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

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The best prices from Chicago to Sofia are usually found in October or January, booked 55 days in advance, depart on a Tuesday or Monday and return on a Thursday

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 2021: compare Chicago to Sofia flight prices with the expected peak season, weather and rainfall in Sofia.
CHI - SOF
Price
$674 - $914
SOF
Temperature
30.2 - 68 °F
SOF
Precipitation
1.2 - 2.8 inches

Popular in

June

High demand for flights, 19% potential price rise

Cheapest in

October

Best time to find cheap flights, 9% potential price drop

Round-trip from

$674

From Chicago (CHI) to Sofia

One-way from

$439

One-way flight from Chicago (CHI) to Sofia

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Chicago to Sofia?

Find a great deal and save up to 7% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Chicago to Sofia within the next two weeks, with the cheapest ticket starting at $736.

What is the cheapest day to fly round-trip from Chicago to Sofia?

Friday flights are found to be more expensive to fly from Chicago to Sofia. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sofia.

When is the cheapest time to fly from Chicago to Sofia (CHI - SOF)?

It’s optimal to fly from Chicago to Sofia in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight at noon.

What is the cheapest month to fly from Chicago to Sofia?

October can be a great time to fly to Sofia from Chicago with a flight ticket averaging about $739. Cheapflights users have found deals in the month of October for as cheap as $620. The most expensive prices can be found in the month of June.

Cheap flights from Chicago to Sofia in October, November 2021

The best prices found for CHI to SOF flights for October, November
15 Nov - 30 Nov
$458pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Air Canada
   
2 STOPS
ORD
Chicago O'Hare Intl
15 Nov - 24 Nov
$461pp
ORD
Chicago O'Hare Intl
United Airlines
   
2 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
29 Oct - 13 Nov
$463pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
KLM
 
1 STOP
ORD
Chicago O'Hare Intl

Chicago to Sofia 2021 flight deals

Cheap flights to Sofia from Chicago found for this year
27 Dec - 1 Mar
$456pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
SOF
Sofia
SOF
Sofia
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
15 Nov - 30 Nov
$458pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Air Canada
   
2 STOPS
ORD
Chicago O'Hare Intl
15 Nov - 24 Nov
$461pp
ORD
Chicago O'Hare Intl
United Airlines
   
2 STOPS
SOF
Sofia
SOF
Sofia
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to Sofia

Late deals on round-trip flights to Sofia from Chicago, departing today and this week
4 Nov - 16 Nov
$463pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
KLM
 
1 STOP
ORD
Chicago O'Hare Intl
4 Nov - 16 Nov
$467pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
SOF
Sofia
SOF
Sofia
KLM
 
1 STOP
ORD
Chicago O'Hare Intl
4 Nov - 16 Nov
$477pp
ORD
Chicago O'Hare Intl
Multiple Airlines
   
2 STOPS
SOF
Sofia
SOF
Sofia
KLM
   
2 STOPS
ORD
Chicago O'Hare Intl

One-way flights to Sofia from Chicago

The cheapest one-way flights from Chicago to Sofia
6:40 pm - 4:25 pm
Turkish Airlines
1 Stop
14h 45m
ORD - SOF
Turkish Airlines
$439
TravelMerry
2:20 pm - 11:40 am
Delta
1 Stop
14h 20m
ORD - SOF
Delta
$469
Delta
8:15 am - 5:55 pm
Air Canada
2 Stops
25h 40m
ORD - SOF
Air Canada
$470
Air Canada

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">Sofia</span> flights.

Flight FAQs

From Chicago to Sofia

What airport do you fly into for flights to Sofia from Chicago?

Sofia (SOF) is the airport you will fly into if you book a flight from Chicago to Sofia. You should not have trouble finding flights to Sofia from Chicago; the airport handles an average of 0 inbound flights from Chicago per day. You should also have plenty of airline options to choose from since 14 airlines have flights to the Sofia airport from Chicago. It is only a 4.2 mi journey from Sofia (SOF) to Sofia’s city center.

Which airlines flying from Chicago to Sofia have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like Lufthansa, LOT, and Turkish Airlines flying from Chicago to Sofia have implemented new flexible cancellation policies.

Can I find flights from Chicago to Sofia for under $500 on Cheapflights?

Yes, there are multiple flights from Chicago to Sofia for under $500. The cheapest flight booked recently is on Lufthansa for just $456, but on average you can expect to pay $472.

Are there last-minute flights available from Chicago to Sofia for under $500?

There are currently 20+ open flights from Chicago to Sofia within the next 7 days for less than $500.

What are the cheapest airlines flying from Chicago to Sofia round-trip?

According to our current data, Lufthansa ($456), United Airlines ($461), and KLM ($472) offers the cheapest pricing from Chicago to Sofia. Lufthansa is currently priced 38% below the average price you’ll pay for this route.

What are the cheapest airlines to fly from Chicago to Sofia one-way?

The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $439. However, be on the lookout for offers from Lufthansa and Delta, as they are both options that can get you from Chicago to Sofia for a low price.

What are the cheapest flights from Chicago to Sofia?

The cheapest flight price from Chicago to Sofia is $344. On average you can expect to pay $1,294. The most popular route, (Chicago O'Hare Intl - Sofia), can usually be booked for $458.

What are the most popular airlines that fly from Chicago to Sofia?

Major Airline, American Airlines and Air Canada are the most popular airlines when flying from Chicago to Sofia.

COVID Restrictions

View COVID Travel Restrictions for Sofia, Bulgaria

Do I need a COVID test to fly to Sofia from Chicago?

Information is based on travel restrictions from Chicago to Sofia

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter Sofia.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Sofia.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering Sofia.

Do I need a test to fly back to Chicago from Sofia?

Returning to Chicago from Sofia

COVID-19 testing requirements
Visitors from Sofia must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Chicago.

Quarantine requirements
Visitors from Sofia are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for Sofia, Bulgaria

Destination information for Sofia

Things to know before you go - useful duration and weather info for your trip from Chicago to Sofia.
Today's exchange rate
$1 = 1.68 Лв
Average temperature for October in Sofia
64.4 °F
Avg rainfall for October in Sofia
2.2 ″

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing Sofia

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.
Airline Cheapest Average Flexibility On-time COVID-19 safety
United Airlines
$561 $967 No cancel fee 69%
Austrian Airlines
$566 $888 No cancel fee 78%
Turkish Airlines
$570 $862 No cancel fee 77%
ITA - Airways
$571 $720 No cancel fee 81%
Qatar Airways
$574 $792 No cancel fee 68%
LOT
$586 $857 No cancel fee 81%
Lufthansa
$589 $832 No cancel fee 76%
KLM
$589 $725 No cancel fee 75%
British Airways
$601 $711 No cancel fee 70%
Air France
$611 $853 No cancel fee 77%
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