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Cheap flights from Chicago O'Hare Intl Airport to Bulgaria from $250

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 8/11. 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
11:45 pm - 2:45 pmORD-SOF
31h 00m1 stop
Turkish Airlines Logo
10:05 am - 6:25 pmSOF-ORD
16h 20m1 stop
$474Turkish Airlines
Find Deal
Mon, Aug 11 - Thu, Nov 20
Turkish Airlines Logo
11:45 pm - 8:35 amORD-SOF
24h 50m1 stop
Turkish Airlines Logo
3:35 pm - 10:00 pmSOF-ORD
14h 25m1 stop
$483Turkish Airlines
Find Deal
Mon, Aug 18 - Mon, Sep 8
Austrian Airlines Logo
4:20 pm - 6:10 pmORD-SOF
17h 50m1 stop
Austrian Airlines Logo
6:55 pm - 1:20 pmSOF-ORD
26h 25m1 stop
$489Austrian Airlines
Find Deal
Mon, Sep 15 - Mon, Oct 6
Logo
7:05 pm - 12:30 pmORD-SOF
33h 25m1 stop
Logo
12:45 pm - 9:51 amSOF-ORD
29h 06m2 stops
$490
Find Deal
Sun, Sep 21 - Fri, Oct 17
Austrian Airlines Logo
12:50 pm - 11:40 amORD-SOF
14h 50m2 stops
Austrian Airlines Logo
6:55 pm - 1:20 pmSOF-ORD
26h 25m1 stop
$495Austrian Airlines
Find Deal
Mon, Sep 22 - Mon, Oct 6
Lufthansa Logo
3:35 pm - 12:00 pmORD-SOF
12h 25m1 stop
Lufthansa Logo
6:15 am - 12:55 pmSOF-ORD
14h 40m1 stop
$502Lufthansa
Find Deal
Sun, Sep 21 - Fri, Oct 17
SWISS Logo
7:05 pm - 10:05 amORD-SOF
31h 00m1 stop
SWISS Logo
3:30 pm - 3:55 pmSOF-ORD
32h 25m1 stop
$516SWISS
Find Deal
Mon, Sep 15 - Mon, Oct 6
Lufthansa Logo
3:35 pm - 12:00 pmORD-SOF
12h 25m1 stop
Lufthansa Logo
6:00 am - 12:30 pmSOF-ORD
14h 30m1 stop
$517Lufthansa
Find Deal
Mon, Sep 29 - Tue, Oct 7
United Airlines Logo
4:20 pm - 11:40 amORD-SOF
11h 20m1 stop
United Airlines Logo
6:00 am - 5:33 pmSOF-ORD
19h 33m2 stops
$534United Airlines
Find Deal
Tue, Sep 30 - Tue, Oct 14
United Airlines Logo
6:30 am - 11:00 pmORD-SOF
32h 30m2 stops
United Airlines Logo
12:00 pm - 2:55 pmSOF-ORD
34h 55m2 stops
$553United Airlines
Find Deal
Mon, Sep 22 - Mon, Sep 29

SWISS flights from Chicago O'Hare Intl Airport to Bulgaria

Our best SWISS deals on Chicago O'Hare Intl Airport to Bulgaria flight tickets
SWISS
Sep 15
ORD7:05 pmChicago O'Hare Intl
31h 00m
1 stop
SOF10:05 amSofia
Oct 6
SOF3:30 pmSofia
32h 25m
1 stop
ORD3:55 pmChicago O'Hare Intl
$516
Find similar
SWISS
Aug 6
ORD2:20 pmChicago O'Hare Intl
11h 45m
1 stop
SOF10:05 amSofia
Aug 26
SOF1:15 pmSofia
30h 55m
1 stop
ORD12:10 pmChicago O'Hare Intl
$594
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
Aug 11
ORD11:45 pmChicago O'Hare Intl
31h 00m
1 stop
SOF2:45 pmSofia
Nov 20
SOF10:05 amSofia
16h 20m
1 stop
ORD6:25 pmChicago O'Hare Intl
$474
Find similar
Turkish Airlines
Aug 18
ORD11:45 pmChicago O'Hare Intl
24h 50m
1 stop
SOF8:35 amSofia
Sep 8
SOF3:35 pmSofia
14h 25m
1 stop
ORD10:00 pmChicago O'Hare Intl
$483
Find similar
Turkish Airlines
Sep 29
ORD11:25 amChicago O'Hare Intl
25h 00m
1 stop
SOF8:25 pmSofia
Oct 8
SOF9:25 amSofia
32h 15m
1 stop
ORD9:40 amChicago O'Hare Intl
$492
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 July 31, 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

