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Cheap flights from Chicago O'Hare Intl Airport to Bulgaria from $354

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 O'Hare Intl Airport to Bulgaria departing on 10/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Chicago O'Hare Intl Airport to Bulgaria

Cheap round-trip flights

Turkish Airlines Logo
11:25 am - 9:20 pmORD-VAR
25h 55m1 stop
Turkish Airlines Logo
10:00 am - 10:05 amVAR-ORD
32h 05m1 stop
$529Turkish Airlines
Find Deal
Fri, Oct 24 - Fri, Nov 14
Turkish Airlines Logo
11:45 pm - 8:45 amORD-VAR
25h 00m1 stop
Turkish Airlines Logo
10:00 am - 10:05 amVAR-ORD
32h 05m1 stop
$530Turkish Airlines
Find Deal
Mon, Oct 20 - Tue, Nov 4
LOT Logo
9:55 pm - 5:50 pmORD-SOF
11h 55m1 stop
LOT Logo
6:35 pm - 8:00 pmSOF-ORD
33h 25m1 stop
$557LOT
Find Deal
Mon, Nov 3 - Mon, Nov 24
Turkish Airlines Logo
8:20 pm - 8:50 pmORD-SOF
16h 30m1 stop
Turkish Airlines Logo
9:40 pm - 7:25 pmSOF-ORD
28h 45m1 stop
$559Turkish Airlines
Find Deal
Fri, Mar 6 - Mon, Mar 9
Lufthansa Logo
4:20 pm - 1:45 pmORD-SOF
13h 25m1 stop
Lufthansa Logo
2:35 pm - 8:05 pmSOF-ORD
13h 30m1 stop
$563Lufthansa
Find Deal
Tue, Nov 25 - Fri, Dec 5
LOT Logo
9:40 pm - 2:00 amORD-SOF
20h 20m1 stop
LOT Logo
2:35 pm - 9:00 pmSOF-ORD
13h 25m1 stop
$566LOT
Find Deal
Thu, Oct 23 - Thu, Oct 30
Lufthansa Logo
10:50 pm - 6:20 pmORD-SOF
12h 30m1 stop
Lufthansa Logo
6:10 am - 1:10 pmSOF-ORD
15h 00m1 stop
$572Lufthansa
Find Deal
Sun, Oct 26 - Sun, Nov 9
United Airlines Logo
12:50 pm - 1:35 pmORD-SOF
16h 45m2 stops
United Airlines Logo
6:00 am - 2:55 pmSOF-ORD
16h 55m2 stops
$592United Airlines
Find Deal
Sun, Nov 9 - Thu, Dec 4
United Airlines Logo
9:50 pm - 6:20 pmORD-SOF
12h 30m1 stop
United Airlines Logo
6:00 am - 1:10 pmSOF-ORD
15h 10m1 stop
$601United Airlines
Find Deal
Sun, Nov 2 - Thu, Nov 20
Air Serbia Logo
4:30 pm - 3:30 amORD-VAR
27h 00m1 stop
Air Serbia Logo
4:30 am - 9:00 pmVAR-ORD
24h 30m1 stop
$1,243Air Serbia
Find Deal
Wed, Oct 8 - Sat, Oct 11

Lufthansa flights from Chicago O'Hare Intl Airport to Bulgaria

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Bulgaria flight tickets
Lufthansa
Nov 25
ORD4:20 pmChicago O'Hare Intl
13h 25m
1 stop
SOF1:45 pmSofia
Dec 5
SOF2:35 pmSofia
13h 30m
1 stop
ORD8:05 pmChicago O'Hare Intl
$563
Find similar
Lufthansa
Oct 26
ORD10:50 pmChicago O'Hare Intl
12h 30m
1 stop
SOF6:20 pmSofia
Nov 9
SOF6:10 amSofia
15h 00m
1 stop
ORD1:10 pmChicago O'Hare Intl
$572
Find similar
Lufthansa
Oct 15
ORD10:30 pmChicago O'Hare Intl
16h 20m
1 stop
SOF10:50 pmSofia
Nov 7
SOF2:35 pmSofia
13h 30m
1 stop
ORD8:05 pmChicago O'Hare Intl
$587
Find similar

Turkish Airlines flights from Chicago O'Hare Intl Airport to Bulgaria

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Bulgaria flight tickets
Turkish Airlines
Oct 24
ORD11:25 amChicago O'Hare Intl
25h 55m
1 stop
VAR9:20 pmVarna
Nov 14
VAR10:00 amVarna
32h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
$529
Find similar
Turkish Airlines
Oct 20
ORD11:45 pmChicago O'Hare Intl
25h 00m
1 stop
VAR8:45 amVarna
Nov 4
VAR10:00 amVarna
32h 05m
1 stop
ORD10:05 amChicago O'Hare Intl
$530
Find similar
Turkish Airlines
Mar 6
ORD8:20 pmChicago O'Hare Intl
16h 30m
1 stop
SOF8:50 pmSofia
Mar 9
SOF9:40 pmSofia
28h 45m
1 stop
ORD7:25 pmChicago O'Hare Intl
$559
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Bulgaria 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, momondo users made 832,500 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Bulgaria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Fri 10/24

