Cheap flights from Chicago to Bulgaria from $358
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Bulgaria departing on 11/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Find the cheapest flights from Chicago to Bulgaria
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Turkish Airlines flights from Chicago to Bulgaria
Our best Turkish Airlines deals on Chicago to Bulgaria flight tickets
Air Canada flights from Chicago to Bulgaria
Our best Air Canada deals on Chicago to Bulgaria flight tickets
momondo Fare Finder
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
ChicagoVarna
ORD Chicago O'Hare Intl - VAR Varna
ORDVAR
Chicago O'Hare Intl
Mon 10/26
9:15 pm-8:50 am
1 stop28h 35m
Varna
Tue 11/10
9:40 am-10:00 am
1 stop32h 20m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 1/11
7:05 am-1:15 pm
2 stops22h 10m
Sofia
Mon 1/25
7:05 pm-6:25 pm
1 stop31h 20m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Thu 3/11
12:45 pm-3:10 pm
1 stop18h 25m
Sofia
Thu 3/25
4:00 pm-11:00 am
1 stop26h 00m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Mon 11/9
9:50 pm-1:50 pm
1 stop32h 00m
Sofia
Mon 11/23
6:40 pm-7:55 pm
1 stop33h 15m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 3/2
9:50 pm-6:20 pm
1 stop12h 30m
Sofia
Wed 3/10
6:25 am-2:52 pm
2 stops16h 27m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sat 4/10
9:50 pm-2:00 am
1 stop20h 10m
Sofia
Sat 4/24
6:45 pm-3:10 pm
2 stops28h 25m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Tue 2/9
11:25 am-1:15 pm
2 stops17h 50m
Sofia
Tue 2/23
2:10 pm-11:15 pm
2 stops17h 05m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Fri 2/12
9:50 pm-10:55 pm
1 stop17h 05m
Sofia
Fri 2/26
6:25 am-1:10 pm
1 stop14h 45m
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
Sun 1/24
6:25 am-1:10 pm
1 stop14h 45m
ChicagoSofia
ORD Chicago O'Hare Intl - SOF Sofia
ORDSOF
Chicago O'Hare Intl
Sat 1/9
9:22 pm-10:55 pm
2 stops41h 33m
Sofia
Sat 1/23
6:25 am-3:20 pm
1 stop16h 55m
See travel insights to Bulgaria from
How to get the cheapest flight ticket from Chicago to Bulgaria
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Bulgaria?
If you aren’t able to travel to Bulgaria during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $616.
How far in advance should I book a flight from Chicago to Bulgaria?
You are more likely to see cheaper flights to Bulgaria from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $810 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Chicago for as low as $749 on momondo.
What is the cheapest airline that flies from Chicago to Bulgaria?
Turkish Airlines, Austrian Airlines, and Lufthansa are the most popular carriers operating from Chicago to Bulgaria
What airlines fly to Bulgaria?
Turkish Airlines, Lufthansa and LOT are the top three most popular airlines that fly to Bulgaria from Chicago according to our data. Turkish Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Bulgaria. Keep in mind that there are 12 different airlines that fly to Bulgaria on a routine basis, so you have a few additional options to choose from.
Cheap Chicago to Bulgaria flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Bulgaria
Frequently asked questions about flying from Chicago to Bulgaria
When did momondo last update prices for flights from Chicago to Bulgaria?
Prices for flights from Chicago to Bulgaria were last updated today.
How many operators does momondo search for flights from Chicago to Bulgaria?
The number of operators available for flights from Chicago to Bulgaria is 12 as of October 2026.
How old do you have to be to fly from Chicago to Bulgaria?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Bulgaria.
What documentation or ID do you need to fly to Bulgaria?
The necessary travel and health documents for your Bulgaria trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
Best airlines flying from Chicago to Bulgaria
Compare and see reviews for airlines that fly from Chicago to Bulgaria with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $451 | Free Cancellation | Rating 7.1 3,044 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.4 4,453 reviews | |||
| PriceFrom $565 | Free Cancellation | Rating 7.5 2,098 reviews | |||
| PriceFrom $573 | Free Cancellation | Rating 6.7 8,259 reviews | |||
| PriceFrom $585 | Free Cancellation | Rating 7.5 1,651 reviews | |||
| PriceFrom $586 | Free Cancellation | Rating 7.6 1,192 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 7.4 10,346 reviews | |||
| PriceFrom $610 | Free Cancellation | Rating 6.8 8,273 reviews | |||
| PriceFrom $613 | Free Cancellation | Rating 7.8 1,584 reviews | |||
| PriceFrom $726 | Free Cancellation | Rating 6.1 240 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Bulgaria?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Chicago to Bulgaria for you.
Can I find flights from Chicago to Bulgaria with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Chicago to Bulgaria flights to just show those with flexible booking policies.
How can momondo help me find flights from Chicago to Bulgaria?
momondo provides multiple filters to help you find the best flight to Bulgaria from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Chicago to Bulgaria right now. Can momondo alert me if prices change?
Price alerts on flights to Bulgaria from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.