$324+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — CHI
Mar 29 — Apr 51
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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 Bulgaria to Chicago
Cheapest
Best
Last-minute
One-way
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 February 27, 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 February 27, 2026.
This oojo deal was found by Cheapflights users on 2/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/112:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Sat 4/259:50 pm
ORD
- SOF
1 stop20h 10m
LOT
Deal found 2/23![LOT logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 2/24. 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.
Thu 3/192:35 pm
SOF
- ORD
1 stop13h 25m
LOT
Sat 4/49:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/24![LOT logo]()
$662
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:30 am
SOF
- ORD
1 stop17h 40m
LOT
Mon 7/209:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/26![LOT logo]()
$667
This oojo deal was found by Cheapflights users on 2/25. 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.
Wed 5/202:35 pm
SOF
- ORD
1 stop32h 35m
LOT
Fri 8/215:10 pm
ORD
- SOF
2 stops16h 50m
LOT
Deal found 2/25![LOT logo]()
$672
This FlightHub deal was found by Cheapflights users on 2/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:45 pm
SOF
- ORD
1 stop28h 25m
LOT
Sun 10/119:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/26![LOT logo]()
$673
This oojo deal was found by Cheapflights users on 2/25. 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 4/22:35 pm
SOF
- ORD
2 stops37h 15m
LOT
Fri 7/319:50 pm
ORD
- SOF
1 stop32h 00m
LOT
Deal found 2/25![LOT logo]()
$674
This oojo deal was found by Cheapflights users on 2/26. 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.
Fri 4/245:25 am
SOF
- ORD
2 stops22h 25m
LOT
Sat 5/29:50 pm
ORD
- SOF
1 stop20h 05m
LOT
Deal found 2/26![LOT logo]()
$677
This oojo deal was found by Cheapflights users on 2/26. 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.
Thu 6/42:35 pm
SOF
- ORD
2 stops32h 35m
LOT
Thu 7/169:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/26![LOT logo]()
$678
This LOT deal was found by Cheapflights users on 2/23. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:20 am
SOF
- ORD
1 stop17h 50m
LOT
Sat 10/109:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/23![LOT logo]()
$679
This LOT deal was found by Cheapflights users on 2/25. 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 LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Tue 8/49:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/25![LOT logo]()
$680
This Travelocity deal was found by Cheapflights users on 2/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:20 am
VAR
- ORD
1 stop13h 30m
Multiple Airlines
Fri 4/244:20 pm
ORD
- VAR
1 stop14h 55m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$722
This Travelocity deal was found by Cheapflights users on 2/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:20 am
VAR
- ORD
1 stop18h 35m
Lufthansa
Fri 4/2410:30 pm
ORD
- VAR
2 stops32h 45m
Lufthansa
Deal found 2/23![Lufthansa logo]()
$747
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 February 27, 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 February 27, 2026.
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:20 am
SOF
- ORD
1 stop14h 35m
United Airlines
Sat 5/23:35 pm
ORD
- SOF
1 stop12h 35m
United Airlines
Deal found 2/23![United Airlines logo]()
$717
This Air Canada deal was found by Cheapflights users on 2/26. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:20 am
SOF
- ORD
2 stops44h 23m
Air Canada
Thu 6/2511:05 am
ORD
- SOF
2 stops23h 20m
Air Canada
Deal found 2/26![Air Canada logo]()
$722
This KLM deal was found by Cheapflights users on 2/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 am
SOF
- ORD
1 stop15h 15m
Multiple Airlines
Sat 10/101:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$730
This Austrian Airlines deal was found by Cheapflights users on 2/23. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/114:05 pm
SOF
- ORD
1 stop29h 15m
Austrian Airlines
Sat 4/251:00 pm
ORD
- SOF
2 stops18h 20m
Austrian Airlines
Deal found 2/23![Austrian Airlines logo]()
$732
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/305:25 am
SOF
- ORD
1 stop17h 45m
LOT
Fri 6/269:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/26![LOT logo]()
$733
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:00 am
SOF
- MDW
2 stops17h 54m
KLM
Sat 4/41:10 pm
MDW
- SOF
2 stops16h 50m
KLM
Deal found 2/23![KLM logo]()
$758
This Orbitz deal was found by Cheapflights users on 2/24. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:35 pm
