$419 Cheap Flights from Chicago (ORD) to Bourgas (BOJ)

View $419 flight on Mon, Aug 10, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Bourgas (BOJ)

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Cheap Flights from Chicago to Bourgas (ORD-BOJ)

Prices were available within the past 7 days and start at $419 for one-way flights and $736 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$736 Roundtrip, found 1 day ago
$736
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $736 found 1 day ago
Air Canada
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$740 Roundtrip, found 1 day ago
$740
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $740 found 1 day ago
Austrian Airlines
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$744 Roundtrip, found 1 day ago
$744
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $744 found 1 day ago
Lufthansa
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$747 Roundtrip, found 1 day ago
$747
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $747 found 1 day ago
Air Canada
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$747 Roundtrip, found 1 day ago
$747
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $747 found 1 day ago
Lufthansa
Mon, Aug 10 - Thu, Sep 24
ORD
Chicago
BOJ
Burgas
$750 Roundtrip, found 3 days ago
$750
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Aug 10 from Chicago to Burgas, returning Thu, Sep 24, priced at $750 found 3 days ago
Air Canada
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$750 Roundtrip, found 1 day ago
$750
Roundtrip
found 1 day ago
Select Air Canada flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $750 found 1 day ago
Austrian Airlines
Mon, Aug 24 - Wed, Sep 16
ORD
Chicago
BOJ
Burgas
$754 Roundtrip, found 1 day ago
$754
Roundtrip
found 1 day ago
Select Austrian Airlines flight, departing Mon, Aug 24 from Chicago to Burgas, returning Wed, Sep 16, priced at $754 found 1 day ago
Austrian Airlines
Mon, Aug 10 - Thu, Sep 24
ORD
Chicago
BOJ
Burgas
$757 Roundtrip, found 3 days ago
$757
Roundtrip
found 3 days ago
Select Austrian Airlines flight, departing Mon, Aug 10 from Chicago to Burgas, returning Thu, Sep 24, priced at $757 found 3 days ago
Aer Lingus
Mon, Aug 10 - Thu, Sep 24
ORD
Chicago
BOJ
Burgas
$800 Roundtrip, found 3 days ago
$800
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Mon, Aug 10 from Chicago to Burgas, returning Thu, Sep 24, priced at $800 found 3 days ago

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Frequently asked questions

How much does a flight from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) cost?
You can find cheap one-way flights from $419 and cheap return flights from $736 Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) with Expedia. Return flights often range between $2431 and $4860. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
The cheapest month to fly from ORD to BOJ is August when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
Enter ORD to BOJ and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
Austrian Airlines is one of the cheapest airlines offering connecting flights from Chicago, IL (ORD) to Bourgas (BOJ), starting from around $2,063. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from ORD to BOJ. To compare more early flights, use the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
a Friday typically has the most flights from O'Hare Intl. (ORD) to (BOJ), with approximately 22 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, Aer Lingus, and British Airways.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
The most popular departure times for flights from Chicago, IL (ORD) to Bourgas (BOJ) are in the late evening, from 9pm to midnight. About 39% of passengers prefer this time window. Many major carriers, including Lufthansa, American Airlines, and Aer Lingus, offer flights during this window. This timing works well because it allows you to enjoy a full day in Chicago before heading to your destination.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
A flight from ORD to BOJ with a layover takes around 18 hours 20 minutes, with the route covering approximately 5,351 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
Business class is available on flights from ORD to BOJ. Airlines that offer business class service on this route include:

  • United Airlines
  • Air Canada
  • Austrian Airlines
  • Lufthansa

How do I earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) flight and hotel package?
Securing a Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Bourgas (BOJ) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Bourgas
Airlines serving
Aer Lingus, Austrian Airlines, Lufthansa
Roundtrip price
$736
Distance
5350 mi

Book with confidence

Chicago to Bourgas Flights

The cheapest times to fly from Chicago to Bourgas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Bourgas are during the month of August. You can find some of the cheapest flights from Chicago to Bourgas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Bourgas

Sunday is one of the best days to book for cheap flights from Chicago to Bourgas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Bourgas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Bourgas in 2026. You can also book with separate airlines for your outbound and return journeys, from $419 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Bourgas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Bourgas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Bourgas Flights

*Flight schedules are subject to change.

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*Available to One Key members.