Cheap Flights from Ontario, CA to Philadelphia, PA from $87

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On Cheapflightsplus.com you will find 156 connecting flights from Ontario to Philadelphia. You can compare airfare deals from 4 airlines and multiple travel sites from $87, book and save on cheap plane tickets and last minute offers. Also check out ONT-PHL flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Ontario to Philadelphia Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $87 (one-way), $149 (round-trip).

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Best Flights from Ontario to Philadelphia Today

Take a look at the list of non stop flights and flights with layovers from Ontario to Philadelphia with the lowest price of $87. Take a look at the list of flights with layovers from Ontario to Philadelphia from $87. There’re no direct flights. The fastest connecting flight – 6h 45m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $87 Find flight	17:14 Ontario Ontario Int.	05:49+1 день Philadelphia Philadelphia Int.	9h 35m layover 3h 26m - Las Vegas	Frontier Airlines	F91358 F91602
from $93 Find flight	00:59 Ontario Ontario Int.	05:09+1 день Philadelphia Philadelphia Int.	25h 10m layover 19h 11m - Denver	Frontier Airlines	F91500 F93340
from $105 Find flight	07:00 Ontario Ontario Int.	05:49+1 день Philadelphia Philadelphia Int.	19h 49m layover 13h 43m - Las Vegas	Frontier Airlines	F92232 F91602
from $112 Find flight	19:36 Ontario Ontario Int.	05:49+1 день Philadelphia Philadelphia Int.	7h 13m layover 1h 12m - Las Vegas	Frontier Airlines	F94758 F91602
from $117 Find flight	00:59 Ontario Ontario Int.	22:09 Philadelphia Philadelphia Int.	18h 10m layover 12h 6m - Denver	Frontier Airlines	F91500 F93266
from $128 Find flight	17:21 Ontario Ontario Int.	22:09+1 день Philadelphia Philadelphia Int.	25h 48m layover 19h 41m - Denver	Frontier Airlines	F92908 F93266
from $180 Find flight	13:15 Ontario Ontario Int.	23:06 Philadelphia Philadelphia Int.	6h 51m layover 1h 0m - Denver	United Airlines	UA1417 UA360
from $180 Find flight	07:02 Ontario Ontario Int.	17:35 Philadelphia Philadelphia Int.	7h 33m layover 1h 10m - Chicago	United Airlines	UA2226 UA1617
from $180 Find flight	18:36 Ontario Ontario Int.	05:26+1 день Philadelphia Philadelphia Int.	7h 50m layover 1h 9m - San Francisco	United Airlines	UA393 UA2110
from $182 Find flight	13:19 Ontario Ontario Int.	23:30 Philadelphia Philadelphia Int.	7h 11m layover 1h 13m - Denver	United Airlines	UA1697 UA360
from $182 Find flight	18:38 Ontario Ontario Int.	05:35+1 день Philadelphia Philadelphia Int.	7h 57m layover 2h 4m - Denver	United Airlines	UA368 UA1218
from $183 Find flight	13:34 Ontario Ontario Int.	23:19 Philadelphia Philadelphia Int.	6h 45m layover 0h 48m - Denver	United Airlines	UA1942 UA360
from $183 Find flight	05:05 Ontario Ontario Int.	15:35 Philadelphia Philadelphia Int.	7h 30m layover 1h 33m - Denver	United Airlines	UA1575 UA2679
from $183 Find flight	07:00 Ontario Ontario Int.	17:36 Philadelphia Philadelphia Int.	7h 36m layover 1h 17m - Chicago	United Airlines	UA356 UA1617
from $183 Find flight	06:10 Ontario Ontario Int.	17:22 Philadelphia Philadelphia Int.	8h 12m layover 1h 18m - San Francisco	United Airlines	UA277 UA706
from $186 Find flight	06:04 Ontario Ontario Int.	16:39 Philadelphia Philadelphia Int.	7h 35m layover 1h 5m - Houston	United Airlines	UA1936 UA2196

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on July 03, 2025

Flight Schedule Ontario (California) to Philadelphia (Pennsylvania)

Full flight schedule will help you in detecting at what time planes fly from Ontario to Philadelphia. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.

