$319+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SOF
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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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 October 19, 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 October 19, 2026.
This Justfly.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/29:15 pm -
1 stop27h 35m
Sun 11/159:40 am -
1 stop32h 20m
Deal found 10/15![Turkish Airlines logo]()
$638
This oojo deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/28:15 pm -
1 stop16h 35m
Wed 12/99:40 am -
1 stop32h 20m
Deal found 10/18![Turkish Airlines logo]()
$643
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$705
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Tue 11/39:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$709
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$710
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$711
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals ”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:15 pm -
1 stop16h 35m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$713
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:15 pm -
1 stop16h 35m
Sat 11/79:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$716
This deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/15![Turkish Airlines logo]()
$718
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm -
1 stop16h 10m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$720
This FlightHub deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 10/198:10 pm -
1 stop28h 35m
Thu 11/129:40 pm -
1 stop20h 20m
Deal found 10/14![Turkish Airlines logo]()
$723
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/303:55 pm -
1 stop13h 45m
Sat 12/1210:10 pm -
2 stops25h 20m
Deal found 10/17![Multiple Airlines logo]()
$724
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 October 19, 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 October 19, 2026.
This United deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 2/1510:25 am -
2 stops18h 50m
Mon 3/13:00 pm -
1 stop33h 15m
Deal found 10/17![Multiple Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 1/1310:30 am -
2 stops18h 45m
Fri 1/156:25 am -
2 stops20h 35m
Deal found 10/15![United Airlines logo]()
$711
This Turkish Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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.
Wed 11/49:15 pm -
1 stop29h 50m
Mon 11/169:40 pm -
1 stop28h 40m
Deal found 10/14![Turkish Airlines logo]()
$729
This Ovago deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:35 pm -
2 stops32h 40m
Wed 12/94:00 pm -
2 stops29h 10m
Deal found 10/18![Lufthansa logo]()
$884
This United deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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.
Tue 2/1611:45 am -
2 stops17h 30m
Tue 3/26:25 am -
2 stops16h 27m
Deal found 10/18![Multiple Airlines logo]()
$713
This Turkish Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:45 pm -
1 stop18h 25m
Wed 11/189:30 am -
1 stop16h 50m
Deal found 10/14![Turkish Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/186:00 pm -
1 stop11h 15m
Fri 12/116:25 am -
1 stop14h 45m
Deal found 10/15![United Airlines logo]()
$777
This Turkish Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:45 pm -
1 stop11h 55m
Thu 11/194:00 pm -
1 stop34h 20m
Deal found 10/14![Turkish Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 3/138:50 pm -
2 stops42h 10m
Sun 3/286:10 am -
1 stop15h 50m
Deal found 10/18![United Airlines logo]()
$778
This Expedia deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 1/57:55 pm -
2 stops38h 20m
Wed 2/34:00 pm -
2 stops33h 05m
Deal found 10/15![Multiple Airlines logo]()
$805
This Turkish Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:45 pm -
1 stop11h 55m
Mon 11/164:00 pm -
1 stop26h 00m
Deal found 10/14![Turkish Airlines logo]()
$769
This United Airlines deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 3/209:30 pm -
2 stops32h 55m
Sat 4/36:20 am -
2 stops21h 32m
Deal found 10/17![United Airlines logo]()
$783
This Justfly.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/29:50 pm -
2 stops33h 25m
Sun 11/154:00 pm -
2 stops36h 05m
Deal found 10/15![Lufthansa logo]()
$1,009
This Turkish Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/911:45 am -
1 stop15h 20m
Tue 1/124:00 pm -
1 stop26h 00m
Deal found 10/15![Turkish Airlines logo]()
$775
This Justfly.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/29:50 pm -
2 stops33h 25m
Sun 11/154:00 pm -
1 stop30h 00m
Deal found 10/15![Multiple Airlines logo]()
$1,005
This Mytrip deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 12/26:30 pm -
3 stops24h 00m
Wed 12/99:35 am -
2 stops32h 25m
Deal found 10/18![Multiple Airlines logo]()
$1,043
This Ovago deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:10 pm -
2 stops37h 05m
Fri 11/134:00 pm -
2 stops27h 05m
Deal found 10/18![Multiple Airlines logo]()
$1,135
This Mytrip deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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.
