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$73+ 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — PDX
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Portland are usually found in January or February, booked 59 days in advance, depart on a Saturday or Thursday and return on a Thursday

Find flight deals from Riverside to Portland

Cheapest flights from Riverside to Portland
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 October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/26. 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.
Sat 11/159:51 amLAX - PDX
Nonstop2h 32mMultiple Airlines
Sun 11/167:57 pmPDX - LAX
1 stop13h 47mMultiple Airlines
Deal found 10/26$128
This CheapOair deal was found by Cheapflights users on 10/25. 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.
Sat 11/152:48 pmLAX - PDX
1 stop21h 08mFrontier
Mon 11/1710:03 amPDX - LAX
1 stop5h 19mFrontier
Deal found 10/25$130
This Priceline deal was found by Cheapflights users on 10/25. 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 12/189:07 amLAX - PDX
Nonstop2h 30mFrontier
Sat 12/205:39 pmPDX - LAX
Nonstop2h 24mFrontier
Deal found 10/25$131
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/82:48 pmLAX - PDX
1 stop21h 08mFrontier
Mon 11/242:13 pmPDX - LAX
Nonstop2h 25mFrontier
Deal found 10/25$132
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/149:51 amLAX - PDX
Nonstop2h 32mMultiple Airlines
Sun 11/167:57 pmPDX - LAX
1 stop13h 47mMultiple Airlines
Deal found 10/25$134
This CheapOair deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/52:00 pmLAX - PDX
Nonstop2h 37mFrontier
Mon 12/89:31 amPDX - LAX
1 stop10h 34mFrontier
Deal found 10/25$136
This Kiwi.com deal was found by Cheapflights users on 10/24. 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 12/269:15 amLAX - PDX
1 stop10h 35mFrontier
Tue 12/305:39 pmPDX - LAX
Nonstop2h 24mFrontier
Deal found 10/24$137
This CheapOair deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:51 amLAX - PDX
Nonstop2h 32mFrontier
Sun 11/167:57 pmPDX - LAX
1 stop16h 12mFrontier
Deal found 10/25$139
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:07 pmLAX - PDX
Nonstop2h 37mFrontier
Sun 12/285:39 pmPDX - LAX
Nonstop2h 24mFrontier
Deal found 10/27$140
This Kiwi.com deal was found by Cheapflights users on 10/25. 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 11/1410:21 amLAX - PDX
1 stop9h 38mFrontier
Mon 11/1710:03 amPDX - LAX
1 stop5h 19mFrontier
Deal found 10/25$142

Cheap flight deals from Riverside to Portland

Keep the following information in mind while searching for Riverside to Portland flight deals. Data was last updated October 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$128
(Kiwi.com)

One-way from

$73
(Priceline)

Popular in

November

Cheapest in

January

Average price

$203
Provider with most accurate pricing for Los Angeles-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Portland flights.
Search Deals
From Riverside to Portland
Search Deals
One-way flight from Riverside to Portland
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 27, 2025.
Use the filters below to find and compare flights from Riverside to Portland that are best for you.

