$68+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
Apr 1 — Apr 81
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 May or January, booked 73 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 March 2, 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 March 2, 2026.
This Super.com deal was found by Cheapflights users on 2/26. 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 4/199:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Thu 4/232:54 pm
PDX
- LAX
Nonstop2h 30m
Frontier
Deal found 2/26![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 2/27. 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 4/179:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Mon 4/209:54 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/27![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/144:17 pm
LAX
- PDX
1 stop19h 21m
Frontier
Thu 4/2311:48 am
PDX
- LAX
1 stop12h 23m
Frontier
Deal found 2/27![Frontier logo]()
$129
This Frontier deal was found by Cheapflights users on 2/26. 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 9/411:43 am
LAX
- PDX
Nonstop2h 29m
Frontier
Mon 9/712:13 pm
PDX
- LAX
Nonstop2h 32m
Frontier
Deal found 2/26![Frontier logo]()
$130
This Super.com deal was found by Cheapflights users on 2/26. 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 3/129:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Sat 3/1410:24 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/26![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 3/114:07 pm
LAX
- PDX
1 stop16h 51m
Multiple Airlines
Thu 3/2610:08 am
PDX
- LAX
Nonstop2h 25m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 3/149:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Wed 3/259:53 am
PDX
- LAX
1 stop9h 37m
Frontier
Deal found 2/27![Frontier logo]()
$135
This Jetabroad deal was found by Cheapflights users on 2/26. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Sun 4/199:54 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/26![Frontier logo]()
$136
This Delta deal was found by Cheapflights users on 3/1. 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.
Wed 4/154:55 pm
LAX
- PDX
Nonstop2h 22m
Delta
Tue 4/214:35 pm
PDX
- LAX
Nonstop2h 21m
Delta
Deal found 3/1![Delta logo]()
$137
This CheapOair deal was found by Cheapflights users on 2/26. 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.
Wed 5/209:00 am
LAX
- PDX
Nonstop2h 33m
Alaska Airlines
Wed 5/275:40 pm
PDX
- LAX
Nonstop2h 34m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$138
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 March 2, 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 March 2, 2026.
This Delta deal was found by Cheapflights users on 2/27. 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 4/148:20 pm
LAX
- PDX
Nonstop2h 22m
Delta
Tue 4/218:15 pm
PDX
- LAX
Nonstop2h 26m
Delta
Deal found 2/27![Delta logo]()
$137
This Southwest deal was found by Cheapflights users on 2/28. 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 5/95:20 am
LAX
- PDX
1 stop6h 40m
Southwest
Sun 5/105:50 pm
PDX
- LAX
1 stop6h 20m
Southwest
Deal found 2/28![Southwest logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 2/27. 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 4/84:15 pm
LAX
- PDX
1 stop4h 17m
Alaska Airlines
Mon 4/1311:15 am
PDX
- LAX
1 stop8h 40m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 2/27. 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 4/257:40 am
LAX
- PDX
Nonstop2h 24m
Delta
Tue 5/125:18 pm
PDX
- LAX
Nonstop2h 26m
Delta
Deal found 2/27![Delta logo]()
$137
This Delta deal was found by Cheapflights users on 2/27. 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.
Mon 4/67:55 pm
LAX
- PDX
Nonstop2h 28m
Delta
Sat 4/116:15 am
PDX
- LAX
Nonstop2h 30m
Delta
Deal found 2/27![Delta logo]()
$167
This Delta deal was found by Cheapflights users on 2/27. 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.
Wed 4/299:45 am
LAX
- PDX
Nonstop2h 23m
Delta
Mon 5/115:18 pm
PDX
- LAX
Nonstop2h 26m
Delta
Deal found 2/27![Delta logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 2/26. 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.
