Cheap Flight Tickets from Philadelphia (PHL) to Ontario (ONT), Starting at $135

Good to Know: Cheapest and Fastest PHL - ONT Flights

Useful information for finding best airline tickets from Philadelphia International to Ontario International on your next trip.

Cheapest Round Trip Flight

$277

WN Southwest Airlines • 1 stop • 12h 10m

Nov 26 – Nov 26

The cheapest round trip flight from Philadelphia to Ontario (PHL-ONT-PHL) is currently $277

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Cheapest One way Flight

$382

AS Alaska Airlines • 1 stop • 18h 31m

Nov 09

The cheapest one way flight from Philadelphia to Ontario (PHL-ONT) is currently $382

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Fastest Flight

12h 10m

The fastest nonstop flight from Philadelphia to Ontario (PHL-ONT) takes 12h 10m

Top Airlines Flying from Philadelphia to Ontario

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Philadelphia (PHL) to Ontario (ONT)

Compare and book low fare round-trip air tickets from Philadelphia to Ontario. Ideal for travelers with confirmed return itineraries.

Nov 26 - Nov 26, Economy
WN
Philadelphia → Ontario
12h 10m
7:55 AM - 12:25 PM • 1 stop
WN
Philadelphia → Ontario
17h 25m
10:15 PM - 12:00 PM • 1 stop
$277
Southwest Airlines
Nov 26 - Nov 26, Economy
DL
Philadelphia → Ontario
15h 4m
1:45 PM - 7:49 PM • 1 stop
DL
Philadelphia → Ontario
13h 27m
11:59 PM - 10:05 AM • 1 stop
$335
Delta Airlines
Nov 26 - Nov 26, Economy
DL
Philadelphia → Ontario
13h 23m
6:00 AM - 11:03 AM • 1 stop
DL
Philadelphia → Ontario
13h 27m
11:59 PM - 10:05 AM • 1 stop
$421
Delta Airlines
Nov 26 - Nov 26, Economy
DL
Philadelphia → Ontario
21h 56m
7:00 AM - 5:16 PM • 1 stop
DL
Philadelphia → Ontario
13h 27m
11:59 PM - 10:05 AM • 1 stop
$509
Delta Airlines
Nov 26 - Nov 26, Economy
DL
Philadelphia → Ontario
25h 15m
6:15 AM - 6:30 PM • 2 stops
DL
Philadelphia → Ontario
13h 27m
11:59 PM - 10:05 AM • 1 stop
$519
Delta Airlines
Nov 26 - Nov 26, Economy
DL
Philadelphia → Ontario
23h 35m
7:15 AM - 6:30 PM • 1 stop
DL
Philadelphia → Ontario
13h 27m
11:59 PM - 10:05 AM • 1 stop
$570
Delta Airlines

Fly from Philadelphia to Ontario with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Philadelphia to Ontario? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Philadelphia to Ontario Flights

What are the airports in Philadelphia?
PHL
What’s the most popular airline flying from PHL to ONT?
The most popular airline flying from Philadelphia to Ontario are
Can I fly from PHL to ONT non-stop?
NO
Which airlines fly nonstop between Philadelphia and Ontario?
The non-stop flights between Philadelphia and Ontario are .
What’s the earliest departure time from PHL to ONT Airport?
The earliest flight leaves PHL at 6:00 am and lands in ONT - Ontario International
What are the airports in Ontario?
ONT
Can I make changes to my Philadelphia to Ontario flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from PHL to ONT?
Read the fare rules of the Philadelphia to Ontario air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Philadelphia and Ontario?
operate flights between Philadelphia and Ontario
How long does a flight from Philadelphia to Ontario take?
It takes approximately 5 hour to fly non-stop from PHL to ONT, which is 2355.69 miles by air.
Which airlines provide the cheapest flights from Philadelphia (PHL) to Ontario (ONT) ?
In the past couple of days, the cheapest tickets to ONT from PHL were found on AS : USD 667
Do I need a passport to fly between PHL and ONT?
No
What’s the latest departure time from PHL to ONT ?
The last flight leaves PHL at 5:49 pm

Philadelphia (PHL) to Ontario (ONT): Airport Information

Origin Airport Philadelphia International , Philadelphia, US
Destination Airport Ontario International , Ontario, US
Distance 2356 miles

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