$376+ Cheap flights from Bulgaria 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 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
Aug 25 — Sep 11
Round-trip
1 adult, Economy
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Find cheap flights from Bulgaria 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
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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 Bulgaria to Chicago
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Cheapest flights from Bulgaria to ChicagoExplore the most affordable flight options available from Bulgaria to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
Explore the most affordable flight options available from Bulgaria to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:55 am
SOF
- ORD
1 stop30h 05m
Turkish Airlines
Sun 11/298:15 pm
ORD
- SOF
1 stop34h 55m
Turkish Airlines
Deal found 7/25![Turkish Airlines logo]()
$803
This Justfly.com deal was found by Cheapflights users on 7/24. 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.
Wed 9/162:35 pm
SOF
- ORD
2 stops56h 35m
LOT
Wed 9/309:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 7/24![LOT logo]()
$804
This Gotogate deal was found by Cheapflights users on 7/25. 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 8/276:30 am
SOF
- ORD
1 stop21h 25m
Lufthansa
Tue 9/1510:30 pm
ORD
- SOF
1 stop16h 20m
Lufthansa
Deal found 7/25![Lufthansa logo]()
$805
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:10 am
SOF
- ORD
2 stops21h 05m
Multiple Airlines
Tue 10/133:45 pm
ORD
- SOF
2 stops25h 40m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$809
This oojo deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/42:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Fri 9/119:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 7/21![LOT logo]()
$813
This Turkish Airlines deal was found by Cheapflights users on 7/22. 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 12/611:55 am
SOF
- ORD
1 stop30h 05m
Turkish Airlines
Wed 3/38:15 pm
ORD
- SOF
1 stop30h 50m
Turkish Airlines
Deal found 7/22![Turkish Airlines logo]()
$816
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/276:30 am
SOF
- ORD
1 stop14h 25m
Multiple Airlines
Tue 9/1512:55 pm
ORD
- SOF
2 stops14h 45m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$817
This oojo deal was found by Cheapflights users on 7/25. 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.
Thu 9/172:35 pm
SOF
- ORD
2 stops32h 35m
LOT
Sat 10/39:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 7/25![LOT logo]()
$818
This Mytrip deal was found by Cheapflights users on 7/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:40 pm
SOF
- ORD
3 stops30h 08m
Multiple Airlines
Wed 9/308:45 am
ORD
- SOF
3 stops26h 20m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$821
This LOT deal was found by Cheapflights users on 7/22. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/152:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Mon 10/129:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 7/22![LOT logo]()
$827
This Gotogate deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:05 am
VAR
- ORD
1 stop34h 15m
Austrian Airlines
Sun 9/204:20 pm
ORD
- VAR
1 stop14h 55m
Austrian Airlines
Deal found 7/21![Austrian Airlines logo]()
$843
This Expedia deal was found by Cheapflights users on 7/25. 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.
Fri 9/189:45 am
VAR
- ORD
2 stops18h 10m
Multiple Airlines
Fri 9/254:20 pm
ORD
- VAR
1 stop14h 55m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$867
Best flights from Bulgaria to ChicagoDiscover carefully curated flight deals from Bulgaria to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
Discover carefully curated flight deals from Bulgaria to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:10 am
SOF
- ORD
2 stops21h 05m
Multiple Airlines
Tue 10/133:45 pm
ORD
- SOF
2 stops25h 40m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$809
This United Airlines deal was found by Cheapflights users on 7/25. 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 9/106:30 am
SOF
- ORD
1 stop14h 25m
United Airlines
Wed 9/2310:30 pm
ORD
- SOF
1 stop16h 20m
United Airlines
Deal found 7/25![United Airlines logo]()
$839
This Gotogate deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:05 am
VAR
- ORD
1 stop34h 15m
Austrian Airlines
Sun 9/204:20 pm
ORD
- VAR
1 stop14h 55m
Austrian Airlines
Deal found 7/21![Austrian Airlines logo]()
$843
This oojo deal was found by Cheapflights users on 7/26. 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.
