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$303+ Cheap flights from O'Hare Intl (ORD) to Sofia (SOF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SOF
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Chicago O'Hare Intl to Sofia are usually found in November or February, booked 70 days in advance, depart on a Thursday or Sunday and return on a Wednesday

Cheap flight deals from O'Hare Intl to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Sofia (SOF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$625
(FlightHub)

One-way from

$303
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$686
Provider with most accurate pricing for Chicago O'Hare Intl-Sofia flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Sofia flights.
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From Chicago O'Hare Intl to Sofia
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One-way flight from Chicago O'Hare Intl to Sofia
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Highest demand for flights based on searches. 28% potential increase in price ($311 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from O'Hare Intl to Sofia

Cheapest flights from O'Hare Intl to Sofia
Explore the most affordable flight options available from O'Hare Intl to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.

This FlightHub deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/2911:25 amORD - SOF
1 stop13h 10mTurkish Airlines
mar. 10/79:15 pmSOF - ORD
1 stop20h 25mTurkish Airlines
Deal found 4/28$621
This CrystalTravel deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/43:35 pmORD - SOF
1 stop12h 25mLufthansa
lun. 8/257:25 pmSOF - ORD
1 stop25h 05mLufthansa
Deal found 4/29$627
This Gotogate deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 11/2811:20 amORD - SOF
2 stops18h 15mMultiple Airlines
jue. 1/294:00 pmSOF - ORD
1 stop32h 15mMultiple Airlines
Deal found 4/28$628
This Air Serbia deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/174:30 pmORD - SOF
1 stop15h 05mAir Serbia
mar. 9/304:05 pmSOF - ORD
1 stop30h 20mAir Serbia
Deal found 4/28$635
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/12:20 pmORD - SOF
1 stop11h 45mSWISS
mar. 8/191:15 pmSOF - ORD
1 stop30h 55mSWISS
Deal found 4/28$644
This oojo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/65:10 pmORD - SOF
1 stop12h 40mLOT
mié. 8/206:40 pmSOF - ORD
1 stop25h 40mLOT
Deal found 4/28$648
This CheapOair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/168:40 amORD - SOF
2 stops20h 25mAir Canada
vie. 11/76:00 amSOF - ORD
2 stops16h 45mAir Canada
Deal found 4/29$657
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/232:20 pmORD - SOF
2 stops13h 40mUnited Airlines
mié. 11/196:00 amSOF - ORD
2 stops16h 45mUnited Airlines
Deal found 4/29$658
This Austrian Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/121:05 pmORD - SOF
2 stops26h 50mAustrian Airlines
vie. 9/194:05 pmSOF - ORD
1 stop29h 15mAustrian Airlines
Deal found 4/29$735
This British Airways deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 9/272:06 pmORD - SOF
2 stops22h 14mBritish Airways
dom. 10/129:10 pmSOF - ORD
1 stop26h 45mBritish Airways
Deal found 4/29$791

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl 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, Cheapflights users made 2,558,603 searches. Data last updated abril 30, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Sofia that are best for you.

Fly from

O'Hare Intl

Fly to

Sofia

Route

Depart

Return

Price

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 9/29

11:25 am-8:35 am

1 stop13h 10m

Sofia

mar. 10/7

9:15 pm-9:40 am

1 stop20h 25m

$621

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

lun. 8/4

3:35 pm-12:00 pm

1 stop12h 25m

Sofia

lun. 8/25

7:25 pm-12:30 pm

1 stop25h 05m

$627

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mié. 8/6

2:20 pm-10:05 am

1 stop11h 45m

Sofia

mar. 8/26

8:00 am-1:20 pm

1 stop13h 20m

$631

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mié. 9/17

4:30 pm-3:35 pm

1 stop15h 05m

Sofia

sáb. 9/27

5:00 am-9:00 pm

1 stop24h 00m

$635

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

vie. 8/1

2:20 pm-10:05 am

1 stop11h 45m

Sofia

mar. 8/19

1:15 pm-12:10 pm

1 stop30h 55m

$644

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mié. 8/6

5:10 pm-1:50 pm

1 stop12h 40m

Sofia

mié. 8/20

6:40 pm-12:20 pm

1 stop25h 40m

$648

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

jue. 10/16

8:40 am-1:05 pm

2 stops20h 25m

Sofia

vie. 11/7

6:00 am-2:45 pm

2 stops16h 45m

$657

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mié. 7/23

2:20 pm-12:00 pm

2 stops13h 40m

Sofia

mié. 11/19

6:00 am-2:45 pm

2 stops16h 45m

$658

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

mar. 8/12

1:05 pm-11:55 pm

2 stops26h 50m

Sofia

vie. 9/19

4:05 pm-1:20 pm

1 stop29h 15m

$735

ChicagoSofia

ORD - SOF

ORDSOF

Chicago O'Hare Intl

sáb. 9/27

2:06 pm-8:20 pm

2 stops22h 14m

Sofia

dom. 10/12

9:10 pm-3:55 pm

1 stop26h 45m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 18 results
1
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Compare providers for flights from O'Hare Intl to Sofia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Sofia in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
oojoPrice Accuracy3 starsTrust Score*3 stars
FlightnetworkPrice Accuracy-Trust Score*3 stars
CheapflightsfaresPrice Accuracy-Trust Score*2 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Sofia flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Chicago O'Hare Intl Airport-Sofia flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Sofia flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Sofia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from O'Hare Intl to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from O'Hare Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Chicago O'Hare Intl Airport to Sofia

How far ahead should I book a flight from Chicago O'Hare Intl Airport to Sofia?

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Sofia. Price data was last updated on April 25, 2025.

The best time to book flights from Chicago O'Hare Intl Airport to Sofia is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sofia?

Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $632). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from ORD to SOF?

Find hourly flight availability from O'Hare Intl to Sofia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated abril 30, 2025.

Unlike at noon, when flights are generally more expensive, you can save up to 33% on flights from Chicago O'Hare Intl Airport to Sofia by exploring options for tickets in the morning.

What is the cheapest day to fly from Chicago O'Hare Intl Airport to Sofia?

Use this chart to determine the cheapest time to fly round-trip from O'Hare Intl to Sofia. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Chicago O'Hare Intl Airport to Sofia flight should consider departing on Monday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Sofia by month

Plan your trip to Sofia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sofia ranges from 1.2 - 2.8 inches per month. June is typically the wettest month, when rainfall can reach 2.8 in. January is typically the driest time to visit Sofia when rainfall is around 1.2 in.

Temperature in Sofia by month

Plan your trip to Sofia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sofia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

Reviews of airlines servicing Sofia

Get insights into the airlines that provide service to Sofia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sofia. Reviews last updated abril 30, 2025.
Read reviews from past customers who have flown LOT, Austrian Airlines and SWISS from Chicago to Sofia. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
LOT
7.6
Good
1,069 reviews
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
Austrian Airlines
7.6
Good
780 reviews
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
SWISS
7.5
Good
1,588 reviews
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
United Airlines
7.4
Good
8,696 reviews
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.
Turkish Airlines
7.3
Good
3,788 reviews
LOT
7.6
Good
1,069 reviews

Food

7.2

Comfort

7.5

Boarding

7.6

Entertainment

7.0

Overall

7.6

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Tomasz,Jan 2025

JFK - WAW

The food this time was delicious. Pasta meal with mushroom sauce, cobb salad, and real metal utensils.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Sofia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Sofia from Chicago O'Hare Intl?

    Sofia (SOF) is the airport you will fly into if you book a flight from Chicago O'Hare Intl to Sofia. You should not have trouble finding flights to Sofia from Chicago O'Hare Intl; the airport handles an average of 0 inbound flights from Chicago O'Hare Intl per day. You should also have plenty of airline options to choose from since 10 airlines have flights to the Sofia airport from Chicago O'Hare Intl. It is only a 4.2 mi journey from Sofia (SOF) to Sofia’s city center.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to Sofia round-trip?

    Our cheapest airline available from Chicago O'Hare Intl Airport to Sofia is Turkish Airlines. Our recent data shows that you can find tickets from as low as $625 on this airline. Additional options worth looking into are Lufthansa and SWISS, starting at $627 and $644 round-trip. You may be able to fly from Chicago O'Hare Intl Airport to Sofia for 20% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Sofia one-way?

    To fly one-way, consider booking your trip with Air Serbia, which is currently one of the cheapest options available, starting at $370. Turkish Airlines flights start at $394 while deals on Air Canada start at $490 one-way.

  • Where are the most common layover locations when flying from Chicago O'Hare Intl Airport to Sofia?

    Chicago O'Hare Intl Airport to Sofia flights have a layover in Istanbul most often. Warsaw is the second most popular location for layovers on flights from Chicago O'Hare Intl Airport to Sofia.

  • What are some popular things to do or see while on a layover in Istanbul?

    Istanbul travelers tend to visit Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani more than anywhere else. Travelers on a layover in Istanbul can visit Taksim Square, Sultan Ahmet Camii, and Beyazit Meydani, by traveling 20.8 mi, 22.3 mi, and 21.7 mi, respectively after landing at Istanbul. Travelers can book a car rental at Istanbul for about $32 per day to make their sightseeing more efficient.

  • What are some popular points of interest to see during a layover in Warsaw?

    Warsaw travelers tend to visit Warsaw Old Town, Natolin, and Pałac Kultury i Nauki more than any other notable places. Warsaw Old Town, Natolin and Pałac Kultury i Nauki are located about 6.1 mi, 5.0 mi, and 4.8 mi, respectively from Warsaw Frederic Chopin if you are interested in checking them out. Travelers can book a car rental at Warsaw Frederic Chopin for about $28 per day to make their sightseeing more efficient.

  • Where are the least popular layover locations for Chicago O'Hare Intl Airport to Sofia flights?

    Chicago O'Hare Intl Airport to Sofia flights that have layovers will least frequently stop in Frankfurt am Main. Munich sees the second fewest layovers for non-direct flights flying from Chicago O'Hare Intl Airport to Sofia.

  • Can I find deals for flights from O'Hare Intl to Sofia that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Sofia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Sofia.

  • Can I find deals for business class flights from O'Hare Intl to Sofia?

    Yes. Cheapflights offers flight deals from O'Hare Intl to Sofia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Sofia?

    Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Sofia (average of $632). Flying from Chicago O'Hare Intl Airport to Sofia in June is currently the most expensive (average of $1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for O'Hare Intl to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Sofia flights

Top 10 airlines flying from O'Hare Intl to Sofia

Discover the top 10 airlines that operate flights from O'Hare Intl to Sofia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$498Average$788FlexibilityNo cancel feeOn-time77%
LOTCheapest$574Average$872FlexibilityNo cancel feeOn-time81%
KLMCheapest$578Average$739FlexibilityNo cancel feeOn-time75%
Austrian AirlinesCheapest$611Average$1,004FlexibilityNo cancel feeOn-time78%
SWISSCheapest$611Average$1,027FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$614Average$978FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$618Average$851FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$628Average$824FlexibilityNo cancel feeOn-time70%
Air SerbiaCheapest$634Average$1,029FlexibilityNo cancel feeOn-timeN/A
ITA AirwaysCheapest$679Average$890FlexibilityNo cancel feeOn-time81%

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