VAR
- ORD
2 stops31h 20m
Lufthansa
Sat 7/1810:30 pm
ORD
- VAR
2 stops29h 00m
Lufthansa
Deal found 2/24![Lufthansa logo]()
$911
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:20 am
SOF
- ORD
1 stop14h 35m
United Airlines
Sun 5/39:40 pm
ORD
- SOF
1 stop17h 20m
United Airlines
Deal found 2/23![United Airlines logo]()
$717
This Lufthansa deal was found by Cheapflights users on 2/26. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:00 am
SOF
- ORD
1 stop13h 20m
Multiple Airlines
Thu 6/2510:30 pm
ORD
- SOF
1 stop11h 55m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Sat 5/96:20 am
SOF
- ORD
1 stop16h 30m
United Airlines
Tue 6/26:30 pm
ORD
- SOF
1 stop15h 30m
United Airlines
Deal found 2/25![United Airlines logo]()
$718
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
SOF
- MDW
2 stops17h 54m
KLM
Wed 4/11:10 pm
MDW
- SOF
2 stops16h 50m
KLM
Deal found 2/23![KLM logo]()
$819
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:25 pm
SOF
- ORD
1 stop13h 40m
United Airlines
Wed 4/18:45 am
ORD
- SOF
2 stops19h 25m
United Airlines
Deal found 2/23![United Airlines logo]()
$718
This BusinessClass deal was found by Cheapflights users on 2/27. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:00 pm
VAR
- ORD
1 stop29h 20m
Austrian Airlines
Sun 6/144:30 pm
ORD
- VAR
2 stops38h 45m
Austrian Airlines
Deal found 2/27![Austrian Airlines logo]()
$905
This FlightHub deal was found by Cheapflights users on 2/27. 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 4/154:00 pm
VAR
- ORD
2 stops35h 55m
Lufthansa
Sun 6/1410:30 pm
ORD
- VAR
2 stops32h 45m
Lufthansa
Deal found 2/27![Lufthansa logo]()
$929
This FlightHub deal was found by Cheapflights users on 2/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/112:35 pm
BOJ
- ORD
1 stop32h 00m
Multiple Airlines
Sat 7/1811:03 am
ORD
- BOJ
2 stops17h 17m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$866
This United Airlines deal was found by Cheapflights users on 2/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:30 am
SOF
- ORD
1 stop16h 20m
United Airlines
Mon 5/256:30 pm
ORD
- SOF
1 stop15h 30m
United Airlines
Deal found 2/24![United Airlines logo]()
$718
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:35 pm
SOF
- ORD
2 stops16h 09m
United Airlines
Sat 4/49:40 pm
ORD
- SOF
1 stop13h 00m
United Airlines
Deal found 2/23![United Airlines logo]()
$727
This FlightHub deal was found by Cheapflights users on 2/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/154:00 pm
VAR
- ORD
1 stop29h 20m
Multiple Airlines
Sun 6/1410:30 pm
ORD
- VAR
2 stops32h 45m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$915
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Mon 5/116:20 am
SOF
- ORD
1 stop14h 35m
United Airlines
Thu 6/47:09 am
ORD
- SOF
2 stops27h 16m
United Airlines
Deal found 2/25![United Airlines logo]()
$727
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/277:00 am
SOF
- MDW
2 stops18h 56m
KLM
Sat 10/101:00 pm
MDW
- SOF
2 stops17h 00m
KLM
Deal found 2/23![KLM logo]()
$1,098
This KLM deal was found by Cheapflights users on 2/26. 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 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
Multiple Airlines
Mon 5/251:59 pm
MDW
- SOF
2 stops16h 01m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$1,023
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/117:00 am
SOF
- MDW
2 stops18h 54m
KLM
Sat 4/251:24 pm
MDW
- SOF
2 stops16h 36m
KLM
Deal found 2/23![KLM logo]()
$1,221
This KLM deal was found by Cheapflights users on 2/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 am
SOF
- MDW
2 stops18h 56m
Multiple Airlines
Wed 6/31:22 pm
MDW
- SOF
2 stops16h 38m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,159
This KLM deal was found by Cheapflights users on 2/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/117:00 am
SOF
- MDW
2 stops18h 56m
Multiple Airlines
Fri 6/51:59 pm
MDW
- SOF
2 stops16h 01m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,232
This KLM deal was found by Cheapflights users on 2/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:00 am
SOF
- MDW
2 stops17h 25m
Multiple Airlines
Sat 8/222:00 pm
MDW
- SOF
2 stops16h 00m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$1,411
This KLM deal was found by Cheapflights users on 2/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:00 am
SOF
- MDW
2 stops18h 56m
Multiple Airlines
Thu 6/41:22 pm
MDW
- SOF
2 stops16h 38m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,458
Last-minute flights from Bulgaria to ChicagoDiscover last-minute flight deals from Bulgaria to Chicago. Data last updated February 27, 2026 and is based on user searches.