Sun 9/201:35 pm
VAR
- ORD
2 stops29h 25m
Lufthansa
Sun 9/2710:30 pm
ORD
- VAR
2 stops32h 45m
Lufthansa
Deal found 7/26![Lufthansa logo]()
$902
This Turkish Airlines deal was found by Cheapflights users on 7/25. 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 10/269:25 pm
VAR
- ORD
1 stop20h 35m
Turkish Airlines
Tue 11/1711:45 am
ORD
- VAR
1 stop13h 30m
Turkish Airlines
Deal found 7/25![Turkish Airlines logo]()
$926
This United Airlines deal was found by Cheapflights users on 7/22. 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 10/262:05 pm
SOF
- ORD
1 stop14h 00m
United Airlines
Sun 11/19:50 pm
ORD
- SOF
1 stop12h 30m
United Airlines
Deal found 7/22![United Airlines logo]()
$840
This Orbitz deal was found by Cheapflights users on 7/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/201:35 pm
VAR
- ORD
2 stops31h 20m
Multiple Airlines
Sun 9/273:35 pm
ORD
- VAR
1 stop11h 55m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$867
This United Airlines deal was found by Cheapflights users on 7/22. 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 10/256:25 am
SOF
- ORD
2 stops20h 27m
United Airlines
Sun 11/111:56 am
ORD
- SOF
2 stops17h 14m
United Airlines
Deal found 7/22![United Airlines logo]()
$843
This Booking.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:45 am
VAR
- ORD
2 stops18h 10m
Multiple Airlines
Fri 9/2512:55 pm
ORD
- VAR
2 stops18h 20m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$871
This Justfly.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:05 am
VAR
- ORD
2 stops33h 50m
Multiple Airlines
Sun 9/203:40 pm
ORD
- VAR
2 stops19h 55m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$889
This Mytrip deal was found by Cheapflights users on 7/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:00 pm
VAR
- ORD
3 stops34h 25m
Multiple Airlines
Tue 11/1712:50 pm
ORD
- VAR
2 stops18h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,426
Last-minute flights from Bulgaria to ChicagoDiscover last-minute flight deals from Bulgaria to Chicago. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from Bulgaria to Chicago. Data last updated July 26, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:10 pm
VAR
- ORD
1 stop23h 25m
Multiple Airlines
Wed 9/24:30 pm
ORD
- VAR
2 stops36h 15m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$924
This SWISS deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:10 pm
VAR
- ORD
2 stops22h 50m
SWISS
Wed 9/27:50 pm
ORD
- VAR
3 stops77h 50m
SWISS
Deal found 7/21![SWISS logo]()
$1,064
This oojo deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:30 pm
VAR
- ORD
2 stops22h 30m
Lufthansa
Thu 9/36:30 pm
ORD
- VAR
1 stop30h 05m
Lufthansa
Deal found 7/21![Lufthansa logo]()
$937
This Booking.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:30 pm
VAR
- ORD
1 stop24h 30m
Multiple Airlines
Thu 9/36:30 pm
ORD
- VAR
1 stop30h 05m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$1,075
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/46:10 am
SOF
- ORD
2 stops35h 24m
United Airlines
Fri 8/286:15 am
ORD
- SOF
2 stops33h 00m
United Airlines
Deal found 7/22![United Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/512:55 pm
SOF
- ORD
2 stops17h 20m
United Airlines
Fri 8/2812:52 pm
ORD
- SOF
2 stops26h 23m
United Airlines
Deal found 7/22![United Airlines logo]()
$858
This Travelocity deal was found by Cheapflights users on 7/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/116:10 am
SOF
- ORD
1 stop15h 50m
Lufthansa
Fri 8/286:30 pm
ORD
- SOF
1 stop20h 00m
Lufthansa
Deal found 7/22![Lufthansa logo]()
$854
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/206:30 am
SOF
- ORD
2 stops23h 30m
United Airlines
Wed 6/26:30 pm
ORD
- SOF
1 stop20h 20m
United Airlines
Deal found 7/25![United Airlines logo]()
$851
This FlightHub deal was found by Cheapflights users on 7/25. 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.
Thu 8/206:10 am
SOF
- ORD
1 stop15h 50m
Lufthansa
Wed 6/23:10 pm
ORD
- SOF
1 stop11h 50m
Lufthansa
Deal found 7/25![Lufthansa logo]()
$853
This Gotogate deal was found by Cheapflights users on 7/25. 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 8/276:30 am
SOF
- ORD
1 stop21h 25m
Lufthansa
Tue 9/1510:30 pm
ORD
- SOF
1 stop16h 20m
Lufthansa
Deal found 7/25![Lufthansa logo]()
$805
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/276:30 am
SOF
- ORD
1 stop14h 25m
Multiple Airlines
Tue 9/1512:55 pm
ORD
- SOF
2 stops14h 45m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$817
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/276:30 am
SOF
- ORD
1 stop16h 25m
United Airlines
Tue 9/156:00 pm
ORD
- SOF
1 stop16h 40m
United Airlines
Deal found 7/25![United Airlines logo]()
$838
One-way flights from Bulgaria to ChicagoSearch for one-way flight options from Bulgaria to Chicago. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
Search for one-way flight options from Bulgaria to Chicago. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 10/1911:45 am
SOF
- ORD
3 stops38h 05m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 10/314:55 pm
SOF
- ORD
2 stops30h 35m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 9/111:45 pm
SOF
- ORD
3 stops31h 23m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 9/21:00 pm
SOF
- ORD
3 stops42h 08m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$500
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:45 pm
SOF
- MDW
2 stops44h 15m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$510
This British Airways deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:10 pm
SOF
- ORD
1 stop27h 45m
British Airways
Deal found 7/22![British Airways logo]()
$518
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/319:30 pm
SOF
- ORD
3 stops33h 38m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$525
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 10/197:30 pm
SOF
- MDW
3 stops47h 30m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$614
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 8/317:30 pm
SOF
- MDW
3 stops47h 30m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$658
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 9/26:55 pm
SOF
- MDW
3 stops51h 40m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$749
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:45 am
SOF
- MDW
3 stops57h 00m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$824
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:55 am
SOF
- MDW
3 stops54h 50m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$938
Find flight deals from Bulgaria to Chicago
Keep the following information in mind while searching for Bulgaria to Chicago flight deals. Data was last updated July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $803 (CheapOair) |
One-way from | $376 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $842 |
Cheapflights Fare Finder
Customize your flight search to find flights from Bulgaria 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 July 26, 2026.