Mon 4/69:48 pm
LAX
- PDX
1 stop12h 02m
Alaska Airlines
Sat 4/117:24 am
PDX
- LAX
1 stop6h 32m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$216
This Southwest deal was found by Cheapflights users on 3/1. 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 4/166:10 am
LAX
- PDX
1 stop4h 50m
Southwest
Sat 4/186:00 am
PDX
- LAX
2 stops9h 15m
Southwest
Deal found 3/1![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 3/1. 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 4/39:22 pm
LAX
- PDX
Nonstop2h 36m
Alaska Airlines
Sun 4/52:30 pm
PDX
- LAX
1 stop17h 59m
Alaska Airlines
Deal found 3/1![Alaska Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 2/27. 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.
Wed 4/87:35 am
LAX
- PDX
Nonstop2h 26m
Delta
Fri 4/107:58 pm
PDX
- LAX
Nonstop2h 36m
Delta
Deal found 2/27![Delta logo]()
$207
This Delta deal was found by Cheapflights users on 2/26. 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.
Wed 3/112:20 pm
LAX
- PDX
Nonstop2h 23m
Delta
Sun 3/157:58 pm
PDX
- LAX
Nonstop2h 36m
Delta
Deal found 2/26![Delta logo]()
$268
Last-minute flights from Riverside to PortlandDiscover last-minute flight deals from Riverside to Portland. Data last updated March 2, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Portland. Data last updated March 2, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 2/26. 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 3/99:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Thu 3/129:53 am
PDX
- LAX
Nonstop2h 26m
Frontier
Deal found 2/26![Frontier logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 3/114:07 pm
LAX
- PDX
1 stop16h 51m
Multiple Airlines
Thu 3/2610:08 am
PDX
- LAX
Nonstop2h 25m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$133
This Super.com deal was found by Cheapflights users on 2/26. 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 3/129:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Sat 3/1410:24 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/26![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 3/149:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Wed 3/259:53 am
PDX
- LAX
1 stop9h 37m
Frontier
Deal found 2/27![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 3/2. 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 3/199:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Mon 3/3010:08 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 3/2![Frontier logo]()
$128
This Super.com deal was found by Cheapflights users on 3/1. 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 3/206:21 pm
LAX
- PDX
Nonstop2h 27m
Frontier
Fri 3/2710:08 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 3/1![Frontier logo]()
$142
This Super.com deal was found by Cheapflights users on 2/27. 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.
Sat 3/219:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Sat 3/2810:24 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/27![Frontier logo]()
$130
This Frontier deal was found by Cheapflights users on 2/28. 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 3/219:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Thu 3/2610:08 am
PDX
- LAX
Nonstop2h 25m
Frontier
Deal found 2/28![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 3/247:00 am
LAX
- PDX
Nonstop2h 35m
Multiple Airlines
Sat 3/2810:24 am
PDX
- LAX
Nonstop2h 25m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$129
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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 3/247:00 am
LAX
- PDX
Nonstop2h 35m
Alaska Airlines
Wed 4/110:31 am
PDX
- LAX
Nonstop2h 32m
Alaska Airlines
Deal found 3/2![Alaska Airlines logo]()
$137
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 March 2, 2026.
Search for one-way flight options from Riverside to Portland. Find affordable one-way fares based on user searches. Data last updated March 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 3/186:30 pm
LAX
- PDX
1 stop14h 28m
Frontier
Deal found 2/26![Frontier logo]()
$68
This Super.com deal was found by Cheapflights users on 2/28. 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.
Sat 3/149:20 am
LAX
- PDX
Nonstop2h 32m
Frontier
Deal found 2/28![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 5/212:24 pm
LAX
- PDX
1 stop21h 56m
Frontier
Deal found 3/1![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 4/256:15 am
LAX
- PDX
1 stop28h 05m
Frontier
Deal found 3/1![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 4/166:09 pm
LAX
- PDX
1 stop14h 50m
Frontier
Deal found 3/2![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 5/119:20 am
LAX
- PDX
Nonstop2h 37m
Frontier
Deal found 3/1![Frontier logo]()
$73
This Frontier deal was found by Cheapflights users on 2/26. 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 4/99:13 am
LAX
- PDX
Nonstop2h 37m
Frontier
Deal found 2/26![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/235:25 pm
LAX
- PDX
1 stop15h 34m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 3/1. 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 4/293:49 pm
LAX
- PDX
1 stop27h 07m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 4/26:15 am
LAX
- PDX
1 stop28h 48m
Frontier
Deal found 2/27![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 2/26. 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 5/179:20 am
LAX
- PDX
Nonstop2h 37m
Frontier
Deal found 2/26![Frontier logo]()
$78
This CheapOair deal was found by Cheapflights users on 2/26. 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.
