The cheapest times to fly from ONT to DEL are

  • January 8th to February 18th
  • July 30th to December 9th

based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ONT to DEL is mid to late September. Prices can be as high as $1856 for Friday flights during late May, or as low as $826 for Tuesday flights around mid to late September.


When to Fly to New Delhi

Flying from Ontario, CA (ONT) to Delhi (DEL) will usually cost between $835 to $1807 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $853. Due to high demand the most expensive time to fly is late May, with an average price of $1804. Planning your trip to low-cost times can easily save you $951 on economy flights and even more on first-class flights. Generally, any price below $1207 can be considered a good price for a round-trip ONT to DEL flight.

See below for a graph of average weekly prices for the ONT to DEL route. All prices are for round-trip tickets in USD.

ONT to DEL Flight Prices

Compared to other flights, the ONT to DEL flight is slightly more expensive than the average and costs less than the average flight leaving from Ontario. The average price per mile (for a direct flight) is $0.09, which is far below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to fly to DEL, and Wednesday the cheapest day to fly back into ONT. Fridays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $91 (7%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1178. Return trip prices are from the DEL to ONT flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from ONT to DEL can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 15 hour 23 minutes may not be realistic.


Flight Hacking ONT to DEL

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from ONT to DEL — but Champion Traveler does!

Hack #1: Bangkok (ONT > BKK > DEL)

  • Price for both tickets: $982
  • Average savings: $225 (18.61%)

See ONT to BKK flights

Hack #2: San Francisco, CA (ONT > SFO > DEL)

  • Price for both tickets: $1031
  • Average savings: $176 (14.55%)

See ONT to SFO flights

Hack #3: Ho Chi Minh City (ONT > SGN > DEL)

  • Price for both tickets: $1106
  • Average savings: $101 (8.37%)

See ONT to SGN flights


Flight Questions Answered

Still have questions about flying from ONT to DEL? We’ve got answers.

Which airlines fly this route?

You can find 25 major airlines flying this route most often: Air Canada, Air France, Air India, Alaska, American, ANA, Asiana, Austrian, British Airways, Brussels Airlines, Cathay Dragon, Cathay Pacific, China Airlines, China Southern, Delta, Emirates, JAL, KLM, Lufthansa, Qatar Airways, Singapore Airlines, SWISS, Turkish Airlines, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from Indira Gandhi International Airport to Ontario International Airport?

The distance between the two airports is roughly 8003 miles or 12880 kilometers.

How long does it take to fly from ONT to DEL?

The real-world flight time for a nonstop ONT to DEL flight is about 15 hour 23 minutes.

How many flights go between Ontario, CA and Delhi?

It depends on the day of the week and the date, but a typical day might have around 62 available flights from ONT to DEL.


Airport Location Info


Departing Airport

Origination code ONT
Origination airport name Ontario International Airport
City Ontario, CA
Country the United States
Latitude 34.1
Longitude -117.6

Return Airport

Destination code DEL
Destination airport name Indira Gandhi International Airport
City Delhi
Country India
Latitude 28.6
Longitude 77.1


Other Resources

Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.