Departure	Flight Details	Flight Duration	Price
00:59 — 05:09 +1 day	00:59 — 04:19 F91500 Frontier Airlines Ontario — Denver 19h 11m stop 23:30 — 05:09 F93340 Frontier Airlines Denver — Philadelphia	25h 10m including layover	Find flight from$93
00:59 — 22:09	00:59 — 04:19 F91500 Frontier Airlines Ontario — Denver 12h 6m stop 16:25 — 22:09 F93266 Frontier Airlines Denver — Philadelphia	18h 10m including layover	Find flight from$117
05:05 — 15:35	05:05 — 08:23 UA1575 United Airlines Ontario — Denver 1h 33m stop 10:25 — 16:04 UA2679 United Airlines Denver — Philadelphia	7h 30m including layover	Find flight from$183
05:10 — 15:56	05:10 — 08:27 UA2446 United Airlines Ontario — Denver 1h 50m stop 10:17 — 15:56 UA1575 United Airlines Denver — Philadelphia	7h 46m including layover	Find flight from$186
06:00 — 05:40 +1 day	06:00 — 08:45 HA6288 Hawaiian Airlines Ontario — Seattle 12h 40m stop 21:25 — 05:40 HA6544 Hawaiian Airlines Seattle — Philadelphia	20h 40m including layover	Find flight from$186
06:10 — 17:22	06:10 — 07:37 UA277 United Airlines Ontario — San Francisco 1h 18m stop 08:55 — 17:22 UA706 United Airlines San Francisco — Philadelphia	8h 12m including layover	Find flight from$183
07:00 — 05:49 +1 day	06:00 — 07:13 F92232 Frontier Airlines Ontario — Las Vegas 13h 43m stop 21:54 — 05:49 F91602 Frontier Airlines Las Vegas — Philadelphia	19h 49m including layover	Find flight from$105
07:02 — 17:35	07:00 — 13:03 UA2226 United Airlines Ontario — Chicago 1h 10m stop 14:15 — 17:35 UA1617 United Airlines Chicago — Philadelphia	7h 33m including layover	Find flight from$180
11:39 — 06:00 +1 day	11:39 — 14:19 HA6289 Hawaiian Airlines Ontario — Seattle 7h 26m stop 21:45 — 06:00 HA6681 Hawaiian Airlines Seattle — Philadelphia	15h 21m including layover	Find flight from$189
12:00 — 05:25 +1 day	12:00 — 14:38 HA6289 Hawaiian Airlines Ontario — Seattle 6h 37m stop 21:15 — 05:25 HA6839 Hawaiian Airlines Seattle — Philadelphia	14h 25m including layover	Find flight from$257
13:15 — 23:06	13:15 — 16:32 UA1417 United Airlines Ontario — Denver 1h stop 17:31 — 23:06 UA360 United Airlines Denver — Philadelphia	6h 51m including layover	Find flight from$180
13:19 — 23:30	13:15 — 16:32 UA1697 United Airlines Ontario — Denver 1h 13m stop 17:49 — 23:30 UA360 United Airlines Denver — Philadelphia	7h 11m including layover	Find flight from$182
14:21 — 05:25 +1 day	14:21 — 16:58 HA6307 Hawaiian Airlines Ontario — Seattle 4h 17m stop 21:15 — 05:25 HA6839 Hawaiian Airlines Seattle — Philadelphia	12h 4m including layover	Find flight from$257
14:21 — 05:25 +1 day	14:21 — 16:58 AS1242 Alaska Airlines Ontario — Seattle 4h 17m stop 21:15 — 05:25 AS444 Alaska Airlines Seattle — Philadelphia	12h 4m including layover	Find flight from$264
15:04 — 06:00 +1 day	15:04 — 17:44 HA6290 Hawaiian Airlines Ontario — Seattle 4h 1m stop 21:45 — 06:00 HA6681 Hawaiian Airlines Seattle — Philadelphia	11h 56m including layover	Find flight from$189
15:04 — 06:00 +1 day	15:04 — 17:44 AS1119 Alaska Airlines Ontario — Seattle 4h 1m stop 21:45 — 06:00 HA6681 Hawaiian Airlines Seattle — Philadelphia	11h 56m including layover	Find flight from$264
16:00 — 05:25 +1 day	16:00 — 18:40 HA6290 Hawaiian Airlines Ontario — Seattle 2h 35m stop 21:15 — 05:25 HA6839 Hawaiian Airlines Seattle — Philadelphia	10h 25m including layover	Find flight from$213
16:00 — 05:25 +1 day	16:00 — 18:40 AS1119 Alaska Airlines Ontario — Seattle 2h 35m stop 21:15 — 05:25 AS444 Alaska Airlines Seattle — Philadelphia	10h 25m including layover	Find flight from$220
17:14 — 05:49 +1 day	12:28 — 13:49 F91358 Frontier Airlines Ontario — Las Vegas 3h 26m stop 22:46 — 06:49 F91602 Frontier Airlines Las Vegas — Philadelphia	9h 35m including layover	Find flight from$87
17:21 — 05:09 +1 day	17:21 — 20:44 F92908 Frontier Airlines Ontario — Denver 2h 46m stop 23:30 — 05:09 F93340 Frontier Airlines Denver — Philadelphia	8h 48m including layover	Find flight from$89
18:36 — 05:26 +1 day	18:30 — 19:49 UA393 United Airlines Ontario — San Francisco 1h 9m stop 21:05 — 05:26 UA2110 United Airlines San Francisco — Philadelphia	7h 50m including layover	Find flight from$180
18:38 — 05:35 +1 day	18:31 — 21:50 UA368 United Airlines Ontario — Denver 2h 4m stop 23:59 — 05:37 UA1218 United Airlines Denver — Philadelphia	7h 57m including layover	Find flight from$182
19:22 — 06:00 +2 days	19:22 — 22:05 HA6287 Hawaiian Airlines Ontario — Seattle 23h 40m stop 21:45 — 06:00 HA6681 Hawaiian Airlines Seattle — Philadelphia	31h 38m including layover	Find flight from$225
19:36 — 05:49 +1 day	19:22 — 20:35 F94758 Frontier Airlines Ontario — Las Vegas 1h 12m stop 21:54 — 05:49 F91602 Frontier Airlines Las Vegas — Philadelphia	7h 13m including layover	Find flight from$112

