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O'Hare Intl

$324+ Cheap flights from Bulgaria 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Mar 31 — Apr 71
Tue 3/31
Tue 4/7
1 adult, Economy
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Cheap flight deals from Bulgaria to O'Hare Intl

Cheapest flights from Bulgaria to O'Hare Intl
Explore the most affordable flight options available from Bulgaria to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 1, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:30 am
SOF
-
ORD
1 stop17h 40m
LOT
Mon 7/209:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/26$667
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:35 pm
SOF
-
ORD
1 stop13h 25m
LOT
Sat 4/49:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/25$671
This oojo deal was found by Cheapflights users on 2/28. 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.
Thu 4/235:25 am
SOF
-
ORD
1 stop22h 25m
LOT
Fri 8/285:10 pm
ORD
-
SOF
2 stops16h 50m
LOT
Deal found 2/28$672
This FlightHub deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:45 pm
SOF
-
ORD
1 stop28h 25m
LOT
Wed 10/79:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/26$673
This FlightHub deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Thu 7/309:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/27$674
This Gotogate deal was found by Cheapflights users on 2/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:25 am
SOF
-
ORD
1 stop17h 45m
LOT
Sat 4/259:50 pm
ORD
-
SOF
1 stop32h 00m
LOT
Deal found 2/28$677
This oojo deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/42:35 pm
SOF
-
ORD
2 stops32h 35m
LOT
Thu 7/169:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/26$678
This oojo deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:35 pm
SOF
-
ORD
1 stop33h 25m
LOT
Mon 3/910:55 pm
ORD
-
SOF
1 stop31h 55m
LOT
Deal found 2/27$679
This LOT deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LOT is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/32:35 pm
SOF
-
ORD
1 stop13h 15m
LOT
Wed 7/299:50 pm
ORD
-
SOF
1 stop12h 10m
LOT
Deal found 2/25$680
This oojo deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/22:35 pm
SOF
-
ORD
1 stop13h 15m
LOT
Fri 7/318:10 pm
ORD
-
SOF
1 stop33h 40m
LOT
Deal found 2/26$683
This Mytrip deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/169:25 pm
SOF
-
ORD
2 stops30h 35m
Multiple Airlines
Wed 4/157:25 pm
ORD
-
SOF
2 stops20h 45m
Multiple Airlines
Deal found 2/25$686
This Travelocity deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:20 am
VAR
-
ORD
1 stop18h 35m
Multiple Airlines
Fri 4/244:20 pm
ORD
-
VAR
1 stop14h 55m
Multiple Airlines
Deal found 2/27$724

Find flight deals from Bulgaria to O'Hare Intl

Keep the following information in mind while searching for Bulgaria to O'Hare Intl flight deals. Data was last updated March 1, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$667
(Kiwi.com)

One-way from

$324
(Kiwi.com)

Popular in

May

Cheapest in

April

Average price

$725
Provider with most accurate pricing for Sofia-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sofia-Chicago (CHI) flights.
Search Deals
From Bulgaria to Chicago O'Hare Intl
Search Deals
One-way flight from Bulgaria to Chicago O'Hare Intl
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Bulgaria 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 March 1, 2026.
Use the filters below to find and compare flights from Bulgaria to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Fri 5/1