Wed 5/133:59 pm
LAX
- PDX
1 stop7h 05m
Alaska Airlines
Deal found 2/26![Alaska Airlines logo]()
$79
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 March 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $127 (Delta) |
One-way from | $68 (Kiwi.com) |
Popular in | November |
Cheapest in | May |
Average price | $207 |
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 March 2, 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
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Tue 4/14
8:20 pm-10:42 pm
Nonstop2h 22m
Portland
Tue 4/21
8:15 pm-10:41 pm
Nonstop2h 26m
$137
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 4/25
7:40 am-10:04 am
Nonstop2h 24m
Portland
Tue 5/12
5:18 pm-7:44 pm
Nonstop2h 26m
$137
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Mon 4/6
7:55 pm-10:23 pm
Nonstop2h 28m
Portland
Sat 4/11
6:15 am-8:45 am
Nonstop2h 30m
$167
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 4/29
9:45 am-12:08 pm
Nonstop2h 23m
Portland
Mon 5/11
5:18 pm-7:44 pm
Nonstop2h 26m
$167
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Sat 5/9
5:20 am-12:00 pm
1 stop6h 40m
Portland
Sun 5/10
5:50 pm-12:10 am
1 stop6h 20m
$187
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 4/8
4:15 pm-8:32 pm
1 stop4h 17m
Portland
Mon 4/13
11:15 am-7:55 pm
1 stop8h 40m
$197
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Wed 4/8
7:35 am-10:01 am
Nonstop2h 26m
Portland
Fri 4/10
7:58 pm-10:34 pm
Nonstop2h 36m
$207
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Mon 4/6
9:48 pm-9:50 am
1 stop12h 02m
Portland
Sat 4/11
7:24 am-1:56 pm
1 stop6h 32m
$216
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Fri 4/3
9:22 pm-11:58 pm
Nonstop2h 36m
Portland
Sun 4/5
2:30 pm-8:29 am
1 stop17h 59m
$250
Los AngelesPortland
LAX - PDX
LAXPDX
Los Angeles
Thu 4/16
6:10 am-11:00 am
1 stop4h 50m
Portland
Sat 4/18
6:00 am-3:15 pm
2 stops9h 15m
$267
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 February 27, 2026.
Booking 73 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Riverside to Portland?
Currently, February is the cheapest month in which you can book a flight from Riverside to Portland (average of $52). Flying from Riverside to Portland in December is currently the most expensive (average of $98). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from R1V to PDX?
Find hourly flight availability from Riverside to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 2, 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 9% 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 February 21, 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 March 2, 2026.
The most flights from R1V to PDX are scheduled on a Monday (63 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).
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 March 2, 2026.
Read through reviews of airlines operating flights from Riverside to Portland, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Food
7.1
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Jan 2026
STS - LAX
Related info for your journey
Find useful and relevant information for your journey from Riverside to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsVancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Hillsboro
Troutdale
Beaverton
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Depoe Bay
Wilsonville
Stevenson
Tillamook
Pacific City
Astoria
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Alternative routes for Riverside to Portland
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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 March 2, 2026.
Popular flight searches
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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 March 2, 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 March 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$157 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$78 | Average$269 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$88 | Average$249 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$93 | Average$206 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$93 | Average$162 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$286 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$139 | Average$278 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$168 | Average$395 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$191 | Average$266 | FlexibilityNo cancel fee | On-time69% |