$309+ Cheap flights from Chicago (CHI) to Bulgaria
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SOF
Oct 6 — Oct 131
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Bulgaria with Cheapflights
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Cheapest flights from Chicago to BulgariaExplore the most affordable flight options available from Chicago to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
Explore the most affordable flight options available from Chicago to Bulgaria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 6, 2026.
This Justfly.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/58:10 pm -
1 stop28h 20m
Wed 10/2110:15 pm -
1 stop19h 25m
Deal found 9/6![Turkish Airlines logo]()
$696
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop28h 35m
Wed 10/213:50 pm -
1 stop25h 50m
Deal found 9/2![Turkish Airlines logo]()
$700
This Expedia deal was found by Cheapflights users on 9/3. 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 12/289:50 pm -
1 stop17h 05m
Wed 1/132:10 pm -
1 stop13h 55m
Deal found 9/3![Lufthansa logo]()
$704
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Tue 10/611:25 am -
1 stop13h 20m
Tue 10/203:50 pm -
1 stop25h 50m
Deal found 9/4![Turkish Airlines logo]()
$705
This Expedia deal was found by Cheapflights users on 9/3. 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 12/289:50 pm -
1 stop17h 05m
Wed 1/136:25 am -
2 stops21h 27m
Deal found 9/3![Multiple Airlines logo]()
$706
This Expedia deal was found by Cheapflights users on 9/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/299:50 pm -
1 stop14h 20m
Wed 1/139:05 pm -
1 stop24h 40m
Deal found 9/1![British Airways logo]()
$707
This Expedia deal was found by Cheapflights users on 9/3. 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.
Wed 12/303:45 pm -
2 stops13h 30m
Mon 3/13:00 pm -
1 stop33h 15m
Deal found 9/3![Multiple Airlines logo]()
$708
This Mytrip deal was found by Cheapflights users on 9/4. 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 10/197:25 pm -
3 stops34h 30m
Mon 10/265:00 am -
3 stops20h 20m
Deal found 9/4![Multiple Airlines logo]()
$709
This Expedia deal was found by Cheapflights users on 9/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/13:45 pm -
2 stops39h 20m
Tue 12/156:00 am -
1 stop20h 25m
Deal found 9/1![Multiple Airlines logo]()
$710
This Gotogate deal was found by Cheapflights users on 9/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:05 am -
2 stops22h 10m
Wed 12/162:10 pm -
1 stop13h 55m
Deal found 9/2![Multiple Airlines logo]()
$713
This Expedia deal was found by Cheapflights users on 9/4. 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 12/79:50 pm -
1 stop17h 05m
Mon 12/217:05 pm -
1 stop31h 20m
Deal found 9/4![Lufthansa logo]()
$715
This Mytrip deal was found by Cheapflights users on 8/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 pm -
2 stops21h 05m
Tue 12/15:25 pm -
2 stops30h 05m
Deal found 8/31![Multiple Airlines logo]()
$717
Best flights from Chicago to BulgariaDiscover carefully curated flight deals from Chicago to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
Discover carefully curated flight deals from Chicago to Bulgaria that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 6, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/1. 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.
Tue 3/211:45 am -
1 stop13h 05m
Wed 3/109:40 am -
1 stop17h 40m
Deal found 9/1![Turkish Airlines logo]()
$700
This United deal was found by Cheapflights users on 9/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/116:00 pm -
1 stop11h 15m
Fri 1/156:25 am -
2 stops20h 20m
Deal found 9/4![Multiple Airlines logo]()
$733
This Expedia deal was found by Cheapflights users on 9/3. 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.
Wed 2/179:50 pm -
2 stops33h 25m
Thu 4/159:20 am -
1 stop18h 35m
Deal found 9/3![Lufthansa logo]()
$736
This United Airlines deal was found by Cheapflights users on 9/4. 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 3/21:10 pm -
2 stops16h 05m
Wed 3/106:25 am -
2 stops16h 27m
Deal found 9/4![United Airlines logo]()
$738
This British Airways deal was found by Cheapflights users on 9/5. 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 10/268:30 pm -
2 stops40h 40m
Mon 11/95:15 pm -
2 stops31h 40m
Deal found 9/5![British Airways logo]()
$801
This Justfly.com deal was found by Cheapflights users on 9/5. 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 12/91:12 pm -
2 stops18h 03m
Tue 12/294:00 pm -
1 stop30h 00m
Deal found 9/5![Austrian Airlines logo]()
$811
This Expedia deal was found by Cheapflights users on 9/3. 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.
Wed 2/179:50 pm -
2 stops33h 25m
Thu 4/159:20 am -
2 stops34h 39m
Deal found 9/3![Multiple Airlines logo]()
$744
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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.
