$118+ 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
Aug 22 — Aug 291
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 July 23, 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 July 23, 2026.
This Justfly.com deal was found by Cheapflights users on 7/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Mon 8/246:17 pm
PDX
- LAX
1 stop4h 22m
Frontier
Deal found 7/22![Frontier logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Fri 8/149:15 am
LAX
- PDX
Nonstop2h 20m
Multiple Airlines
Tue 8/252:42 pm
PDX
- LAX
1 stop4h 25m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$207
This Frontier deal was found by Cheapflights users on 7/23. 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.
Sat 8/299:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Mon 8/315:56 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/23![Frontier logo]()
$208
This Frontier deal was found by Cheapflights users on 7/21. 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 8/139:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Mon 8/175:36 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/21![Frontier logo]()
$209
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/28:33 am
LAX
- PDX
1 stop5h 13m
Alaska Airlines
Wed 9/95:55 pm
PDX
- LAX
Nonstop2h 39m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$210
This Southwest deal was found by Cheapflights users on 7/20. 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.
Wed 8/264:15 pm
LAX
- PDX
1 stop6h 05m
Southwest
Tue 9/157:50 am
PDX
- LAX
1 stop3h 45m
Southwest
Deal found 7/20![Southwest logo]()
$212
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/139:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sun 8/166:49 pm
PDX
- LAX
1 stop25h 25m
Frontier
Deal found 7/22![Frontier logo]()
$213
This Priceline deal was found by Cheapflights users on 7/22. 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.
Thu 10/2912:20 pm
LAX
- PDX
Nonstop2h 32m
Frontier
Thu 10/295:30 pm
PDX
- LAX
Nonstop2h 26m
Frontier
Deal found 7/22![Frontier logo]()
$214
This Super.com deal was found by Cheapflights users on 7/19. 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.
Sun 8/169:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sun 8/235:56 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/19![Frontier logo]()
$215
This Frontier deal was found by Cheapflights users on 7/22. 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.
Sat 8/19:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sat 8/15:36 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/22![Frontier logo]()
$216
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 July 23, 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 July 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 9/92:15 pm
LAX
- PDX
Nonstop2h 21m
Alaska Airlines
Tue 9/1510:37 am
PDX
- LAX
1 stop8h 30m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$210
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:20 am
LAX
- PDX
1 stop6h 30m
Southwest
Sat 8/291:30 pm
PDX
- LAX
1 stop6h 45m
Southwest
Deal found 7/18![Southwest logo]()
$217
This United Airlines deal was found by Cheapflights users on 7/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:21 pm
LAX
- PDX
1 stop4h 09m
United Airlines
Sun 8/307:00 am
PDX
- LAX
1 stop5h 01m
United Airlines
Deal found 7/18![United Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 7/19. 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.
Fri 9/47:35 am
LAX
- PDX
Nonstop2h 16m
Delta
Wed 9/91:49 pm
PDX
- LAX
Nonstop2h 20m
Delta
Deal found 7/19![Delta logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/19. 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 10/139:30 am
LAX
- PDX
1 stop7h 20m
Alaska Airlines
Sat 10/1710:48 am
PDX
- LAX
1 stop7h 36m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 7/20. 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.
Wed 8/193:15 pm
LAX
- PDX
1 stop5h 25m
Southwest
Thu 8/205:35 am
PDX
- LAX
1 stop6h 15m
Southwest
Deal found 7/20![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 8/292:56 pm
LAX
- PDX
1 stop5h 55m
Alaska Airlines
Sat 9/52:32 pm
PDX
- LAX
1 stop4h 43m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/20. 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.
