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Riverside

$88+ Cheap flights from Seattle (SEA) to Riverside, CA

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 8/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Jul 8 — Jul 151
Tue 7/8
Tue 7/15
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Riverside are usually found in January or September, booked 30 days in advance, depart on a Friday or Thursday and return on a Saturday

Cheap flight deals from Seattle to Riverside

Keep the following information in mind while searching for Seattle to Riverside flight deals. Data was last updated July 3, 2025.

Round-trip from

$144
(Kiwi.com)

One-way from

$88
(FlightHub)

Popular in

June

Cheapest in

January

Average price

$237
From Seattle/Tacoma Intl to Riverside
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One-way flight from Seattle/Tacoma Intl to Riverside
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Highest demand for flights based on searches. 11% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Seattle to Riverside

Cheapest flights from Seattle to Riverside
Explore the most affordable flight options available from Seattle to Riverside. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/1. 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 7/215:30 pmSEA - LAX
1 stop5h 20mSpirit Airlines
Tue 7/296:00 amLAX - SEA
1 stop10h 25mSpirit Airlines
Deal found 7/1$144
This Kiwi.com deal was found by Cheapflights users on 7/1. 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.
Fri 7/1810:50 amSEA - LAX
Nonstop2h 52mMultiple Airlines
Wed 7/236:00 amLAX - SEA
1 stop10h 25mMultiple Airlines
Deal found 7/1$145
This Frontier deal was found by Cheapflights users on 7/2. 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.
Sat 10/183:06 pmSEA - LAX
Nonstop2h 49mFrontier
Wed 10/222:15 pmLAX - SEA
1 stop8h 47mFrontier
Deal found 7/2$146
This Kiwi.com deal was found by Cheapflights users on 7/3. 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 8/237:59 pmSEA - LAX
Nonstop2h 49mHawaiian Airlines
Sat 8/306:07 pmLAX - SEA
1 stop4h 22mHawaiian Airlines
Deal found 7/3$155
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2312:15 pmSEA - LAX
Nonstop2h 57mDelta
Sat 8/305:15 pmLAX - SEA
Nonstop2h 44mDelta
Deal found 7/2$157
This Southwest deal was found by Cheapflights users on 7/2. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:10 amSEA - LAX
1 stop4h 40mSouthwest
Tue 8/262:10 pmLAX - SEA
1 stop4h 00mSouthwest
Deal found 7/2$168
This Alaska Airlines deal was found by Cheapflights users on 7/3. 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 8/2311:30 amSEA - LAX
1 stop5h 15mAlaska Airlines
Sat 8/3010:28 pmLAX - SEA
1 stop10h 35mAlaska Airlines
Deal found 7/3$176
This United Airlines deal was found by Cheapflights users on 7/3. 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 7/316:45 amSEA - LAX
Nonstop2h 55mUnited Airlines
Thu 8/77:25 pmLAX - SEA
Nonstop2h 51mUnited Airlines
Deal found 7/3$187

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Riverside 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 3, 2025.
Use the filters below to find and compare flights from Seattle to Riverside that are best for you.

Fly from

Seattle

Fly to

Riverside

Route

Depart

Return

Price

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Mon 7/21

5:30 pm-10:50 pm

1 stop5h 20m

Los Angeles

Tue 7/29

6:00 am-4:25 pm

1 stop10h 25m

$144

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 7/18

10:50 am-1:42 pm

Nonstop2h 52m

Los Angeles

Wed 7/23

6:00 am-4:25 pm

1 stop10h 25m

$145

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 10/18

3:06 pm-5:55 pm

Nonstop2h 49m

Los Angeles

Wed 10/22

2:15 pm-11:02 pm

1 stop8h 47m

$146

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 8/23

7:59 pm-10:48 pm

Nonstop2h 49m

Los Angeles

Sat 8/30

6:07 pm-10:29 pm

1 stop4h 22m

$155

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 8/23

12:15 pm-3:12 pm

Nonstop2h 57m

Los Angeles

Wed 8/27

2:10 pm-4:51 pm

Nonstop2h 41m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 8/23

8:10 am-12:50 pm

1 stop4h 40m

Los Angeles

Tue 8/26

2:10 pm-6:10 pm

1 stop4h 00m

$168

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 8/23

8:04 am-3:01 pm

1 stop6h 57m

Los Angeles

Sat 8/30

10:28 pm-9:03 am

1 stop10h 35m

$176

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Thu 7/31

6:45 am-9:40 am

Nonstop2h 55m

Los Angeles

Thu 8/7

7:25 pm-10:16 pm

Nonstop2h 51m

$187

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 8/10

3:11 pm-12:08 pm

1 stop20h 57m

$88

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Mon 9/22

6:25 am-9:10 am

Nonstop2h 45m

$89

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 16 results
1
2

Best time to book a flight from Seattle to Riverside

Have a flexible travel schedule? Discover the best time to fly to Riverside from Seattle 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 Seattle to Riverside

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

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Riverside. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Riverside, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Riverside (average of $246). Flying from Seattle to Riverside in March is currently the most expensive (average of $326). 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 SEA to R1V?

Find hourly flight availability from Seattle to Riverside. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Riverside as you normally would.

What is the cheapest day to fly from Seattle to Riverside?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Riverside. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Seattle to Riverside flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Riverside

Explore weekly flight availability from Seattle to Riverside. 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 3, 2025.

The most flights from SEA to R1V are scheduled on a Thursday (140 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 on average).

How much does it cost to fly round-trip from Seattle to Riverside?

Reviews of airlines servicing Riverside

Get insights into the airlines that provide service to Riverside. 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 Riverside. Reviews last updated July 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Seattle to Riverside by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
Hawaiian Airlines
7.8
Good
2,545 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Crew

8.5

Boarding

8.1

Overall

8.0

Entertainment

7.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

ZLO - LAX

I liked flying Alaska. One exception; On the flight from Manzanillo to LA the air conditioner was producing too much cold air that kept me cold during the flight.

Related info for your journey

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

    If you book a flight to Riverside from Seattle, you will be flying from Seattle/Tacoma Intl, which is the city’s only airport. Seattle/Tacoma Intl (SEA) is located 11.4 mi from the center of Seattle. There are 77 flights from Seattle/Tacoma Intl to Riverside per day from 8 different airlines.

  • How popular is this Seattle to Riverside flight route?

    Flights from Seattle/Tacoma Intl to Riverside have been viewed 255 times in the past calendar month.

  • What are the cheapest airlines to fly from Seattle to Riverside one-way?

    One-way options have recently been found by users for as low as $88 on Spirit Airlines. Other airlines that offer cheap prices include United Airlines from $89 and Frontier from $92 one-way.

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

    The top 3 most reliable airlines when flying from Seattle to Riverside are Spirit Airlines (100%), China Eastern (98%) and Virgin Australia (97%).

  • What are the cheapest flights from Seattle to Riverside?

    The cheapest flight price from Seattle to Riverside is $94. On average you can expect to pay $1,501. The most popular route, (Seattle/Tacoma Intl - Los Angeles), can usually be booked for $104.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Riverside 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 Seattle to Riverside?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Riverside (average of $246). Flying from Seattle to Riverside in March is currently the most expensive (average of $326). 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

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Top 8 airlines flying from Seattle to Riverside

Discover the top 8 airlines that operate flights from Seattle to Riverside. 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 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$135FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$59Average$128FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$257FlexibilityNo cancel feeOn-time85%
DeltaCheapest$117Average$266FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$136Average$275FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$152Average$281FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$157Average$302FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$194Average$333FlexibilityNo cancel feeOn-time63%

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