IND - SOF

$546 Find Cheap Flights from Indianapolis to Sofia

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to Sofia departing on 2/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sofia

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Sofia, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Indianapolis to Sofia, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$546
United Airlines
Thu 2/5Sun 2/8
IND - SOF • 2 stops
Cheapest one-way
Multiple Airlines
Wed 1/7
IND - SOF • multi-stop
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Indianapolis to Sofia (IND-SOF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Indianapolis to Sofia that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Indianapolis to Sofia

Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
12:25 pm - 10:45 pm
IND
-
SOF
27h 20m2 stops
United Airlines Logo
6:10 am - 10:14 pm
SOF
-
IND
23h 04m2 stops
$546United Airlines
Thu, Feb 5 - Sun, Feb 8
United Airlines Logo
3:38 pm - 10:45 pm
IND
-
SOF
24h 07m2 stops
United Airlines Logo
6:10 am - 11:30 pm
SOF
-
IND
24h 20m2 stops
$547United Airlines
Wed, Feb 18 - Sun, Feb 22
United Airlines Logo
12:07 pm - 6:20 pm
IND
-
SOF
23h 13m2 stops
United Airlines Logo
6:05 am - 11:44 pm
SOF
-
IND
24h 39m2 stops
$548United Airlines
Tue, May 19 - Thu, Jul 30
United Airlines Logo
10:20 am - 12:10 pm
IND
-
SOF
18h 50m2 stops
United Airlines Logo
6:10 am - 11:17 pm
SOF
-
IND
24h 07m2 stops
$817United Airlines
Tue, May 19 - Wed, Jul 29
United Airlines Logo
10:20 am - 12:10 pm
IND
-
SOF
18h 50m2 stops
United Airlines Logo
12:55 pm - 4:09 pm
SOF
-
IND
34h 14m2 stops
$828United Airlines
Sun, May 17 - Thu, Jul 30
United Airlines Logo
7:45 pm - 11:10 pm
IND
-
SOF
20h 25m2 stops
United Airlines Logo
6:10 am - 11:17 pm
SOF
-
IND
24h 07m2 stops
$863United Airlines
Sat, May 16 - Thu, Jul 30
United Airlines Logo
7:45 pm - 11:10 pm
IND
-
SOF
20h 25m2 stops
United Airlines Logo
6:10 am - 4:09 pm
SOF
-
IND
16h 59m2 stops
$873United Airlines
Sun, May 17 - Wed, Jul 29
United Airlines Logo
7:45 pm - 11:10 pm
IND
-
SOF
20h 25m2 stops
United Airlines Logo
12:55 pm - 4:09 pm
SOF
-
IND
34h 14m2 stops
$874United Airlines
Fri, May 15 - Thu, Jul 30
Lufthansa Logo
7:45 pm - 11:10 pm
IND
-
SOF
20h 25m2 stops
Lufthansa Logo
6:10 am - 4:09 pm
SOF
-
IND
16h 59m2 stops
$878Lufthansa
Sat, May 16 - Wed, Jul 29
United Airlines Logo
7:45 pm - 11:10 pm
IND
-
SOF
20h 25m2 stops
United Airlines Logo
12:55 pm - 4:09 pm
SOF
-
IND
34h 14m2 stops
$884United Airlines
Booking Insights

KAYAK's insights & trends for Indianapolis to Sofia flights

Get data-powered insights and trends into flights from Indianapolis to Sofia to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Indianapolis and Sofia?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Indianapolis to Sofia.

There are 2 airlines that fly nonstop from Indianapolis to Sofia. They are Lufthansa and United Airlines. The cheapest airline for this route is United Airlines, with the best round-trip deal found costing $628. On average, the best prices for this route can be found at United Airlines.

Good to know

Cheapest flight$546
Flight from Indianapolis to Sofia

When to book flights from Indianapolis to Sofia

Are your dates flexible? Find out the best times to travel from Indianapolis to Sofia based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Indianapolis to Sofia

  • What is the cheapest flight from Indianapolis to Sofia?

    In the last 3 days, the lowest price for a flight from Indianapolis to Sofia was $546 for a round-trip ticket.

  • Do I need a passport to fly between Indianapolis and Sofia?

    A passport is required to fly from Indianapolis to Sofia.

  • Which aircraft models fly most regularly from Indianapolis to Sofia?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Indianapolis to Sofia?

    Star Alliance is the only airline alliance operating flights between Indianapolis and Sofia.

  • Which is the best airline for flights from Indianapolis to Sofia, United Airlines or Lufthansa?

    The two airlines most popular with KAYAK users for flights from Indianapolis to Sofia are United Airlines and Lufthansa. With an average price for the route of $1,209 and an overall rating of 7.4, United Airlines is the most popular choice. Lufthansa is also a great choice for the route, with an average price of $1,262 and an overall rating of 6.8.

  • How does KAYAK find such low prices on flights from Indianapolis to Sofia?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Indianapolis to Sofia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Indianapolis to Sofia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sofia from Indianapolis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Indianapolis to Sofia?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sofia with an airline and back to Indianapolis with another airline. Booking your flights between Indianapolis and SOF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Indianapolis to Sofia?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sofia from Indianapolis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Indianapolis to Sofia

 
See real verified KAYAK customer reviews for airlines flying from Indianapolis to Sofia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Indianapolis to Sofia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9138 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

6.0 GoodTobin, Jan 2026
LAX - CUN
Read more United Airlines reviews

It was great with United overall except for two things. 1) It was a 5-hour flight and we were with kids, so we were asking for extra snacks. They were extremely reticent to dole them out even though there wasn't any meal and the kids were starting to hit their limit towards the end. 2) Baggage didn't arrive until 80 minutes after we landed.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

The staff was hospitable and professional. The seat had a bit of wear. The winner shade was stuck 1/4 open. I received the best of both worlds. The morning sun was able to come in and blind the screen i was trying to use while at the same time it was too low to look out and enjoy the view. Rather embarrassing for a 1st class ticket.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

I’m so sorry, I can’t remember her name, I believe it was Dimpti. She was stellar, also a mature Asian flight attendant, lots of flowers in her hair, just as amazing! But literally the crew was AWESOME . Only downside is there weren’t any charging outlets. Maybe I needed to ask a flight attendant , but it would’ve been nice to have one easily accessible.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

Aircraft was noisy, old and never dimmed the lights on a night flight even on business class! I flew 17 times on United and probably another 40 on other airlines United USA /Europe flights were the worst to include luggage delayed once going to europe and once coming back

Check how old the airframe is, some older ones have inoperable seat back entertainment or power.

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

Late flight Delays Poor service Poor staff Worst airline ever

Ground staff and cabin crew were excellent. Flight was perfectly on time. Zero issues.

Even after a delay, getting off the ground, thanks for keeping me safe, the airline made certain that my connecting flight was rebooked to get me to my final destination. It was actually rebooked twice, and my luggage still managed to meet me. The airline gave me a credit for food and beverage to be used at the airport vendors, regretfully, the credit did not transfer to my final boarding pass. Oh, well…

Trip was smooth, good drew, average meal, almost cold coffee. Excellent landing. Did not enjoy going down the stairs, walking to the gate, walking up the stairs, going a long walk to the exchange gate, and going down the stairs again to be bussed all the way where we originally landed to take our next flight! Over all an average experience. Thank you.

I booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

Everything you need to know for your flight from Indianapolis to Sofia

Information on your arrival and departure airports