$400+ Cheap flights from Sofia (SOF) to O'Hare Intl (ORD)
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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
May 31 — Jun 71
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Sofia to O'Hare Intl
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Best
Last-minute
One-way
Cheapest flights from Sofia to O'Hare IntlExplore the most affordable flight options available from Sofia to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
Explore the most affordable flight options available from Sofia to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2026.
This oojo deal was found by Cheapflights users on 4/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:45 pm
SOF
- ORD
1 stop33h 05m
LOT
Tue 8/189:50 pm
ORD
- SOF
1 stop20h 05m
LOT
Deal found 4/27![LOT logo]()
$726
This FlightHub deal was found by Cheapflights users on 4/27. 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 7/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Thu 8/2011:25 am
ORD
- SOF
1 stop17h 50m
Turkish Airlines
Deal found 4/27![Turkish Airlines logo]()
$740
This FlightHub deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/89:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Thu 8/138:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$741
This Justfly.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/213:50 pm
SOF
- ORD
1 stop25h 50m
Turkish Airlines
Tue 7/78:10 pm
ORD
- SOF
1 stop28h 35m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$745
This Justfly.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Thu 9/105:25 am
SOF
- ORD
1 stop17h 45m
LOT
Tue 9/299:50 pm
ORD
- SOF
1 stop20h 05m
LOT
Deal found 4/28![LOT logo]()
$746
This oojo deal was found by Cheapflights users on 4/26. 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 7/92:35 pm
SOF
- ORD
1 stop13h 15m
LOT
Mon 8/179:50 pm
ORD
- SOF
1 stop20h 05m
LOT
Deal found 4/26![LOT logo]()
$753
This FlightHub deal was found by Cheapflights users on 4/27. 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.
Mon 11/24:00 pm
SOF
- ORD
1 stop27h 05m
Turkish Airlines
Sat 11/2111:50 am
ORD
- SOF
1 stop25h 00m
Turkish Airlines
Deal found 4/27![Turkish Airlines logo]()
$762
Best flights from Sofia to O'Hare IntlDiscover carefully curated flight deals from Sofia to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
Discover carefully curated flight deals from Sofia to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 1, 2026.
This British Airways deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/99:25 pm
SOF
- ORD
1 stop26h 30m
British Airways
Wed 9/304:51 pm
ORD
- SOF
2 stops36h 34m
British Airways
Deal found 4/30![British Airways logo]()
$780
This KLM deal was found by Cheapflights users on 4/27. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
SOF
- ORD
2 stops19h 07m
Multiple Airlines
Wed 9/301:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$815
This Turkish Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/62:05 pm
SOF
- ORD
1 stop27h 35m
Turkish Airlines
Wed 9/3011:25 am
ORD
- SOF
1 stop19h 35m
Turkish Airlines
Deal found 4/28![Turkish Airlines logo]()
$831
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:10 am
SOF
- ORD
1 stop12h 50m
United Airlines
Fri 8/2112:57 pm
ORD
- SOF
2 stops15h 13m
United Airlines
Deal found 4/30![United Airlines logo]()
$853
This KLM deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/87:00 am
SOF
- ORD
2 stops18h 41m
Multiple Airlines
Wed 9/301:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$817
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:20 am
SOF
- ORD
1 stop14h 35m
United Airlines
Sat 6/206:00 pm
ORD
- SOF
1 stop21h 15m
United Airlines
Deal found 4/30![United Airlines logo]()
$854
This KLM deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/87:00 am
SOF
- ORD
2 stops17h 36m
Multiple Airlines
Tue 9/291:30 pm
ORD
- SOF
2 stops16h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$817
This United Airlines deal was found by Cheapflights users on 4/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:20 am
SOF
- ORD
1 stop12h 40m
United Airlines
Fri 8/286:30 pm
ORD
- SOF
1 stop20h 00m
United Airlines
Deal found 4/27![United Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 am
SOF
- ORD
1 stop14h 45m
United Airlines
Mon 6/156:00 pm
ORD
- SOF
1 stop21h 15m
United Airlines
Deal found 4/30![United Airlines logo]()
$854
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:10 am
SOF
- ORD
1 stop14h 45m
United Airlines
Tue 6/163:53 pm
ORD
- SOF
2 stops18h 07m
United Airlines
Deal found 4/30![United Airlines logo]()
$855
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:30 am
SOF
- ORD
1 stop16h 25m
United Airlines
Tue 6/163:53 pm
ORD
- SOF
2 stops18h 07m
United Airlines
Deal found 4/30![United Airlines logo]()
$855
Last-minute flights from Sofia to O'Hare IntlDiscover last-minute flight deals from Sofia to O'Hare Intl. Data last updated May 1, 2026 and is based on user searches.
