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8/17/2026
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Philadelphia to Ontario Flight Deals
PHL Philadelphia Mon, Aug 17
LAX Los Angeles
from $140
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PHL Philadelphia Thu, Aug 13
LAX Los Angeles
from $185
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PHL Philadelphia Fri, Aug 7
LAX Los Angeles
from $205
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PHL Philadelphia Sat, Aug 8
LAX Los Angeles
from $205
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PHL Philadelphia Sun, Aug 9
LAX Los Angeles
from $205
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PHL Philadelphia Thu, Aug 6
LAX Los Angeles
from $205
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PHL Philadelphia Mon, Aug 10
LAX Los Angeles
from $205
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PHL Philadelphia Mon, Aug 3
LAX Los Angeles
from $219
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PHL Philadelphia Thu, Jul 30
LAX Los Angeles
from $219
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PHL Philadelphia Sat, Aug 1
LAX Los Angeles
from $252
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Read moreCheap Flights from Philadelphia to Ontario
Find affordable airfares from Philadelphia (PHL) to Ontario (ONT) and save more on your next flight. Fly to Ontario with a cheap flight ticket on OneTravel and visit one of the most popular tourist destinations. Ontario is an amazing city in the Southern California with great golf courses, museums, gourmet food, and fine drink. While you’re here take tour the historic Graber House, the central manufacturing plant of famous Graber olives, and spend a day at the Cucamonga-Guasti Regional Park. If shopping is your thing, the Ontario Mills shopping mall-cum-amusement park is just not to be missed. Book your Ontario flights on OneTravel and avail discounts on top carriers, including Midwest, Alaska, and AirTran Airways. Your flight from Philadelphia, PA reaches Ontario, CA in about eight hours and fifty minutes, covering about 2,355 miles.