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Tue 7/28

9:40 pm-11:00 pm

1 stop17h 20m

$719

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 3/11

6:10 am-2:25 pm

1 stop15h 15m

Chicago O'Hare Intl

Thu 4/30

7:30 am-11:10 am

2 stops19h 40m

$720

VarnaChicago

VAR - ORD

VARORD

Varna

Sat 4/18

9:20 am-7:55 pm

1 stop18h 35m

Chicago O'Hare Intl

Fri 4/24

4:20 pm-3:15 pm

1 stop14h 55m

$724

SofiaChicago

SOF - ORD

SOFORD

Sofia

Tue 5/26

7:00 am-2:15 pm

1 stop15h 15m

Chicago O'Hare Intl

Sat 10/10

1:30 pm-2:00 pm

2 stops16h 30m

$730

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 3/16

6:10 am-2:25 pm

1 stop15h 15m

Chicago O'Hare Intl

Tue 6/9

11:03 am-1:05 pm

2 stops18h 02m

$750

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/4

6:30 am-7:55 pm

1 stop21h 25m

Chicago O'Hare Intl

Thu 7/30

11:03 am-11:10 am

2 stops16h 07m

$754

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/4

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Sat 8/1

3:10 pm-11:00 am

1 stop11h 50m

$754

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 6/4

2:10 pm-7:55 pm

1 stop13h 45m

Chicago O'Hare Intl

Fri 7/31

6:30 am-10:50 am

2 stops20h 20m

$754

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 6/6

6:20 am-11:26 pm

2 stops25h 06m

Chicago O'Hare Intl

Sat 7/11

3:10 pm-11:00 am

1 stop11h 50m

$761

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sat 6/6

6:20 am-5:02 pm

2 stops18h 42m

Chicago O'Hare Intl

Sat 8/8

3:35 pm-12:10 pm

1 stop12h 35m

$764

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Bulgaria to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Bulgaria with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Bulgaria to Chicago O'Hare Intl Airport

What is the cheapest month to book a flight from Bulgaria to Chicago O'Hare Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $527). Flying from Bulgaria to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $670). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing 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 March 1, 2026.
Read reviews from past customers who have flown KLM, LOT, and United Airlines from Bulgaria to Chicago O'Hare Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.7
Good
1,461 reviews
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
LOT
7.5
Good
1,182 reviews
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,366 reviews
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Turkish Airlines
7.3
Good
4,239 reviews
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,818 reviews
KLM
7.7
Good
1,461 reviews

Entertainment

7.1

Comfort

7.6

Overall

7.7

Boarding

7.8

Crew

8.4

Food

7.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from Bulgaria 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.

  • How long is the flight from Bulgaria to Chicago O'Hare Intl Airport?

    There are many flights that can get you from Bulgaria to Chicago O'Hare Intl Airport in 17h 40m. Fly via LOT, Austrian Airlines, or Lufthansa to get the fastest option. The distance from Bulgaria to Chicago O'Hare Intl Airport is about 5194 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Bulgaria to Chicago O'Hare Intl Airport one-way?

    For one-way options, check prices for Air Serbia. According to our data, you can fly for as low as $388. Users have also found prices from $495 and $636 on Turkish Airlines and Lufthansa, respectively.

  • What are the most popular routes from Bulgaria to Chicago O'Hare Intl Airport?

    While some choose either Varna - Chicago O'Hare Intl or Bourgas - Chicago O'Hare Intl, Sofia - Chicago O'Hare Intl is the most popular route from Bulgaria to Chicago O'Hare Intl Airport.

  • Can I find deals for flights from Bulgaria to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Bulgaria to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Bulgaria to O'Hare Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bulgaria to O'Hare Intl.

  • Can I find deals for business class flights from Bulgaria to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Bulgaria to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bulgaria to Chicago O'Hare Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $527). Flying from Bulgaria to Chicago O'Hare Intl Airport in August is currently the most expensive (average of $670). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Gurnee
Naperville
Hoffman Estates
Beloit
Delavan
Des Plaines
Elgin
Downers Grove
Elk Grove Village
Skokie
Oak Brook
South Holland
Libertyville
Oakbrook Terrace
Lake Geneva
Waukegan
Bridgeview
Kenosha

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Bulgaria to O'Hare Intl

Discover the top 6 airlines that operate flights from Bulgaria 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 March 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
LOTCheapest$614Average$708FlexibilityNo cancel feeOn-time81%
KLMCheapest$621Average$760FlexibilityNo cancel feeOn-time75%
Turkish AirlinesCheapest$625Average$794FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$651Average$767FlexibilityNo cancel feeOn-time69%
Austrian AirlinesCheapest$658Average$797FlexibilityNo cancel feeOn-time78%
LufthansaCheapest$669Average$816FlexibilityNo cancel feeOn-time76%

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