$111+ Cheap flights from Riverside, CA to Portland (PDX)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
Oct 9 — Oct 161
Round-trip
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 October, booked 84 days in advance, depart on a Saturday or Thursday and return on a Friday
Cheap flight deals from Riverside to Portland
Cheapest
Best
Last-minute
One-way
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 September 9, 2026.
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 September 9, 2026.
This Booking.com deal was found by Cheapflights users on 9/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:38 am -
Nonstop2h 33m
Sun 10/1811:06 am -
Nonstop2h 27m
Deal found 9/4![Frontier logo]()
$187
This FlightHub deal was found by Cheapflights users on 9/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:39 am -
Nonstop2h 32m
Sun 11/111:06 am -
Nonstop2h 30m
Deal found 9/8![Frontier logo]()
$189
This Frontier deal was found by Cheapflights users on 9/7. 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.
Mon 10/57:38 am -
Nonstop2h 29m
Mon 10/1211:06 am -
Nonstop2h 27m
Deal found 9/7![Frontier logo]()
$190
This WAYA deal was found by Cheapflights users on 9/8. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:38 am -
Nonstop2h 33m
Tue 10/272:53 pm -
1 stop6h 00m
Deal found 9/8![Multiple Airlines logo]()
$191
This Expedia deal was found by Cheapflights users on 9/4. 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 10/84:33 pm -
1 stop19h 07m
Mon 10/1211:06 am -
Nonstop2h 27m
Deal found 9/4![Frontier logo]()
$192
This Expedia deal was found by Cheapflights users on 9/7. 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 10/17:38 am -
Nonstop2h 29m
Mon 10/511:02 am -
Nonstop2h 31m
Deal found 9/7![Frontier logo]()
$193
This CheapOair deal was found by Cheapflights users on 9/7. 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.
Thu 11/197:39 am -
Nonstop2h 32m
Thu 11/266:29 pm -
Nonstop2h 33m
Deal found 9/7![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 9/5. 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.
Mon 10/127:38 am -
Nonstop2h 33m
Tue 10/2011:49 am -
1 stop12h 40m
Deal found 9/5![Frontier logo]()
$195
This Expedia deal was found by Cheapflights users on 9/7. 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.
Mon 10/197:38 am -
Nonstop2h 33m
Fri 10/2312:25 pm -
1 stop26h 45m
Deal found 9/7![Frontier logo]()
$197
Best flights from Riverside to PortlandDiscover carefully curated flight deals from Riverside to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
Discover carefully curated flight deals from Riverside to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/205:25 pm -
1 stop16h 04m
Sat 10/2410:48 am -
1 stop7h 36m
Deal found 9/6![Alaska Airlines logo]()
$223
This Delta deal was found by Cheapflights users on 9/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/132:00 pm -
1 stop6h 00m
Sat 10/1712:29 pm -
1 stop4h 41m
Deal found 9/7![Delta logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 10/307:50 pm -
1 stop13h 39m
Mon 11/22:50 pm -
1 stop5h 58m
Deal found 9/8![Alaska Airlines logo]()
$240
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 10/167:50 pm -
1 stop13h 39m
Mon 10/199:33 pm -
1 stop11h 25m
Deal found 9/7![Alaska Airlines logo]()
$240
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/77:00 am -
Nonstop2h 31m
Sun 1/105:10 pm -
Nonstop2h 24m
Deal found 9/8![Delta logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 12/309:08 am -
1 stop6h 23m
Wed 1/67:09 am -
1 stop7h 32m
Deal found 9/7![Alaska Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 9/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/319:56 am -
Nonstop2h 27m
Sat 10/315:14 pm -
Nonstop2h 24m
Deal found 9/6![Delta logo]()
$287
This Alaska Airlines deal was found by Cheapflights users on 9/8. 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.
Fri 1/158:22 pm -
1 stop13h 04m
Sun 1/175:06 pm -
1 stop14h 40m
Deal found 9/8![Alaska Airlines logo]()
$285
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 11/2411:48 am -
Nonstop2h 29m
Wed 12/210:30 am -
1 stop7h 59m
Deal found 9/6![Alaska Airlines logo]()
$289
Last-minute flights from Riverside to PortlandDiscover last-minute flight deals from Riverside to Portland. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Portland. Data last updated September 9, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 9/3. 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.
Thu 9/2411:30 am -
1 stop24h 24m
Mon 9/2811:02 am -
Nonstop2h 31m
Deal found 9/3![Frontier logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Mon 9/287:38 am -
Nonstop2h 29m
Thu 10/111:02 am -
Nonstop2h 31m
Deal found 9/8![Frontier logo]()
$189
This WAYA deal was found by Cheapflights users on 9/4. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:44 am -
1 stop5h 06m
Thu 10/17:03 am -
1 stop6h 40m
Deal found 9/4![Multiple Airlines logo]()
$197
This Expedia deal was found by Cheapflights users on 9/7. 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 10/17:38 am -
Nonstop2h 29m
Mon 10/511:02 am -
Nonstop2h 31m
Deal found 9/7![Frontier logo]()
$193
This Frontier deal was found by Cheapflights users on 9/7. 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.
