£464 Cheap Flights from Delhi (DEL) to Ontario Intl. Airport (ONT)

View £464 flight on Thu, 15 Oct 2026Opens in a new window

Popular airlines from Indira Gandhi International Airport (DEL) to Los Angeles - Ontario Intl. Airport (ONT)

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Cheap Flights from Delhi (DEL) to Ontario Intl. Airport (ONT)

Prices were available within the past 7 days and start at £464 for one-way flights and £2,017 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Finnair
Sat, 29 Aug - Sat, 19 Dec
DEL
Delhi
ONT
Ontario
£2,017 Return, found 2 days ago
£2,017
Return
found 2 days ago
Select Finnair flight, departing Sat, 29 Aug from Delhi to Ontario, returning Sat, 19 Dec, priced at £2,017 found 2 days ago
Finnair
Sat, 29 Aug - Sat, 19 Dec
DEL
Delhi
ONT
Ontario
£2,239 Return, found 2 days ago
£2,239
Return
found 2 days ago
Select Finnair flight, departing Sat, 29 Aug from Delhi to Ontario, returning Sat, 19 Dec, priced at £2,239 found 2 days ago

Frequently asked questions

How do I find cheap flights from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
To find a cheap flight from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
There are approximately 20 connecting flights per day from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.). Some common connection points include Heathrow (LHR), Pearson Intl. (YYZ), and Hamad Intl. (DOH).
What is the earliest flight from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The earliest flight from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) typically departs at approximately 12:20 AM local time. This service is operated by Thai Airways and China Airlines and is seasonal, active only in November. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
You'll typically find the most flights from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) on a Thursday, with around 24 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Air India, British Airways, and Air France. Flight schedules are consistent throughout the week.
What are the most popular departure times for flights from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The most popular departure times for flights from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) are in the early morning, from midnight to 3am. Approximately 39% of passengers prefer this time window. Many major carriers, including Virgin Atlantic, Delta and Air France, offer flights during this window. These times work well because you can maximise your time in Delhi before your flight, and you'll arrive in Ontario, CA in the afternoon.
How long does it take to fly from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
A flight from DEL to ONT with a layover takes around 20 hours 50 minutes, with the route covering approximately 8,006 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Select the "Business class" and "First class" filters when looking for DEL to ONT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight with Expedia?
It's easy to earn miles on a Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ontario from Indira Gandhi Intl. (DEL)?
From Indira Gandhi Intl. (DEL), you can fly directly into Los Angeles - Ontario Intl. (ONT) to reach Ontario. Some flights may connect through major hubs like Heathrow (LHR), Hamad Intl. (DOH), Liberty Intl. (EWR) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) at the last minute?
Typically, booking a last minute flight from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package?
Securing a Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you booked your Delhi (DEL-Indira Gandhi Intl.) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Indira Gandhi Intl.
Destination airport
Ontario Intl. Airport
Return price
£2,017
Distance
12807 km

Book with confidence

Compare flights from Delhi to Ontario Intl. Airport easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Delhi to Ontario Intl. Airport. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Ontario Intl. Airport in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Indira Gandhi Intl. to Ontario Intl. Airport.  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Indira Gandhi Intl. (DEL) to Ontario Intl. Airport (ONT)

The easiest way to view the best deals on flights from Delhi to Ontario Intl. Airport today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Indira Gandhi Intl. to Ontario Intl. Airport start at just £2,017 and range up to £2,239.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Delhi and Ontario Intl. Airport
  • booking your flight during August, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Delhi to Ontario Intl. Airport flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Indira Gandhi Intl. to Ontario Intl. Airport for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Delhi to Ontario Intl. Airport easily and book with confidence

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