IND - SOF

$524 Find Cheap Flights from Indianapolis to Sofia - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Indianapolis to Sofia departing on 9/3. 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

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Everything you should know

Cheapest round-trip
$739
United Airlines
Sun 1/24Tue 1/26
IND - SOF • 2 stops
Cheapest one-way
$524
Air Canada
Thu 9/3
IND - SOF • 2 stops
Top airlines
Cheapest • from $739 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Indianapolis and Sofia. You'll need at least 2 connections.
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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

Sun, Jan 24 - Tue, Jan 26
United Airlines Logo
2:40 pm - 1:15 pmIND  Indianapolis-SOF Sofia
15h 35m2 stops Washington, D.C. Dulles Intl Munich Franz Josef Strauss
United Airlines Logo
6:25 am - 10:03 pmSOF  Sofia-IND Indianapolis
22h 38m2 stops Frankfurt am Main Chicago O'Hare Intl
$739United Airlines
Sun, Jan 24 - Tue, Jan 26
United Airlines Logo
1:37 pm - 1:15 pmIND  Indianapolis-SOF Sofia
16h 38m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss
United Airlines Logo
6:25 am - 6:53 pmSOF  Sofia-IND Indianapolis
19h 28m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$739United Airlines
Mon, Sep 14 - Mon, Sep 21
Lufthansa Logo
7:26 pm - 10:40 pmIND  Indianapolis-SOF Sofia
20h 14m2 stops Chicago O'Hare Intl Frankfurt am Main
Lufthansa Logo
7:25 pm - 11:56 pmSOF  Sofia-IND Indianapolis
35h 31m2 stops Munich Franz Josef Strauss Washington, D.C. Dulles Intl
$855Lufthansa
Thu, Sep 3 - Thu, Sep 10
United Airlines Logo
10:00 am - 10:40 pmIND  Indianapolis-SOF Sofia
29h 40m2 stops Washington, D.C. Dulles Intl Frankfurt am Main
United Airlines Logo
6:30 am - 3:41 pmSOF  Sofia-IND Indianapolis
40h 11m2 stops Frankfurt am Main Toronto Pearson Intl
$910United Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
10:20 am - 6:25 pmIND  Indianapolis-SOF Sofia
25h 05m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
6:30 am - 3:41 pmSOF  Sofia-IND Indianapolis
40h 11m2 stops Frankfurt am Main Toronto Pearson Intl
$913Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
SWISS Logo
4:25 pm - 10:20 amIND  Indianapolis-SOF Sofia
34h 55m3 stops Chicago O'Hare Intl Milan Malpensa Zurich
SWISS Logo
3:40 pm - 4:33 pmSOF  Sofia-IND Indianapolis
31h 53m2 stops Zurich Chicago O'Hare Intl
$1,106SWISS
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
10:20 am - 11:15 pmIND  Indianapolis-SOF Sofia
29h 55m3 stops Toronto Pearson Intl Vienna Intl Munich Franz Josef Strauss
Multiple Airlines Logo
4:00 pm - 8:41 pmSOF  Sofia-IND Indianapolis
35h 41m3 stops Belgrade Nikola Tesla Vienna Intl Toronto Pearson Intl
$1,314Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
10:20 am - 2:00 pmIND  Indianapolis-SOF Sofia
20h 40m3 stops Toronto Pearson Intl Montreal Pierre Elliott Trudeau Intl Paris Charles de Gaulle
Multiple Airlines Logo
5:00 am - 8:41 pmSOF  Sofia-IND Indianapolis
22h 41m3 stops Belgrade Nikola Tesla Paris Charles de Gaulle Toronto Pearson Intl
$1,404Multiple Airlines
Thu, Sep 3 - Thu, Sep 10
Multiple Airlines Logo
10:20 am - 6:25 pmIND  Indianapolis-SOF Sofia
25h 05m2 stops Toronto Pearson Intl Frankfurt am Main
Multiple Airlines Logo
6:45 pm - 6:20 pmSOF  Sofia-IND Indianapolis
30h 35m3 stops Warsaw Frederic Chopin London Heathrow Dublin
$1,516Multiple Airlines
Mon, Sep 14 - Mon, Sep 21
Multiple Airlines Logo
7:50 pm - 11:00 pmIND  Indianapolis-SOF Sofia
20h 10m1 stop Dublin
Multiple Airlines Logo
12:55 pm - 3:41 pmSOF  Sofia-IND Indianapolis
33h 46m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$1,583Multiple 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 provide the cheapest flights from Indianapolis to Sofia?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 5 days.

