$74 Cheap flight deals from Portland (PDX) to Riverside (QLA)

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This Weekend's Flight Deals from Portland to Riverside

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Jan 9 - Mon, Jan 12
PDX
Portland Intl.
PSP
Palm Springs Intl.
$217 Roundtrip, found 4 days ago
$217
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Fri, Jan 9 from Portland Intl. to Palm Springs Intl., returning Mon, Jan 12, priced at $217 found 4 days ago
Sun, Jan 11 - Sun, Jan 18
PDX
Portland Intl.
ONT
Los Angeles - Ontario Intl.
$326 Roundtrip, found 2 hours ago
$326
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sun, Jan 11 from Portland Intl. to Los Angeles - Ontario Intl., returning Sun, Jan 18, priced at $326 found 2 hours ago
Sat, Jan 10 - Sun, Jan 11
PDX
Portland Intl.
SNA
John Wayne
$392 Roundtrip, found 1 day ago
$392
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Jan 10 from Portland Intl. to John Wayne, returning Sun, Jan 11, priced at $392 found 1 day ago
Sun, Jan 11 - Thu, Jan 15
PDX
Portland Intl.
LGB
Long Beach Municipal
$418 Roundtrip, found 5 days ago
$418
Roundtrip
found 5 days ago
Select Southwest Airlines flight, departing Sun, Jan 11 from Portland Intl. to Long Beach Municipal, returning Thu, Jan 15, priced at $418 found 5 days ago

Airfares from $74 One Way, $137 Round Trip from Portland to Riverside

Prices starting at $137 for return flights and $74 for one-way flights to Riverside were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Apr 7 - Tue, Apr 14
PDX
Portland
ONT
Ontario
$137 Roundtrip, found 3 hours ago
$137
Roundtrip
found 3 hours ago
Select Alaska Airlines flight, departing Tue, Apr 7 from Portland to Ontario, returning Tue, Apr 14, priced at $137 found 3 hours ago
Sat, Jan 24 - Sat, Jan 31
PDX
Portland
ONT
Ontario
$139 Roundtrip, found 23 hours ago
$139
Roundtrip
found 23 hours ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Portland to Ontario, returning Sat, Jan 31, priced at $139 found 23 hours ago
Thu, Jan 15 - Thu, Jan 22
PDX
Portland
ONT
Ontario
$144 Roundtrip, found 2 days ago
$144
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 15 from Portland to Ontario, returning Thu, Jan 22, priced at $144 found 2 days ago
Fri, Mar 6 - Mon, Mar 9
PDX
Portland
ONT
Ontario
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Fri, Mar 6 from Portland to Ontario, returning Mon, Mar 9, priced at $151 found 1 day ago
Fri, Mar 6 - Mon, Mar 9
PDX
Portland
ONT
Ontario
$151 Roundtrip, found 1 day ago
$151
Roundtrip
found 1 day ago
Select Delta flight, departing Fri, Mar 6 from Portland to Ontario, returning Mon, Mar 9, priced at $151 found 1 day ago

Riverside economy flight packages

Price found within the past 48 hours. Click for updated prices.
Hospitality Inn San Bernardino/ Redlands
2.5-star property

Hospitality Inn San Bernardino/ Redlands

7.4/10 Good! (1,001 reviews)

Feb 16 - Feb 21

5 night stay

Portland (PDX) to Ontario (ONT)

Frontier Airlines • Coach

Ontario (ONT) to Portland (PDX)

Delta • Coach
Price was $483, price is now $367 per person
$367
per person
found 19 hours ago
The Inn was located in a safe neighborhood. Easy check-in, plenty of space for self parking. Room was clean. Highly recommend this Inn!

Reviewed on Jun 11, 2024

Dynasty Suites Redlands
3.0-star property

Dynasty Suites Redlands

9.2/10 Wonderful! (1,004 reviews)

Feb 16 - Feb 21

5 night stay

Portland (PDX) to Ontario (ONT)

Frontier Airlines • Coach

Ontario (ONT) to Portland (PDX)

Delta • Coach
Save 100% on your flight
Price was $607, price is now $448 per person
$448
per person
found 19 hours ago
Could use some repairs, the carpet was wet possible water leakage. The room was none smoking but smelt smoked in. Overall though it was clean and the bed was comfortable.

Reviewed on Sep 1, 2025

Empire Inn
2.5-star property

Empire Inn

7.8/10 Good! (1,002 reviews)

Feb 16 - Feb 21

5 night stay

Portland (PDX) to Ontario (ONT)

Frontier Airlines • Coach

Ontario (ONT) to Portland (PDX)

Delta • Coach
Price was $509, price is now $399 per person
$399
per person
found 19 hours ago
Very clean, safe and affordable. Definitely will stay again.

Reviewed on Sep 21, 2024

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More About Flying To Riverside from Portland

Route Information for Flights from Portland to Riverside

Origin Airport IATA Code
PDX
Destination Airport IATA Code
QLA
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

Portland to Riverside

Getting a spectacularly low fare on Portland to Riverside flights is always possible when you use Orbitz as your personal travel planner. Orbitz is your essential travel resource for low cost flights from Portland to Riverside, discount hotel accommodations, cheap car rentals, and more.

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Flight Alerts Take the Hassle out of Travel

You can get email, SMS text, or voicemail updates regarding any major changes to your flights from Portland to Riverside. These free alerts can also be sent to as many as six additional contacts, ensuring that your friends, colleagues, or family are aware of changes to your arrival time.

Stay in Your Budget and Still Get Great Accommodations

Orbitz shoppers can access affordable vacation packages and have the option of booking their departure and arrival flights through different airlines, making travel less costly and more convenient. The best prices on flights from Portland to Riversideare always found on Orbitz.

Frequently asked questions

Are there non-stop flights from Portland to Riverside?
Yep, your memorable getaway is just a simple flight away. Reserve your favorite seat on board one of the 3 carriers that fly direct from Portland Airport to LAX. Popular choices include:

  • Alaska Airlines
  • Delta
  • American Airlines

What is the shortest flight from Portland to Riverside?
It can take as little as 2 hours and 50 minutes. If you believe your vacation hours should be spent 'vacationing' rather than flying, you'll enjoy the flight from Portland, OR (PDX-Portland Intl.) to Orange County, CA (SNA-John Wayne).
What airlines fly from Portland to Riverside most frequently?
Have a look at Alaska Airlines (AS). This airline offers some of the most frequent flights from Portland Intl. Airport (PDX) to Los Angeles, CA (LAX-Los Angeles Intl.). It operates 199 services on this route every month and is a favorite with passengers. Delta (DL) also operates services from Portland to Riverside. It's another great option and offers 147 flights each month.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.