Discover last-minute flight deals from Bulgaria to Chicago. Data last updated February 27, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 2/25. 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 2/274:00 pm
VAR
- ORD
2 stops34h 41m
Multiple Airlines
Thu 3/512:50 pm
ORD
- VAR
2 stops18h 25m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,142
This Air France deal was found by Cheapflights users on 2/25. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:00 am
SOF
- MDW
2 stops18h 45m
Multiple Airlines
Sun 3/291:10 pm
MDW
- SOF
2 stops16h 50m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$1,038
This KLM deal was found by Cheapflights users on 2/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:00 am
SOF
- MDW
2 stops18h 37m
KLM
Wed 3/182:05 pm
MDW
- SOF
2 stops17h 00m
KLM
Deal found 2/26![KLM logo]()
$1,058
This Mytrip deal was found by Cheapflights users on 2/25. 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 3/169:25 pm
SOF
- ORD
2 stops30h 35m
Multiple Airlines
Wed 4/157:25 pm
ORD
- SOF
2 stops20h 45m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$686
This United Airlines deal was found by Cheapflights users on 2/25. 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.
Mon 3/166:10 am
SOF
- ORD
1 stop15h 15m
United Airlines
Wed 4/151:00 pm
ORD
- SOF
2 stops15h 10m
United Airlines
Deal found 2/25![United Airlines logo]()
$717
This Kiwi.com deal was found by Cheapflights users on 2/24. 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.
Thu 3/192:35 pm
SOF
- ORD
1 stop13h 25m
LOT
Sat 4/49:50 pm
ORD
- SOF
1 stop12h 10m
LOT
Deal found 2/24![LOT logo]()
$662
This Flighttix deal was found by Cheapflights users on 2/24. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:35 pm
SOF
- ORD
1 stop13h 30m
Multiple Airlines
Sat 4/43:45 pm
ORD
- SOF
2 stops18h 55m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$709
This United Airlines deal was found by Cheapflights users on 2/25. 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 3/192:35 pm
SOF
- ORD
1 stop13h 30m
United Airlines
Sat 4/49:40 pm
ORD
- SOF
1 stop13h 00m
United Airlines
Deal found 2/25![United Airlines logo]()
$719
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/197:00 am
SOF
- MDW
2 stops17h 54m
KLM
Sat 4/41:10 pm
MDW
- SOF
2 stops16h 50m
KLM
Deal found 2/23![KLM logo]()
$758
This Booking.com deal was found by Cheapflights users on 2/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/256:10 am
SOF
- ORD
1 stop21h 55m
Lufthansa
Wed 4/14:05 pm
ORD
- SOF
1 stop13h 20m
Lufthansa
Deal found 2/23![Lufthansa logo]()
$714
This United Airlines deal was found by Cheapflights users on 2/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:25 pm
SOF
- ORD
1 stop13h 40m
United Airlines
Wed 4/18:45 am
ORD
- SOF
2 stops19h 25m
United Airlines
Deal found 2/23![United Airlines logo]()
$718
This KLM deal was found by Cheapflights users on 2/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
SOF
- MDW
2 stops17h 54m
KLM
Wed 4/11:10 pm
MDW
- SOF
2 stops16h 50m
KLM
Deal found 2/23![KLM logo]()
$819
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 February 27, 2026.
Search for one-way flight options from Bulgaria to Chicago. Find affordable one-way fares based on user searches. Data last updated February 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:35 pm
SOF
- ORD
2 stops50h 40m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$324
This oojo deal was found by Cheapflights users on 2/24. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/212:10 pm
SOF
- ORD
2 stops33h 50m
TAP AIR PORTUGAL
Deal found 2/24![TAP AIR PORTUGAL logo]()
$448
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:40 pm
SOF
- ORD
3 stops37h 10m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:00 am
SOF
- ORD
3 stops22h 15m
Multiple Airlines
Deal found 2/26![Multiple Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 2/25. 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.
Sun 3/291:00 pm
SOF
- ORD
3 stops57h 30m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$482
This Air Serbia deal was found by Cheapflights users on 2/25. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/254:05 pm
SOF
- ORD
1 stop13h 10m
Air Serbia
Deal found 2/25![Air Serbia logo]()
$496
This Expedia deal was found by Cheapflights users on 2/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:10 pm
SOF
- ORD
1 stop26h 50m
British Airways
Deal found 2/23![British Airways logo]()
$505
This Kiwi.com deal was found by Cheapflights users on 2/23. 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.
