HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
O'Hare Intl

$545+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — ORD
Jun 28 — Jul 51
Sat 6/28
Sat 7/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Bulgaria to O'Hare Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Bulgaria to O'Hare Intl

Keep the following information in mind while searching for Bulgaria to O'Hare Intl flight deals. Data was last updated June 23, 2025.

Round-trip from

$663
(oojo)

One-way from

$545
(Kiwi.com)

Popular in

May

Cheapest in

November

Average price

$743
From Bulgaria to Chicago O'Hare Intl
Search Deals
One-way flight from Bulgaria to Chicago O'Hare Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

Find 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 June 23, 2025.

This oojo deal was found by Cheapflights users on 6/21. 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 9/155:20 amSOF - ORD
1 stop22h 20mLOT
Tue 9/305:10 pmORD - SOF
2 stops24h 50mLOT
Deal found 6/21$663
This Gotogate deal was found by Cheapflights users on 6/22. 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 7/136:00 pmSOF - ORD
1 stop27h 10mITA Airways
Sun 7/273:00 pmORD - SOF
1 stop13h 05mITA Airways
Deal found 6/22$670
This KLM deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:00 amSOF - ORD
2 stops17h 34mMultiple Airlines
Sat 10/115:10 pmORD - SOF
1 stop12h 50mMultiple Airlines
Deal found 6/22$677
This United Airlines deal was found by Cheapflights users on 6/22. 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 9/186:15 amSOF - ORD
2 stops16h 40mUnited Airlines
Sat 10/111:15 pmORD - SOF
2 stops14h 45mUnited Airlines
Deal found 6/22$683
This Air France deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/157:00 amSOF - ORD
2 stops18h 36mAir France
Tue 9/301:35 pmORD - SOF
2 stops16h 25mAir France
Deal found 6/21$687
This Air Canada deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:15 amSOF - ORD
2 stops35h 36mAir Canada
Thu 12/117:20 amORD - SOF
2 stops21h 50mAir Canada
Deal found 6/21$690
This Lufthansa deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:15 amSOF - ORD
1 stop21h 40mLufthansa
Fri 12/123:20 pmORD - SOF
1 stop14h 30mLufthansa
Deal found 6/22$692
This British Airways deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:30 pmSOF - ORD
1 stop26h 25mBritish Airways
Sun 12/145:00 pmORD - SOF
1 stop15h 20mBritish Airways
Deal found 6/23$695
This Lufthansa deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/89:15 amVAR - ORD
1 stop13h 40mLufthansa
Sun 7/273:35 pmORD - VAR
1 stop11h 55mLufthansa
Deal found 6/23$720
This FlightHub deal was found by Cheapflights users on 6/21. 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 7/279:15 pmSOF - ORD
1 stop20h 25mTurkish Airlines
Sat 8/911:45 pmORD - SOF
1 stop31h 00mTurkish Airlines
Deal found 6/21$726
This Austrian Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/91:35 pmVAR - ORD
1 stop31h 45mAustrian Airlines
Mon 7/283:55 pmORD - VAR
2 stops36h 50mAustrian Airlines
Deal found 6/23$731
This SWISS deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/89:00 pmVAR - ORD
1 stop23h 50mSWISS
Mon 7/287:05 pmORD - VAR
1 stop17h 05mSWISS
Deal found 6/23$732

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 June 23, 2025.
Use the filters below to find and compare flights from Bulgaria to Chicago O'Hare Intl Airport that are best for you.