Use the filters below to find and compare flights from Bulgaria to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SofiaChicago
SOF - ORD
SOFORD
Sofia
Wed 10/7
6:10 am-7:15 pm
2 stops21h 05m
Chicago O'Hare Intl
Tue 10/13
3:45 pm-1:25 am
2 stops25h 40m
$809
SofiaChicago
SOF - ORD
SOFORD
Sofia
Thu 9/10
6:30 am-12:55 pm
1 stop14h 25m
Chicago O'Hare Intl
Wed 9/23
10:30 pm-10:50 pm
1 stop16h 20m
$839
Quickest round-trip
SofiaChicago
SOF - ORD
SOFORD
Sofia
Mon 10/26
2:05 pm-9:05 pm
1 stop14h 00m
Chicago O'Hare Intl
Sun 11/1
9:50 pm-6:20 pm
1 stop12h 30m
$840
VarnaChicago
VAR - ORD
VARORD
Varna
Sun 9/13
11:05 am-1:20 pm
1 stop34h 15m
Chicago O'Hare Intl
Sun 9/20
4:20 pm-3:15 pm
1 stop14h 55m
$843
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sun 10/25
6:25 am-7:52 pm
2 stops20h 27m
Chicago O'Hare Intl
Sun 11/1
11:56 am-1:10 pm
2 stops17h 14m
$843
VarnaChicago
VAR - ORD
VARORD
Varna
Sun 9/20
1:35 pm-12:55 pm
2 stops31h 20m
Chicago O'Hare Intl
Sun 9/27
3:35 pm-11:30 am
1 stop11h 55m
$867
VarnaChicago
VAR - ORD
VARORD
Varna
Fri 9/18
9:45 am-7:55 pm
2 stops18h 10m
Chicago O'Hare Intl
Fri 9/25
12:55 pm-3:15 pm
2 stops18h 20m
$871
VarnaChicago
VAR - ORD
VARORD
Varna
Sun 9/13
11:05 am-12:55 pm
2 stops33h 50m
Chicago O'Hare Intl
Sun 9/20
3:40 pm-7:35 pm
2 stops19h 55m
$889
VarnaChicago
VAR - ORD
VARORD
Varna
Sun 9/20
1:35 pm-11:00 am
2 stops29h 25m
Chicago O'Hare Intl
Sun 9/27
10:30 pm-3:15 pm
2 stops32h 45m
$902
VarnaChicago
VAR - ORD
VARORD
Varna
Mon 10/26
9:25 pm-11:00 am
1 stop20h 35m
Chicago O'Hare Intl
Tue 11/17
11:45 am-9:15 am
1 stop13h 30m
$926
Showing 1-10 of 25 resultsSorted by cheapest first
Best time to book a flight from Bulgaria to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Bulgaria with our price prediction graph.
SOF-ORD
VAR-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 Bulgaria to Chicago
BG0-CHI
SOF-ORD
VAR-ORD
SOF-MDW
What is the cheapest month to book a flight from Bulgaria to Chicago?
Currently, December is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $750). Flying from Bulgaria to Chicago in August is currently the most expensive (average of $878). 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 far ahead should I book a flight from Bulgaria to Chicago?
To ensure you get the cheapest price possible for a flight from Bulgaria to Chicago, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 July 26, 2026.
Peruse reviews from past customers who have flown with KLM,LOT, andTurkish Airlines from Bulgaria to Chicago to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Boarding
7.8
Overall
7.8
Entertainment
7.2
Comfort
7.7
Food
7.3
Crew
8.4
Reviews
1 / 20
4.0
OkaySubhash,Jul 2026
CDG - ATL
Related info for your journey
Find useful and relevant information for your journey from Bulgaria 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 Bulgaria to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
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 July 26, 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 Bulgaria to Chicago by cabin class
Find flights from Bulgaria to Chicago, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Bulgaria and Chicago flights
Browse other Bulgaria and Chicago flight options. Last updated on July 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Bulgaria to Chicago flights
Consider these flights traveling from Bulgaria to Chicago.
Top 6 airlines flying from Bulgaria to Chicago
Discover the top 6 airlines that operate flights from Bulgaria 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 July 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$594 | Average$818 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$629 | Average$747 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$652 | Average$766 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$658 | Average$893 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$704 | Average$788 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$711 | Average$852 | FlexibilityNo cancel fee | On-time76% |