Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Chicago O'Hare Intl Airport to Sofia from $248

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 Sofia departing on 2/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

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.
Search flight deals

Find the cheapest flights from Chicago O'Hare Intl Airport to Sofia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Turkish Airlines Logo
8:10 pm - 8:15 pm
ORD
-
SOF
16h 05m
1 stop
Turkish Airlines Logo
9:35 am - 9:40 am
SOF
-
ORD
32h 05m
1 stop
$517Turkish Airlines
Wed, Apr 15 - Sun, May 3
Turkish Airlines Logo
11:25 am - 3:00 pm
ORD
-
SOF
19h 35m
1 stop
Turkish Airlines Logo
9:05 pm - 9:40 am
SOF
-
ORD
20h 35m
1 stop
$524Turkish Airlines
Wed, Apr 8 - Sun, Apr 12
Turkish Airlines Logo
8:20 pm - 8:45 am
ORD
-
SOF
28h 25m
1 stop
Turkish Airlines Logo
4:00 pm - 11:05 am
SOF
-
ORD
26h 05m
1 stop
$525Turkish Airlines
Thu, Feb 26 - Sun, Mar 8
Turkish Airlines Logo
8:10 pm - 8:45 am
ORD
-
SOF
28h 35m
1 stop
Turkish Airlines Logo
2:05 pm - 9:40 am
SOF
-
ORD
27h 35m
1 stop
$526Turkish Airlines
Tue, Mar 31 - Sun, Apr 12
Turkish Airlines Logo
8:20 pm - 8:45 am
ORD
-
SOF
28h 25m
1 stop
Turkish Airlines Logo
9:35 am - 10:05 am
SOF
-
ORD
32h 30m
1 stop
$529Turkish Airlines
Thu, Feb 26 - Sun, Mar 8
Turkish Airlines Logo
8:10 pm - 8:15 pm
ORD
-
SOF
16h 05m
1 stop
Turkish Airlines Logo
2:05 pm - 6:15 pm
SOF
-
ORD
36h 10m
1 stop
$530Turkish Airlines
Thu, Apr 23 - Sun, May 31
Turkish Airlines Logo
8:10 pm - 8:45 am
ORD
-
SOF
28h 35m
1 stop
Turkish Airlines Logo
9:05 pm - 9:40 am
SOF
-
ORD
20h 35m
1 stop
$531Turkish Airlines
Fri, Apr 24 - Sun, May 31
Turkish Airlines Logo
11:50 am - 8:50 pm
ORD
-
SOF
25h 00m
1 stop
Turkish Airlines Logo
9:35 am - 7:25 pm
SOF
-
ORD
16h 50m
1 stop
$538Turkish Airlines
Fri, Mar 6 - Mon, Mar 9
Turkish Airlines Logo
12:50 pm - 8:50 pm
ORD
-
SOF
25h 00m
1 stop
Turkish Airlines Logo
9:35 am - 9:40 am
SOF
-
ORD
32h 05m
1 stop
$540Turkish Airlines
Wed, Mar 18 - Wed, Apr 15
Turkish Airlines Logo
11:50 am - 8:45 am
ORD
-
SOF
12h 55m
1 stop
Turkish Airlines Logo
9:35 am - 6:25 pm
SOF
-
ORD
16h 50m
1 stop
$545Turkish Airlines
Sat, Feb 21 - Wed, Mar 4

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

Our best Turkish Airlines deals on Chicago O'Hare Intl Airport to Sofia flight tickets
Turkish Airlines
Apr 15
ORD8:10 pmChicago O'Hare Intl
16h 05m
1 stop
SOF8:15 pmSofia
May 3
SOF9:35 amSofia
32h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
$517
Turkish Airlines
Apr 8
ORD8:10 pmChicago O'Hare Intl
16h 05m
1 stop
SOF8:15 pmSofia
Apr 19
SOF2:05 pmSofia
27h 35m
1 stop
ORD9:40 amChicago O'Hare Intl
$524
Turkish Airlines
Feb 26
ORD8:20 pmChicago O'Hare Intl
28h 25m
1 stop
SOF8:45 amSofia
Mar 8
SOF4:00 pmSofia
26h 05m
1 stop
ORD11:05 amChicago O'Hare Intl
$525

Lufthansa flights from Chicago O'Hare Intl Airport to Sofia

Our best Lufthansa deals on Chicago O'Hare Intl Airport to Sofia flight tickets
Lufthansa
Mar 4
ORD9:50 pmChicago O'Hare Intl
12h 30m
1 stop
SOF6:20 pmSofia
Mar 18
SOF6:05 amSofia
15h 20m
2 stops
ORD2:25 pmChicago O'Hare Intl
$568
Lufthansa
Feb 5
ORD9:50 pmChicago O'Hare Intl
16h 55m
1 stop
SOF10:45 pmSofia
Mar 24
SOF6:05 amSofia
15h 05m
2 stops
ORD2:10 pmChicago O'Hare Intl
$575
Lufthansa
Feb 6
ORD9:50 pmChicago O'Hare Intl
16h 55m
1 stop
SOF10:45 pmSofia
Apr 1
SOF6:20 amSofia
14h 35m
1 stop
ORD12:55 pmChicago O'Hare Intl
$602

