$93+ 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
5월 19 — 5월 261
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 September, booked 84 days in advance, depart on a Saturday or Thursday and return on a Thursday
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 4월 19, 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 4월 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
화 4/288:00 am
LAX
- PDX
1 stop27h 52m
Frontier
금 5/85:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/14![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 4/14. 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.
금 5/89:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 5/105:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/14![Frontier logo]()
$148
This CheapOair deal was found by Cheapflights users on 4/16. 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.
일 5/109:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
목 5/145:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$149
This Super.com deal was found by Cheapflights users on 4/16. 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.
목 4/309:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
월 5/49:54 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 4/16![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 4/14. 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.
토 5/239:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 5/3112:35 pm
PDX
- LAX
1 stop11h 41m
Frontier
Deal found 4/14![Frontier logo]()
$151
This Expedia deal was found by Cheapflights users on 4/17. 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.
화 5/198:00 am
LAX
- PDX
1 stop5h 50m
Multiple Airlines
토 5/235:31 pm
PDX
- LAX
Nonstop2h 43m
Multiple Airlines
Deal found 4/17![Multiple Airlines logo]()
$152
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 5/76:30 am
LAX
- PDX
1 stop10h 16m
Frontier
일 5/109:46 pm
PDX
- LAX
1 stop18h 11m
Frontier
Deal found 4/15![Frontier logo]()
$153
This Frontier deal was found by Cheapflights users on 4/14. 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.
금 5/299:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 5/3112:35 pm
PDX
- LAX
1 stop11h 41m
Frontier
Deal found 4/14![Frontier logo]()
$155
This Super.com deal was found by Cheapflights users on 4/16. 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.
금 5/89:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
월 5/115:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$157
This Super.com deal was found by Cheapflights users on 4/16. 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.
금 5/159:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
월 5/185:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$158
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 4월 19, 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 4월 19, 2026.
This Delta deal was found by Cheapflights users on 4/18. 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.
화 6/92:19 pm
LAX
- PDX
Nonstop2h 23m
Delta
수 6/248:19 pm
PDX
- LAX
Nonstop2h 32m
Delta
Deal found 4/18![Delta logo]()
$198
This United Airlines deal was found by Cheapflights users on 4/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 8/158:21 pm
LAX
- PDX
1 stop4h 26m
United Airlines
토 8/2211:09 am
PDX
- LAX
1 stop4h 26m
United Airlines
Deal found 4/16![United Airlines logo]()
$219
This Alaska Airlines deal was found by Cheapflights users on 4/14. 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.
화 5/267:15 am
LAX
- PDX
Nonstop2h 32m
Alaska Airlines
일 6/710:30 am
PDX
- LAX
Nonstop2h 38m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 5/123:35 pm
LAX
- PDX
2 stops7h 35m
Southwest
토 5/165:30 am
PDX
- LAX
1 stop3h 45m
Southwest
Deal found 4/14![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 4/18. 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.
토 7/182:19 pm
LAX
- PDX
Nonstop2h 15m
Delta
금 7/248:19 pm
PDX
- LAX
Nonstop2h 30m
Delta
Deal found 4/18![Delta logo]()
$229
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
일 6/217:00 am
LAX
- PDX
Nonstop2h 21m
Alaska Airlines
토 6/279:27 pm
PDX
- LAX
Nonstop2h 29m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$248
This United Airlines deal was found by Cheapflights users on 4/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
월 5/188:15 pm
LAX
- PDX
1 stop4h 18m
United Airlines
토 5/238:35 am
PDX
- LAX
1 stop7h 00m
United Airlines
Deal found 4/17![United Airlines logo]()
$256
This Southwest deal was found by Cheapflights users on 4/17. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
토 5/236:15 pm
LAX
- PDX
1 stop3h 45m
Southwest
월 5/255:30 am
PDX
- LAX
1 stop5h 00m
Southwest
Deal found 4/17![Southwest logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 4/15. 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.
수 5/131:39 pm
LAX
- PDX
1 stop7h 49m
Alaska Airlines
일 5/175:00 am
PDX
- LAX
1 stop5h 56m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 4/17. 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.
목 6/188:00 pm
LAX
- PDX
Nonstop2h 22m
Delta
월 6/226:35 am
PDX
- LAX
Nonstop2h 30m
Delta
Deal found 4/17![Delta logo]()
$259
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
화 7/148:05 pm
LAX
- PDX
1 stop4h 45m
United Airlines
화 7/215:15 am
PDX
- LAX
1 stop5h 19m
United Airlines
Deal found 4/14![United Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 4/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 5/136:20 am
LAX
- PDX
2 stops7h 20m
Southwest
목 5/145:20 am
PDX
- LAX
1 stop8h 45m
Southwest
Deal found 4/15![Southwest logo]()
$284
Last-minute flights from Riverside to PortlandDiscover last-minute flight deals from Riverside to Portland. Data last updated 4월 19, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Portland. Data last updated 4월 19, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
화 4/288:00 am
LAX
- PDX
1 stop27h 52m
Frontier
금 5/85:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/14![Frontier logo]()
$147
This Super.com deal was found by Cheapflights users on 4/16. 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.
목 4/309:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
월 5/49:54 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 4/16![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 4/14. 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.
수 5/68:25 am
LAX
- PDX
1 stop5h 22m
Multiple Airlines
월 5/115:31 pm
PDX
- LAX
Nonstop2h 43m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$152
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
목 5/76:30 am
LAX
- PDX
1 stop10h 16m
Frontier
일 5/109:46 pm
PDX
- LAX
1 stop18h 11m
Frontier
Deal found 4/15![Frontier logo]()
$153
This Super.com deal was found by Cheapflights users on 4/14. 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.
