Flying from Portland, Or to Ontario can be expensive. Our search helps you compare cheap flights, airfare deals, and flight tickets across airlines and agencies so you can book at the best price.
We scan trusted travel agencies and airline booking systems for the route Portland, Or - Ontario (PDX - ONT). We do not sell tickets or add fees - you choose where to buy.
Airfares vary by date, time, and airport. Use filters to find the best option by departure/arrival time, number of stops, airline or alliance, and booking channel.
If your dates are flexible, check the low-fare calendar to find the cheapest days. Booking round-trip in one order often reduces fees, and prices usually rise as departure approaches.
We also recommend you to look through the prices for return tickets from Ontario to Portland, Or.
Airfares found by our users in the past 24 hours
The price for these dates could change. Use search to get the best price.
Airlines are flying from Portland, Or to Ontario
| Alaska Airlines | Frontier Airlines |
Popular flights from Portland, Or
- Cheap flights from Portland, Or to Los Angeles, Cafrom 10 477र
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- Cheap flights from Portland, Or to Seattle, WAfrom 10 039र
- Cheap flights from Portland, Or to Las Vegasfrom 15 902र
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- Cheap flights from Portland, Or to Washingtonfrom 8 373र
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- Cheap flights from Portland, Or to New Yorkfrom 13 837र
- Cheap flights from Portland, Or to Atlanta, GAfrom 13 998र
- Cheap flights from Portland, Or to San Diegofrom 29 588र
Frequently asked questions about flights from Portland, Or to Ontario
How long does the flight from Portland, Or to Ontario take?
Flight duration from Portland, Or to Ontario varies by route, airline, and number of stops. Direct flights are faster; connecting flights may take longer. Use our search to compare options and see exact durations for your dates.
Are there direct flights from Portland, Or to Ontario?
Availability of direct flights from Portland, Or to Ontario depends on the route and season. Use our search and filter by "Direct" or "Non-stop" to see only direct options. We compare offers from many airlines and agencies.
Which airlines fly from Portland, Or to Ontario?
Several airlines may operate flights from Portland, Or to Ontario. On this page you can see airlines that serve this route. Our search compares prices across airlines and agencies so you can choose the best offer. We do not sell tickets; you book directly with the airline or agency.
What is the cheapest month to fly from Portland, Or to Ontario?
Prices from Portland, Or to Ontario vary by month and demand. On this page you can see average round-trip prices by month. Use the low-fare calendar and monthly table to find the cheapest dates. Booking in advance and avoiding peak seasons often helps get the best price.