Discover last-minute flight deals from Sofia to O'Hare Intl. Data last updated May 1, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Wed 3/3111:25 am
ORD
- SOF
1 stop24h 50m
Turkish Airlines
Deal found 4/29![Turkish Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 4/27. 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 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 5/2510:50 am
ORD
- SOF
2 stops16h 05m
United Airlines
Deal found 4/27![United Airlines logo]()
$858
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/196:45 pm
SOF
- ORD
1 stop33h 05m
LOT
Tue 6/309:50 pm
ORD
- SOF
1 stop19h 55m
LOT
Deal found 4/28![LOT logo]()
$854
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:20 am
SOF
- ORD
2 stops22h 40m
United Airlines
Fri 5/297:33 am
ORD
- SOF
2 stops27h 07m
United Airlines
Deal found 4/29![United Airlines logo]()
$859
This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Tue 5/269:05 pm
SOF
- ORD
1 stop20h 35m
Turkish Airlines
Fri 11/278:20 pm
ORD
- SOF
1 stop16h 30m
Turkish Airlines
Deal found 4/28![Turkish Airlines logo]()
$746
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:45 pm
SOF
- ORD
1 stop33h 05m
LOT
Mon 6/155:10 pm
ORD
- SOF
1 stop12h 40m
LOT
Deal found 4/30![LOT logo]()
$852
This LOT deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:45 pm
SOF
- ORD
2 stops28h 25m
LOT
Thu 6/189:50 pm
ORD
- SOF
1 stop19h 55m
LOT
Deal found 4/30![LOT logo]()
$856
This United Airlines deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/318:00 am
SOF
- ORD
1 stop13h 20m
United Airlines
Mon 6/156:00 pm
ORD
- SOF
1 stop21h 15m
United Airlines
Deal found 4/30![United Airlines logo]()
$864
One-way flights from Sofia to O'Hare IntlSearch for one-way flight options from Sofia to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
Search for one-way flight options from Sofia to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated May 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:45 pm
SOF
- ORD
3 stops48h 55m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$400
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:05 am
SOF
- ORD
3 stops39h 45m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Sat 5/168:55 pm
SOF
- ORD
3 stops51h 45m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/315:00 pm
SOF
- ORD
3 stops32h 50m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:05 pm
SOF
- ORD
3 stops33h 45m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 10/59:20 am
SOF
- ORD
3 stops40h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 10/125:45 am
SOF
- ORD
3 stops44h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$435
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Fri 5/156:00 am
SOF
- ORD
3 stops25h 56m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/206:30 am
SOF
- ORD
3 stops42h 10m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$447
Find flight deals from Sofia to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $726 (oojo) |
One-way from | $400 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $773 |
Cheapflights Fare Finder
Customize your flight search to find flights from Sofia to O'Hare Intl 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 May 1, 2026.
