Cheap flights from Indianapolis to Ontario International

Roundtrip selected

origin

Enter the city you're flying from, or choose from the options below

Include nearby airports

selected

destination

. Enter your destination, or choose from the options below

Include nearby airports

selected

Travelers and cabin class, 1 Adult, Economy

Compare Indianapolis to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Flight deals Cheapest month Find the best route Route info FAQs Tips and advice

Flight deals from Indianapolis to Ontario International

Looking for a cheap last-minute deal or the best round-trip flight from Indianapolis Airport to Ontario International Airport? If you want to travel next month, round-trip fares start from $213. Find the lowest prices on one-way and round-trip tickets right here.

Ontario.$208 per passenger.Departing Tue, Oct 27, returning Tue, Nov 3.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Indianapolis on Tue, Oct 27, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departing from Ontario International on Tue, Nov 3, arriving in Indianapolis.Price includes taxes and charges.From $208, select.

Ontario.$213 per passenger.Departing Wed, Oct 14, returning Wed, Oct 21.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Indianapolis on Wed, Oct 14, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departing from Ontario International on Wed, Oct 21, arriving in Indianapolis.Price includes taxes and charges.From $213, select.

Ontario.$231 per passenger.Departing Wed, Nov 11, returning Sat, Nov 14.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Indianapolis on Wed, Nov 11, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departing from Ontario International on Sat, Nov 14, arriving in Indianapolis.Price includes taxes and charges.From $231, select.

Ontario.$353 per passenger.Departing Wed, Jan 6, returning Wed, Jan 13.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Wed, Jan 6, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Wed, Jan 13, arriving in Indianapolis.Price includes taxes and charges.From $353, select.

Ontario.$353 per passenger.Departing Thu, Dec 17, returning Sat, Jan 9.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Thu, Dec 17, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Sat, Jan 9, arriving in Indianapolis.Price includes taxes and charges.From $353, select.

Ontario.$353 per passenger.Departing Wed, Dec 2, returning Thu, Dec 3.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Wed, Dec 2, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Thu, Dec 3, arriving in Indianapolis.Price includes taxes and charges.From $353, select.

Ontario.$375 per passenger.Departing Mon, Feb 8, returning Sat, Feb 13.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Mon, Feb 8, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Sat, Feb 13, arriving in Indianapolis.Price includes taxes and charges.From $375, select.

Ontario.$377 per passenger.Departing Sat, Nov 21, returning Sat, Jan 30.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Sat, Nov 21, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Sat, Jan 30, arriving in Indianapolis.Price includes taxes and charges.From $377, select.

Ontario.$378 per passenger.Departing Wed, Sep 16, returning Thu, Sep 17.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Indianapolis on Wed, Sep 16, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departing from Ontario International on Thu, Sep 17, arriving in Indianapolis.Price includes taxes and charges.From $378, select.

Ontario.$390 per passenger.Departing Fri, Nov 27, returning Sat, Dec 5.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Indianapolis on Fri, Nov 27, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departing from Ontario International on Sat, Dec 5, arriving in Indianapolis.Price includes taxes and charges.From $390, select.

Ontario.$405 per passenger.Departing Tue, Sep 15, returning Thu, Oct 29.Round-trip flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departing from Indianapolis on Tue, Sep 15, arriving in Ontario International.Inbound indirect flight with Frontier Airlines, departing from Ontario International on Thu, Oct 29, arriving in Indianapolis.Price includes taxes and charges.From $405, select.

Ontario.$445 per passenger.Departing Thu, Jan 28, returning Mon, Feb 1.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Indianapolis on Thu, Jan 28, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departing from Ontario International on Mon, Feb 1, arriving in Indianapolis.Price includes taxes and charges.From $445, select.

Ontario.$448 per passenger.Departing Sat, Feb 27, returning Tue, Mar 2.Round-trip flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departing from Indianapolis on Sat, Feb 27, arriving in Ontario International.Inbound indirect flight with Southwest Airlines, departing from Ontario International on Tue, Mar 2, arriving in Indianapolis.Price includes taxes and charges.From $448, select.

Ontario.$466 per passenger.Departing Sun, Apr 25, returning Sun, May 2.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Indianapolis on Sun, Apr 25, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departing from Ontario International on Sun, May 2, arriving in Indianapolis.Price includes taxes and charges.From $466, select.

Ontario.$467 per passenger.Departing Mon, May 10, returning Fri, May 21.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Indianapolis on Mon, May 10, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departing from Ontario International on Fri, May 21, arriving in Indianapolis.Price includes taxes and charges.From $467, select.

