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Ontario

$49+ Cheap flights from Mesa, AZ 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 12/17. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — ONT
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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The best prices from Mesa to Ontario are usually found in June or July, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Tuesday

Cheap flight deals from Mesa to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Mesa (MS9) 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 November 21, 2024.

Popular in

January

Cheapest in

June

Round-trip from

$106
(Cheapflightsfares)

One-way from

$49
(Southwest)
High demand for flights, 27% potential price rise
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Best time to find cheap flights, 41% potential price drop
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From Mesa to Ontario
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One-way flight from Mesa to Ontario
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Find flight deals from Mesa to Ontario

Cheapest flights from Mesa to Ontario
Explore the most affordable flight options available from Mesa to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Frontier deal was found by Cheapflights users on 11/20. 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.
Wed 12/119:23 amPHX - ONT
1 stop3h 21mFrontier
Thu 12/126:45 amONT - PHX
1 stop8h 32mFrontier
Deal found 11/20$108
This Southwest deal was found by Cheapflights users on 11/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:05 amPHX - ONT
1 stop5h 30mSouthwest
Thu 12/197:15 pmONT - PHX
Nonstop1h 15mSouthwest
Deal found 11/20$142
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Thu 12/123:05 pmPHX - ONT
Nonstop1h 20mAmerican Airlines
Mon 12/169:53 amONT - PHX
Nonstop1h 16mAmerican Airlines
Deal found 11/21$167
This Alaska Airlines deal was found by Cheapflights users on 11/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/126:00 amPHX - ONT
1 stop18h 59mAlaska Airlines
Mon 12/167:00 amONT - PHX
2 stops10h 47mAlaska Airlines
Deal found 11/21$317
This Travelocity deal was found by Cheapflights users on 11/20. 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.
Mon 12/911:56 amPHX - ONT
2 stops7h 53mMultiple Airlines
Fri 12/1310:39 amONT - PHX
1 stop6h 38mMultiple Airlines
Deal found 11/20$320
This United Airlines deal was found by Cheapflights users on 11/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:00 amPHX - ONT
2 stops17h 58mUnited Airlines
Sun 12/153:20 pmONT - PHX
2 stops21h 06mUnited Airlines
Deal found 11/20$505

Find flights from Mesa to Ontario within your budget

Customize your flight search to find flights from Mesa 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 2,629,791 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 1/28

7:20 pm-11:47 pm

1 stop5h 27m

Ontario

Thu 1/30

7:56 am-12:26 pm

1 stop3h 30m

$106

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 1/1

8:52 am-9:12 am

Nonstop1h 20m

Ontario

Wed 1/8

12:48 pm-3:06 pm

Nonstop1h 18m

$117

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 12/12

7:05 am-11:35 am

1 stop5h 30m

Ontario

Thu 12/19

7:15 pm-9:30 pm

Nonstop1h 15m

$142

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 2/22

6:13 am-4:59 pm

2 stops11h 46m

Ontario

Sun 2/23

12:59 am-8:30 am

1 stop6h 31m

$243

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 12/12

6:00 am-11:59 pm

1 stop18h 59m

Ontario

Mon 12/16

7:00 am-6:47 pm

2 stops10h 47m

$317

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Thu 12/12

7:00 am-11:58 pm

2 stops17h 58m

Ontario

Sun 12/15

3:20 pm-1:26 pm

2 stops21h 06m

$505

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Tue 12/17

8:25 pm-8:45 pm

Nonstop1h 20m

$49

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 1/22

6:06 pm-6:24 pm

Nonstop1h 18m

$50

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Wed 1/8

9:23 am-11:44 am

1 stop3h 21m

$53

PhoenixOntario

PHX - ONT

PHXONT

Phoenix Sky Harbor Intl

Sat 1/18

11:31 am-5:04 pm

1 stop6h 33m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 12 results
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Best time to book a flight from Mesa to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Mesa 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 Mesa to Ontario

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

How far ahead should I book a flight from Mesa to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Mesa to Ontario. Price data was last updated on November 15, 2024.

The best time to book flights from Mesa to Ontario is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Mesa to Ontario (average of $236). Flying from Mesa to Ontario in December is currently the most expensive (average of $298). 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 MS9 to ONT?

Find hourly flight availability from Mesa 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 November 21, 2024.

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

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

Use this chart to determine the cheapest time to fly round-trip from Mesa to Ontario. Price data was last updated on November 18, 2024.

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

Weekly flight availability from Mesa to Ontario

Explore weekly flight availability from Mesa 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 November 21, 2024.

The most flights from MS9 to ONT are scheduled on a Thursday (11 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 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 November 21, 2024.
To help decide which airline to fly from Mesa to Ontario, see what other customers have to say about Frontier, American Airlines and Southwest. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Southwest
8.1
Very good
5,015 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Alaska Airlines
8.0
Very good
9,458 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

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
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

Reviews

1 / 10

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

Volaris
6.7
Okay
1,287 reviews
Southwest
8.1
Very good
5,015 reviews

Entertainment

7.7

Comfort

8.1

Crew

8.7

Overall

8.1

Boarding

8.2

Food

7.2

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 Mesa 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 Mesa?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Mesa. On average, Ontario has 7 inbound flights from Mesa per day from 3 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $49. American Airlines flights start at $50 while deals on Frontier start at $53 one-way.

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

    Consider Envoy Air (90%), American Airlines (88%) or SkyWest Airlines (87%) when booking your flight. These represent the most reliable airlines when flying from Mesa to Ontario.

  • What are the cheapest flights from Mesa to Ontario?

    The cheapest flight price from Mesa to Ontario is $59. On average you can expect to pay $262. The most popular route, (Phoenix Sky Harbor Intl - Ontario), can usually be booked for $98.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Mesa 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 Mesa to Ontario?

    Currently, September is the cheapest month in which you can book a flight from Mesa to Ontario (average of $236). Flying from Mesa to Ontario in December is currently the most expensive (average of $298). 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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Top 3 airlines flying from Mesa to Ontario

Discover the top 3 airlines that operate flights from Mesa 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 2,629,791 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$93FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$117Average$270FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$118Average$231FlexibilityNo cancel feeOn-time63%
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