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Gilbert

$55+ Cheap flights from Ontario (ONT) to Gilbert, AZ

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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Gilbert are usually found in September or August, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Sunday

Find flight deals from Ontario to Gilbert

Cheapest flights from Ontario to Gilbert
Explore the most affordable flight options available from Ontario to Gilbert. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:45 amONT - PHX
1 stop7h 16mFrontier
Thu 11/207:00 amPHX - ONT
1 stop5h 11mFrontier
Deal found 10/28$109
This Frontier deal was found by Cheapflights users on 10/29. 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 11/128:45 amONT - PHX
1 stop12h 13mFrontier
Sat 11/1511:38 amPHX - ONT
1 stop10h 04mFrontier
Deal found 10/29$110
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:15 amONT - PHX
1 stop11h 16mFrontier
Sat 12/69:16 amPHX - ONT
1 stop6h 09mFrontier
Deal found 10/28$115
This Expedia deal was found by Cheapflights users on 10/30. 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.
Thu 12/46:15 amONT - PHX
1 stop11h 16mFrontier
Mon 12/89:16 amPHX - ONT
1 stop6h 09mFrontier
Deal found 10/30$116
This Mytrip deal was found by Cheapflights users on 10/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:15 amONT - PHX
1 stop11h 16mFrontier
Sat 12/139:58 amPHX - ONT
1 stop12h 19mFrontier
Deal found 10/29$119
This Booking.com deal was found by Cheapflights users on 10/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/96:15 amONT - PHX
1 stop11h 16mFrontier
Wed 12/107:43 pmPHX - ONT
1 stop19h 21mFrontier
Deal found 10/28$121
This CheapOair deal was found by Cheapflights users on 10/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:18 pmONT - PHX
1 stop24h 13mFrontier
Wed 12/107:43 pmPHX - ONT
1 stop19h 21mFrontier
Deal found 10/30$122
This Frontier deal was found by Cheapflights users on 10/30. 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.
Thu 12/42:59 pmONT - PHX
1 stop16h 49mFrontier
Sun 12/79:16 amPHX - ONT
1 stop6h 50mFrontier
Deal found 10/30$124
This Frontier deal was found by Cheapflights users on 10/30. 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.
Fri 11/141:46 pmONT - PHX
1 stop8h 17mFrontier
Mon 11/179:17 amPHX - ONT
1 stop4h 34mFrontier
Deal found 10/30$127
This Frontier deal was found by Cheapflights users on 10/29. 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.
Thu 11/1310:05 amONT - PHX
1 stop9h 46mFrontier
Mon 11/179:17 amPHX - ONT
1 stop4h 34mFrontier
Deal found 10/29$130

Cheap flight deals from Ontario to Gilbert

Keep the following information in mind while searching for Ontario to Gilbert flight deals. Data was last updated October 30, 2025.

Round-trip from

$109
(Kiwi.com)

One-way from

$55
(Frontier)

Popular in

July

Cheapest in

September

Average price

$268
From Ontario to Gilbert
Search Deals
One-way flight from Ontario to Gilbert
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Gilbert 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 October 30, 2025.
Use the filters below to find and compare flights from Ontario to Gilbert that are best for you.

Fly from

Ontario

Fly to

Gilbert

Route

Depart

Return

Price

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 12/3

6:15 am-6:31 pm

1 stop11h 16m

Phoenix Sky Harbor Intl

Sat 12/6

9:16 am-2:25 pm

1 stop6h 09m

$115

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 11/6

10:05 am-8:51 pm

1 stop9h 46m

Phoenix Sky Harbor Intl

Sat 11/8

8:00 am-12:37 pm

1 stop5h 37m

$190

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 12/13

6:15 am-1:47 pm

1 stop6h 32m

Phoenix Sky Harbor Intl

Sat 1/17

5:16 pm-10:50 pm

1 stop6h 34m

$210

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 12/17

6:15 am-8:48 am

1 stop25h 33m

Phoenix Sky Harbor Intl

Sun 1/11

5:44 pm-9:17 pm

1 stop4h 33m

$218

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 12/6

9:59 am-12:16 pm

Nonstop1h 17m

Phoenix Sky Harbor Intl

Mon 12/8

6:03 pm-6:19 pm

Nonstop1h 16m

$231

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 12/9

8:40 am-12:40 pm

1 stop3h 00m

Phoenix Sky Harbor Intl

Wed 12/10

8:45 pm-8:55 pm

Nonstop1h 10m

$237

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 12/6

12:20 pm-5:05 pm

1 stop3h 45m

Phoenix Sky Harbor Intl

Mon 12/8

9:00 am-9:15 am

Nonstop1h 15m

$241

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 11/27

5:40 am-1:10 pm

1 stop6h 30m

Phoenix Sky Harbor Intl

Thu 11/27

2:10 pm-2:25 pm

Nonstop1h 15m

$241

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 1/22

6:30 am-5:49 pm

1 stop10h 19m

Phoenix Sky Harbor Intl

Mon 1/26

9:23 am-5:02 pm

1 stop8h 39m

$250

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 12/3

7:55 am-3:00 pm

2 stops6h 05m

Phoenix Sky Harbor Intl

Thu 12/4

12:40 pm-4:50 pm

2 stops5h 10m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 22 results
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Best time to book a flight from Ontario to Gilbert

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

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Ontario to Gilbert. Price data was last updated on October 24, 2025.

The best time to book flights from Ontario to Gilbert is 71 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 Ontario to Gilbert?

Currently, November is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $21). Flying from Ontario to Gilbert in July is currently the most expensive (average of $82). 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 ONT to G1L?

Find hourly flight availability from Ontario to Gilbert. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

One of the essential ways to save on airfare from Ontario to Gilbert is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 42% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Ontario to Gilbert. Price data was last updated on December 16, 2024.

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

Reviews of airlines servicing Gilbert

Get insights into the airlines that provide service to Gilbert. 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 Gilbert. Reviews last updated October 30, 2025.
Read reviews from past customers who have flown Southwest, American Airlines, and Frontier from Ontario to Gilbert. 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
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
11,030 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Gilbert. 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 from for flights from Ontario to Gilbert?

    If you book a flight to Gilbert from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 3 flights from Ontario to Gilbert per day from 3 different airlines.

  • How long is the flight from Ontario to Gilbert?

    Departing from Ontario to Gilbert will take you 1h 17m. There are 324 mi between Ontario and Gilbert. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $55. However, be on the lookout for offers from Southwest and American Airlines, as they are both options that can get you from Ontario to Gilbert for a low price.

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

    Before booking your flight to Gilbert from Ontario, check out the most reliable airlines to get you to your destination on time: American Airlines (83%), SkyWest Airlines (81%), Southwest( 75%).

  • What are the cheapest flights from Ontario to Gilbert?

    Looking for the cheapest flight from Ontario to Gilbert? While on average our users pay $801, our data indicates the cheapest price to be $115. The most popular route (Ontario - Phoenix Sky Harbor Intl), is priced around $110.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $21). Flying from Ontario to Gilbert in July is currently the most expensive (average of $82). 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.

See more FAQs

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Top 3 airlines flying from Ontario to Gilbert

Discover the top 3 airlines that operate flights from Ontario to Gilbert. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$169FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$327FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$123Average$337FlexibilityNo cancel feeOn-time71%

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