IND - SOF

$738 Find Cheap Flights from Indianapolis to Sofia - Compare and Save

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 1/10. 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
$738
United Airlines
Sun 1/10Thu 1/14
IND - SOF • 2 stops
Top airlines
Cheapest • from $738 (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 10 - Thu, Jan 14
United Airlines Logo
7:44 pm - 6:20 pm
IND
-
SOF
15h 36m
2 stops
United Airlines Logo
6:25 am - 6:53 pm
SOF
-
IND
19h 28m
2 stops
$738United Airlines
Sun, Jan 10 - Thu, Jan 14
United Airlines Logo
7:44 pm - 6:20 pm
IND
-
SOF
15h 36m
2 stops
United Airlines Logo
6:25 am - 6:53 pm
SOF
-
IND
19h 28m
2 stops
$739United Airlines
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
10:20 am - 12:10 pm
IND
-
SOF
18h 50m
2 stops
Multiple Airlines Logo
3:40 pm - 4:33 pm
SOF
-
IND
31h 53m
2 stops
$793Multiple Airlines
Wed, Aug 19 - Fri, Aug 28
Lufthansa Logo
2:00 pm - 12:10 pm
IND
-
SOF
15h 10m
2 stops
Lufthansa Logo
6:20 am - 4:33 pm
SOF
-
IND
17h 13m
2 stops
$829Lufthansa
Wed, Aug 19 - Fri, Aug 28
Lufthansa Logo
2:00 pm - 6:40 pm
IND
-
SOF
21h 40m
2 stops
Lufthansa Logo
6:20 am - 11:56 pm
SOF
-
IND
24h 36m
2 stops
$837Lufthansa
Mon, Aug 17 - Mon, Aug 24
SWISS Logo
4:25 pm - 10:20 am
IND
-
SOF
34h 55m
3 stops
SWISS Logo
3:40 pm - 4:33 pm
SOF
-
IND
31h 53m
2 stops
$1,050SWISS
Wed, Aug 19 - Fri, Aug 28
Air Canada Logo
10:20 am - 6:05 pm
IND
-
SOF
24h 45m
2 stops
Air Canada Logo
6:20 am - 8:14 pm
SOF
-
IND
20h 54m
3 stops
$1,236Air Canada
Mon, Aug 17 - Mon, Aug 24
SWISS Logo
4:25 pm - 10:20 am
IND
-
SOF
58h 55m
3 stops
SWISS Logo
3:40 pm - 4:33 pm
SOF
-
IND
55h 53m
3 stops
$1,242SWISS
Wed, Aug 19 - Fri, Aug 28
Air Canada Logo
10:20 am - 6:40 pm
IND
-
SOF
25h 20m
2 stops
Air Canada Logo
6:20 am - 10:00 pm
SOF
-
IND
22h 40m
3 stops
$1,310Air Canada
Mon, Aug 17 - Mon, Aug 24
Multiple Airlines Logo
7:50 pm - 11:00 pm
IND
-
SOF
20h 10m
1 stop
Multiple Airlines Logo
6:20 am - 8:44 pm
SOF
-
IND
21h 24m
2 stops
$2,031Multiple 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 ($738) and Lufthansa ($829).

Good to know

Cheapest flight

$738
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 $738 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 $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 $1,069 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 10005 reviews
7.7Boarding
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
Airline reviews

Unbelievably smooth boarding at IAH and the flight attendants were top notch.

10.0 ExcellentAnonymous, Jul 2026
IAH - ANC
Read more United Airlines reviews

Unbelievably smooth boarding at IAH and the flight attendants were top notch.

We flew business fares. Was amazing. However, the check in didn't offer business fares preboarding which is less hectic. 8/10 due to this. Staff compared to Canadian carriers go above and beyond. Would gladly fly United again.

It was extremely hot in the cabin the entire flight, vent air was worn

The Wi-Fi did not work, so you weren't able to watch entertainment on your own device. They did not have wired headphones so you couldn't watch it on the in-seat entertainment screen either. There was plenty of time to do a drink and snag service but the flight attendants chose not to.

Great experience, boarding was fast and efficient, so much so that we arrived to Chicago very early

Comfortable seating POS to IAH. Food options were satisfactory. Good seat from IAH to ANC. Food options could be better.

The flight did not have its customary snacks during the flight. Apparently they were never loaded on the plane.

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.

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.

Aircraft had fairly roomy seats on economy. Food was good (beef dinner).

Broken seat did not recline fully, broken footrest, no air vents, no electricity for charging devices, outlets for headphones or isb did not work. Rude crew. Horrible experience. Would never fly Lufthansa again

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

Information on your arrival and departure airports