Fly from

Bulgaria

Fly to

O'Hare Intl

Route

Depart

Return

Price

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/15

5:20 am-7:40 pm

1 stop22h 20m

Chicago O'Hare Intl

Tue 9/30

5:10 pm-5:55 pm

2 stops16h 45m

$663

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 7/13

6:00 pm-1:10 pm

1 stop27h 10m

Chicago O'Hare Intl

Sun 7/27

3:00 pm-12:05 pm

1 stop13h 05m

$670

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 9/18

7:00 am-4:34 pm

2 stops17h 34m

Chicago O'Hare Intl

Sat 10/11

5:10 pm-2:00 pm

1 stop12h 50m

$677

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/10

6:15 am-6:41 pm

2 stops20h 26m

Chicago O'Hare Intl

Sat 12/13

6:00 pm-6:20 pm

1 stop16h 20m

$681

SofiaChicago

SOF - ORD

SOFORD

Sofia

Mon 9/15

7:00 am-5:36 pm

2 stops18h 36m

Chicago O'Hare Intl

Tue 9/30

1:35 pm-2:00 pm

2 stops16h 25m

$687

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/10

6:15 am-9:51 am

2 stops35h 36m

Chicago O'Hare Intl

Thu 12/11

7:20 am-1:10 pm

2 stops21h 50m

$690

SofiaChicago

SOF - ORD

SOFORD

Sofia

Thu 9/4

6:15 am-7:55 pm

1 stop21h 40m

Chicago O'Hare Intl

Mon 12/15

3:20 pm-1:25 pm

1 stop14h 05m

$692

SofiaChicago

SOF - ORD

SOFORD

Sofia

Wed 9/10

9:30 pm-6:15 pm

1 stop28h 45m

Chicago O'Hare Intl

Thu 12/11

5:00 pm-11:15 am

1 stop34h 15m

$694

VarnaChicago

VAR - ORD

VARORD

Varna

Tue 7/8

9:15 am-2:55 pm

1 stop13h 40m

Chicago O'Hare Intl

Sun 7/27

3:35 pm-11:30 am

1 stop11h 55m

$720

SofiaChicago

SOF - ORD

SOFORD

Sofia

Sun 7/27

9:15 pm-9:40 am

1 stop20h 25m

Chicago O'Hare Intl

Sat 8/9

11:45 pm-2:45 pm

1 stop31h 00m

$726

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/21

Showing 1-10 of 38 results
1
2
3
4

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, August is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $245). Flying from Bulgaria to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $320). 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.

What is the cheapest time of day to fly from BG to ORD?

Find hourly flight availability from Bulgaria to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 23, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Bulgaria to Chicago O'Hare Intl Airport as you normally would.

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 1.7 in.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 June 23, 2025.
Read through reviews of airlines operating flights from Bulgaria to Chicago, such as LOT, Austrian Airlines and Air France. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
LOT
7.6
Good
1,082 reviews
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Austrian Airlines
7.6
Good
805 reviews
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Air France
7.5
Good
1,470 reviews
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
SWISS
7.5
Good
1,645 reviews
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.
Qatar Airways
7.4
Good
3,595 reviews
LOT
7.6
Good
1,082 reviews

Food

7.2

Overall

7.6

Crew

8.1

Entertainment

7.0

Boarding

7.6

Comfort

7.5

Reviews

1 / 20
2.0
Mediocre

Hinesh,May 2025

LHR - WAW

Would not recommend this airline flight was delayed baggage was lost bad communication, our bag landed at the destination airport at 12 midday but did not arrive at the hotel till midnight no urgency at all this totally ruined the first 2 days of our trip worst airline I have used.

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.

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

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $586. Users have also found prices from $606 and $651 on Qatar Airways and Austrian Airlines, respectively.

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

    While some choose either Bourgas - Chicago O'Hare Intl or Varna - 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, August is the cheapest month in which you can book a flight from Bulgaria to Chicago O'Hare Intl Airport (average of $245). Flying from Bulgaria to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $320). 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 Bulgaria?

Book flights to Bulgaria if you plan to visit one of these locations
Schaumburg
Hoffman Estates
Rosemont
Beloit
Elgin
Skokie
Arlington Heights
Naperville
Orland Park
Elk Grove Village
Racine
Rockford
Tinley Park
Merrillville
Bridgeview
Glenview
Des Plaines
Lake Geneva
Gurnee
Joliet

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Bulgaria to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to O'Hare Intl flights
Frankfurt to O'Hare Intl flights
Heathrow to O'Hare Intl flights
Frederic Chopin to O'Hare Intl flights
Madrid to O'Hare Intl flights
Frederic Chopin to Midway flights
Orly to O'Hare Intl flights
Dublin to O'Hare Intl flights
Bruxelles-National to O'Hare Intl flights
Heathrow to Midway flights
Zurich to O'Hare Intl flights
Vienna to O'Hare Intl flights
Charles de Gaulle to Midway flights
Malpensa to O'Hare Intl flights
Gatwick to O'Hare Intl flights
Amsterdam to O'Hare Intl flights
London City to O'Hare Intl flights
Munich to O'Hare Intl flights
Krakow to O'Hare Intl flights
Athens to O'Hare Intl flights
Istanbul to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to O'Hare Intl flights
Beauvais-Tille to O'Hare Intl flights
Madrid to Midway flights
Barcelona-El Prat to O'Hare Intl flights
Oslo Gardermoen to O'Hare Intl flights
Bergamo to O'Hare Intl flights
Sofia to O'Hare Intl flights
Modlin to O'Hare Intl flights
Lisbon to O'Hare Intl flights
Luton to O'Hare Intl flights
Bruxelles-National to Midway flights
Stansted to O'Hare Intl flights
Berlin to O'Hare Intl flights
Barcelona-El Prat to Midway flights
Frankfurt-Hahn to O'Hare Intl flights
Edinburgh to O'Hare Intl flights
Copenhagen to O'Hare Intl flights
Otopeni Intl to O'Hare Intl flights
Leonardo da Vinci/Fiumicino to Midway flights
Vicenza to O'Hare Intl flights
Amsterdam to Midway flights

Top 8 airlines flying from Bulgaria to O'Hare Intl

Discover the top 8 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 June 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$485Average$768FlexibilityNo cancel feeOn-time75%
LOTCheapest$532Average$628FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$546Average$864FlexibilityNo cancel feeOn-time70%
Air FranceCheapest$560Average$672FlexibilityNo cancel feeOn-time77%
Austrian AirlinesCheapest$576Average$879FlexibilityNo cancel feeOn-time78%
Turkish AirlinesCheapest$601Average$779FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$603Average$702FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$614Average$781FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.