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$42+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — LAX
Feb 26 — Mar 51
Wed 2/26
Wed 3/5
1 adult, Economy
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The best prices from Seattle/Tacoma Intl to Riverside are usually found in January or September, booked 30 days in advance, depart on a Thursday or Friday and return on a Thursday

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 February 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$71
(Frontier)

One-way from

$42
(Kiwi.com)

Popular in

April

Cheapest in

January

Average price

$218
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. 10% 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 February 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 February 21, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/266:53 pmSEA - LAX
Nonstop2h 42mFrontier
Wed 4/24:01 pmLAX - SEA
Nonstop3h 00mFrontier
Deal found 2/20$72
This Kiwi.com deal was found by Cheapflights users on 2/20. 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 4/302:30 pmSEA - LAX
Nonstop2h 53mMultiple Airlines
Tue 5/135:35 pmLAX - SEA
Nonstop3h 07mMultiple Airlines
Deal found 2/20$74
This FlightHub deal was found by Cheapflights users on 2/20. 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.
Wed 3/199:48 amSEA - LAX
1 stop5h 00mSpirit Airlines
Mon 3/244:11 pmLAX - SEA
Nonstop2h 58mSpirit Airlines
Deal found 2/20$85
This Delta deal was found by Cheapflights users on 2/20. 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 3/217:10 amSEA - LAX
Nonstop2h 55mDelta
Fri 3/288:15 pmLAX - SEA
Nonstop2h 58mDelta
Deal found 2/20$117
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 3/229:15 pmSEA - LAX
Nonstop2h 44mAlaska Airlines
Fri 3/289:02 pmLAX - SEA
Nonstop2h 57mAlaska Airlines
Deal found 2/20$147
This Southwest deal was found by Cheapflights users on 2/20. 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.
Wed 3/195:45 amSEA - LAX
2 stops7h 10mSouthwest
Sun 3/235:50 amLAX - SEA
1 stop5h 30mSouthwest
Deal found 2/20$156
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 3/173:01 pmSEA - LAX
Nonstop2h 44mUnited Airlines
Tue 3/254:12 pmLAX - SEA
1 stop5h 03mUnited Airlines
Deal found 2/20$194

Find flights from Seattle to Riverside within your budget

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 February 21, 2025.

Fly from

Seattle

Fly to

Riverside

Route

Depart

Return

Price

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 3/26

6:53 pm-9:35 pm

Nonstop2h 42m

Los Angeles

Wed 4/2

4:01 pm-7:01 pm

Nonstop3h 00m

$72

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 4/30

2:30 pm-5:23 pm

Nonstop2h 53m

Los Angeles

Tue 5/13

5:35 pm-8:42 pm

Nonstop3h 07m

$74

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 3/19

9:48 am-2:48 pm

1 stop5h 00m

Los Angeles

Mon 3/24

4:11 pm-7:09 pm

Nonstop2h 58m

$85

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Fri 3/21

7:10 am-10:05 am

Nonstop2h 55m

Los Angeles

Fri 3/28

8:15 pm-11:13 pm

Nonstop2h 58m

$117

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Wed 3/19

5:45 am-12:55 pm

2 stops7h 10m

Los Angeles

Sun 3/23

5:50 am-11:20 am

1 stop5h 30m

$156

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Tue 4/8

11:35 am-4:26 pm

1 stop4h 51m

Los Angeles

Sun 4/13

9:45 am-12:43 pm

Nonstop2h 58m

$177

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Mon 3/17

6:15 am-9:01 am

Nonstop2h 46m

Los Angeles

Wed 3/26

4:12 pm-9:15 pm

1 stop5h 03m

$194

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Mon 3/24

6:53 pm-9:35 pm

Nonstop2h 42m

$42

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Thu 3/27

9:48 am-3:50 pm

1 stop6h 02m

$47

SeattleLos Angeles

SEA - LAX

SEALAX

Seattle/Tacoma Intl

Sun 3/16

1:44 pm-4:30 pm

Nonstop2h 46m

$61

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

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.

Travel insights for flights from Seattle to Riverside

Get recent, data-driven insights about flights from Seattle to Riverside including ideal travel times, pricing trends, and more.

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 February 14, 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 $344). 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 February 21, 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 February 16, 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 February 21, 2025.

The most flights from SEA to R1V are scheduled on a Thursday (123 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 on average).

Rainfall in Riverside by month

Plan your trip to Riverside by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Riverside ranges from 0.0 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. July is typically the driest time to visit Riverside when rainfall is around 0.0 in.

Temperature in Riverside by month

Plan your trip to Riverside by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Riverside, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 57.2 F).

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 February 21, 2025.
See what other customers who have flown with Southwest, Alaska Airlines and Delta from Seattle to Riverside have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Southwest
8.1
Very good
4,401 reviews
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Alaska Airlines
8.0
Very good
9,697 reviews
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Delta
8.0
Very good
8,213 reviews
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

Hawaiian Airlines
7.9
Good
2,316 reviews
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

United Airlines
7.4
Good
8,759 reviews
Southwest
8.1
Very good
4,401 reviews

Crew

8.7

Food

7.1

Comfort

8.1

Overall

8.1

Boarding

8.2

Entertainment

7.6

Reviews

1 / 20

8.0
Excellent

Christine,Aug 2024

DEN - LGB

No issues. I needed pre boarding and I was able to get it without issue

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 71 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 258 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 $42 on Frontier. Other airlines that offer cheap prices include Spirit Airlines from $48 and Southwest from $76 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 Horizon Air (100%), KLM (94%) and ITA Airways (93%).

  • What are the cheapest flights from Seattle to Riverside?

    The cheapest flight price from Seattle to Riverside is $40. On average you can expect to pay $722. The most popular route, (Seattle/Tacoma Intl - Los Angeles), can usually be booked for $52.

  • 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 $344). 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 7 airlines flying from Seattle to Riverside

Discover the top 7 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 February 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$40Average$131FlexibilityNo cancel feeOn-time65%
FrontierCheapest$40Average$126FlexibilityNo cancel feeOn-time62%
DeltaCheapest$116Average$272FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$135Average$266FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$156Average$334FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$398FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$364FlexibilityNo cancel feeOn-time71%
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