Does Delta fly into any other airports in or near Ontario?

Yes. If you're traveling to Ontario, Delta flies into Santa Ana John Wayne, Long Beach Municipal, Burbank and Los Angeles International.

Which other airlines can I fly to Ontario International with?

At the moment, Southwest Airlines, American Airlines, Alaska Airlines, SkyWest Airlines and United all fly to Ontario International too.

What’s the cheapest month to fly to Ontario International with Delta?

Although it's difficult to get an accurate idea of when Delta flights to Ontario International are cheapest, the cheapest plane tickets are currently for departures in July .

$78 Delta Flights to Ontario International

The best Delta flight deals to Ontario International

Looking for a last-minute deal or the best direct flight? Find the biggest savings on one-way and round-trip flights to Ontario International with Delta right here.

Ontario.$78 per passenger.Departing Wed, Aug 21.One-way flight with Delta.Outbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Aug 21, arriving in Ontario International.Price includes taxes and charges.From $78, select.

Ontario.$78 per passenger.Departing Wed, Jul 24.One-way flight with Delta.Outbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Jul 24, arriving in Ontario International.Price includes taxes and charges.From $78, select.

Ontario.$98 per passenger.Departing Tue, Jun 11.One-way flight with Delta.Outbound direct flight with Delta departing from Seattle / Tacoma International on Tue, Jun 11, arriving in Ontario International.Price includes taxes and charges.From $98, select.

Ontario.$98 per passenger.Departing Sat, Oct 12.One-way flight with Delta.Outbound direct flight with Delta departing from Seattle / Tacoma International on Sat, Oct 12, arriving in Ontario International.Price includes taxes and charges.From $98, select.

Ontario.$98 per passenger.Departing Sat, Oct 5.One-way flight with Delta.Outbound indirect flight with Delta, departing from Sacramento International on Sat, Oct 5, arriving in Ontario International.Price includes taxes and charges.From $98, select.

Ontario.$98 per passenger.Departing Wed, Sep 25.One-way flight with Delta.Outbound direct flight with Delta departing from Seattle / Tacoma International on Wed, Sep 25, arriving in Ontario International.Price includes taxes and charges.From $98, select.

Ontario.$98 per passenger.Departing Tue, Jun 25.One-way flight with Delta.Outbound indirect flight with Delta, departing from Portland on Tue, Jun 25, arriving in Ontario International.Price includes taxes and charges.From $98, select.

Ontario.$123 per passenger.Departing Tue, Mar 4.One-way flight with Delta.Outbound direct flight with Delta departing from Salt Lake City on Tue, Mar 4, arriving in Ontario International.Price includes taxes and charges.From $123, select.

Find the cheapest time to fly to Ontario International with Delta

Flexible on travel dates? Here's when plane tickets are cheapest.

May

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Alternative routes to Ontario

We found flights to 6 other airports near Ontario International. Find the one that works for you.

Flying to Ontario International with Delta

The things to know before you go.

Cheapest flight found	$78
Cheapest month to fly	July
Nearby cities to visit	Ontario
Time difference between Washington, D.C. and Ontario International	3 hrs (GMT -7)

How to find cheap flights to Ontario International with Delta

Looking for cheap plane tickets to Ontario International? Here are a few tips on how to find the best price.

Simply hit "search"

We've compared every online travel agent and flight provider to find the cheapest Delta plane tickets to anywhere in the world, including Ontario International.

Fly from Seattle / Tacoma International

At the moment, the best route to Ontario International with Delta is from Seattle / Tacoma International.

Flex your dates for the best rates

If you’re flexible on your departure dates, hit Whole month as you search. You'll see the cheapest month, and even day, to fly to Ontario International with Delta.

Set up a Price Alert

Got your eye on a specific flight to Ontario International but not quite ready to book? No worries. We'll let you know when the price of the flight goes up or down so you can book when the time is just right. You're even able to watch specific Delta flights.

Book your Delta flight to Ontario International Airport with extra peace of mind

Find flexible Delta flights to Ontario International Airport

Delta might offer amendable tickets to Ontario International Airport, which means you won't lose out if your booking has to be changed or canceled.

Add travel cost protection

Make sure you have the right travel insurance before flying to Ontario International Airport. That way you can cover the costs of any unexpected events, such as delays or lost luggage.

Reduce your carbon footprint

To check whether there are any lower-emissions flights available on your route, simply check the “only show flights with lower CO₂ emissions” box when you search for a flight with us.

Flying to Ontario International with Delta: FAQs

: Yes. If you're traveling to Ontario, Delta flies into Santa Ana John Wayne, Long Beach Municipal, Burbank and Los Angeles International.
: At the moment, Southwest Airlines, American Airlines, Alaska Airlines, SkyWest Airlines and United all fly to Ontario International too.
: Although it's difficult to get an accurate idea of when Delta flights to Ontario International are cheapest, the cheapest plane tickets are currently for departures in July.