$78+ Cheap flights from Riverside, CA to Portland (PDX)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
Jan 11 — Jan 181
1 adult, Economy
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Find cheap flights from Riverside to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Riverside to Portland are usually found in January or February, booked 59 days in advance, depart on a Saturday or Thursday and return on a Friday
Cheap flight deals from Riverside to Portland
Cheapest flights from Riverside to PortlandExplore the most affordable flight options available from Riverside to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
Explore the most affordable flight options available from Riverside to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:55 pmLAX - PDX
Nonstop2h 29mMultiple Airlines
Thu 1/112:39 pmPDX - LAX
Nonstop2h 22mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:55 pmLAX - PDX
Nonstop2h 29mMultiple Airlines
Thu 1/112:39 pmPDX - LAX
Nonstop2h 22mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$137
This Alaska Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/247:24 pmLAX - PDX
Nonstop2h 37mAlaska Airlines
Wed 12/315:48 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
Deal found 12/10![Alaska Airlines logo]()
$139
This CheapOair deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:11 pmLAX - PDX
1 stop24h 13mFrontier
Thu 1/112:39 pmPDX - LAX
Nonstop2h 22mFrontier
Deal found 12/10![Frontier logo]()
$142
This Alaska Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:55 pmLAX - PDX
Nonstop2h 29mAlaska Airlines
Wed 1/710:52 amPDX - LAX
Nonstop2h 23mAlaska Airlines
Deal found 12/9![Alaska Airlines logo]()
$148
This Alaska Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:55 pmLAX - PDX
Nonstop2h 29mAlaska Airlines
Tue 1/65:48 pmPDX - LAX
Nonstop2h 37mAlaska Airlines
Deal found 12/9![Alaska Airlines logo]()
$157
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:07 amLAX - PDX
Nonstop2h 30mFrontier
Sat 1/35:39 pmPDX - LAX
Nonstop2h 24mFrontier
Deal found 12/10![Frontier logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:55 pmLAX - PDX
Nonstop2h 29mMultiple Airlines
Sun 1/45:39 pmPDX - LAX
Nonstop2h 24mMultiple Airlines
Deal found 12/10![Multiple Airlines logo]()
$159
This Frontier deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:07 amLAX - PDX
Nonstop2h 30mFrontier
Fri 1/28:45 pmPDX - LAX
1 stop10h 53mFrontier
Deal found 12/10![Frontier logo]()
$161
This Super.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/302:07 pmLAX - PDX
Nonstop2h 37mFrontier
Thu 1/112:39 pmPDX - LAX
Nonstop2h 22mFrontier
Deal found 12/11![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:07 amLAX - PDX
Nonstop2h 30mMultiple Airlines
Thu 12/254:26 pmPDX - LAX
Nonstop2h 37mMultiple Airlines
Deal found 12/11![Multiple Airlines logo]()
$165
This Expedia deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/259:07 amLAX - PDX
Nonstop2h 30mMultiple Airlines
Wed 1/710:33 amPDX - LAX
1 stop7h 04mMultiple Airlines
Deal found 12/10![Multiple Airlines logo]()
$167
Find flight deals from Riverside to Portland
Keep the following information in mind while searching for Riverside to Portland flight deals. Data was last updated December 12, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $127 (Kiwi.com) |
One-way from | $78 (Kiwi.com) |
Popular in | November |
Cheapest in | January |
Average price | $212 |
Cheapflights Fare Finder
Customize your flight search to find flights from Riverside to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from Riverside to Portland that are best for you.
Fly from
Riverside
Fly to
Portland
Route
Depart
Return
Price
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Fri 3/6
9:20 am-11:52 am
Nonstop2h 32m
Portland
Mon 3/9
9:53 am-9:20 pm
1 stop11h 27m
$133
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 12/24
7:55 pm-10:24 pm
Nonstop2h 29m
Portland
Thu 1/1
5:48 pm-8:25 pm
Nonstop2h 37m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 12/24
7:55 pm-10:24 pm
Nonstop2h 29m
Portland
Wed 12/31
5:48 pm-8:25 pm
Nonstop2h 37m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Tue 1/13
11:06 am-1:41 pm
Nonstop2h 35m
Portland
Wed 1/21
10:52 am-1:15 pm
Nonstop2h 23m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 1/14
11:00 am-1:35 pm
Nonstop2h 35m
Portland
Tue 1/20
10:52 am-1:15 pm
Nonstop2h 23m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Tue 1/13
7:55 pm-10:24 pm
Nonstop2h 29m
Portland
Tue 1/20
2:57 pm-5:22 pm
Nonstop2h 25m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 1/17
11:06 am-1:41 pm
Nonstop2h 35m
Portland
Wed 1/21
5:50 pm-8:15 pm
Nonstop2h 25m
$139
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 1/3
7:55 pm-10:24 pm
Nonstop2h 29m
Portland
Wed 1/7
2:57 pm-5:22 pm
Nonstop2h 25m
$157
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 1/3
7:55 pm-10:24 pm
Nonstop2h 29m
Portland
Wed 1/28
5:50 pm-8:15 pm
Nonstop2h 25m
$157
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Thu 1/1
9:07 am-11:37 am
Nonstop2h 30m
Portland
Mon 1/5
7:00 am-9:33 am
Nonstop2h 33m
$158
Showing 1-10 of 21 results
Best time to book a flight from Riverside to Portland
Have a flexible travel schedule? Discover the best time to fly to Portland from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Riverside to Portland
How far ahead should I book a flight from Riverside to Portland?
Use this chart to determine the optimal time to book a round-trip flight from Riverside to Portland. Price data was last updated on December 5, 2025.
Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Riverside to Portland?
Currently, December is the cheapest month in which you can book a flight from Riverside to Portland (average of $38). Flying from Riverside to Portland in November is currently the most expensive (average of $90). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from R1V to PDX?
Find hourly flight availability from Riverside to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.
One of the essential ways to save on airfare from Riverside to Portland is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 24% on airfare.
What is the cheapest day to fly from Riverside to Portland?
Use this chart to determine the cheapest time to fly round-trip from Riverside to Portland. Price data was last updated on December 6, 2025.
Travelers seeking maximum savings on their Riverside to Portland flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Riverside to Portland
Explore weekly flight availability from Riverside to Portland. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 12, 2025.
The most flights from R1V to PDX are scheduled on a Thursday (69 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 on average).
How much does it cost to fly round-trip from Riverside to Portland?
Reviews of airlines servicing Portland
Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated December 12, 2025.
Read through reviews of airlines operating flights from Riverside to Portland, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Comfort
7.8
Boarding
8.1
Food
7.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreArt,Dec 2025
SAN - OGG
Related info for your journey
Find useful and relevant information for your journey from Riverside to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsVancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Troutdale
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Tillamook
Gresham
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Riverside to Portland
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Riverside to Portland
Discover the top 7 airlines that operate flights from Riverside to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 12, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$30 | Average$136 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$256 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$263 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$93 | Average$160 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$275 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$284 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$168 | Average$399 | FlexibilityNo cancel fee | On-time71% |