Tue 1/511:45 am -
3 stops25h 05m
Wed 2/39:25 pm -
3 stops27h 55m
Deal found 10/15![Multiple Airlines logo]()
$1,145
Last-minute flights from Chicago to BulgariaDiscover last-minute flight deals from Chicago to Bulgaria. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Bulgaria. Data last updated October 19, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 10/198:10 pm -
1 stop28h 35m
Thu 11/129:40 pm -
1 stop20h 20m
Deal found 10/14![Turkish Airlines logo]()
$723
This deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/15![Turkish Airlines logo]()
$718
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$705
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Tue 11/39:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$709
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$710
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:10 pm -
1 stop16h 10m
Thu 11/59:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$725
This deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm -
1 stop16h 10m
Mon 11/29:30 am -
1 stop17h 50m
Deal found 10/16![Turkish Airlines logo]()
$711
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm -
1 stop16h 10m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$720
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:15 pm -
1 stop16h 35m
Wed 11/49:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$713
This deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/249:15 pm -
1 stop16h 35m
Sat 11/79:30 am -
1 stop17h 50m
Deal found 10/17![Turkish Airlines logo]()
$716
This Justfly.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/29:15 pm -
1 stop27h 35m
Sun 11/159:40 am -
1 stop32h 20m
Deal found 10/15![Turkish Airlines logo]()
$638
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 11/303:55 pm -
1 stop13h 45m
Sat 12/1210:10 pm -
2 stops25h 20m
Deal found 10/17![Multiple Airlines logo]()
$724
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 October 19, 2026.
Search for one-way flight options from Chicago to Bulgaria. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 3/26:30 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$319
This British Airways deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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.
Sun 2/285:10 pm -
1 stop15h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![British Airways logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 11/256:30 pm -
3 stops18h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$325
This FlightHub deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 3/18:53 pm -
2 stops39h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![British Airways logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 10/19. Clicking the “Pick Dates” 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 11/246:30 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![Multiple Airlines logo]()
$330
This United deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” 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 3/19:50 pm -
1 stop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Multiple Airlines logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” 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 11/183:55 pm -
1 stop22h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/109:50 pm -
1 stop17h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Lufthansa logo]()
$334
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” 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 1/122:26 pm -
2 stops24h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![United Airlines logo]()
$336
This Kiwi.com deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/109:00 pm -
2 stops38h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Multiple Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” 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 10/277:30 pm -
2 stops32h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Multiple Airlines logo]()
$347
This Kiwi.com deal was found by Cheapflights users on 10/17. Clicking the “Pick Dates” 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 10/246:05 pm -
3 stops48h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/17![Multiple Airlines logo]()
$490
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 October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $638 (Justfly.com) |
One-way from | $319 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $790 |
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 October 19, 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
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 11/25
6:30 pm-9:05 pm
3 stops18h 35m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$325
Quickest round-trip
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 1/12
9:50 pm-6:20 pm
1 stop12h 30m
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
Mon 3/1
9:50 pm-10:55 pm
1 stop17h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$332
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sun 1/10
9:50 pm-10:55 pm
1 stop17h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$334
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sun 1/10
8:10 pm-7:55 pm
3 stops39h 45m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$334
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 1/12
2:26 pm-10:55 pm
2 stops24h 29m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$336
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Wed 11/18
3:55 pm-8:25 pm
2 stops20h 30m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$346
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 3/1
7:00 am-11:00 pm
3 stops32h 00m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$348
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sun 10/25
12:45 pm-8:40 am
1 stop12h 55m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$369
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Fri 2/26
9:50 pm-10:55 pm
1 stop17h 05m
Sofia
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$382
Showing 1-10 of 32 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-SOF
ORD-VAR
ORD-BOJ
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-SOF
ORD-VAR
ORD-BOJ
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 $1,179). 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 October 19, 2026.
Peruse reviews from past customers who have flown with LOT,Turkish Airlines, andUnited 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.
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
Reviews
1 / 20
10.0
ExcellentRami,Sep 2025
LAX - WAW
Comfort
7.5
Crew
8.2
Entertainment
6.9
Food
7.2
Overall
7.6
Boarding
7.6
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
See prices for flight routes from nearby airports that may be better suited for you.
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 October 19, 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 October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$450 | Average$1,036 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$526 | Average$863 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$573 | Average$842 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$583 | Average$895 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$586 | Average$991 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$593 | Average$938 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$604 | Average$1,053 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$613 | Average$860 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$615 | Average$903 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$726 | Average$875 | FlexibilityNo cancel fee | On-timeN/A |