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 (20 hours 17 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 20 hours 17 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).

₹ 59,514+ 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 4 September 2026.

Thu 19/1123:55 -

2 stops35h 15m

Fri 30/405:00 -

2 stops28h 00m

Deal found 30/8₹ 97,395

Mon 21/923:35 -

2 stops26h 56m

Mon 8/306:45 -

2 stops25h 35m

Deal found 2/9₹ 97,490

Mon 21/923:35 -

2 stops26h 56m

Wed 10/306:45 -

2 stops49h 35m

Deal found 2/9₹ 102,213

Tue 22/923:35 -

2 stops31h 11m

Tue 16/306:00 -

2 stops27h 30m

Deal found 2/9₹ 102,308

Tue 22/923:35 -

2 stops31h 11m

Wed 10/305:00 -

3 stops28h 15m

Deal found 2/9₹ 102,591

Fri 13/1104:55 -

2 stops31h 35m

Mon 11/107:00 -

2 stops30h 10m

Deal found 31/8₹ 105,519

Sun 13/1204:55 -

2 stops31h 34m

Mon 11/107:00 -

2 stops30h 10m

Deal found 4/9₹ 105,992

Fri 25/923:35 -

2 stops33h 53m

Tue 9/305:00 -

2 stops27h 20m

Deal found 2/9₹ 107,503

Mon 14/1200:30 -

2 stops54h 36m

Wed 30/1223:52 -

2 stops32h 28m

Deal found 3/9₹ 107,787

Fri 25/923:35 -

2 stops33h 53m

Wed 10/313:00 -

2 stops43h 20m

Deal found 2/9₹ 112,132

Fri 11/1223:55 -

2 stops32h 19m

Wed 30/1223:52 -

2 stops32h 28m

Deal found 3/9₹ 112,227

Thu 12/1123:55 -

2 stops35h 15m

Sun 10/106:00 -

2 stops26h 20m

Deal found 31/8₹ 114,210

Find flight deals to Ontario

Return from	₹ 93,050
One-way from	₹ 59,231
Popular in	April
Cheapest in	November
Average price	₹ 98,245

22/9-3/2
4 total stops
52h 18m total
New Delhi to Los Angeles

Search Deals

21/1-31/12
2 total stops
52h 57m total
New Delhi to Ontario

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (₹ 5,597 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease (₹ 1,176 potential savings vs. average return price).

Search Deals

Average for return flights in September 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

Sun 25/10

23:55-21:40

2 stops34h 15m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 60,742

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Wed 4/11

23:55-21:40

2 stops35h 15m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 60,837

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Sun 13/12

05:10-11:17

2 stops43h 37m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 62,065

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Sun 27/9

02:05-22:40

2 stops33h 05m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 63,765

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Thu 1/10

02:05-22:24

2 stops32h 49m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 63,765

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Tue 2/2

21:40-22:41

2 stops38h 31m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 72,362

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Tue 8/9

01:10-18:40

2 stops30h 00m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 76,896

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Tue 20/10

10:50-20:31

1 stop22h 11m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 81,714

Fastest return journey

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Sat 24/10

03:25-12:29

1 stop21h 34m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 83,509

New DelhiOntario

DEL New Delhi Indira Gandhi Intl - ONT Ontario

DELONT

New Delhi Indira Gandhi Intl

Thu 10/9

18:50-22:40

2 stops40h 20m

Ontario

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 91,916

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 24 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

8,559 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

8,559 reviews

Delta

7.8

Good

8,559 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 (20 hours 17 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

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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?

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Can Cheapflights find flights to Ontario with no change fees?

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

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₹ 59,514+ Cheap flights to Ontario

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/10. 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 4 September 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 4 September 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 4 September 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 4 September 2026.

Last-minute flights to OntarioDiscover last-minute flight deals to Ontario. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals to Ontario. Data last updated 4 September 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 4 September 2026.

Search for one-way flight options to Ontario. Find affordable one-way fares based on user searches. Data last updated 4 September 2026.

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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 20 hours 17 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.

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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?

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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 4 September 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 4 September 2026.

Last-minute flights to Ontario
Discover last-minute flight deals to Ontario. Data last updated 4 September 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 4 September 2026.