11:25 am-9:20 pm

1 stop25h 55m

Varna

Fri 11/14

10:00 am-10:05 am

1 stop32h 05m

$529

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Mon 10/20

11:45 pm-8:45 am

1 stop25h 00m

Varna

Tue 11/4

10:00 am-10:05 am

1 stop32h 05m

$530

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 11/3

9:55 pm-5:50 pm

1 stop11h 55m

Sofia

Mon 11/24

6:35 pm-8:00 pm

1 stop33h 25m

$557

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 3/6

8:20 pm-8:50 pm

1 stop16h 30m

Sofia

Mon 3/9

9:40 pm-7:25 pm

1 stop28h 45m

$559

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 11/25

4:20 pm-1:45 pm

1 stop13h 25m

Sofia

Fri 12/5

2:35 pm-8:05 pm

1 stop13h 30m

$563

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 10/23

9:40 pm-2:00 am

1 stop20h 20m

Sofia

Thu 10/30

2:35 pm-9:00 pm

1 stop13h 25m

$566

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 10/26

10:50 pm-6:20 pm

1 stop12h 30m

Sofia

Sun 11/9

6:10 am-1:10 pm

1 stop15h 00m

$572

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 11/9

12:50 pm-1:35 pm

2 stops16h 45m

Sofia

Thu 12/4

6:00 am-2:55 pm

2 stops16h 55m

$592

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 11/2

9:50 pm-6:20 pm

1 stop12h 30m

Sofia

Thu 11/20

6:00 am-1:10 pm

1 stop15h 10m

$601

ChicagoVarna

ORD - VAR

ORDVAR

Chicago O'Hare Intl

Wed 10/8

4:30 pm-3:30 am

1 stop27h 00m

Varna

Sat 10/11

4:30 am-9:00 pm

1 stop24h 30m

$1,243

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Bulgaria from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $624.

What is the cheapest day to depart on your flight to Bulgaria?

The cheapest day to depart from Chicago O'Hare Intl Airport to Bulgaria is on a Thursday when prices can be found for as low as $885. On the other hand, Monday is the most expensive day to depart from Chicago O'Hare Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,047.

What is the cheapest time of day to depart on your flight to Bulgaria?

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Bulgaria when you can find flight prices for as low as $751. Flying to Bulgaria in the morning is an ideal time because this is during off-peak travel hours. Flights to Bulgaria are more costly at noon, with an average ticket price of $1,107. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Bulgaria?

You are more likely to see cheaper flights to Bulgaria from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Bulgaria for around $764 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bulgaria from Chicago O'Hare Intl Airport for as low as $731 on momondo.

Cheap Chicago O'Hare Intl Airport to Bulgaria flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Bulgaria

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Bulgaria. There are no popular flight routes from Chicago O'Hare Intl Airport to Bulgaria.
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  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Bulgaria?

    Prices for flights from Chicago O'Hare Intl Airport to Bulgaria were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Bulgaria?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Bulgaria?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Bulgaria

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Bulgaria with momondo
Airline
Rating
Free Cancellation
Price
Air FrancePriceFrom $498Free CancellationRating
7.4
1,465 reviews
Search Air France flights
KLMPriceFrom $499Free CancellationRating
7.8
1,391 reviews
Search KLM flights
Turkish AirlinesPriceFrom $508Free CancellationRating
7.3
3,976 reviews
Search Turkish Airlines flights
LOTPriceFrom $568Free CancellationRating
7.6
1,118 reviews
Search LOT flights
LufthansaPriceFrom $590Free CancellationRating
6.8
7,424 reviews
Search Lufthansa flights
SWISSPriceFrom $596Free CancellationRating
7.5
1,744 reviews
Search SWISS flights
United AirlinesPriceFrom $601Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights
British AirwaysPriceFrom $613Free CancellationRating
6.7
7,399 reviews
Search British Airways flights
Austrian AirlinesPriceFrom $616Free CancellationRating
7.6
854 reviews
Search Austrian Airlines flights
Air SerbiaPriceFrom $652Free CancellationRating
6.3
199 reviews
Search Air Serbia flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Bulgaria?

Finding the right flight to Bulgaria from Chicago is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Bulgaria quick and easy, saving you time and money.

Can I find flights from Chicago to Bulgaria with flexible booking policies on momondo?

All flight searches from Chicago to Bulgaria on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Chicago to Bulgaria?

momondo helps you find the best flight between Chicago and Bulgaria by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Chicago to Bulgaria right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Bulgaria flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Bulgaria trip

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