금 5/89:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 5/105:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/14![Frontier logo]()
$148
This Super.com deal was found by Cheapflights users on 4/16. 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.
금 5/89:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
월 5/115:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$157
This CheapOair deal was found by Cheapflights users on 4/16. 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.
일 5/109:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
목 5/145:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$149
This Super.com deal was found by Cheapflights users on 4/16. 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.
금 5/159:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
월 5/185:31 pm
PDX
- LAX
Nonstop2h 43m
Frontier
Deal found 4/16![Frontier logo]()
$158
This Frontier deal was found by Cheapflights users on 4/14. 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.
토 5/239:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 5/3112:35 pm
PDX
- LAX
1 stop11h 41m
Frontier
Deal found 4/14![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 4/14. 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.
목 5/289:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
일 6/711:15 am
PDX
- LAX
1 stop8h 17m
Frontier
Deal found 4/14![Frontier logo]()
$155
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 4월 19, 2026.
Search for one-way flight options from Riverside to Portland. Find affordable one-way fares based on user searches. Data last updated 4월 19, 2026.
This Super.com deal was found by Cheapflights users on 4/14. 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.
일 5/179:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
Deal found 4/14![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 4/14. 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.
일 8/99:18 am
LAX
- PDX
Nonstop2h 23m
Frontier
Deal found 4/14![Frontier logo]()
$94
This Super.com deal was found by Cheapflights users on 4/14. 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.
수 4/294:17 pm
LAX
- PDX
1 stop18h 46m
Frontier
Deal found 4/14![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 4/17. 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.
목 5/712:08 pm
LAX
- PDX
1 stop8h 43m
Frontier
Deal found 4/17![Frontier logo]()
$96
This Frontier deal was found by Cheapflights users on 4/16. 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.
토 5/306:30 am
LAX
- PDX
1 stop10h 16m
Frontier
Deal found 4/16![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
목 5/146:30 am
LAX
- PDX
1 stop14h 21m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$98
This Super.com deal was found by Cheapflights users on 4/16. 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.
목 4/309:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Deal found 4/16![Frontier logo]()
$99
This American Airlines deal was found by Cheapflights users on 4/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
수 7/228:20 pm
LAX
- PDX
Nonstop2h 29m
American Airlines
Deal found 4/14![American Airlines logo]()
$100
This Super.com deal was found by Cheapflights users on 4/15. 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.
금 5/19:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Deal found 4/15![Frontier logo]()
$105
This Trip.com deal was found by Cheapflights users on 4/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
금 5/89:20 am
LAX
- PDX
Nonstop2h 30m
Frontier
Deal found 4/18![Frontier logo]()
$108
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 4월 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $147 (Kiwi.com) |
One-way from | $93 (Super.com) |
Popular in | November |
Cheapest in | January |
Average price | $247 |
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 4월 19, 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 - PDX
LAXPDX
Los Angeles
화 6/9
2:19 pm-4:42 pm
Nonstop2h 23m
Portland
수 6/24
8:19 pm-10:51 pm
Nonstop2h 32m
$198
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
토 8/15
8:21 pm-12:47 am
1 stop4h 26m
Portland
토 8/22
11:09 am-3:35 pm
1 stop4h 26m
$219
Quickest round-trip
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
토 7/18
2:19 pm-4:34 pm
Nonstop2h 15m
Portland
금 7/24
8:19 pm-10:49 pm
Nonstop2h 30m
$229
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
화 5/26
7:15 am-9:47 am
Nonstop2h 32m
Portland
일 6/7
10:30 am-1:08 pm
Nonstop2h 38m
$247
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
일 6/21
7:00 am-9:21 am
Nonstop2h 21m
Portland
토 6/27
9:27 pm-11:56 pm
Nonstop2h 29m
$248
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
월 5/18
8:15 pm-12:33 am
1 stop4h 18m
Portland
토 5/23
8:35 am-3:35 pm
1 stop7h 00m
$256
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
수 5/13
1:39 pm-9:28 pm
1 stop7h 49m
Portland
일 5/17
5:00 am-10:56 am
1 stop5h 56m
$257
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
목 6/18
8:00 pm-10:22 pm
Nonstop2h 22m
Portland
월 6/22
6:35 am-9:05 am
Nonstop2h 30m
$259
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
화 5/12
3:35 pm-11:10 pm
2 stops7h 35m
Portland
토 5/16
5:30 am-9:15 am
1 stop3h 45m
$262
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
화 7/14
8:05 pm-12:50 am
1 stop4h 45m
Portland
화 7/21
5:15 am-10:34 am
1 stop5h 19m
$262
Showing 1-10 of 23 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
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 April 17, 2026.
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 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 4월 19, 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 afternoon tend to be the most expensive. A flight at noon could potentially save you up to 11% 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 April 18, 2026.
Travelers seeking maximum savings on their Riverside to Portland flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday 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 4월 19, 2026.
The most flights from R1V to PDX are scheduled on a Saturday (54 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (22 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 4월 19, 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.
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Food
7.0
Crew
8.5
Overall
7.9
Boarding
8.1
Entertainment
7.0
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
Vancouver
Lincoln City
Longview
Lake Oswego
Hillsboro
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
Pacific City
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.
Complete your trip
Complete your trip to Portland by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Riverside to Portland by cabin class
Find flights from Riverside to Portland, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Riverside and Portland flights
Browse other Riverside and Portland flight options. Last updated on 4월 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 4월 19, 2026.
Riverside to Portland flights
Consider these flights traveling from Riverside to Portland.
Top 9 airlines flying from Riverside to Portland
Discover the top 9 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 4월 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$160 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$302 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$260 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$93 | Average$167 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$282 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$139 | Average$285 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$268 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$168 | Average$400 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$176 | Average$211 | FlexibilityNo cancel fee | On-time62% |