What airport do you fly into for flights to Ontario?

Travellers will need to book flights to Ontario (ONT) if they wish to fly to Ontario. The Ontario airport is 4.9 km from the city centre.

Can I find cheaper flights to Ontario if I am willing to have stopovers?

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.

What is the best airline to fly to Ontario?

Based on reviews from Cheapflights users, Delta is rated the highest out of the airlines that fly to Ontario.

Where does the fastest flight to Ontario depart from?

For those looking to save time traveling to Ontario, New Delhi Indira Gandhi Intl offers the quickest one-way flight (25 hours 56 minutes).

Does Ontario have rental cars?

Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.

Are there hotels close to Ontario?

Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

What are the most popular airlines that fly to Ontario?

The most popular airline flying from New Delhi to Ontario is Delta.

How long is the flight to Ontario?

On average, a flight from New Delhi to Ontario takes 25 hours 56 minutes. Flights to Ontario from other popular cities in India will vary in length. Below are a few examples of popular routes and their flight times.

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 26.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 12.0 C).

₹ 60,173+ Cheap Flights to Ontario, California

Flights to Ontario in 2026

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 23 August 2026.

Thu 17/923:30 -

2 stops33h 07m

Thu 24/906:00 -

2 stops26h 30m

Deal found 18/8₹ 93,943

Sun 20/923:35 -

2 stops34h 54m

Sun 27/906:00 -

2 stops27h 00m

Deal found 21/8₹ 98,440

Thu 15/1023:35 -

2 stops34h 54m

Sun 17/105:00 -

2 stops27h 20m

Deal found 22/8₹ 98,631

Thu 3/1223:55 -

2 stops33h 55m

Wed 20/106:00 -

2 stops26h 20m

Deal found 18/8₹ 103,031

Tue 22/923:35 -

2 stops31h 11m

Tue 29/906:00 -

2 stops27h 00m

Deal found 23/8₹ 103,414

Wed 23/923:35 -

2 stops34h 54m

Mon 12/1006:00 -

2 stops27h 00m

Deal found 20/8₹ 108,389

Mon 21/923:35 -

2 stops32h 56m

Mon 28/906:00 -

2 stops27h 00m

Deal found 22/8₹ 108,580

Sun 1/1123:55 -

2 stops35h 15m

Sun 31/106:00 -

2 stops27h 15m

Deal found 21/8₹ 108,676

Fri 13/1107:30 -

2 stops29h 43m

Sat 5/1209:29 -

2 stops33h 46m

Deal found 19/8₹ 110,206

Mon 5/1023:35 -

2 stops30h 36m

Tue 20/1006:00 -

2 stops27h 00m

Deal found 20/8₹ 115,277

Fri 4/923:35 -

2 stops31h 07m

Sun 13/906:00 -

2 stops27h 00m

Deal found 18/8₹ 115,372

Mon 21/923:35 -

2 stops32h 56m

Tue 27/1006:00 -

2 stops27h 20m

Deal found 21/8₹ 115,468

Find flight deals to Ontario

Return from	₹ 95,952
One-way from	₹ 60,173
Popular in	April
Cheapest in	November
Average price	₹ 117,668

3/9-13/2
3 total stops
48h 01m total
New Delhi to Los Angeles

Search Deals

Japan Airlines
14/9
2 total stops
31h 17m total
New Delhi to Ontario

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (₹ 5,293 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (₹ 1,152 potential savings vs. average return price).

Search Deals

Average for return flights in August 2026

Search Deals

Fly from

Route

Depart

Return

Price

Cheapest return flight

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Mon 21/9

23:35-20:01

2 stops32h 56m

Ontario

Mon 28/9

06:00-21:30

2 stops27h 00m

₹ 115,755

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Thu 18/2

00:30-20:20

3 stops57h 20m

Ontario

Tue 23/2

06:45-21:50

2 stops25h 35m

₹ 116,042

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Mon 2/11

23:55-21:40

2 stops35h 15m

Ontario

Thu 26/11

05:00-21:50

2 stops27h 20m

₹ 135,558

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Thu 3/9

23:35-18:11

2 stops31h 06m

Ontario

Thu 24/9

05:00-21:30

2 stops28h 00m

₹ 140,532

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Thu 10/9

01:10-18:40

2 stops30h 00m

Ontario

Tue 15/12

22:50-21:35

2 stops33h 15m

₹ 155,073

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Tue 13/10

03:10-15:22

1 stop24h 42m

Ontario

Tue 27/10

06:00-20:30

2 stops26h 00m

₹ 161,100

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Mon 4/1

03:30-17:05

2 stops27h 05m

Ontario

Thu 10/6

00:10-20:55

2 stops32h 15m

₹ 184,921

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Sat 24/10

10:50-22:51

1 stop24h 31m

Ontario

Sat 31/10

06:00-20:30

2 stops26h 00m

₹ 185,973

Fastest return journey

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Tue 5/1

04:25-12:20

1 stop21h 25m

Ontario

Wed 10/2

06:00-20:25

2 stops24h 55m

₹ 217,064

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Wed 2/9

03:55-16:24

2 stops24h 59m

Ontario

Wed 23/9

13:04-01:55

2 stops24h 21m

₹ 232,371

Flights are sorted by cheapest return flights first.

