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Cheap flights from Chicago O'Hare Intl Airport to Sofia from $268

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 10/15. 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 Sofia

Cheap round-trip flights

 Logo
10:40 am - 10:05 amORD-SOF
15h 25m2 stops
 Logo
6:00 am - 9:51 amSOF-ORD
35h 51m2 stops
Wed, Sep 17 - Wed, Oct 1
British Airways Logo
9:15 pm - 7:10 pmORD-SOF
13h 55m1 stop
British Airways Logo
9:30 pm - 6:15 pmSOF-ORD
28h 45m1 stop
$510British Airways
Find Deal
Sun, Aug 31 - Wed, Sep 10
Lufthansa Logo
4:00 pm - 1:15 pmORD-SOF
13h 15m1 stop
Lufthansa Logo
12:45 pm - 6:15 pmSOF-ORD
13h 30m1 stop
$519Lufthansa
Find Deal
Wed, Oct 1 - Wed, Oct 22
Turkish Airlines Logo
11:25 am - 2:45 pmORD-SOF
19h 20m1 stop
Turkish Airlines Logo
3:35 pm - 9:40 amSOF-ORD
26h 05m1 stop
$522Turkish Airlines
Find Deal
Wed, Aug 20 - Wed, Sep 3
United Airlines Logo
6:00 pm - 11:00 pmORD-SOF
21h 00m1 stop
United Airlines Logo
6:00 am - 2:05 pmSOF-ORD
16h 05m1 stop
$523United Airlines
Find Deal
Mon, Sep 15 - Fri, Oct 3
Austrian Airlines Logo
4:20 pm - 11:40 amORD-SOF
11h 20m1 stop
Austrian Airlines Logo
8:00 am - 1:20 pmSOF-ORD
13h 20m1 stop
$528Austrian Airlines
Find Deal
Mon, Oct 6 - Fri, Oct 24
United Airlines Logo
6:00 pm - 11:00 pmORD-SOF
21h 00m1 stop
United Airlines Logo
6:20 am - 2:55 pmSOF-ORD
16h 35m1 stop
$531United Airlines
Find Deal
Mon, Sep 29 - Tue, Oct 7
Austrian Airlines Logo
12:50 pm - 3:20 pmORD-SOF
18h 30m2 stops
Austrian Airlines Logo
8:00 am - 1:20 pmSOF-ORD
13h 20m1 stop
$533Austrian Airlines
Find Deal
Tue, Sep 16 - Thu, Oct 2
Turkish Airlines Logo
11:25 am - 8:35 amORD-SOF
13h 10m1 stop
Turkish Airlines Logo
9:25 am - 10:00 pmSOF-ORD
20h 35m1 stop
$541Turkish Airlines
Find Deal
Wed, Sep 3 - Wed, Sep 17
Lufthansa Logo
3:35 pm - 12:00 pmORD-SOF
12h 25m1 stop
Lufthansa Logo
6:00 am - 12:30 pmSOF-ORD
14h 30m1 stop
$553Lufthansa
Find Deal
Mon, Aug 25 - Wed, Sep 10

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
Aug 20
ORD11:25 amChicago O'Hare Intl
19h 20m
1 stop
SOF2:45 pmSofia
Sep 3
SOF3:35 pmSofia
26h 05m
1 stop
ORD9:40 amChicago O'Hare Intl
Turkish Airlines
Sep 3
ORD11:25 amChicago O'Hare Intl
13h 10m
1 stop
SOF8:35 amSofia
Sep 17
SOF9:25 amSofia
20h 35m
1 stop
ORD10:00 pmChicago O'Hare Intl

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

Our best United Airlines deals on Chicago O'Hare Intl Airport to Sofia flight tickets
United Airlines
Sep 15
ORD6:00 pmChicago O'Hare Intl
21h 00m
1 stop
SOF11:00 pmSofia
Oct 3
SOF6:00 amSofia
16h 05m
1 stop
ORD2:05 pmChicago O'Hare Intl
United Airlines
Sep 29
ORD6:00 pmChicago O'Hare Intl
21h 00m
1 stop
SOF11:00 pmSofia
Oct 7
SOF6:20 amSofia
16h 35m
1 stop
ORD2:55 pmChicago O'Hare Intl
United Airlines
Sep 16
ORD4:20 pmChicago O'Hare Intl
11h 20m
1 stop
SOF11:40 amSofia
Sep 30
SOF2:00 pmSofia
33h 48m
2 stops
ORD3:48 pmChicago O'Hare Intl

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 November. Flight prices, which tend to average around $576, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Sofia from Chicago O'Hare Intl Airport during February instead. Flights to Sofia in February, while not as cheap as those in November, still average around $624.

What is the cheapest day to depart on your flight to Sofia?

According to our data, Thursday is the cheapest day to fly to Sofia from Chicago O'Hare Intl Airport. The lowest ticket price found for a Thursday departure recently was $871. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Chicago O'Hare Intl Airport to Sofia on a Saturday will generally be more expensive and average around $1,039. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Sofia?

In the morning is the cheapest time of day to fly from Chicago O'Hare Intl Airport to Sofia when you can find flight prices for as low as $801. Flying to Sofia in the morning is an ideal time because this is during off-peak travel hours. At noon is when there is more demand to fly to Sofia, so prices are often more expensive at around $1,145 per ticket.

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 $780 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 $736 on momondo.

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

As of July 2025, prices for Chicago O'Hare Intl Airport to Sofia flights are approximately 33% 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

Best Price Found

$268

Fastest flight time

11h 20m

Direct flights

None

Airports in Sofia

1 airport
The best one-way flight to Sofia from Chicago O'Hare Intl Airport in the past 72 hours is $268. The best round-trip flight deal from Chicago O'Hare Intl Airport to Sofia found on momondo in the last 72 hours is $493.
The fastest flight from Chicago O'Hare Intl Airport to Sofia takes 11h 20m
There are no direct flights from Chicago O'Hare Intl Airport to Sofia. Popular non-direct route for this connection is Chicago O'Hare Intl Airport - Sofia Airport.
There is 1 airport near Sofia: Sofia (SOF)

  • 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 11h 20m.

  • 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
Turkish AirlinesPriceFrom $494Free CancellationRating
7.3
3,895 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $498Free CancellationRating
7.5
1,465 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,367 reviews
Search KLM flights
LOTPriceFrom $572Free CancellationRating
7.6
1,092 reviews
Search LOT flights
SWISSPriceFrom $596Free CancellationRating
7.5
1,654 reviews
Search SWISS flights
LufthansaPriceFrom $598Free CancellationRating
6.8
7,207 reviews
Search Lufthansa flights
Austrian AirlinesPriceFrom $605Free CancellationRating
7.6
809 reviews
Search Austrian Airlines flights
British AirwaysPriceFrom $613Free CancellationRating
6.6
7,093 reviews
Search British Airways flights
United AirlinesPriceFrom $616Free CancellationRating
7.4
8,861 reviews
Search United Airlines flights
Air SerbiaPriceFrom $652Free CancellationRating
6.3
197 reviews
Search Air Serbia flights

Traveling to a place near Sofia?

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Bansko
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Borovets
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.


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