Mon 10/57:38 am -
Nonstop2h 29m
Mon 10/1211:06 am -
Nonstop2h 27m
Deal found 9/7![Frontier logo]()
$190
This Expedia deal was found by Cheapflights users on 9/4. 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 10/84:33 pm -
1 stop19h 07m
Mon 10/1211:06 am -
Nonstop2h 27m
Deal found 9/4![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 9/4. 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.
Mon 10/127:38 am -
Nonstop2h 33m
Tue 10/2011:49 am -
1 stop12h 40m
Deal found 9/4![Frontier logo]()
$195
This Booking.com deal was found by Cheapflights users on 9/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:38 am -
Nonstop2h 33m
Sun 10/1811:06 am -
Nonstop2h 27m
Deal found 9/4![Frontier logo]()
$187
This Super.com deal was found by Cheapflights users on 9/3. 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.
Thu 10/157:38 am -
Nonstop2h 33m
Mon 10/1912:25 pm -
1 stop5h 16m
Deal found 9/3![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/219:12 am -
1 stop4h 20m
Sun 10/2511:06 am -
Nonstop2h 27m
Deal found 9/7![Multiple Airlines logo]()
$199
One-way flights from Riverside to PortlandSearch for one-way flight options from Riverside to Portland. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
Search for one-way flight options from Riverside to Portland. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This WAYA deal was found by Cheapflights users on 9/5. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:44 am -
1 stop4h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$111
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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.
Sat 10/103:37 pm -
1 stop5h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Alaska Airlines logo]()
$112
This Super.com deal was found by Cheapflights users on 9/8. 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.
Wed 9/235:20 pm -
1 stop18h 16m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$115
This Priceline deal was found by Cheapflights users on 9/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/49:00 am -
1 stop7h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$116
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 9/305:00 pm -
1 stop16h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$117
This CheapOair deal was found by Cheapflights users on 9/3. 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.
Fri 9/2510:04 pm -
1 stop13h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Frontier logo]()
$118
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/88:22 am -
2 stops27h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$119
This Super.com deal was found by Cheapflights users on 9/5. 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.
Fri 10/167:38 am -
Nonstop2h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$120
This Super.com deal was found by Cheapflights users on 9/8. 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.
Mon 10/57:38 am -
Nonstop2h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$121
This Expedia deal was found by Cheapflights users on 9/5. 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 10/2211:20 am -
1 stop24h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$122
This CheapOair deal was found by Cheapflights users on 9/5. 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.
Fri 10/210:04 pm -
1 stop13h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Frontier logo]()
$123
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/176:02 pm -
1 stop5h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$124
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $187 (Booking.com) |
One-way from | $111 (WAYA) |
Popular in | June |
Cheapest in | January |
Average price | $254 |
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 7,457,451 searches. Data last updated September 9, 2026.
Use the filters below to find and compare flights from Riverside to Portland that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Thu 10/15
5:25 pm-11:14 pm
1 stop5h 49m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$112
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Sat 10/10
3:37 pm-8:50 pm
1 stop5h 13m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$112
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Mon 9/28
1:59 pm-9:07 am
1 stop19h 08m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$117
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Mon 10/5
5:25 pm-9:29 am
1 stop16h 04m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$117
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Wed 9/30
5:00 pm-9:07 am
1 stop16h 07m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$117
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Thu 10/1
7:16 am-4:50 pm
1 stop9h 34m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$117
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Sat 10/31
5:25 am-12:10 pm
2 stops6h 45m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Wed 11/18
1:20 pm-9:30 pm
2 stops8h 10m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Wed 11/4
1:20 pm-9:30 pm
2 stops8h 10m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
Los AngelesPortland
LAX Los Angeles - PDX Portland
LAXPDX
Los Angeles
Thu 10/8
2:50 pm-11:30 pm
1 stop8h 40m
Portland
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$134
Showing 1-10 of 21 resultsSorted by cheapest first
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.
LAX-PDX
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
R1V-PDX
LAX-PDX
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 September 9, 2026.
One of the essential ways to save on airfare from Riverside to Portland is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 27% on airfare.
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 September 9, 2026.
The most flights from R1V to PDX are scheduled on a Sunday (62 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (14 on average).
How much does it cost to fly round-trip from Riverside to Portland?
Airfare is below average for this route at the moment.
Riverside to Portland flights typically cost between $209 and $355 in October.The cheapest round-trip price found within the last 5 days was $187 on Frontier (Oct 15-Oct 18).
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 September 5, 2026.
Travelers seeking maximum savings on their Riverside to Portland flight should consider departing on Friday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 September 9, 2026.
Read through reviews of airlines operating flights from Riverside to Portland, such as Alaska Airlines,Delta, andHawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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 locationsBeaverton
Seaside
Lincoln City
Durham
Longview
Lake Oswego
Vancouver
Kelso
Troutdale
Clackamas
Cannon Beach
McMinnville
The Dalles
Wilsonville
Stevenson
Tillamook
Hillsboro
Astoria
Gresham
Silverton
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Riverside and Portland flights
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Top 8 airlines flying from Riverside to Portland
Discover the top 8 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$51 | Average$204 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$298 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$90 | Average$280 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$310 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$158 | Average$304 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$168 | Average$411 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$176 | Average$280 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$188 | Average$322 | FlexibilityNo cancel fee | On-time69% |