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Gilbert

$39+ 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheapflights Tip: The best prices from Ontario to Gilbert are usually found in August or September, booked 75 days in advance, depart on a Wednesday or Friday and return on a Saturday

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 August 13, 2025.

Round-trip from

$117
(American Airlines)

One-way from

$39
(Southwest)

Popular in

July

Cheapest in

August

Average price

$198
From Ontario to Gilbert
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One-way flight from Ontario to Gilbert
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Highest demand for flights based on searches. 1% potential increase in price ($4 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 13, 2025.

This American Airlines deal was found by Cheapflights users on 8/11. 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 9/111:10 pmONT - PHX
Nonstop1h 21mAmerican Airlines
Mon 9/158:33 pmPHX - ONT
Nonstop1h 15mAmerican Airlines
Deal found 8/11$117
This American Airlines deal was found by Cheapflights users on 8/11. 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 9/41:10 pmONT - PHX
Nonstop1h 21mAmerican Airlines
Mon 9/88:33 pmPHX - ONT
Nonstop1h 15mAmerican Airlines
Deal found 8/11$118
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 9/264:45 pmONT - PHX
Nonstop1h 27mAmerican Airlines
Sat 9/278:04 amPHX - ONT
Nonstop1h 17mAmerican Airlines
Deal found 8/12$121
This Southwest deal was found by Cheapflights users on 8/12. 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.
Fri 10/105:55 pmONT - PHX
Nonstop1h 20mSouthwest
Mon 10/135:50 amPHX - ONT
1 stop4h 40mSouthwest
Deal found 8/12$124
This Southwest deal was found by Cheapflights users on 8/12. 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.
Sun 9/78:35 pmONT - PHX
Nonstop1h 20mSouthwest
Tue 9/93:35 pmPHX - ONT
2 stops6h 30mSouthwest
Deal found 8/12$129
This Southwest deal was found by Cheapflights users on 8/11. 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.
Mon 11/104:15 pmONT - PHX
1 stop5h 00mSouthwest
Fri 11/146:35 amPHX - ONT
1 stop4h 45mSouthwest
Deal found 8/11$134
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Fri 9/261:10 pmONT - PHX
Nonstop1h 21mAmerican Airlines
Sun 9/284:58 pmPHX - ONT
Nonstop1h 14mAmerican Airlines
Deal found 8/12$151
This Southwest deal was found by Cheapflights users on 8/12. 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.
Fri 9/193:30 pmONT - PHX
1 stop5h 00mSouthwest
Sun 9/218:10 amPHX - ONT
Nonstop1h 15mSouthwest
Deal found 8/12$161
This Southwest deal was found by Cheapflights users on 8/12. 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.
Sat 9/2711:05 amONT - PHX
1 stop5h 00mSouthwest
Sat 9/277:30 pmPHX - ONT
Nonstop1h 10mSouthwest
Deal found 8/12$164
This Southwest deal was found by Cheapflights users on 8/12. 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.
Tue 9/96:10 pmONT - PHX
1 stop4h 20mSouthwest
Tue 9/161:10 pmPHX - ONT
2 stops5h 20mSouthwest
Deal found 8/12$179
This Southwest deal was found by Cheapflights users on 8/11. 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.
Wed 8/273:35 pmONT - PHX
Nonstop1h 20mSouthwest
Wed 9/38:15 amPHX - ONT
Nonstop1h 15mSouthwest
Deal found 8/11$183

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 August 13, 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

Thu 9/11

1:10 pm-2:31 pm

Nonstop1h 21m

Phoenix Sky Harbor Intl

Mon 9/15

8:33 pm-9:48 pm

Nonstop1h 15m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 9/16

1:10 pm-2:31 pm

Nonstop1h 21m

Phoenix Sky Harbor Intl

Tue 9/23

4:58 pm-6:16 pm

Nonstop1h 18m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 9/18

1:10 pm-2:31 pm

Nonstop1h 21m

Phoenix Sky Harbor Intl

Mon 9/22

2:43 pm-4:05 pm

Nonstop1h 22m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 9/15

4:45 pm-6:12 pm

Nonstop1h 27m

Phoenix Sky Harbor Intl

Wed 9/17

2:43 pm-4:05 pm

Nonstop1h 22m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 9/13

6:10 am-7:27 am

Nonstop1h 17m

Phoenix Sky Harbor Intl

Tue 9/16

4:58 pm-6:16 pm

Nonstop1h 18m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 10/22

1:00 pm-2:19 pm

Nonstop1h 19m

Phoenix Sky Harbor Intl

Thu 10/23

8:03 am-9:19 am

Nonstop1h 16m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Wed 10/8

6:15 am-7:33 am

Nonstop1h 18m

Phoenix Sky Harbor Intl

Mon 10/13

8:03 am-9:19 am

Nonstop1h 16m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 10/4

1:10 pm-2:31 pm

Nonstop1h 21m

Phoenix Sky Harbor Intl

Tue 10/7

2:10 pm-3:24 pm

Nonstop1h 14m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 9/20

10:20 am-11:38 am

Nonstop1h 18m

Phoenix Sky Harbor Intl

Sat 9/20

4:58 pm-6:16 pm

Nonstop1h 18m

$117

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 9/20

6:10 am-7:27 am

Nonstop1h 17m

Phoenix Sky Harbor Intl

Sat 9/27

8:04 am-9:21 am

Nonstop1h 17m

$117

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 19 results
1
2

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 August 8, 2025.

The best time to book flights from Ontario to Gilbert is 75 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, January is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $258). Flying from Ontario to Gilbert in March is currently the most expensive (average of $337). 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 August 13, 2025.

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

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 Saturday at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Ontario to Gilbert

Explore weekly flight availability from Ontario to Gilbert. 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 August 13, 2025.

The most flights from ONT to G1L are scheduled on a Monday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

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 August 13, 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
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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
3,221 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.5

Boarding

8.1

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 8 flights from Ontario to Gilbert per day from 3 different airlines.

  • 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: SkyWest Airlines (90%), British Airways (90%), Southwest( 74%).

  • What are the cheapest flights from Ontario to Gilbert?

    Looking for the cheapest flight from Ontario to Gilbert? While on average our users pay $613, our data indicates the cheapest price to be $48. The most popular route (Ontario - Phoenix Sky Harbor Intl), is priced around $77.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $258). Flying from Ontario to Gilbert in March is currently the most expensive (average of $337). 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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$45Average$171FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$110Average$310FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$133Average$333FlexibilityNo cancel feeOn-time71%

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