Fly from

Riverside

Fly to

Portland

Route

Depart

Return

Price

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Wed 12/3

8:15 am-1:30 pm

1 stop5h 15m

Portland

Wed 12/3

3:55 pm-8:00 pm

1 stop4h 05m

$159

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Wed 12/24

7:24 pm-10:01 pm

Nonstop2h 37m

Portland

Sat 1/3

5:48 pm-8:25 pm

Nonstop2h 37m

$177

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Sun 1/18

7:25 am-1:25 pm

1 stop6h 00m

Portland

Mon 1/19

5:50 am-12:05 pm

1 stop6h 15m

$193

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Tue 12/2

8:20 pm-12:37 am

1 stop4h 17m

Portland

Sat 12/6

1:00 pm-5:46 pm

1 stop4h 46m

$197

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Mon 12/22

7:55 pm-10:24 pm

Nonstop2h 29m

Portland

Mon 12/29

5:48 pm-8:25 pm

Nonstop2h 37m

$197

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Sun 12/21

9:25 pm-12:02 am

Nonstop2h 37m

Portland

Mon 12/29

9:45 pm-12:22 am

Nonstop2h 37m

$197

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Fri 12/19

9:25 pm-12:02 am

Nonstop2h 37m

Portland

Mon 12/22

5:48 pm-8:25 pm

Nonstop2h 37m

$197

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Mon 12/22

9:32 pm-12:09 am

Nonstop2h 37m

Portland

Fri 12/26

9:45 pm-12:22 am

Nonstop2h 37m

$197

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Tue 12/2

6:52 pm-10:52 pm

1 stop4h 00m

Portland

Fri 12/5

1:00 pm-7:21 pm

1 stop6h 21m

$207

Los AngelesPortland

LAX - PDX

LAXPDX

Los Angeles

Thu 1/15

2:56 pm-8:47 pm

1 stop5h 51m

Portland

Mon 1/19

5:35 pm-10:59 pm

1 stop5h 24m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 19 results
1
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Best time to book a flight from Riverside to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Riverside with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Riverside to Portland

How far ahead should I book a flight from Riverside to Portland?

Use this chart to determine the optimal time to book a round-trip flight from Riverside to Portland. Price data was last updated on October 24, 2025.

Booking 59 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Portland. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Riverside to Portland?

Currently, March is the cheapest month in which you can book a flight from Riverside to Portland (average of $42). Flying from Riverside to Portland in July is currently the most expensive (average of $89). 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 October 27, 2025.

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 evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 13% 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 October 26, 2025.

Travelers seeking maximum savings on their Riverside to Portland flight should consider departing on Thursday afternoons when fares are most often at their lowest. 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 October 27, 2025.

The most flights from R1V to PDX are scheduled on a Monday (70 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (24 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 October 27, 2025.
Read through reviews of airlines operating flights from Riverside to Portland, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,193 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
7.9
Good
7,996 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,792 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
11,031 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,193 reviews

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Overall

8.0

Entertainment

7.0

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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.

  • What airport do you fly into for flights to Portland from Riverside?

    For a flight from Riverside to Portland, you will be flying into Portland. Portland (PDX) is just 6.0 mi from the center of the city. Portland is the only Portland airport and it handles 36 inbound flights from Riverside per day. 8 airlines have flights to Portland from Riverside on a regular basis.

  • How popular is this Riverside to Portland flight route?

    This flight path from Riverside to Portland was viewed by 118 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Riverside to Portland?

    Departing from Riverside to Portland will take you 2h 37m. There are 834 mi between Riverside and Portland. This flight may include one or multiple stops.

  • What are the most reliable airlines from Riverside to Portland?

    Consider Icelandair (100%), KLM (100%) or Iberia (97%) when booking your flight. These represent the most reliable airlines when flying from Riverside to Portland.

  • What are the cheapest flights from Riverside to Portland?

    On average you can expect to pay $587 for a flight from Riverside to Portland. The cheapest flight overall is $71 while the most popular route, (Los Angeles - Portland) is currently priced at $110.

  • Can I find deals for flights from Riverside to Portland that include hotel bookings?

    Yes. In addition to deals on Riverside to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Riverside to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Riverside to Portland.

  • Can I find deals for business class flights from Riverside to Portland?

    Yes. Cheapflights offers flight deals from Riverside to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Riverside to Portland?

    Currently, March is the cheapest month in which you can book a flight from Riverside to Portland (average of $42). Flying from Riverside to Portland in July is currently the most expensive (average of $89). 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.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Lake Oswego
Beaverton
McMinnville
Hillsboro
Cannon Beach
Long Beach
Longview
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Pacific City
Gresham
Tillamook
Troutdale

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Top 8 airlines flying from Riverside to Portland

Discover the top 8 airlines that operate flights from Riverside to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$30Average$134FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$88Average$263FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$93Average$169FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$113Average$275FlexibilityNo cancel feeOn-time75%
DeltaCheapest$118Average$254FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$271FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$143Average$277FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$168Average$383FlexibilityNo cancel feeOn-time71%

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