:45 am
SOF
- ORD
3 stops23h 40m
Multiple Airlines
Deal found 4/2![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 3/30. 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 4/247:35 am
SOF
- MDW
2 stops37h 25m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$435
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 April 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $682 (FlightHub) |
One-way from | $361 (Kiwi.com) |
Popular in | August |
Cheapest in | April |
Average price | $708 |
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 2,558,603 searches. Data last updated April 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 - ORD
SOFORD
Sofia
Sat 4/25
7:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Sat 5/9
11:09 am-2:00 pm
2 stops18h 51m
$745
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sun 4/26
7:00 am-7:52 pm
2 stops20h 52m
Chicago O'Hare Intl
Sun 5/3
1:36 pm-2:00 pm
2 stops16h 24m
$755
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sun 8/2
2:05 pm-9:40 am
1 stop27h 35m
Chicago O'Hare Intl
Sun 11/29
8:20 pm-8:50 pm
1 stop16h 30m
$797
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sat 5/16
3:50 pm-6:15 pm
1 stop34h 25m
Chicago O'Hare Intl
Thu 6/11
11:25 am-8:15 pm
1 stop24h 50m
$798
SofiaChicago
SOF - ORD
SOFORD
Sofia
Mon 9/7
9:05 pm-9:40 am
1 stop20h 35m
Chicago O'Hare Intl
Thu 10/1
11:25 am-8:45 am
1 stop13h 20m
$798
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 5/19
2:35 pm-7:50 pm
1 stop13h 15m
Chicago O'Hare Intl
Thu 6/18
5:10 pm-1:45 am
1 stop24h 35m
$812
SofiaChicago
SOF - ORD
SOFORD
Sofia
Wed 9/9
7:00 am-2:30 pm
1 stop15h 30m
Chicago O'Hare Intl
Wed 9/30
1:30 pm-2:00 pm
2 stops16h 30m
$819
SofiaChicago
SOF - ORD
SOFORD
Sofia
Mon 4/27
7:00 am-4:18 pm
2 stops17h 18m
Chicago O'Hare Intl
Tue 9/29
1:30 pm-2:00 pm
2 stops16h 30m
$829
SofiaChicago
SOF - MDW
SOFMDW
Sofia
Mon 4/27
7:00 am-5:58 pm
2 stops18h 58m
Chicago Midway
Mon 9/28
1:00 pm-2:00 pm
2 stops17h 00m
$834
SofiaChicago
SOF - MDW
SOFMDW
Sofia
Wed 4/29
7:00 am-4:26 pm
2 stops17h 26m
Chicago Midway
Tue 9/29
1:00 pm-2:00 pm
2 stops17h 00m
$837
Showing 1-10 of 47 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 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
SOF-MDW
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
SOF-MDW
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 April 2, 2026.
The best time to book flights from Sofia to Chicago is 83 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, November is the cheapest month in which you can book a flight from Sofia to Chicago (average of $527). Flying from Sofia to Chicago in August is currently the most expensive (average of $678). 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?
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 53% 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 $652.
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 05m.
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 05m.
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 April 3, 2026.
Read through reviews of airlines operating flights from Sofia to Chicago, such as KLM,LOT, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Entertainment
7.1
Crew
8.4
Boarding
7.8
Food
7.3
Overall
7.7
Comfort
7.6
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
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 locationsLansing
Merrillville
Hammond
Porter
Benton Harbor
Browse thousands of different options on Cheapflights for your next trip
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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 April 3, 2026.
Complete your trip
Complete your trip to Chicago by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Sofia to Chicago by cabin class
Find flights from Sofia to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Sofia and Chicago flights
Browse other Sofia and Chicago flight options. Last updated on April 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 2,558,603 searches. Data last updated April 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$619 | Average$710 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$625 | Average$745 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$631 | Average$762 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$654 | Average$853 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$683 | Average$778 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$707 | Average$830 | FlexibilityNo cancel fee | On-time76% |