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$64 Cheap Frontier Airlines flights Ontario (ONT) to Portland (PDX)

Prices were available within the past 7 days and start at $64 for one-way flights and $109 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Mon, Oct 6 - Fri, Oct 10
ONT
Ontario
PDX
Portland
$109 Roundtrip, just found
$109
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Oct 6 from Ontario to Portland, returning Fri, Oct 10, priced at $109 just found
Frontier Airlines
Tue, Jul 15 - Sat, Jul 19
ONT
Ontario
PDX
Portland
$119 Roundtrip, just found
$119
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Jul 15 from Ontario to Portland, returning Sat, Jul 19, priced at $119 just found
Frontier Airlines
Sun, Sep 21 - Mon, Sep 29
ONT
Ontario
PDX
Portland
$128 Roundtrip, found 11 hours ago
$128
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Sun, Sep 21 from Ontario to Portland, returning Mon, Sep 29, priced at $128 found 11 hours ago
Frontier Airlines
Sun, Jul 20 - Tue, Aug 5
ONT
Ontario
PDX
Portland
$133 Roundtrip, found 5 days ago
$133
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Jul 20 from Ontario to Portland, returning Tue, Aug 5, priced at $133 found 5 days ago
Frontier Airlines
Sat, Jul 19 - Tue, Jul 22
ONT
Ontario
PDX
Portland
$139 Roundtrip, just found
$139
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jul 19 from Ontario to Portland, returning Tue, Jul 22, priced at $139 just found
Frontier Airlines
Sat, Jul 19 - Tue, Aug 5
ONT
Ontario
PDX
Portland
$143 Roundtrip, found 5 days ago
$143
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sat, Jul 19 from Ontario to Portland, returning Tue, Aug 5, priced at $143 found 5 days ago
Flights from Ontario (ONT) to Portland (PDX)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Portland Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, United
Popular airline
Alaska Airlines
Distance
838 mi
Average flight time
3 hours 12 mins

Frequently asked questions

How much is a Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX)?
Scoring cheap one-way Frontier Airlines flights from ONT to PDX from $64 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Alternatively, check out our affordable return fares from $109 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ONT to PDX with Frontier Airlines?
Look for one-way or round-trip flights to Portland in January or December. You could find lower fares with Frontier Airlines during these off-season months.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX) with Frontier Airlines?
Begin your search one to three months before your departure to score cheaper fares on Frontier Airlines flights from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic flights.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX)?
Easily travel from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX) on one of Frontier Airlines's 2 direct weekly flights. Use Expedia's "Nonstop" and "Airline" filters to find the Frontier Airlines flight that'll get you to PDX at your preferred time.
How long does it take to fly from ONT to PDX with Frontier Airlines?
From wheels-up to touchdown, a nonstop Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX) takes around 2h 26m.
What is the earliest Frontier Airlines flight from ONT to PDX?
The first flight from ONT to PDX with Frontier Airlines departs at 8:01AM UTC-8. You'll touch down at 10:27AM UTC-8. The final Frontier Airlines flight of the day takes off at 8:01AM UTC-8 and arrives at 10:27AM UTC-8. With around 20% fewer cancellations for morning and mid-morning flights, heading out early is generally the best option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Portland?
Catch a Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Portland, and you're most likely to touch down at Portland Intl. Airport (PDX). This is the airline's main hub in this destination.
Why fly with Frontier Airlines from ONT to PDX?
With a rewarding loyalty program, Frontier Airlines is a popular choice for many travelers departing from ONT to PDX. Plus, if you're a Frontier Miles and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Frontier Airlines fly from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX)?
Chances are you'll be flying on an Airbus A320neo for your Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX). However, you may be switched to another aircraft if there are operational changes.
Can I change or cancel my Frontier Airlines flight from Los Angeles - Ontario Intl. Airport (ONT) to Portland Intl. Airport (PDX)?
Typically, you can modify or cancel your flight, although there may be a charge if you made your booking over 24 hours ago. Need flexible options? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge extra if you need to adjust your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.