Fri 8/216:10 pm
LAX
- PDX
1 stop3h 35m
Southwest
Thu 8/275:45 am
PDX
- LAX
1 stop7h 05m
Southwest
Deal found 7/20![Southwest logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 7/19. 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 8/292:56 pm
LAX
- PDX
1 stop5h 55m
Alaska Airlines
Mon 8/315:53 pm
PDX
- LAX
1 stop4h 36m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$237
This Southwest deal was found by Cheapflights users on 7/18. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:20 am
LAX
- PDX
2 stops8h 00m
Southwest
Mon 8/315:35 am
PDX
- LAX
1 stop6h 15m
Southwest
Deal found 7/18![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 10/110:50 am
LAX
- PDX
1 stop6h 00m
Alaska Airlines
Mon 10/511:13 am
PDX
- LAX
1 stop4h 06m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 7/20. 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.
Thu 9/1011:20 am
LAX
- PDX
2 stops8h 00m
Southwest
Mon 9/145:15 am
PDX
- LAX
1 stop5h 30m
Southwest
Deal found 7/20![Southwest logo]()
$262
Last-minute flights from Riverside to PortlandDiscover last-minute flight deals from Riverside to Portland. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Portland. Data last updated July 23, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/22. 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.
Sat 8/19:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sat 8/15:36 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/22![Frontier logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/1210:03 am
LAX
- PDX
1 stop6h 44m
Multiple Airlines
Fri 8/145:36 pm
PDX
- LAX
Nonstop2h 28m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$210
This Frontier deal was found by Cheapflights users on 7/21. 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 8/139:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Mon 8/175:36 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/21![Frontier logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/139:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sun 8/166:49 pm
PDX
- LAX
1 stop25h 25m
Frontier
Deal found 7/22![Frontier logo]()
$213
This Frontier deal was found by Cheapflights users on 7/23. 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 8/139:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Sat 8/155:36 pm
PDX
- LAX
Nonstop2h 28m
Frontier
Deal found 7/23![Frontier logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Fri 8/149:15 am
LAX
- PDX
Nonstop2h 20m
Multiple Airlines
Tue 8/252:42 pm
PDX
- LAX
1 stop4h 25m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sat 8/159:15 am
LAX
- PDX
Nonstop2h 20m
Multiple Airlines
Tue 8/187:19 am
PDX
- LAX
1 stop4h 25m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/198:33 am
LAX
- PDX
1 stop8h 17m
Multiple Airlines
Fri 8/215:56 pm
PDX
- LAX
Nonstop2h 28m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Fri 8/219:15 am
LAX
- PDX
Nonstop2h 20m
Multiple Airlines
Wed 8/261:53 pm
PDX
- LAX
Nonstop2h 29m
Multiple Airlines
Deal found 7/22![Multiple Airlines logo]()
$211
This Southwest deal was found by Cheapflights users on 7/20. 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.
Wed 8/264:15 pm
LAX
- PDX
1 stop6h 05m
Southwest
Tue 9/157:50 am
PDX
- LAX
1 stop3h 45m
Southwest
Deal found 7/20![Southwest logo]()
$212
This Frontier deal was found by Cheapflights users on 7/23. 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.
Sat 8/299:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Mon 8/316:17 pm
PDX
- LAX
1 stop4h 22m
Frontier
Deal found 7/23![Frontier logo]()
$208
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 July 23, 2026.
Search for one-way flight options from Riverside to Portland. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:51 pm
LAX
- PDX
1 stop19h 44m
Frontier
Deal found 7/18![Frontier logo]()
$118
This iWofly deal was found by Cheapflights users on 7/22. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:00 am
LAX
- PDX
Nonstop2h 21m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/249:09 pm
LAX
- PDX
1 stop20h 02m
Frontier
Deal found 7/20![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 9/36:55 am
LAX
- PDX
1 stop5h 57m
Frontier
Deal found 7/22![Frontier logo]()
$122
This Frontier deal was found by Cheapflights users on 7/23. 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.
Fri 8/149:15 am
LAX
- PDX
Nonstop2h 20m
Frontier
Deal found 7/23![Frontier logo]()
$123
This Southwest deal was found by Cheapflights users on 7/22. 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.
