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Lewiston

$373+ Cheap flights from Riverside, CA to Lewiston, ID (LWS)

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 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LWS
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Riverside to Lewiston

Keep the following information in mind while searching for Riverside to Lewiston flight deals. Data was last updated September 17, 2025.

Round-trip from

$722
(Delta)

One-way from

$373
(Delta)

Popular in

February

Cheapest in

January

Average price

$353
From Riverside to Lewiston Nez Perce Rgnl
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One-way flight from Riverside to Lewiston Nez Perce Rgnl
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Highest demand for flights based on searches. 14% potential increase in price ($89 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Riverside to Lewiston

Cheapest flights from Riverside to Lewiston
Explore the most affordable flight options available from Riverside to Lewiston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Delta deal was found by Cheapflights users on 9/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:45 amLAX - LWS
1 stop6h 02mDelta
Sat 11/297:00 amLWS - LAX
1 stop8h 10mDelta
Deal found 9/16$722

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside to Lewiston 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 September 17, 2025.
Use the filters below to find and compare flights from Riverside to Lewiston that are best for you.

Fly from

Riverside

Fly to

Lewiston

Route

Depart

Return

Price

Los AngelesLewiston

LAX - LWS

LAXLWS

Los Angeles

Fri 11/21

5:45 am-11:47 am

1 stop6h 02m

Lewiston Nez Perce Rgnl

Sat 11/29

7:00 am-3:10 pm

1 stop8h 10m

$722

Los AngelesLewiston

LAX - LWS

LAXLWS

Los Angeles

Sat 10/4

2:10 pm-9:05 pm

1 stop6h 55m

$373

Los AngelesLewiston

LAX - LWS

LAXLWS

Los Angeles

Fri 10/3

2:10 pm-9:05 pm

1 stop6h 55m

$373

Los AngelesLewiston

LAX - LWS

LAXLWS

Los Angeles

Thu 10/2

2:10 pm-9:05 pm

1 stop6h 55m

$404

Los AngelesLewiston

LAX - LWS

LAXLWS

Los Angeles

Sat 9/27

7:00 am-1:22 pm

1 stop6h 22m

$463

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Best time to book a flight from Riverside to Lewiston

Have a flexible travel schedule? Discover the best time to fly to Lewiston 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 Lewiston

What is the cheapest month to book a flight from Riverside to Lewiston, Idaho?

Currently, February is the cheapest month in which you can book a flight from Riverside to Lewiston, Idaho (average of $278). Flying from Riverside to Lewiston, Idaho in May is currently the most expensive (average of $524). 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.

Reviews of airlines servicing Lewiston

Get insights into the airlines that provide service to Lewiston. 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 Lewiston. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from Riverside to Lewiston, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Riverside to Lewiston. 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 Lewiston from Riverside?

    For a flight from Riverside to Lewiston, you will be flying into Nez Perce Rgnl. Lewiston Nez Perce Rgnl (LWS) is just 1.9 mi from the center of the city. Nez Perce Rgnl is the only Lewiston airport and it handles 0 inbound flights from Riverside per day. 1 airline has flights to Lewiston Nez Perce Rgnl from Riverside on a regular basis.

  • How long is the flight from Riverside to Lewiston, Idaho?

    Airlines like Delta fly from Riverside to Lewiston, Idaho in about 6h 02m. The time it takes to get you to your destination can typically vary by up to . The distance from Riverside to Lewiston, Idaho is about 862 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Riverside to Lewiston 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 Lewiston, Idaho?

    Currently, February is the cheapest month in which you can book a flight from Riverside to Lewiston, Idaho (average of $278). Flying from Riverside to Lewiston, Idaho in May is currently the most expensive (average of $524). 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.

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Top airline flying from Riverside to Lewiston

Discover the top airline that operate flights from Riverside to Lewiston. 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$238Average$488FlexibilityNo cancel feeOn-timeN/A

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