Cheap flights from Illinois (IL) to Sofia (SOF)

Know your dates, get live prices in seconds:

From
To
Depart
–
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
Add another flight clear all

We work with more than 300 partners to bring you better travel deals

Home Europe Bulgaria Sofia Cheap flights from Illinois to Sofia

How to find the cheapest flight from
Illinois to Sofia (SOF)

All the information you need to plan the best null to SOF flight in 2022: compare Illinois to Sofia flight prices with the expected peak season, weather and rainfall in Sofia.
How far in advance should I book a flight from Illinois to Sofia?

To save on the cost of your flight from Illinois to Sofia, book at least 51 days before your planned departure. Booking around this time can save you about 7% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $736 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $744.

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

October is one of the best times of the year to fly to Sofia from Illinois. Prices for October average $739 per person but you can even find prices for as low as $620. The most expensive prices can be found in the month of June. Opting for a October flight can save you 23% on your journey compared to booking in October

When is the cheapest time to fly from Illinois to Sofia (IL - SOF)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sofia as you normally would.

Cheap flights from Illinois to Sofia in January, February 2022

The best prices found for Illinois to SOF flights for January, February
25 Jan - 15 Feb
$451pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
SOF
Sofia
SOF
Sofia
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
2 Feb - 23 Feb
$453pp
ORD
Chicago O'Hare Intl
Austrian Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
8 Feb - 15 Feb
$457pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

Illinois to Sofia 2022 flight deals

Cheap flights to Sofia from Illinois found for this year
25 Jan - 15 Feb
$451pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
SOF
Sofia
SOF
Sofia
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
21 Mar - 3 Apr
$452pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
2 Feb - 23 Feb
$453pp
ORD
Chicago O'Hare Intl
Austrian Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

Last minute flights from Illinois to Sofia

Late deals on round-trip flights to Sofia from Illinois, departing today and this week
25 Jan - 15 Feb
$451pp
ORD
Chicago O'Hare Intl
Lufthansa
 
1 STOP
SOF
Sofia
SOF
Sofia
Lufthansa
 
1 STOP
ORD
Chicago O'Hare Intl
25 Jan - 6 Mar
$458pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Austrian Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
25 Jan - 15 Feb
$460pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SOF
Sofia
SOF
Sofia
Air Canada
   
2 STOPS
ORD
Chicago O'Hare Intl

One-way flights to Sofia from Illinois

The cheapest one-way flights from Illinois to Sofia
3:20 pm - 6:45 pm
Multiple Airlines
1 Stop
19h 25m
ORD - SOF
Multiple Airlines
$591
5:40 pm - 10:45 am
Turkish Airlines
1 Stop
33h 05m
ORD - SOF
Turkish Airlines
$776
SmartFares
9:25 pm - 8:35 am
Qatar Airways
1 Stop
27h 10m
ORD - SOF
Qatar Airways
$882
JustFly

Related info for your journey

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

Flight FAQs

From Illinois to Sofia

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

Most people fly into Sofia (SOF) if they book a flight to Sofia from Illinois. Sofia is conveniently located just 4.2 mi from Sofia’s city center.

Which airlines flying from Illinois 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 Illinois to Sofia have implemented new flexible cancellation policies.

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

Yes, there are multiple flights from Illinois to Sofia for under $500. The cheapest flight booked recently is on Lufthansa for just $451, but on average you can expect to pay $465.

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

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

What are the cheapest flights from Illinois to Sofia?

The cheapest flight price from Illinois to Sofia is $326. On average you can expect to pay $1,482. The most popular route, (Chicago O'Hare Intl - Sofia), can usually be booked for $451.

What are the most popular routes from Illinois to Sofia?

While some choose either Chicago Midway - Sofia or Lambert-St Louis - Sofia, Chicago O'Hare Intl - Sofia is the most popular route from Illinois to Sofia.

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

Before booking your flight from Illinois to Sofia check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

Related searches

Flights to Sofia (SOF) from Illinois
Flights to Illinois Flights to Sofia

Rent a Car

Car Rentals in Sofia

COVID Restrictions

View COVID Travel Restrictions for Sofia, Bulgaria

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

Information is based on travel restrictions from Illinois to Sofia

Most visitors from Illinois will not be allowed to enter Sofia.

COVID-19 testing requirements
Visitors from Illinois must present a negative RT-PCR (NAAT) test taken 72 hours for rt-pcr (naat) and 48 hours for antigen (quick-test) hours before departing to Sofia.

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

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

Returning to Illinois from Sofia

COVID-19 testing requirements
Visitors from Sofia must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 24 hours before departing to Illinois.

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

Hide COVID Travel Restrictions for Sofia, Bulgaria

Departure points for flights from Illinois to Sofia

Select to see more specific information for flights to Sofia from all departure points in Illinois.
Show more

Destination information for Sofia

Things to know before you go - useful duration and weather info for your trip from Illinois to Sofia.
Today's exchange rate
$1 = 1.72 Лв
Average temperature for January in Sofia
39.2 °F
Avg rainfall for January in Sofia
1.3 ″

Airports servicing

Belleville (BLV)
Bloomington (BMI)
Champaign (CMI)
Decatur (DEC)
Moline (MLI)
Marion (MWA)

Airports servicing Sofia

Sofia (SOF)

Top 10 airlines flying from Illinois to Sofia

The chart below displays the airlines Cheapflights users traveling from Illinois 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%

Popular flight searches

Check out other popular destinations found by fellow travelers in 2022.
Home Europe Bulgaria Sofia Cheap flights from Illinois to Sofia