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport to Sofia 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 February 3, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sofia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/15

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

Sun 5/3

9:35 am-9:40 am

1 stop32h 05m

$517

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 4/8

11:25 am-3:00 pm

1 stop19h 35m

Sofia

Sun 4/12

9:05 pm-9:40 am

1 stop20h 35m

$524

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 2/26

8:20 pm-8:45 am

1 stop28h 25m

Sofia

Sun 3/8

4:00 pm-11:05 am

1 stop26h 05m

$525

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 3/31

8:10 pm-8:45 am

1 stop28h 35m

Sofia

Sun 4/12

2:05 pm-9:40 am

1 stop27h 35m

$526

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 2/26

8:20 pm-8:45 am

1 stop28h 25m

Sofia

Sun 3/8

9:35 am-10:05 am

1 stop32h 30m

$529

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Thu 4/23

8:10 pm-8:15 pm

1 stop16h 05m

Sofia

Sun 5/31

2:05 pm-6:15 pm

1 stop36h 10m

$530

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 4/24

8:10 pm-8:45 am

1 stop28h 35m

Sofia

Sun 5/31

9:05 pm-9:40 am

1 stop20h 35m

$531

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Fri 3/6

11:50 am-8:50 pm

1 stop25h 00m

Sofia

Mon 3/9

9:35 am-7:25 pm

1 stop16h 50m

$538

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 3/18

12:50 pm-8:50 pm

1 stop25h 00m

Sofia

Wed 4/15

9:35 am-9:40 am

1 stop32h 05m

$540

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sat 2/21

11:50 am-8:45 am

1 stop12h 55m

Sofia

Wed 3/4

9:35 am-6:25 pm

1 stop16h 50m

$545

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Sofia from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Sofia

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 Sofia?

The cheapest month to fly to Sofia from Chicago O'Hare Intl Airport is in January. Flight prices, which tend to average around $631, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Sofia from Chicago O'Hare Intl Airport during October instead. Flights to Sofia in October, while not as cheap as those in January, still average around $634.

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

You are more likely to see cheaper flights to Sofia from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Sofia for around $747 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Sofia from Chicago O'Hare Intl Airport for as low as $711 on momondo.

How have Chicago O'Hare Intl Airport to Sofia flight prices changed over time?

As of February 2026, prices for Chicago O'Hare Intl Airport to Sofia flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Sofia

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Sofia according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago O'Hare Intl Airport to Sofia (ORD to SOF) flight deals and tips

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

Fastest flight time

12h 35m

Direct flights

None
The fastest flight from Chicago O'Hare Intl Airport to Sofia takes 12h 35m
There are no direct flights from Chicago O'Hare Intl Airport to Sofia. There are no popular flight routes from Chicago O'Hare Intl Airport to Sofia.
Search flight deals

  • How far is Chicago O'Hare Intl to Sofia by plane?

    Chicago O'Hare Intl and Sofia are 5191.0 mi apart from one another. In terms of flight time, this usually takes a little over 12h 35m.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Sofia Airport?

    Prices for flights from Chicago O'Hare Intl Airport to Sofia Airport refresh daily.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Sofia Airport.

  • What documentation or ID do you need to fly to Sofia Airport?

    The travel and health documents required for your trip to Sofia Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sofia Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Chicago O'Hare Intl Airport to Sofia?

Best airlines flying from Chicago O'Hare Intl Airport to Sofia

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Sofia with momondo
Airline
Rating
Free Cancellation
Price
ITA AirwaysPriceFrom $469Free CancellationRating
6.7
1,144 reviews
Search ITA Airways flights
Turkish AirlinesPriceFrom $520Free CancellationRating
7.3
4,209 reviews
Search Turkish Airlines flights
KLMPriceFrom $533Free CancellationRating
7.7
1,448 reviews
Search KLM flights
United AirlinesPriceFrom $566Free CancellationRating
7.4
9,232 reviews
Search United Airlines flights
SWISSPriceFrom $569Free CancellationRating
7.6
1,864 reviews
Search SWISS flights
Air FrancePriceFrom $585Free CancellationRating
7.4
1,531 reviews
Search Air France flights
LufthansaPriceFrom $586Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
LOTPriceFrom $590Free CancellationRating
7.5
1,178 reviews
Search LOT flights
Austrian AirlinesPriceFrom $606Free CancellationRating
7.5
896 reviews
Search Austrian Airlines flights
British AirwaysPriceFrom $611Free CancellationRating
6.7
7,711 reviews
Search British Airways flights

Traveling to a place near Sofia?

Book flights to Sofia if you plan to visit one of these locations
Bansko
Borovets
Velingrad
Sandanski

Why use momondo?

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

It is quick and easy to find Chicago to Sofia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Sofia that suits you.

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

momondo does allow users to show only those flights to Sofia from Chicago which offer a flexible booking policy as well as other useful filters and features.

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

Once all potential Chicago to Sofia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Chicago to Sofia 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 Sofia trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 3/5
Thu 3/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bulgaria

Fly your favorite airline to Sofia

Airlines are sorted and displayed according to clicks in the past 7 days on momondo
Lufthansa
Turkish Airlines
LOT
United Airlines
Austrian Airlines
SWISS
Air Serbia
KLM
British Airways
Air France
JetBlue
ITA Airways