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 8/11

11:45 pm-2:45 pm

1 stop31h 00m

Sofia

Thu 11/20

10:05 am-6:25 pm

1 stop16h 20m

$474

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 8/18

11:45 pm-8:35 am

1 stop24h 50m

Sofia

Mon 9/8

3:35 pm-10:00 pm

1 stop14h 25m

$483

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 9/15

4:20 pm-6:10 pm

1 stop17h 50m

Sofia

Mon 10/6

6:55 pm-1:20 pm

1 stop26h 25m

$489

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 9/21

7:05 pm-12:30 pm

1 stop33h 25m

Sofia

Fri 10/17

12:45 pm-9:51 am

2 stops29h 06m

$490

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 9/22

12:50 pm-11:40 am

2 stops14h 50m

Sofia

Mon 10/6

6:55 pm-1:20 pm

1 stop26h 25m

$495

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 9/21

3:35 pm-12:00 pm

1 stop12h 25m

Sofia

Fri 10/17

6:15 am-12:55 pm

1 stop14h 40m

$502

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 9/15

7:05 pm-10:05 am

1 stop31h 00m

Sofia

Mon 10/6

3:30 pm-3:55 pm

1 stop32h 25m

$516

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 9/29

3:35 pm-12:00 pm

1 stop12h 25m

Sofia

Tue 10/7

6:00 am-12:30 pm

1 stop14h 30m

$517

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 9/30

4:20 pm-11:40 am

1 stop11h 20m

Sofia

Tue 10/14

6:00 am-5:33 pm

2 stops19h 33m

$534

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 9/22

6:30 am-11:00 pm

2 stops32h 30m

Sofia

Mon 9/29

12:00 pm-2:55 pm

2 stops34h 55m

$553

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 $771 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 $730 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

Best Price Found

$250

Fastest flight time

11h 20m

Direct flights

None

Airports in Bulgaria

3 airports
The best one-way flight to Bulgaria from Chicago O'Hare Intl Airport in the past 72 hours is $250. The best round-trip flight deal from Chicago O'Hare Intl Airport to Bulgaria found on momondo in the last 72 hours is $474.
The fastest flight from Chicago O'Hare Intl Airport to Bulgaria takes 11h 20m
There are no direct flights from Chicago O'Hare Intl Airport to Bulgaria. Popular non-direct routes for this connection are Chicago O'Hare Intl Airport - Sofia Airport and Chicago O'Hare Intl Airport - Varna Airport.
There are 3 airports near Bulgaria: Varna (VAR), Sofia (SOF), Bourgas (BOJ)
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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
Turkish AirlinesPriceFrom $494Free CancellationRating
7.3
3,933 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $498Free CancellationRating
7.5
1,465 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,383 reviews
Search KLM flights
LOTPriceFrom $571Free CancellationRating
7.6
1,105 reviews
Search LOT flights
LufthansaPriceFrom $588Free CancellationRating
6.8
7,275 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $588Free CancellationRating
7.6
823 reviews
Search Austrian Airlines flights
SWISSPriceFrom $596Free CancellationRating
7.5
1,686 reviews
Search SWISS flights
United AirlinesPriceFrom $601Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
British AirwaysPriceFrom $613Free CancellationRating
6.6
7,222 reviews
Search British Airways flights
Air SerbiaPriceFrom $652Free CancellationRating
6.3
196 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.

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Find better results for your trip to Bulgaria

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Popular flights according to clicks in the last 7 days on momondo
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