Which other airlines fly to Ontario?

Along with Delta, you can also fly to Ontario with American Airlines, JetBlue, Frontier, Hawaiian Airlines, JetBlue, Frontier and Hawaiian Airlines.

How much is a flight to Ontario with Delta?

On average, Delta flights to Ontario cost $598 one-way.

Which airport do Delta flights to Ontario fly into?

You’ll fly into Ontario Airport when flying to Ontario with Delta.

Are there any other airlines in SkyTeam that fly to Ontario?

Unfortunately, there are no other airlines in SkyTeam that fly to Ontario.

Delta flights to Ontario (ONT) from $79

ONT

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In the last 7 days travelers have searched 42,787,818 times on KAYAK, and here is why:

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Low season	January
High season	May
Cheapest flight	$79
Average price round-trip	$350
Good deal one-way	$216

Best time to beat the crowds with an average 10% drop in price.

Most popular time to fly and prices are also 6% lower on average.

Flight from Seattle to Ontario

(avg. price over the last 2 weeks)

or less

When to book flights with Delta to Ontario

Average price per month

Flight prices as travel date approaches

Which other airlines fly to Ontario?
Along with Delta, you can also fly to Ontario with American Airlines, JetBlue, Frontier, Hawaiian Airlines, JetBlue, Frontier and Hawaiian Airlines.
How much is a flight to Ontario with Delta?
On average, Delta flights to Ontario cost $598 one-way.
Which airport do Delta flights to Ontario fly into?
You’ll fly into Ontario Airport when flying to Ontario with Delta.
Are there any other airlines in SkyTeam that fly to Ontario?
Unfortunately, there are no other airlines in SkyTeam that fly to Ontario.

See more FAQs

The cheapest flight to Ontario with Delta found on KAYAK in the last 2 weeks departed from Atlanta and cost $359.

8.0

Very goodBased on 10,419 verified guest reviews

8.2Boarding

7.9Comfort

8.6Crew

8.0Entertainment

7.4Food

Pros +

Cons -

3.6 Poor

Anonymous, May 2017

Pros:On board crew was helpful and polite considwring our circumstances.

Cons:Our flight was delayed 3xs (non weather) they said we would miss our connection (I didn't think we would) THEY rebooked a later flight. Of course we landed in time for our original flight. They refused to let us back on our original flight. Put me in touch w/ the help desk who after talking in circles admitted it was their mistake but he had no authority to help. FINAlly & only because others missed their flight we were given the option to go. Crew misplaced our luggage and sent it on a flight we were never supposed to be on, and the bad experience with delays of hours on end continued coming home. (Mechanimal non weather) WE WILL NEVER FLY DELTA AGAIN!

8.0 Very good

Holly, Apr 2024

Super good crew... food was pretty awful- overall Delta is my favorite carrier- takes off on time, good boarding process etc.

6.0 Okay

Netty, Apr 2024

It was a crowded flight. They did the best they could.

10.0 Wonderful

Andrew, Apr 2024

Wider seats/planes

10.0 Wonderful

Anonymous, Jun 2019

Pros:We actually did not fly this route. We bought a car and drove home!

9.0 Wonderful

Anonymous, Jan 2019

Pros:Food was good and plentiful. I definitely left the flight feeling full.

2.6 Poor

Grace, Aug 2017

Cons:Got stuck for two hours sitting in the plane because the computer systems went down.

9.2 Wonderful

Michael, Feb 2020

Cons:Seats are tight

10.0 Wonderful

FSebastian, Oct 2019

Pros:The crew was amazing and seats were comfortable

Cons:Nothing

8.3 Very good

Anonymous, Sep 2018

Pros:The crew was fantastic and very carrying when I wasn’t feeling well. They checked on me multiple times! The food was also really good for airline food!

Cons:The security process in the Prague airport is so ridiculous. There are security agents who screen you in the baggage drop off line that makes the line take a very long time. Once you finally get your sticker from them it’s a quick trip through customs. Then the pain really begins with a security scan st each individual gate to enter a boarding area for the plane. Then I was pulled for extra security where a male agent touched my but with some sort of swab with no warning. He then claimed to not speak English (with zero accent when I asked him a question). It was a humiliating and very long process all run by delta!

Book Cheap flights with Delta to Ontario

Recent round-trip flight deals

7/16Tue

nonstopDelta

2h 54mSEA-ONT

7/16Tue

nonstopDelta

2h 44mONT-SEA

$157

7/9Tue

1 stopDelta

6h 45mSEA-ONT

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$167

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nonstopDelta

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$206

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1 stopDelta

6h 45mSEA-ONT

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nonstopDelta

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$207

11/16Sat

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9/6Fri

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$235

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$236

Recent one-way flight deals

7/9Tue

nonstopDelta

2h 47mSEA-ONT

$79

7/2Tue

1 stopDelta

5h 08mSEA-ONT

$88

7/16Tue

1 stopDelta

4h 53mPDX-ONT

$98

7/5Fri

1 stopDelta

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$98

8/26Mon

nonstopDelta

2h 47mSEA-ONT

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6/30Sun

1 stopDelta

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$108

7/4Thu

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$108

6/24Mon

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$108

6/22Sat

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6/25Tue

1 stopDelta

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8/8Thu

2 stopsDelta

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6/8Sat

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6/27Thu

1 stopDelta

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$128

8/21Wed

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1 stopDelta

6h 06mDEN-ONT

$128

6/18Tue

nonstopDelta

2h 43mSEA-ONT

$129

8/17Sat

1 stopDelta

8h 00mEWR-ONT

$129

Flights to Ontario - Delta

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - United States

Cabin classes:

$443

First Class flights to Ontario

$478

Business Class flights to Ontario

$193

$35

Browse origins:

Flights »
United States

Browse destinations:

Delta to Ontario

ONT

Find cheap Delta flights to Ontario from $79

Search hundreds of travel sites at once for deals on Delta flights to Ontario

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When to book flights with Delta to Ontario

FAQs for flying to Ontario with Delta

Which other airlines fly to Ontario?

How much is a flight to Ontario with Delta?

Which airport do Delta flights to Ontario fly into?

Are there any other airlines in SkyTeam that fly to Ontario?

Top tips for your flights to Ontario with Delta

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