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on July 3, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Ontario to Philadelphia depends on and how to choose the most interesting flight option for you.

Distance between Ontario and Philadelphia is 3783 miles. Time difference between the cities is 3h. Airplanes depart 00:59 to 19:36 from 2 Ontario airports and arrive 00:59 to 19:36 to 4 Philadelphia airports. Average flight time is 15h 21m.

The fastest flight 6h 45m
Average flight time 15h 21m
The earliest flight 00:59
The latest flight 19:36
Distance 2351 ml

The cheapest months to travel to Philadelphia are july (from 117 $), august (from 119 $), february (from 227 $).

The most expensive months are november (from 630 $), december (from 273 $), september (from 249 $).

What is the lowest airfare Ontario to Philadelphia?

The cheapest plane ticket found by our users is $87. This airfare is for economy class on one-way F91358 flight by Frontier Airlines for July 13, 2025 which leaves Ontario Int. in Ontario at 17:14 am and arrives at Philadelphia Philadelphia Int. at 05:49.

Economy class

$87

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First class

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Popular Airlines on the Route

The flight Ontario — Philadelphia is served by 4 regular airlines and 1 low-cost airline. Most of the flights on this route are operated by Alaska Airlines - 47 departures per week at the price of from $ 192 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 631.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 156 flights with layovers on the route. The fastest connecting flight is UA1942 by United Airlines takes 6h 45m and the cheapest is F91358 by Frontier Airlines for $87.

AS - Alaska Airlines

from $192

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F9 - Frontier Airlines

from $87

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HA - Hawaiian Airlines

from $186

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UA - United Airlines

from $180

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Airports

You can fly from Ontario to Philadelphia from 2 airports (Ontario Int., International Heliport).

Ontario airports

Ontario Int.-ONT

from $87
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International Heliport-JIO

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Philadelphia airports

Philadelphia Int.-PHL

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North Philadelphia-PNE

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Mustin Alf-MUV

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Philadelphia Sea Plane Base-PSQ

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Airplanes

There are flights to Philadelphia from Ontario by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Ontario

You may also consider searching for discounted plane tickets to some other popular places from Ontario within United States.

Ontario — Phoenix

from $56

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Ontario — Denver

from $65

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Ontario — Austin

from $67

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Ontario — Miami

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Ontario — Tucson

from $80

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Ontario — Las Vegas

from $63

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Ontario — Seattle

from $65

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Ontario — Boise

from $70

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Ontario — Chicago

from $78

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Ontario — Philadelphia

from $62

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Top International Destinations from Ontario

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Ontario — London

from $62

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Ontario — San Jose

from $61

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Ontario — Guadalajara

from $70

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Ontario — Cancun

from $74

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How to book a plane ticket yourself?

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That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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