Mon 8/310:30 pm
SOF
- MDW
3 stops43h 10m
Multiple Airlines
Deal found 2/23![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 2/24. 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.
Sun 8/166:15 pm
SOF
- MDW
3 stops44h 45m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$645
This KLM deal was found by Cheapflights users on 2/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:00 am
SOF
- MDW
2 stops19h 05m
KLM
Deal found 2/26![KLM logo]()
$800
This KLM deal was found by Cheapflights users on 2/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/247:00 am
SOF
- MDW
2 stops18h 40m
KLM
Deal found 2/24![KLM logo]()
$1,018
This KLM deal was found by Cheapflights users on 2/26. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
SOF
- MDW
2 stops17h 27m
KLM
Deal found 2/26![KLM logo]()
$1,218
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 February 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $653 (oojo) |
One-way from | $324 (Kiwi.com) |
Popular in | May |
Cheapest in | April |
Average price | $690 |
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 February 27, 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
SofiaChicago
SOF - ORD
SOFORD
Sofia
Fri 4/24
6:20 am-12:55 pm
1 stop14h 35m
Chicago O'Hare Intl
Sat 5/2
3:35 pm-12:10 pm
1 stop12h 35m
$717
SofiaChicago
SOF - ORD
SOFORD
Sofia
Fri 4/24
6:20 am-12:55 pm
1 stop14h 35m
Chicago O'Hare Intl
Sun 5/3
9:40 pm-11:00 pm
1 stop17h 20m
$717
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sat 5/9
6:20 am-2:50 pm
1 stop16h 30m
Chicago O'Hare Intl
Tue 6/2
6:30 pm-6:00 pm
1 stop15h 30m
$718
SofiaChicago
SOF - ORD
SOFORD
Sofia
Wed 3/25
2:25 pm-9:05 pm
1 stop13h 40m
Chicago O'Hare Intl
Wed 4/1
8:45 am-12:10 pm
2 stops19h 25m
$718
SofiaChicago
SOF - ORD
SOFORD
Sofia
Thu 5/14
6:30 am-2:50 pm
1 stop16h 20m
Chicago O'Hare Intl
Mon 5/25
6:30 pm-6:00 pm
1 stop15h 30m
$718
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sun 5/31
6:20 am-6:43 pm
2 stops44h 23m
Chicago O'Hare Intl
Thu 6/25
11:05 am-6:25 pm
2 stops23h 20m
$722
SofiaChicago
SOF - ORD
SOFORD
Sofia
Thu 3/19
2:35 pm-11:44 pm
2 stops16h 09m
Chicago O'Hare Intl
Sat 4/4
9:40 pm-6:40 pm
1 stop13h 00m
$727
SofiaChicago
SOF - ORD
SOFORD
Sofia
Mon 5/11
6:20 am-12:55 pm
1 stop14h 35m
Chicago O'Hare Intl
Thu 6/4
7:09 am-6:25 pm
2 stops27h 16m
$727
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 5/26
7:00 am-2:15 pm
1 stop15h 15m
Chicago O'Hare Intl
Sat 10/10
1:30 pm-2:00 pm
2 stops16h 30m
$730
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sat 4/11
4:05 pm-1:20 pm
1 stop29h 15m
Chicago O'Hare Intl
Sat 4/25
1:00 pm-3:20 pm
2 stops18h 20m
$732
Showing 1-10 of 43 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
SOF-MDW
VAR-ORD
BOJ-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 Bulgaria to Chicago
BG0-CHI
SOF-ORD
SOF-MDW
VAR-ORD
BOJ-ORD
What is the cheapest month to book a flight from Bulgaria to Chicago?
Currently, November is the cheapest month in which you can book a flight from Bulgaria to Chicago (average of $527). Flying from Bulgaria to Chicago in August is currently the most expensive (average of $670). 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.
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 February 27, 2026.
Peruse reviews from past customers who have flown with KLM, LOT, and United 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.
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
Food
7.3
Boarding
7.8
Entertainment
7.1
Crew
8.4
Comfort
7.6
Overall
7.7
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2026
EZE - SCL
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 locationsLansing
Merrillville
Hammond
Porter
Benton Harbor
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Chicago flight routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
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 February 27, 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 February 27, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 February 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$609 | Average$705 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$621 | Average$760 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$625 | Average$793 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$651 | Average$768 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$658 | Average$802 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$667 | Average$802 | FlexibilityNo cancel fee | On-time76% |