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$644+ Cheap flights from Indianapolis (IND) to Sofia (SOF)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
IND — SOF
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Find flight deals from Indianapolis to Sofia

Cheapest flights from Indianapolis to Sofia
Explore the most affordable flight options available from Indianapolis to Sofia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.

This Gurufare deal was found by Cheapflights users on 11/3. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1811:54 amIND - SOF
2 stops29h 01mMultiple Airlines
Thu 12/252:35 pmSOF - IND
2 stops16h 09mMultiple Airlines
Deal found 11/3$1,296
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 12/186:00 amIND - SOF
3 stops29h 00mUnited Airlines
Thu 12/252:35 pmSOF - IND
2 stops16h 24mUnited Airlines
Deal found 11/3$1,436

Cheap flight deals from Indianapolis to Sofia

Discover tips and strategies to find the most affordable flight options for your journey from Indianapolis (IND) 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 November 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$643
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$923
Provider with most accurate pricing for Indianapolis-Sofia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Indianapolis-Sofia flights.
Search Deals
From Indianapolis to Sofia
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($354 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($71 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Indianapolis 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 November 4, 2025.
Use the filters below to find and compare flights from Indianapolis to Sofia that are best for you.

Fly from

Indianapolis

Fly to

Sofia

Route

Depart

Return

Price

IndianapolisSofia

IND - SOF

INDSOF

Indianapolis

Wed 3/11

10:49 am-6:20 pm

2 stops25h 31m

Sofia

Sun 3/15

6:10 am-9:43 pm

2 stops21h 33m

$644

IndianapolisSofia

IND - SOF

INDSOF

Indianapolis

Thu 12/18

11:54 am-11:55 pm

2 stops29h 01m

Sofia

Thu 12/25

2:35 pm-11:44 pm

2 stops16h 09m

$1,296

IndianapolisSofia

IND - SOF

INDSOF

Indianapolis

Thu 12/18

6:00 am-6:00 pm

3 stops29h 00m

Sofia

Thu 12/25

2:35 pm-11:59 pm

2 stops16h 24m

$1,436

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/2

Compare providers for flights from Indianapolis 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 Indianapolis to Sofia in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Indianapolis-Sofia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Indianapolis-Sofia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Indianapolis-Sofia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Indianapolis-Sofia flights, Cheapflights users trust Expedia the most. Expedia 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 Indianapolis-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 Indianapolis to Sofia

Have a flexible travel schedule? Discover the best time to fly to Sofia from Indianapolis 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 Indianapolis to Sofia

What is the cheapest month to book a flight from Indianapolis to Sofia?

Currently, December is the cheapest month in which you can book a flight from Indianapolis to Sofia (average of $569). Flying from Indianapolis to Sofia in October is currently the most expensive (average of $1,036). 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 IND to SOF?

Find hourly flight availability from Indianapolis 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 November 4, 2025.

One of the essential ways to save on airfare from Indianapolis to Sofia is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 15% on airfare.

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 November 4, 2025.
Get a feel of what it's like to fly with United Airlines and Lufthansa from Indianapolis to Sofia by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,002 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,002 reviews
United Airlines
7.4
Good
9,002 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
Lufthansa
6.8
Okay
7,552 reviews
United Airlines
7.4
Good
9,002 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

Related info for your journey

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

  • How long is the flight from Indianapolis to Sofia?

    There are many flights that can get you from Indianapolis to Sofia in 25h 31m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 5244 mi.

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

    Cheapflights users have booked flights from Indianapolis to Sofia round-trip from $628. Another airline that can offer you cheap pricing is Lufthansa. Users have found that United Airlines is 33% cheaper than the other options available to this destination.

  • Can I find deals for flights from Indianapolis to Sofia that include hotel bookings?

    Yes. In addition to deals on Indianapolis to Sofia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Indianapolis to Sofia?

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

  • Can I find deals for business class flights from Indianapolis to Sofia?

    Yes. Cheapflights offers flight deals from Indianapolis 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 Indianapolis to Sofia?

    Currently, December is the cheapest month in which you can book a flight from Indianapolis to Sofia (average of $569). Flying from Indianapolis to Sofia in October is currently the most expensive (average of $1,036). 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 Indianapolis to Sofia

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Sofia flights
Midway to Sofia flights
Cincinnati to Sofia flights
Dayton to Sofia flights
South Bend to Sofia flights

Top 2 airlines flying from Indianapolis to Sofia

Discover the top 2 airlines that operate flights from Indianapolis 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$628Average$1,210FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$688Average$1,242FlexibilityNo cancel feeOn-time76%

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