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Gilbert

$49+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — PHX
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 Tuesday or Wednesday and return on a Wednesday

Cheap 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 January 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 2/279:43 pm
ONT
-
PHX
2 stops9h 29m
Frontier
Mon 3/210:39 pm
PHX
-
ONT
1 stop23h 55m
Frontier
Deal found 1/27$151
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 2/279:43 pm
ONT
-
PHX
2 stops9h 29m
Frontier
Sun 3/110:32 pm
PHX
-
ONT
1 stop15h 39m
Frontier
Deal found 1/27$153
This Frontier deal was found by Cheapflights users on 1/26. 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.
Tue 2/172:06 pm
ONT
-
PHX
1 stop3h 48m
Frontier
Thu 2/198:25 am
PHX
-
ONT
1 stop5h 48m
Frontier
Deal found 1/26$154
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Sun 3/82:06 pm
ONT
-
PHX
1 stop19h 16m
Frontier
Wed 3/115:57 pm
PHX
-
ONT
2 stops38h 09m
Frontier
Deal found 1/28$155
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Thu 2/267:22 pm
ONT
-
PHX
1 stop12h 28m
Multiple Airlines
Mon 3/26:30 am
PHX
-
ONT
2 stops7h 41m
Multiple Airlines
Deal found 1/27$156
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/253:22 pm
ONT
-
PHX
1 stop15h 58m
Frontier
Wed 3/410:11 am
PHX
-
ONT
2 stops9h 11m
Frontier
Deal found 1/28$157
This Super.com deal was found by Cheapflights users on 1/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:10 am
ONT
-
PHX
1 stop8h 09m
Frontier
Sat 2/147:06 pm
PHX
-
ONT
1 stop5h 53m
Frontier
Deal found 1/27$158
This Southwest deal was found by Cheapflights users on 1/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:40 am
ONT
-
PHX
1 stop6h 15m
Southwest
Tue 3/34:15 pm
PHX
-
ONT
2 stops5h 05m
Southwest
Deal found 1/28$159
This Frontier deal was found by Cheapflights users on 1/26. 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 2/93:22 pm
ONT
-
PHX
1 stop4h 41m
Frontier
Sat 2/143:05 pm
PHX
-
ONT
1 stop5h 09m
Frontier
Deal found 1/26$160
This Booking.com deal was found by Cheapflights users on 1/27. 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 2/108:36 am
ONT
-
PHX
1 stop7h 43m
Frontier
Wed 2/113:05 pm
PHX
-
ONT
1 stop4h 17m
Frontier
Deal found 1/27$161
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 2/172:06 pm
ONT
-
PHX
1 stop22h 49m
Frontier
Fri 2/209:47 pm
PHX
-
ONT
1 stop10h 39m
Frontier
Deal found 1/27$162
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/32:06 pm
ONT
-
PHX
1 stop3h 48m
Frontier
Thu 3/59:30 am
PHX
-
ONT
1 stop4h 41m
Frontier
Deal found 1/28$163

Find flight deals from Ontario to Gilbert

Keep the following information in mind while searching for Ontario to Gilbert flight deals. Data was last updated January 29, 2026.

Round-trip from

$151
(Kiwi.com)

One-way from

$49
(Southwest)

Popular in

December

Cheapest in

September

Average price

$258
From Ontario to Gilbert
Search Deals
One-way flight from Ontario to Gilbert
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 2026.
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

Tue 2/17

2:06 pm-6:54 pm

1 stop3h 48m

Phoenix Sky Harbor Intl

Thu 2/19

8:25 am-1:13 pm

1 stop5h 48m

$154

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 2/19

6:40 am-1:55 pm

1 stop6h 15m

Phoenix Sky Harbor Intl

Tue 3/3

4:15 pm-8:20 pm

2 stops5h 05m

$159

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 2/26

7:20 pm-9:35 pm

Nonstop1h 15m

Phoenix Sky Harbor Intl

Thu 3/5

5:30 pm-5:45 pm

Nonstop1h 15m

$171

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Mon 4/27

11:44 am-9:16 pm

2 stops9h 32m

Phoenix Sky Harbor Intl

Wed 4/29

8:02 pm-8:04 am

1 stop12h 02m

$180

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 4/14

7:29 pm-11:49 pm

1 stop4h 20m

Phoenix Sky Harbor Intl

Wed 4/15

2:05 pm-6:34 pm

1 stop4h 29m

$180

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Sat 2/21

2:35 pm-9:00 pm

1 stop5h 25m

Phoenix Sky Harbor Intl

Sat 2/28

8:40 pm-8:55 pm

Nonstop1h 15m

$181

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 3/10

12:22 pm-1:45 pm

Nonstop1h 23m

Phoenix Sky Harbor Intl

Thu 3/12

7:27 am-8:51 am

Nonstop1h 24m

$194

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 3/5

2:06 pm-11:59 pm

1 stop8h 53m

Phoenix Sky Harbor Intl

Sat 3/7

7:45 pm-11:59 pm

1 stop5h 14m

$198

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Thu 2/26

7:22 pm-7:42 am

2 stops11h 20m

Phoenix Sky Harbor Intl

Sun 3/1

10:32 pm-1:11 pm

1 stop15h 39m

$200

OntarioPhoenix

ONT - PHX

ONTPHX

Ontario

Tue 2/10

8:36 am-5:19 pm

1 stop7h 43m

Phoenix Sky Harbor Intl

Thu 2/12

9:30 am-6:27 pm

1 stop9h 57m

$201

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

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 January 23, 2026.

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, April is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $28). 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 January 29, 2026.

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 evening tend to be the most expensive. A flight at noon could potentially save you up to 14% 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 January 24, 2026.

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 afternoons 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 January 29, 2026.

The most flights from ONT to G1L are scheduled on a Tuesday (10 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 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 January 29, 2026.
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
4,267 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,267 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 6 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 3h 48m. 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 Southwest, with whom users have recently found tickets for as low as $48. However, be on the lookout for offers from Frontier 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: British Airways (89%), Porter Airlines (87%), American Airlines( 86%).

  • What are the cheapest flights from Ontario to Gilbert?

    Looking for the cheapest flight from Ontario to Gilbert? While on average our users pay $679, our data indicates the cheapest price to be $108. The most popular route (Ontario - Phoenix Sky Harbor Intl), is priced around $97.

  • 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, April is the cheapest month in which you can book a flight from Ontario to Gilbert (average of $28). 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$49Average$175FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$97Average$333FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$121Average$331FlexibilityNo cancel feeOn-time71%

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