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Riverside

$74+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Dec 17 — Dec 241
Wed 12/17
Wed 12/24
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Riverside are usually found in January or March, booked 63 days in advance, depart on a Friday or Thursday and return on a Friday

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 November 17, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$129
(Frontier)

One-way from

$74
(Kiwi.com)

Popular in

November

Cheapest in

January

Average price

$272
Provider with most accurate pricing for Seattle/Tacoma Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Los Angeles flights.
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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. 14% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 17, 2025.

This Priceline deal was found by Cheapflights users on 11/14. 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.
Mon 12/1511:01 amSEA - LAX
1 stop9h 04mFrontier
Sun 12/219:36 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$129
This CheapOair deal was found by Cheapflights users on 11/16. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/811:01 amSEA - LAX
1 stop9h 04mFrontier
Fri 12/1210:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/16$130
This Expedia deal was found by Cheapflights users on 11/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/612:48 pmSEA - LAX
1 stop18h 54mFrontier
Mon 12/810:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$131
This Expedia deal was found by Cheapflights users on 11/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:59 pmSEA - LAX
Nonstop2h 41mMultiple Airlines
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mMultiple Airlines
Deal found 11/16$132
This Kiwi.com deal was found by Cheapflights users on 11/14. 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.
Sun 12/142:25 pmSEA - LAX
Nonstop2h 45mFrontier
Mon 12/1510:24 amLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$133
This CheapOair deal was found by Cheapflights users on 11/15. 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 12/1312:48 pmSEA - LAX
1 stop18h 54mFrontier
Sat 12/209:36 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/15$134
This Kiwi.com deal was found by Cheapflights users on 11/15. 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 12/62:25 pmSEA - LAX
Nonstop2h 45mFrontier
Sun 12/148:56 pmLAX - SEA
2 stops17h 49mFrontier
Deal found 11/15$135
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/94:59 pmSEA - LAX
Nonstop2h 43mMultiple Airlines
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mMultiple Airlines
Deal found 11/16$136
This Alaska Airlines deal was found by Cheapflights users on 11/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/179:15 pmSEA - LAX
1 stop10h 16mAlaska Airlines
Thu 12/189:55 amLAX - SEA
Nonstop3h 02mAlaska Airlines
Deal found 11/16$137
This Expedia deal was found by Cheapflights users on 11/16. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/123:40 pmSEA - LAX
1 stop26h 58mFrontier
Fri 12/199:15 amLAX - SEA
1 stop9h 38mFrontier
Deal found 11/16$138
This Frontier deal was found by Cheapflights users on 11/14. 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.
Mon 12/152:25 pmSEA - LAX
Nonstop2h 45mFrontier
Thu 12/259:36 pmLAX - SEA
Nonstop3h 06mFrontier
Deal found 11/14$139
This FlightHub deal was found by Cheapflights users on 11/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/19:53 pmSEA - LAX
1 stop22h 12mFrontier
Thu 12/411:00 amLAX - SEA
1 stop27h 45mFrontier
Deal found 11/15$140

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 November 17, 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

Sat 12/13

7:10 am-10:05 am

Nonstop2h 55m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sat 12/13

4:59 pm-7:42 pm

Nonstop2h 43m

Los Angeles

Tue 12/16

7:00 pm-9:59 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/16

5:59 pm-8:43 pm

Nonstop2h 44m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 12/17

2:05 pm-4:48 pm

Nonstop2h 43m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$157

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 12/31

9:25 am-1:50 pm

1 stop4h 25m

Los Angeles

Tue 1/6

3:50 pm-8:20 pm

1 stop4h 30m

$159

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 1/6

11:20 am-6:35 pm

2 stops7h 15m

Los Angeles

Sat 1/10

8:25 am-12:40 pm

1 stop4h 15m

$160

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 12/17

7:05 am-9:58 am

Nonstop2h 53m

Los Angeles

Thu 12/25

5:59 pm-8:59 pm

Nonstop3h 00m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/16

10:59 am-1:49 pm

Nonstop2h 50m

Los Angeles

Thu 12/25

7:59 pm-11:02 pm

Nonstop3h 03m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 12/16

8:10 pm-10:58 pm

Nonstop2h 48m

Los Angeles

Mon 12/22

8:59 pm-11:59 pm

Nonstop3h 00m

$167

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 12/14

12:45 pm-3:29 pm

Nonstop2h 44m

Los Angeles

Wed 12/24

7:55 pm-10:54 pm

Nonstop2h 59m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/15

Showing 1-10 of 22 results
1
2
3

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 November 14, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Riverside, you should look to book at least 63 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 $38). Flying from Seattle to Riverside in July is currently the most expensive (average of $119). 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 November 17, 2025.

It’s typically best to fly out from Seattle to Riverside at noon. Doing so could potentially save you 11% on the flight price compared to flying in the morning, which is usually more expensive.

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 November 2, 2025.

Travelers seeking maximum savings on their Seattle to Riverside flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon 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 November 17, 2025.

The most flights from SEA to R1V are scheduled on a Sunday (110 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (57 on average).

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 November 17, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Delta, and United Airlines 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
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,310 reviews
Alaska Airlines
8.0
Very good
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,006 reviews
Alaska Airlines
8.0
Very good
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,013 reviews
Alaska Airlines
8.0
Very good
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Spirit Airlines
6.3
Okay
8,144 reviews
Alaska Airlines
8.0
Very good
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,104 reviews
Alaska Airlines
8.0
Very good
11,310 reviews

Overall

8.0

Food

7.1

Entertainment

7.0

Crew

8.5

Boarding

8.1

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 80 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 316 times in the past calendar month.

  • How long is the flight from Seattle to Riverside?

    There are many flights that can get you from Seattle to Riverside in 2h 43m. Fly via Delta, Alaska Airlines, or Southwest to get the fastest option. Airlines will cover a distance of 954 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The top 3 most reliable airlines when flying from Seattle to Riverside are Air China (97%), ITA Airways (97%) and China Eastern (96%).

  • What are the cheapest flights from Seattle to Riverside?

    The cheapest flight price from Seattle to Riverside is $66. On average you can expect to pay $874. The most popular route, (Seattle/Tacoma Intl - Los Angeles), can usually be booked for $70.

  • 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 $38). Flying from Seattle to Riverside in July is currently the most expensive (average of $119). 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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Alternative routes for Seattle to Riverside

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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 November 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$152FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$76Average$161FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$268FlexibilityNo cancel feeOn-time85%
DeltaCheapest$118Average$267FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$130Average$284FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$147Average$285FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$155Average$287FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$177Average$310FlexibilityNo cancel feeOn-time71%

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