Tue 10/1311:25 am -
1 stop19h 35m
Mon 10/193:50 pm -
1 stop25h 50m
Deal found 9/3![Turkish Airlines logo]()
$765
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Sun 1/246:00 pm -
1 stop11h 15m
Sun 2/76:25 am -
2 stops16h 27m
Deal found 9/2![United Airlines logo]()
$783
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Sun 10/411:25 am -
1 stop19h 35m
Fri 2/269:40 am -
1 stop16h 40m
Deal found 9/5![Turkish Airlines logo]()
$774
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/101:30 pm -
2 stops15h 45m
Tue 11/176:25 am -
1 stop14h 45m
Deal found 9/3![United Airlines logo]()
$783
This United deal was found by Cheapflights users on 9/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:05 pm -
1 stop14h 35m
Tue 12/294:00 pm -
1 stop30h 00m
Deal found 9/4![Multiple Airlines logo]()
$806
This Justfly.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/53:35 pm -
2 stops39h 40m
Wed 10/214:00 pm -
2 stops28h 55m
Deal found 9/6![Lufthansa logo]()
$933
This United Airlines deal was found by Cheapflights users on 9/4. 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 12/131:57 pm -
2 stops24h 58m
Sun 1/106:00 am -
2 stops22h 40m
Deal found 9/4![United Airlines logo]()
$793
This Justfly.com deal was found by Cheapflights users on 9/5. 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.
Sat 10/38:10 pm -
1 stop34h 50m
Thu 2/254:00 pm -
1 stop34h 20m
Deal found 9/5![Turkish Airlines logo]()
$812
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/114:05 pm -
1 stop19h 30m
Sun 10/254:00 pm -
2 stops36h 05m
Deal found 9/4![Lufthansa logo]()
$941
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1510:28 am -
2 stops18h 57m
Thu 3/46:25 am -
1 stop16h 55m
Deal found 9/1![United Airlines logo]()
$795
This Orbitz deal was found by Cheapflights users on 9/4. 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 12/1610:05 am -
2 stops23h 15m
Wed 3/104:00 pm -
2 stops35h 52m
Deal found 9/4![Multiple Airlines logo]()
$893
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/118:10 pm -
1 stop28h 20m
Sun 10/2510:05 am -
1 stop31h 55m
Deal found 9/4![Turkish Airlines logo]()
$861
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/115:10 pm -
1 stop12h 30m
Sat 10/249:05 am -
2 stops18h 45m
Deal found 9/3![Multiple Airlines logo]()
$944
This Mytrip deal was found by Cheapflights users on 9/6. 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 10/511:25 am -
3 stops26h 10m
Wed 10/218:30 am -
3 stops33h 10m
Deal found 9/6![Multiple Airlines logo]()
$1,142
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sat 10/102:15 pm -
2 stops20h 45m
Sat 10/249:40 pm -
3 stops45h 20m
Deal found 9/3![Multiple Airlines logo]()
$1,149
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 10/1111:25 am -
2 stops25h 00m
Sun 10/259:25 pm -
2 stops28h 55m
Deal found 9/3![Multiple Airlines logo]()
$1,328
Last-minute flights from Chicago to BulgariaDiscover last-minute flight deals from Chicago to Bulgaria. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Bulgaria. Data last updated September 6, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/2. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop28h 35m
Wed 10/213:50 pm -
1 stop25h 50m
Deal found 9/2![Turkish Airlines logo]()
$700
This FlightHub deal was found by Cheapflights users on 9/2. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop16h 10m
Wed 10/149:10 pm -
1 stop20h 30m
Deal found 9/2![Turkish Airlines logo]()
$719
This Justfly.com deal was found by Cheapflights users on 9/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/218:10 pm -
1 stop34h 50m
Fri 10/1612:35 pm -
1 stop29h 05m
Deal found 9/2![Turkish Airlines logo]()
$735
This Turkish Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:10 pm -
1 stop34h 50m
Thu 11/129:45 pm -
1 stop20h 15m
Deal found 9/2![Turkish Airlines logo]()
$740
This Justfly.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/58:10 pm -
1 stop28h 20m
Wed 10/2110:15 pm -
1 stop19h 25m
Deal found 9/6![Turkish Airlines logo]()
$696
This Justfly.com deal was found by Cheapflights users on 9/3. 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.
Mon 10/58:10 pm -
1 stop16h 10m
Wed 10/149:10 pm -
1 stop20h 30m
Deal found 9/3![Turkish Airlines logo]()
$725
This Justfly.com deal was found by Cheapflights users on 9/4. 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.
Tue 10/611:25 am -
1 stop13h 20m
Tue 10/203:50 pm -
1 stop25h 50m
Deal found 9/4![Turkish Airlines logo]()
$705
This Gotogate deal was found by Cheapflights users on 9/4. 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 10/1111:25 am -
1 stop13h 20m
Sun 10/259:45 pm -
1 stop20h 15m
Deal found 9/4![Turkish Airlines logo]()
$734
This Mytrip deal was found by Cheapflights users on 9/4. 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 10/197:25 pm -
3 stops34h 30m
Mon 10/265:00 am -
3 stops20h 20m
Deal found 9/4![Multiple Airlines logo]()
$709
This oojo deal was found by Cheapflights users on 9/2. 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.
