What are the cheapest airlines to fly from Tempe to Ontario one-way?

$58 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $58 and $58, respectively.

Weekly flight availability from Tempe to Ontario

The most flights from TM9 to ONT are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

What are the cheapest flights from Tempe to Ontario?

On average you can expect to pay $278 for a flight from Tempe to Ontario. The cheapest flight overall is $58 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $117.

What are the most reliable airlines from Tempe to Ontario?

The top 3 most reliable airlines when flying from Tempe to Ontario are American Airlines (75%), Southwest (74%) and British Airways (73%).

What are the most popular airlines that fly from Tempe to Ontario?

Southwest, American Airlines and Frontier are the most popular airlines when flying from Tempe to Ontario.

What airport do you fly into for flights to Ontario from Tempe?

If you book a flight to Ontario from Tempe, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 5 flights from Tempe to Ontario per day from 4 different airlines.

Can I find deals for flights from Tempe to Ontario that include hotel bookings?

Yes. In addition to deals on Tempe to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Tempe to Ontario?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tempe to Ontario.

Can I find deals for business class flights from Tempe to Ontario?

Yes. Cheapflights offers flight deals from Tempe to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Find Cheap Flights from Tempe to Ontario

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Cheapflights Tip: The best prices from Tempe to Ontario are usually found in February or April, booked 37 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Find flight deals from Tempe to Ontario

Popular in	June
Cheapest in	February
Average price	$265

Highest demand for flights based on searches. 9% potential increase in price ($28 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

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Average for round-trip flights in September 2026

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Everything you need to know about your flight from Tempe to Ontario

Prices

Airlines

What is the cheapest time of day to fly from TM9 to ONT?

One of the essential ways to save on airfare from Tempe to Ontario is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

What is the cheapest day to fly from Tempe to Ontario?

Travelers seeking maximum savings on their Tempe to Ontario flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from Tempe to Ontario, such as Southwest,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,198 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Southwest

8.0

Very good

4,198 reviews

Southwest

8.0

Very good

4,198 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

JetBlue

7.1

Good

3,038 reviews

Southwest

8.0

Very good

4,198 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

American Airlines

7.0

Good

12,076 reviews

Southwest

8.0

Very good

4,198 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Frontier

5.6

Fair

2,579 reviews

Southwest

8.0

Very good

4,198 reviews

Reviews

1 / 20

10.0

Excellent

Walter,May 2026

LAS - BUR

Short but excellent flight. Everyone was friendly and professional it was a great flight!

Related info for your journey

What airport do you fly into for flights to Ontario from Tempe?
If you book a flight to Ontario from Tempe, you will be flying to Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 5 flights from Tempe to Ontario per day from 4 different airlines.
What are the cheapest airlines to fly from Tempe to Ontario one-way?
$58 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Southwest, with prices starting from $58 and $58, respectively.
What are the most reliable airlines from Tempe to Ontario?
The top 3 most reliable airlines when flying from Tempe to Ontario are American Airlines (75%), Southwest (74%) and British Airways (73%).
What are the cheapest flights from Tempe to Ontario?
On average you can expect to pay $278 for a flight from Tempe to Ontario. The cheapest flight overall is $58 while the most popular route, (Phoenix Sky Harbor Intl - Ontario) is currently priced at $117.
Can I find deals for flights from Tempe to Ontario that include hotel bookings?
Yes. In addition to deals on Tempe to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Tempe to Ontario?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Tempe to Ontario.
Can I find deals for business class flights from Tempe to Ontario?
Yes. Cheapflights offers flight deals from Tempe to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Top 4 airlines flying from Tempe to Ontario

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$99	Average$182	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$117	Average$266	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$134	Average$307	FlexibilityNo cancel fee	On-time71%
JetBlue	Cheapest$192	Average$452	FlexibilityNo cancel fee	On-time62%

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Cheap flights from Tempe, AZ to Ontario (ONT)

Find cheap flights from Tempe to Ontario with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Tempe to Ontario

Popular in

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Average price

Cheapflights Insights

What is the cheapest time of day to fly from TM9 to ONT?

One of the essential ways to save on airfare from Tempe to Ontario is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 30% on airfare.

What is the cheapest day to fly from Tempe to Ontario?

Travelers seeking maximum savings on their Tempe to Ontario flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Tempe to Ontario

The most flights from TM9 to ONT are scheduled on a Monday (8 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Reviews of airlines servicing Ontario

Read through reviews of airlines operating flights from Tempe to Ontario, such as Southwest,JetBlue, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What airport do you fly into for flights to Ontario from Tempe?

What are the cheapest airlines to fly from Tempe to Ontario one-way?

What are the most reliable airlines from Tempe to Ontario?

What are the cheapest flights from Tempe to Ontario?

Can I find deals for flights from Tempe to Ontario that include hotel bookings?

How can I find direct flights from Tempe to Ontario?

Can I find deals for business class flights from Tempe 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.

Alternative routes for Tempe to Ontario

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Complete your trip

Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Tempe to Ontario by cabin class

Find flights from Tempe to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Ontario

Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 23, 2026.

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Top 4 airlines flying from Tempe to Ontario

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