Deals found on 22/8

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

DEL-ONT

Estimated return 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 to Ontario

Airlines

The cheapest airline flying from New Delhi to Ontario is Delta.

Reviews of airlines servicing Ontario

See what other customers who have flown with Delta to the United States have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.8

Good

8,513 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

7.8

Good

8,513 reviews

Delta

7.8

Good

8,513 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

FAQs about flying to Ontario

What airport do you fly into for flights to Ontario?
Travellers will need to book flights to Ontario (ONT) if they wish to fly to Ontario. The Ontario airport is 4.9 km from the city centre.
Can I find cheaper flights to Ontario if I am willing to have stopovers?
Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Ontario on Cheapflights that require 1 or 2 stops for potential cost savings.
What is the best airline to fly to Ontario?
Based on reviews from Cheapflights users, Delta is rated the highest out of the airlines that fly to Ontario.
Where does the fastest flight to Ontario depart from?
For those looking to save time traveling to Ontario, New Delhi Indira Gandhi Intl offers the quickest one-way flight (25 hours 56 minutes).
Does Ontario have rental cars?
Yes. Those touching down at Ontario can take advantage of the car hire services offered upon their arrival.
Are there hotels close to Ontario?
Yes. Ontario has hotels nearby for those requiring accommodations. Delta Hotels by Marriott Ontario Airport is the closest property to Ontario (0.0 km away from Ontario).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Flights by cabin class

Flights from Ontario

Flights to United States

Complete your trip

Popular routes

Popular destinations

Popular flights

Popular United States flight routes

Airlines

Search flights to Ontario by cabin class

First Class flights to Ontario

Business Class flights to Ontario

Prem Economy Class flights to Ontario

Economy Class flights to Ontario

Fly with Cheapflights

How does Cheapflights help users find flights to Ontario?

When you search for this flight to Ontario, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets to Ontario?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights to Ontario for you. Better yet — we are completely free to use.

Can Cheapflights find flights to Ontario with no change fees?

Yes! Cheapflights helps users easily find flights to Ontario with no change fees.

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

Not ready to book yet? You can track prices for flights to Ontario on Cheapflights with our Price Alerts feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book With Flexibility

Our users can plan ahead with confidence and find flights with no change fees.

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

₹ 60,173+ Cheap flights to Ontario

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel.

Flights to Ontario in 2026

Cheapest flights to OntarioExplore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 23 August 2026.

Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 23 August 2026.

Best flights to OntarioDiscover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 August 2026.

Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 August 2026.

Last-minute flights to OntarioDiscover last-minute flight deals to Ontario. Data last updated 23 August 2026 and is based on user searches.

Discover last-minute flight deals to Ontario. Data last updated 23 August 2026 and is based on user searches.

One-way flights to OntarioSearch for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 23 August 2026.

Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 23 August 2026.

Find flight deals to Ontario

Return from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights to Ontario that are best for you.

Best time to book a flight to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario with our price prediction graph.

Cheapflights Insights

What are the cheapest airlines that fly to Ontario?

The cheapest airline flying from New Delhi to Ontario is Delta.

Rainfall in Ontario by month

In terms of precipitation, rainfall in Ontario ranges from 3.0 - 86.0 mm per month. February is typically the wettest month, when rainfall can reach 86.0 mm. June is typically the driest time to visit Ontario when rainfall is around 3.0 mm.

Temperature in Ontario by month

How long is the flight to Ontario?

On average, a flight from New Delhi to Ontario takes 25 hours 56 minutes. Flights to Ontario from other popular cities in India will vary in length. Below are a few examples of popular routes and their flight times.

Reviews of airlines servicing Ontario

See what other customers who have flown with Delta to the United States have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

FAQs about flying to Ontario

What airport do you fly into for flights to Ontario?

Can I find cheaper flights to Ontario if I am willing to have stopovers?

What is the best airline to fly to Ontario?

Where does the fastest flight to Ontario depart from?

Does Ontario have rental cars?

Are there hotels close to Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Search flights to Ontario by cabin class

Find flights to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Find the best flight deals from Ontario

Some of the lowest fares we’ve come across for flights from Ontario.

Other flight destinations closest to Ontario

Book a flight to other destinations in United States.

Complete your trip

Reserve a car hire and hotel room to complete your trip to Ontario.

Most traveled routes by our users

Browse our most popular destinations

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Popular United States flight routes

Browse through the most popular flight routes to the United States at this time.

Fly your favourite airline to Ontario

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Fly with Cheapflights

How does Cheapflights help users find flights to Ontario?

Why should you use Cheapflights to find cheap flight tickets to Ontario?

Can Cheapflights find flights to Ontario with no change fees?

Can Cheapflights notify me if prices for flights to Ontario become cheaper?

100% Free

Book With Flexibility

Travel Smart

Cheapest flights to Ontario
Explore the most affordable flight options available to Ontario. Find the lowest fares based on data from user searches, with prices last updated on 23 August 2026.

Best flights to Ontario
Discover carefully curated flight deals to Ontario that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 23 August 2026.

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated 23 August 2026 and is based on user searches.

One-way flights to Ontario
Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 23 August 2026.