Fri 10/235:10 pm -
1 stop16h 50m
Fri 11/62:35 pm -
1 stop13h 20m
Deal found 9/2![LOT logo]()
$726
This Mytrip deal was found by Cheapflights users on 9/5. 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.
Thu 10/297:30 pm -
2 stops21h 05m
Thu 11/124:50 pm -
2 stops30h 40m
Deal found 9/5![Multiple Airlines logo]()
$742
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:50 pm -
1 stop12h 05m
Sat 11/212:35 pm -
1 stop13h 20m
Deal found 9/1![LOT logo]()
$729
One-way flights from Chicago to BulgariaSearch for one-way flight options from Chicago to Bulgaria. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
Search for one-way flight options from Chicago to Bulgaria. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/1810:25 pm -
3 stops33h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
3 stops33h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/197:25 pm -
3 stops34h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/237:25 pm -
3 stops44h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/17:25 pm -
3 stops35h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 9/2. 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.
Tue 11/176:30 pm -
3 stops42h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$323
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/307:30 pm -
3 stops30h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:30 pm -
3 stops34h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$326
This Expedia deal was found by Cheapflights users on 9/4. 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.
Tue 12/84:31 pm -
2 stops19h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![British Airways logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:30 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Multiple Airlines logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 12/79:23 pm -
3 stops32h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 12/99:23 pm -
3 stops32h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Multiple Airlines logo]()
$416
Find flight deals from Chicago to Bulgaria
Keep the following information in mind while searching for Chicago to Bulgaria flight deals. Data was last updated September 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $700 (CheapOair) |
One-way from | $309 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $786 |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Bulgaria that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 6, 2026.
Use the filters below to find and compare flights from Chicago to Bulgaria that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 12/1
9:50 pm-8:10 pm
1 stop14h 20m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$330
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 12/1
6:30 pm-10:35 am
2 stops32h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$330
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 10/20
7:25 pm-11:10 am
3 stops31h 45m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$330
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Fri 10/30
7:30 pm-10:00 am
2 stops31h 30m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$333
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 11/17
6:30 pm-10:35 am
2 stops32h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$340
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 12/9
6:30 pm-1:05 pm
3 stops34h 35m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$341
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 12/7
6:30 pm-12:50 pm
3 stops34h 20m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$342
ChicagoSofia
MDW Chicago Midway - SOF Sofia
MDWSOF
Chicago Midway
Mon 12/7
9:23 pm-1:55 pm
3 stops32h 32m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$359
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 12/29
5:45 pm-9:55 am
3 stops56h 10m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$379
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sun 9/13
10:25 pm-10:30 pm
2 stops40h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$401
Showing 1-10 of 39 resultsSorted by cheapest first
Best time to book a flight from Chicago to Bulgaria
Have a flexible travel schedule? Discover the best time to fly to Bulgaria from Chicago with our price prediction graph.
ORD-VAR
ORD-SOF
ORD-BOJ
MDW-SOF
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 Chicago to Bulgaria
CHI-BG0
ORD-VAR
ORD-SOF
ORD-BOJ
MDW-SOF
What is the cheapest month to book a flight from Chicago to Bulgaria?
Currently, February is the cheapest month in which you can book a flight from Chicago to Bulgaria (average of $593). Flying from Chicago to Bulgaria in June is currently the most expensive (average of $1,157). 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 Chicago to Bulgaria?
To ensure you get the cheapest price possible for a flight from Chicago to Bulgaria, you should look to book at least 41 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 Bulgaria
Get insights into the airlines that provide service to Bulgaria. 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 Bulgaria. Reviews last updated September 6, 2026.
Peruse reviews from past customers who have flown with LOT,SWISS, andTurkish Airlines from Chicago to Bulgaria 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
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Food
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Food
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Food
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Food
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Food
7.2
Boarding
7.6
Entertainment
6.9
Crew
8.2
Comfort
7.5
Overall
7.5
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Related info for your journey
Find useful and relevant information for your journey from Chicago to Bulgaria. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Chicago to Bulgaria
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Complete your trip
Complete your trip to Bulgaria by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Chicago to Bulgaria by cabin class
Find flights from Chicago to Bulgaria, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Bulgaria flights
Browse other Chicago and Bulgaria flight options. Last updated on September 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Bulgaria flights
Consider these flights traveling from Chicago to Bulgaria.
Fly to Bulgaria regions
Consider these flights traveling to Bulgaria regions.
Top 10 airlines flying from Chicago to Bulgaria
Discover the top 10 airlines that operate flights from Chicago to Bulgaria. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$451 | Average$1,036 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$525 | Average$805 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$582 | Average$994 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$585 | Average$870 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$593 | Average$840 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$608 | Average$1,049 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$609 | Average$727 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$610 | Average$873 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$613 | Average$838 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$701 | Average$941 | FlexibilityNo cancel fee | On-time78% |