Use the filters below to find and compare flights from Sofia to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SofiaChicago
SOF - ORD
SOFORD
Sofia
Wed 9/9
9:25 pm-3:55 pm
1 stop26h 30m
Chicago O'Hare Intl
Wed 9/30
4:51 pm-1:25 pm
2 stops36h 34m
$780
SofiaChicago
SOF - ORD
SOFORD
Sofia
Wed 9/9
7:00 am-6:07 pm
2 stops19h 07m
Chicago O'Hare Intl
Wed 9/30
1:30 pm-2:00 pm
2 stops16h 30m
$815
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 9/8
7:00 am-5:41 pm
2 stops18h 41m
Chicago O'Hare Intl
Wed 9/30
1:30 pm-2:00 pm
2 stops16h 30m
$817
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 9/8
7:00 am-4:36 pm
2 stops17h 36m
Chicago O'Hare Intl
Tue 9/29
1:30 pm-2:00 pm
2 stops16h 30m
$817
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sun 9/6
2:05 pm-9:40 am
1 stop27h 35m
Chicago O'Hare Intl
Wed 9/30
11:25 am-3:00 pm
1 stop19h 35m
$831
Quickest round-trip
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 7/21
6:10 am-11:00 am
1 stop12h 50m
Chicago O'Hare Intl
Fri 8/21
12:57 pm-12:10 pm
2 stops15h 13m
$853
SofiaChicago
SOF - ORD
SOFORD
Sofia
Fri 6/5
6:20 am-12:55 pm
1 stop14h 35m
Chicago O'Hare Intl
Sat 6/20
6:00 pm-11:15 pm
1 stop21h 15m
$854
SofiaChicago
SOF - ORD
SOFORD
Sofia
Sat 7/11
6:20 am-11:00 am
1 stop12h 40m
Chicago O'Hare Intl
Fri 8/28
6:30 pm-10:30 pm
1 stop20h 00m
$854
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 6/2
6:10 am-12:55 pm
1 stop14h 45m
Chicago O'Hare Intl
Mon 6/15
6:00 pm-11:15 pm
1 stop21h 15m
$854
SofiaChicago
SOF - ORD
SOFORD
Sofia
Tue 6/2
6:10 am-12:55 pm
1 stop14h 45m
Chicago O'Hare Intl
Tue 6/16
3:53 pm-6:00 pm
2 stops18h 07m
$855
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Sofia to O'Hare Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Sofia to O'Hare Intl in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Sofia-Chicago O'Hare Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sofia-Chicago O'Hare Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sofia-Chicago O'Hare Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Sofia-Chicago O'Hare Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Sofia-Chicago O'Hare Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Sofia to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Sofia with our price prediction graph.
SOF-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 Sofia to Chicago O'Hare Intl Airport
Prices
More
How far ahead should I book a flight from Sofia to Chicago O'Hare Intl Airport?
To ensure you get the cheapest price possible for a flight from Sofia to Chicago O'Hare Intl Airport, you should look to book at least 54 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.
What is the cheapest month to book a flight from Sofia to Chicago O'Hare Intl Airport?
Currently, November is the cheapest month in which you can book a flight from Sofia to Chicago O'Hare Intl Airport (average of $693). Flying from Sofia to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $847). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Sofia to Chicago O'Hare Intl Airport?
What’s the top layover airport for flights from Sofia to Chicago O'Hare Intl Airport?
Share of 1-stop round-trip flights from Sofia to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Warsaw (WAW) – chosen by Cheapflights users on 50% of 1-stop itineraries from Sofia to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Sofia to Chicago O'Hare Intl Airport?
Average round-trip fare for 1-stop flights from Sofia to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Warsaw (WAW) is the most affordable 1-stop option, with an average round-trip price of $652.
What’s the fastest layover option from Sofia to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from Sofia to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Warsaw (WAW) have the shortest average one-way travel time for 1-stop routes: 13h 20m.
Which airport typically offers the quickest layover for flights from Sofia to Chicago O'Hare Intl Airport?
Average layover duration for 1-stop one-way flights from Sofia to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Warsaw (WAW) offer the fastest connection on this route, with an average layover time of 1h 05m.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated May 1, 2026.
See what other customers who have flown with KLM,LOT, andTurkish Airlines from Sofia to Chicago O'Hare Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Overall
7.8
Food
7.3
Boarding
7.8
Crew
8.4
Comfort
7.7
Entertainment
7.1
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Sofia to O'Hare Intl. 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 O'Hare Intl Airport?
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Oakbrook Terrace
Benton Harbor
Hoffman Estates
Des Plaines
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South Holland
Libertyville
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Top 6 airlines flying from Sofia to O'Hare Intl
Discover the top 6 airlines that operate flights from Sofia to O'Hare Intl. 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 May 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$616 | Average$748 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$618 | Average$743 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$644 | Average$769 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$654 | Average$866 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$685 | Average$778 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$710 | Average$828 | FlexibilityNo cancel fee | On-time76% |