Cheap flights from Chicago (CHI) to Sofia (SOF) from $477

This is the cheapest one-way flight price, found on 6/7. Prices may vary by date and flight preferences.
CHI — SOF
Jun 12 — Jun 191

The best prices from Chicago to Sofia are usually found in February or January, booked 60 days in advance, depart on a Thursday or Monday and return on a Sunday

How to find the cheapest flight from Chicago (CHI) to Sofia (SOF)

All the information you need to plan the best CHI to SOF flight in 2023: compare Chicago to Sofia flight prices with the expected peak season, weather and rainfall in Sofia.

Popular in

June

Cheapest in

February

Round-trip from

$541

One-way from

$529
High demand for flights, 29% potential price rise
Best time to find cheap flights, 30% potential price drop
From Chicago (CHI) to Sofia
One-way flight from Chicago (CHI) to Sofia

CHI - SOF

Price

$541 - $1,263

SOF

Temperature

30.2 - 68 °F

SOF

Rainfall

1.2 - 2.8 inches

Cheap flights from Chicago to Sofia in June, July 2023

The best prices found for CHI to SOF flights for June, July
Check out some of the best flight deals from Chicago to Sofia in 2023. Check back regularly for other flight deals.

Chicago to Sofia 2023 flight deals

Cheap flights to Sofia from Chicago found for this year
Check out some of the best flight deals from Chicago to Sofia in 2023. Check back regularly for other flight deals.

Cheap United Airlines flights from Chicago to Sofia

Check out some of the cheapest United Airlines flights we've come across from Chicago to Sofia. Make sure to double check the flight details before booking.

Cheap SWISS flights from Chicago to Sofia

Some of the best deals we've found on SWISS flights traveling from Chicago to Sofia. Ensure the flight price, dates, time, and airline match your criteria before you book.

Last minute flights from Chicago to Sofia

Late deals on return flights to Sofia from Chicago, departing today and this week
Check out these flights departing soon from Chicago to Sofia. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Sofia from Chicago

The cheapest one-way flights from Chicago to Sofia
Some of the best available deals we've found on one-way flights from Chicago to Sofia. Those seeking round-trip flights from Chicago to Sofia should utilize the search form at the the top of the page.

Find flights from Chicago to Sofia within your budget

Use the slider to find flights from Chicago to Sofia that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$575 - $614

Route

Depart

Return

Price

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 11/6

1 stop12h 45m

Sofia

Mon 11/20

1 stop20h 45m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 11/6

2 stops13h 35m

Sofia

Mon 11/20

1 stop20h 45m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Sun 12/3

1 stop11h 40m

Sofia

Sun 12/17

1 stop16h 15m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 10/31

1 stop17h 20m

Sofia

Tue 11/14

1 stop20h 45m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 11/7

2 stops20h 10m

Sofia

Tue 11/21

1 stop13h 10m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Mon 11/6

2 stops13h 35m

Sofia

Mon 11/20

2 stops22h 48m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 10/4

1 stop15h 15m

Sofia

Mon 10/23

1 stop16h 25m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Tue 10/31

1 stop12h 45m

Sofia

Tue 11/14

2 stops26h 15m

Chicago O'Hare IntlSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

Wed 10/4

1 stop11h 30m

Sofia

Wed 10/18

1 stop29h 05m

Flights are sorted by cheapest first

Deals found on 6/5

Reviews of airlines servicing Sofia

Peruse reviews from past customers who have flown with United Airlines, SWISS and Austrian Airlines from Chicago to Sofia to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

SWISS
7.6
Good
354 reviews
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

United Airlines
7.6
Good
1,563 reviews
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

Austrian Airlines
7.4
Good
153 reviews
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

Turkish Airlines
7.3
Good
1,438 reviews
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

Lufthansa
6.8
Okay
1,195 reviews
SWISS
7.6
Good
354 reviews

Comfort

7.5

Crew

8.3

Entertainment

7.0

Boarding

7.9

Food

7.3

Overall

7.6

Reviews

1 / 10

Despite upgrading to Business Class they lost our bag (3 weeks of clothing etc). The process to find out was horrible. No one could answers, run around after run around. Just awful

Related info for your journey

Useful info, stats and facts about Chicago to Sofia flights.

Other flights from Chicago

Top 10 airlines flying from Chicago to Sofia

The chart below displays the airlines Cheapflights users traveling from Chicago to Sofia choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
LOTCheapest$427Average$1,083FlexibilityNo cancel feeOn-time81%COVID-19 safety
Search LOT flights
Austrian AirlinesCheapest$439Average$728FlexibilityNo cancel feeOn-time78%COVID-19 safety
Search Austrian Airlines flights
KLMCheapest$442Average$536FlexibilityNo cancel feeOn-time75%COVID-19 safety
Search KLM flights
Air FranceCheapest$452Average$610FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Air France flights
American AirlinesCheapest$454Average$654FlexibilityNo cancel feeOn-time71%COVID-19 safety
Search American Airlines flights
United AirlinesCheapest$471Average$1,040FlexibilityNo cancel feeOn-time69%COVID-19 safety
Search United Airlines flights
LufthansaCheapest$480Average$859FlexibilityNo cancel feeOn-time76%COVID-19 safety
Search Lufthansa flights
British AirwaysCheapest$507Average$1,290FlexibilityNo cancel feeOn-time70%COVID-19 safety
Search British Airways flights
SWISSCheapest$528Average$1,153FlexibilityNo cancel feeOn-time79%COVID-19 safety
Search SWISS flights
Turkish AirlinesCheapest$541Average$1,097FlexibilityNo cancel feeOn-time77%COVID-19 safety
Search Turkish Airlines flights
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