Fri 8/286:00 pm
LAX
- PDX
1 stop3h 35m
Southwest
Deal found 7/22![Southwest logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Tue 10/203:15 pm
LAX
- PDX
2 stops25h 20m
Frontier
Deal found 7/23![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 7/20. 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 8/1110:00 am
LAX
- PDX
1 stop6h 31m
Frontier
Deal found 7/20![Frontier logo]()
$126
This Alaska Airlines deal was found by Cheapflights users on 7/22. 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 8/188:20 am
LAX
- PDX
1 stop12h 11m
Alaska Airlines
Deal found 7/22![Alaska Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Fri 9/112:39 pm
LAX
- PDX
2 stops25h 56m
Frontier
Deal found 7/19![Frontier logo]()
$128
This Southwest deal was found by Cheapflights users on 7/20. 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.
Thu 8/201:55 pm
LAX
- PDX
1 stop5h 05m
Southwest
Deal found 7/20![Southwest logo]()
$129
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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $203 (Frontier) |
One-way from | $118 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $294 |
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 July 23, 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
Wed 9/9
2:15 pm-4:36 pm
Nonstop2h 21m
Portland
Tue 9/15
10:37 am-7:07 pm
1 stop8h 30m
$210
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 8/29
5:20 am-11:50 am
1 stop6h 30m
Portland
Sat 8/29
1:30 pm-8:15 pm
1 stop6h 45m
$217
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Tue 10/13
9:30 am-4:50 pm
1 stop7h 20m
Portland
Sat 10/17
10:48 am-6:24 pm
1 stop7h 36m
$217
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 8/19
3:15 pm-8:40 pm
1 stop5h 25m
Portland
Thu 8/20
5:35 am-11:50 am
1 stop6h 15m
$237
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 8/29
2:56 pm-8:51 pm
1 stop5h 55m
Portland
Sat 9/5
2:32 pm-7:15 pm
1 stop4h 43m
$237
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 8/29
2:56 pm-8:51 pm
1 stop5h 55m
Portland
Mon 8/31
5:53 pm-10:29 pm
1 stop4h 36m
$237
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Fri 8/21
6:10 pm-9:45 pm
1 stop3h 35m
Portland
Thu 8/27
5:45 am-12:50 pm
1 stop7h 05m
$252
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Thu 8/27
8:21 pm-12:30 am
1 stop4h 09m
Portland
Sun 8/30
7:00 am-12:01 pm
1 stop5h 01m
$257
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Thu 10/1
10:50 am-4:50 pm
1 stop6h 00m
Portland
Mon 10/5
11:13 am-3:19 pm
1 stop4h 06m
$257
Quickest round-trip
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Fri 9/4
7:35 am-9:51 am
Nonstop2h 16m
Portland
Wed 9/9
1:49 pm-4:09 pm
Nonstop2h 20m
$262
Showing 1-10 of 24 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 July 23, 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 in the evening could potentially save you up to 29% 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 July 23, 2026.
The most flights from R1V to PDX are scheduled on a Thursday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (29 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 $212 and $346 in August.The cheapest round-trip price found within the last 5 days was $203 on Frontier (Aug 30-Aug 31).
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 July 18, 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. Saturday at noon 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 July 23, 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.
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Crew
8.5
Boarding
8.1
Comfort
7.8
Food
7.0
Entertainment
7.0
Overall
7.9
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
Vancouver
Longview
Lake Oswego
Hillsboro
Kelso
Clackamas
Troutdale
Cannon Beach
Long Beach
McMinnville
The Dalles
Wilsonville
Depoe Bay
Stevenson
Tillamook
Astoria
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.
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 July 23, 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 July 23, 2026.
Riverside to Portland flights
Consider these flights traveling from Riverside to Portland.
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 2,558,603 searches. Data last updated July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$74 | Average$187 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$279 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$81 | Average$268 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$157 | Average$302 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$163 | Average$319 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$166 | Average$311 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$168 | Average$409 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$186 | Average$253 | FlexibilityNo cancel fee | On-time62% |