Ontario.$467 per passenger.Departing Tue, May 18, returning Tue, Jun 1.Round-trip flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departing from Indianapolis on Tue, May 18, arriving in Ontario International.Inbound indirect flight with Alaska Airlines, departing from Ontario International on Tue, Jun 1, arriving in Indianapolis.Price includes taxes and charges.From $467, select.

Find the cheapest month to fly from Indianapolis to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Indianapolis to Ontario International flights are currently cheapest in October.

Sep

Oct

Nov

Dec

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Indianapolis to Ontario International: Alternative routes

Compare routes from Indianapolis to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Indianapolis to Ontario: Flight information

The things to know before you go.

Cheapest flight found	$208
Cheapest month to fly	October

Finding cheap flights from Indianapolis to Ontario International: Frequently asked questions

How much are round-trip flights from Indianapolis to Ontario International?

The best price we found for a round-trip flight from Indianapolis to Ontario International is $208. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Indianapolis to Ontario International?

Currently, there are no airlines that fly direct from Indianapolis to Ontario International. But we found flights with one or more stops from $208.

How many flights are there a week from Indianapolis to Ontario International?

There are no flights flying from Indianapolis to Ontario International, as of September 2026.

When is the cheapest time to fly from Indianapolis to Ontario International?

The cheapest month to fly from Indianapolis to Ontario International is usually October.

Which upcoming date is cheapest to fly from Indianapolis Airport to Ontario International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Indianapolis Airport to Ontario International Airport on Tuesday, October 27, 2026.

Can I get a direct flight from Indianapolis Airport to Ontario International Airport?

No airlines currently offer direct flights between Indianapolis Airport and Ontario International Airport. Most routes have one or more stops.

How can I find the best flight deal to Ontario International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Ontario?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Indianapolis Airport to Ontario International?

Currently, Frontier Airlines offers the cheapest flight tickets to Ontario International.

Traveling from Indianapolis Airport (IND) to Ontario International Airport (ONT): what you need to know

Ontario is three hours behind Indianapolis and follows the UTC-8 timezone.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport on time to board your IND to ONT flight.
You can expect longer queues during popular months like October. Arriving up to four hours in advance for international flights and two hours for a domestic departure is a smart move.
Think about adding a stopover when booking your ticket from Indianapolis Airport to Ontario International Airport. Just uncheck 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here are some options between IND and ONT:
- Dallas Fort Worth International Airport
- Denver International Airport
- Phoenix Sky Harbor Airport

Handy information about Indianapolis Airport (IND)

The address for IND is 7800 Col. H. Weir Cook Memorial Drive.
When it comes to the on-time performance of Indianapolis Airport, 78% of flights arrive within the scheduled timeframe.
To get to Indianapolis Airport from central Indianapolis, it takes around 20 minutes if you're planning to drive. Of course, this depends on traffic. It's approximately 18 kilometers from the airport to the city center.
Planning to take public transport? Expect a trip time of around 50 minutes.
Searching for a convenient hotel close to IND? If you're catching an early flight from Indianapolis Airport to Ontario International Airport, these accommodation options will have you moments from your check-in counter:

Arriving at Ontario International Airport (ONT)

If you're landing on a late Indianapolis Airport to Ontario International Airport flight, few things beat the convenience of being close to the terminal. Pick up your bags from the carousel and then be resting shortly after at one of these accommodation options near ONT:
Get your adventure underway by picking up a Ontario International Airport rental car. Grab a set of wheels from Dollar, Fox - Rent A Car or Thrifty and explore beyond Ontario's usual tourist stops.
Lock in the best rate by reserving your vehicle from Ontario International Airport around three weeks in advance of your trip.

Getting from Ontario International Airport (ONT) to central Ontario

The address for ONT is 2900 E. Airport Drive.
Ontario International Airport is approximately 10 kilometers from the center of Ontario. Driving there takes about 15 minutes.
Getting to the center on public transport typically takes 45 minutes.

When to fly to Ontario International Airport (ONT)

July is the most popular month for flights from Indianapolis Airport to Ontario International Airport. For smaller crowds, head to Ontario in March.
Lock in your flight from Indianapolis Airport to Ontario International Airport for August if you want to visit Ontario during its warmest month. You can expect temperatures of between 16ºC (61ºF) and 36ºC (97ºF).
If you like traveling in cooler conditions, search for a cheap ticket from IND to ONT in February. Temperatures average between 4ºC (39ºF) and 24ºC (75ºF) then.

Explore more of the United States

Los Angeles is just one of the many cities in the United States waiting to be discovered after you've seen Ontario. Around 56 kilometers away to the west, well-known attractions include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.
Around 153 kilometers south of Ontario, San Diego is another favorite stop in the United States. Experience the best of this destination with a visit to San Diego Zoo, San Diego Balboa Park and USS Midway Museum.