$56 Cheap Frontier Airlines flights from Philadelphia to Ontario (PHL to ONT)

Choose two or more items and save on your trip:

Find The Best Day To Fly from Philadelphia to Ontario

Amazing Frontier Airlines PHL to ONT Flight Deals

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $105 round trip and $56 one way. Prices and availability subject to change. Additional terms may apply.

ONT From PHL Economy Coach Packages on Similar Airlines

Alhatti Christian Resort
Sheraton Ontario Airport Hotel
Bear Creek Resort
Don't see what you're looking for?
See all available trips from Philadelphia Intl. to Los Angeles - Ontario Intl.
View all trips
Prices and availability subject to change. Additional terms may apply.

Frequently asked questions

Can I catch a flight from PHL to Ontario Airport right now?
It’s wise to know about any travel advice reports and quarantine requirements in effect in your destination city. Be sure to go to the Covid-19 Travel Advisor for up-to-date info on flying to Ontario Airport from PHL.
What terminal is Frontier Airlines at PHL?
If you’re flying with Frontier Airlines from PHL to ONT, you might be able to find out the terminal information once you’re issued with your ticket. If not, consult your airline.
Are there Frontier Airlines non-stop flights from PHL to ONT?
If you’re flying with Frontier Airlines from PHL to Ontario Airport, you’ll need to make a stopover. While you’re waiting for your connecting flight, take the chance to grab a quick bite or go for a wander.
How long is a Frontier Airlines flight from PHL to ONT?
Depending on good weather and no delays, your Frontier Airlines flight from PHL to ONT will take an average of 8 hours and 20 minutes. You’ll have enough time to enjoy a meal, squeeze in a nap and go over your travel program before you hit the runway.
How many direct and indirect flights does Frontier Airlines fly from PHL to ONT?
The path is well trodden from Philadelphia Intl. Airport (PHL) to Ontario Airport. Frontier Airlines connects the two approximately 7 times each week.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to ONT, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best Frontier Airlines flight from Philadelphia PHL to Ontario ONT 

To find the best deals on flights to Philadelphia from Ontario with Frontier Airlines, just enter your travel dates, filter by Frontier Airlines, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Philadelphia PHL to Ontario ONT with Frontier Airlines 

If you’re planning a round trip, booking return flights with Frontier Airlines is usually the most cost-effective option. With airfares ranging from $105 to $111, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Frontier Airlines flights from Philadelphia PHL to Ontario ONT 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Frontier Airlines flight from Philadelphia to Ontario costs from $56. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Ontario ONT from  Philadelphia PHL with Frontier Airlines 

To find a cheap Frontier Airlines flight from Philadelphia PHL to Ontario ONT, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Frontier Airlines flights from Philadelphia PHL to Ontario ONT 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as April, or if you book a flight with a stopover. 

 

Find nonstop flights from Philadelphia PHL to Ontario ONT with Frontier Airlines 

If you’re keen to be on Ontario soil fast, don’t waste time with a stopover—filter your search results to show direct Frontier Airlines flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Frontier Airlines flights from Philadelphia PHL to Ontario ONT 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Ontario ONT from  Philadelphia PHL with Frontier Airlines on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Frontier Airlines Airports
Hop on a(n) Frontier Airlines flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
DENUSADenver Intl.13
MCOUSAOrlando Intl.7
CUNMEXCancun Intl.6
GDLMEXDon Miguel Hidalgo y Costilla Intl.5
PHLUSAPhiladelphia Intl.2
ORDUSAO'Hare Intl.2
MIAUSAMiami Intl.1
LASUSAMcCarran Intl.1
MEXMEXMexico City Intl.1
LAXUSALos Angeles Intl.1

Travelers ❤️ these 🏨 after their flight to Ontario

Azure Hotel & Suites, Trademark Collection by Wyndham
Azure Hotel & Suites, Trademark Collection by Wyndham
3 out of 5
1945 E. Holt Blvd, Ontario, CA
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public areas. ...
8/10 Very Good! (1,386 reviews)
"Loved it. Way more than we expected. Would for sure stay here again."

Reviewed on Mar 25, 2024

Azure Hotel & Suites, Trademark Collection by Wyndham
Ontario Airport Hotel & Conference Center
Ontario Airport Hotel & Conference Center
3.5 out of 5
700 N Haven Ave, Ontario, CA
This hotel features an outdoor pool, a 24-hour gym, and a restaurant. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public ...
8.4/10 Very Good! (2,215 reviews)
"Love I will be back"

Reviewed on Mar 28, 2024

Ontario Airport Hotel & Conference Center
La Quinta Inn & Suites by Wyndham Ontario Airport
La Quinta Inn & Suites by Wyndham Ontario Airport
3 out of 5
3555 Inland Empire Blvd, Ontario, CA
This hotel features an outdoor pool and a gym. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and free airport ...
8.2/10 Very Good! (1,207 reviews)
"Breakfast, view"

Reviewed on Mar 27, 2024

La Quinta Inn & Suites by Wyndham Ontario Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.