In the past 5 days, the cheapest round-trip tickets from Indianapolis to Sofia were found on United Airlines ($739) and Lufthansa ($855).

Good to know

Cheapest flight

$524
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 5 days, the lowest price for a flight from Indianapolis to Sofia was $524 for a one-way ticket and $739 for a round-trip.

  • 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 $981 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 $1,095 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 10084 reviews
7.3Comfort
8.1Crew
7.7Boarding
7.1Entertainment
6.7Food
Airline reviews

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

2.0 MediocreCraig, Aug 2026
Read more United Airlines reviews

Flight was 2.5 late. Maybe not United’s fault but late none the less. We were late as well on the first leg. WiFi quit working with an hour left.

Old 757 with poor entertainment system. United no longer partners with United for free text and email. O'Hara an absolute disaster! Limited gates clauses two hour delay. Unfortunately this appears to be the norm.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

It was a good experience, unfortunately my checked baggages were come late and not arrived on time.

Very stressful to locate United Airline boarding area, delayed flight, changing boarding area again to another location with all tiredness 😩. But flying was fine.

Staff and flight attendants were very polite. Flight was smooth. My seat on the plane was a bit broken so it would not stay in upright position but it was fine for the most part.

Not a bad flight but a long delay boarding and taking off due to the pilot not arriving on time.

Ridiculous boarding. Enter the gate, walk down a staircase with bags, exit a building, get on a crowded bus, dropped off a few meters away from the aircraft, walk with bags to another set of stairs to board the aircraft. And all that during a pouring down rain, and with children. Ridiculous!!!

Lufthansa no longer offers any refreshments and snacks on short i.e., around 2 hrs flight. We still had full staff stewards/stewardesses. No idea why they were needed as there was no work for them during the flight

Flight was great. On time. Pleasant crew and responsible passengers. My only disappointment was that there was no coffee or tea offered. It was a short flight but a coffee would have been appreciated for what the price of tickets are now.

The crew could deploy more customer focus and not frown when asked a question. I’m speaking of one lady in particular who raised a hand in my face for me to wait whe I tried to ask a question and never came back to me. Very unprofessional and rude.

They set someone on our assigned seats and we ended up finding seats for ourselves to ensure the family sits together.

Very efficient and excellent service. Nice amenities and beautiful plane. Elevated meals. Boarding could have been more organized. We missed our connecting flight due to EU entry but Lufthansa was extremely quick to rebook us.

The agent, who took my mother to her gate, kept talking with one of her male coworkers and treating my mother like a sack of potatoes. She was ignoring my questions because she was too busy flirting with her male colleague. This was a very unprofessional behavior. We also had to wait for close to half an hour for an agent to arrive.

Very good flight, only problem is the boarding process where some peoples do not have manners and do not how to fly ( preparing your documents, oversized carry-ons, not understanding or feigning to not understand directives).

I really like it and travel to Europe and back with Lufthansa, but it is getting expensive, a bit beyond my me

Not available crew to load the luggage for all the passengers,comon situation for local European destinations , not acceptable situation, never Lufthansa again 😉 🙄

We had to board and unboard, this could have been avoided

Always left late, food horrible and customer service not helpful.

Flight was overbooked. Crew did a great job but passengers weren’t nice and really not patient. Flying in these times is not the best idea tbh.

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

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