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$39+ Cheap flights from Arizona to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Arizona to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Arizona (USAZ) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$43
(Frontier)

One-way from

$41
(Cheapflightsfares)

Good round-trip deal

$245 or less

Good one-way deal

$84 or less
From Arizona to Ontario
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One-way flight from Arizona to Ontario
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Price to beat on a round-trip flight from Arizona to Ontario.
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Price to beat on a one-way flight from Arizona to Ontario.
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Find flight deals from Arizona to Ontario

Cheapest flights from Arizona to Ontario
Explore the most affordable flight options available from Arizona to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/3110:25 amLAS - ONT
Nonstop1h 07mFrontier
Sun 2/21:50 pmONT - LAS
Nonstop1h 14mFrontier
Deal found 1/19$47
This Cheapflightsfares deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/47:20 pmPHX - ONT
1 stop5h 27mFrontier
Thu 2/67:56 amONT - PHX
1 stop3h 30mFrontier
Deal found 1/21$107
This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1111:21 amPHX - ONT
Nonstop1h 37mAmerican Airlines
Thu 2/207:30 pmONT - PHX
Nonstop1h 16mAmerican Airlines
Deal found 1/20$137
This Southwest deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/206:40 amPHX - ONT
1 stop5h 20mSouthwest
Thu 2/279:45 pmONT - PHX
Nonstop1h 20mSouthwest
Deal found 1/21$147
This Frontier deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/1711:59 amTUS - ONT
1 stop12h 10mFrontier
Sun 3/2312:59 amONT - TUS
1 stop10h 00mFrontier
Deal found 1/20$150
This Travelocity deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/87:28 pmPHX - ONT
1 stop5h 19mMultiple Airlines
Mon 2/107:00 amONT - PHX
2 stops15h 59mMultiple Airlines
Deal found 1/20$202
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2211:27 amLAS - ONT
1 stop4h 10mAmerican Airlines
Tue 2/256:13 amONT - LAS
1 stop5h 24mAmerican Airlines
Deal found 1/21$231
This Expedia deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/276:20 amLAS - ONT
Nonstop1h 03mMultiple Airlines
Sat 8/24:05 pmONT - LAS
1 stop6h 15mMultiple Airlines
Deal found 1/21$271
This Southwest deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/171:40 pmTUS - ONT
1 stop6h 45mSouthwest
Tue 4/2210:45 amONT - TUS
1 stop3h 05mSouthwest
Deal found 1/21$272
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/412:05 pmTUS - ONT
1 stop5h 23mDelta
Wed 2/55:10 pmONT - TUS
1 stop4h 35mDelta
Deal found 1/20$277
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/159:00 amPHX - ONT
1 stop15h 58mAlaska Airlines
Tue 2/186:00 amONT - PHX
1 stop16h 59mAlaska Airlines
Deal found 1/20$303
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/277:44 amTUS - ONT
1 stop16h 40mAlaska Airlines
Mon 3/37:14 pmONT - TUS
1 stop19h 15mAlaska Airlines
Deal found 1/20$332

Find flights from Arizona to Ontario within your budget

Customize your flight search to find flights from Arizona to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Thu 1/30

4:47 pm-5:55 pm

Nonstop1h 08m

Ontario

Sun 2/2

1:50 pm-3:04 pm

Nonstop1h 14m

$43

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/4

7:20 pm-11:47 pm

1 stop5h 27m

Ontario

Thu 2/6

7:56 am-12:26 pm

1 stop3h 30m

$107

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 2/11

11:21 am-11:58 am

Nonstop1h 37m

Ontario

Thu 2/20

7:30 pm-9:46 pm

Nonstop1h 16m

$137

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 2/20

6:40 am-11:00 am

1 stop5h 20m

Ontario

Thu 2/27

9:45 pm-12:05 am

Nonstop1h 20m

$147

TucsonOntario

TUS - ONT

TUSONT

Tucson

Mon 3/17

11:59 am-12:09 am

1 stop12h 10m

Ontario

Sun 3/23

12:59 am-10:59 am

1 stop10h 00m

$150

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 2/8

7:28 pm-11:47 pm

1 stop5h 19m

Ontario

Mon 2/10

7:00 am-11:59 pm

2 stops15h 59m

$202

Las VegasOntario

LAS - ONT

LASONT

Las Vegas Harry Reid Intl

Sat 2/22

11:27 am-3:37 pm

1 stop4h 10m

Ontario

Tue 2/25

6:13 am-11:37 am

1 stop5h 24m

$231

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 4/17

1:40 pm-8:25 pm

1 stop6h 45m

Ontario

Tue 4/22

10:45 am-1:50 pm

1 stop3h 05m

$272

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 2/13

4:07 pm-6:26 pm

1 stop3h 19m

Ontario

Mon 2/17

10:05 am-2:15 pm

1 stop3h 10m

$277

TucsonOntario

TUS - ONT

TUSONT

Tucson

Thu 2/13

6:45 am-12:24 pm

1 stop6h 39m

Ontario

Mon 2/17

6:00 am-11:25 am

1 stop4h 25m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 34 results
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Best time to book a flight from Arizona to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Arizona with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Arizona to Ontario

Get recent, data-driven insights about flights from Arizona to Ontario including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Arizona to Ontario?

Currently, August is the cheapest month in which you can book a flight from Arizona to Ontario (average of $246). Flying from Arizona to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

Find hourly flight availability from Arizona to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Arizona to Ontario as you normally would.

Weekly flight availability from Arizona to Ontario

Explore weekly flight availability from Arizona to Ontario. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.

The most flights from USAZ to ONT are scheduled on a Monday (13 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

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.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated January 21, 2025.
Get a feel of what it's like to fly with American Airlines, Southwest and United Airlines from Arizona to Ontario by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Crew

8.7

Overall

8.1

Reviews

1 / 10

No issues. I needed pre boarding and I was able to get it without issue

Related info for your journey

Find useful and relevant information for your journey from Arizona to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    If you book a flight to Ontario from Arizona, 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.

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

    The cheapest airlines for a one-way flight from Arizona to Ontario are Frontier ($41), American Airlines ($69), and Southwest ($69).

  • What are the most popular routes from Arizona to Ontario?

    The most popular flight routes from Arizona to Ontario are Phoenix Sky Harbor Intl - Ontario, Las Vegas Harry Reid Intl - Ontario and Tucson - Ontario.

  • What are the most reliable airlines from Arizona to Ontario?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Arizona to Ontario on time: SkyWest Airlines (100%), Envoy Air (96%), American Airlines (89%).

  • What are the cheapest flights from Arizona to Ontario?

    Looking at all options, your cheapest flight can be booked for $70. While the most popular route (Phoenix Sky Harbor Intl - Ontario) can be booked for $109 on average our data indicates $212 when flying from Arizona to Ontario.

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

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

  • How can I find direct flights from Arizona to Ontario?

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

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

    Yes. Cheapflights offers flight deals from Arizona 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.

  • What is the cheapest month to book a flight from Arizona to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Arizona to Ontario (average of $246). Flying from Arizona to Ontario in March is currently the most expensive (average of $310). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Arizona to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Arizona to Ontario

Discover the top 3 airlines that operate flights from Arizona to Ontario. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$90FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$115Average$313FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$138Average$273FlexibilityNo cancel feeOn-time63%
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