$44+ Cheap flights from Riverside, CA to Seattle (SEA)
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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Mar 20 — Mar 271
1 adult, Economy
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Find cheap flights from Riverside to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Riverside to Seattle/Tacoma Intl are usually found in March or April, booked 61 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Riverside to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Riverside to SeattleExplore the most affordable flight options available from Riverside to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
Explore the most affordable flight options available from Riverside to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.
This Jetabroad deal was found by Cheapflights users on 2/17. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/256:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 3/132:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/256:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 2/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Sun 4/125:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 2/14![Frontier logo]()
$81
This CheapOair deal was found by Cheapflights users on 2/16. 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.
Thu 4/91:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Tue 4/1410:42 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/16![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 2/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Wed 4/85:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 2/15![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 2/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Sat 3/216:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 2/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/262:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/306:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/14![Frontier logo]()
$87
This Frontier deal was found by Cheapflights users on 2/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/162:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/186:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/15![Frontier logo]()
$88
This Flightnetwork deal was found by Cheapflights users on 2/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Sun 3/296:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/16![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 2/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/71:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Mon 4/135:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 2/15![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Mon 3/162:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/236:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/15![Frontier logo]()
$93
This Frontier deal was found by Cheapflights users on 2/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/202:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/236:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/16![Frontier logo]()
$94
Best flights from Riverside to SeattleDiscover carefully curated flight deals from Riverside to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
Discover carefully curated flight deals from Riverside to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 18, 2026.
This Expedia deal was found by Cheapflights users on 2/17. 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.
Sun 4/196:15 am
LAX
- SEA
1 stop27h 12m
Frontier
Wed 4/2210:42 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$108
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/79:56 am
LAX
- SEA
Nonstop3h 02m
Delta
Sat 3/145:55 pm
SEA
- LAX
Nonstop2h 43m
Delta
Deal found 2/14![Delta logo]()
$117
This Alaska Airlines deal was found by Cheapflights users on 2/16. 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 4/18:00 am
LAX
- SEA
Nonstop3h 02m
Alaska Airlines
Sun 4/56:25 am
SEA
- LAX
Nonstop2h 44m
Alaska Airlines
Deal found 2/16![Alaska Airlines logo]()
$117
This United Airlines deal was found by Cheapflights users on 2/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:50 pm
LAX
- SEA
Nonstop2h 58m
United Airlines
Sun 5/176:58 pm
SEA
- LAX
Nonstop2h 45m
United Airlines
Deal found 2/14![United Airlines logo]()
$117
This CheapOair deal was found by Cheapflights users on 2/17. 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 3/71:20 pm
LAX
- SEA
Nonstop2h 56m
Frontier
Sat 3/146:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$112
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/135:09 pm
LAX
- SEA
Nonstop2h 50m
Delta
Mon 3/165:55 pm
SEA
- LAX
Nonstop2h 40m
Delta
Deal found 2/15![Delta logo]()
$117
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:09 pm
LAX
- SEA
Nonstop2h 50m
Delta
Sun 3/159:40 am
SEA
- LAX
Nonstop2h 43m
Delta
Deal found 2/15![Delta logo]()
$117
This Delta deal was found by Cheapflights users on 2/16. 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.
Thu 3/1211:50 am
LAX
- SEA
Nonstop2h 49m
Delta
Sun 3/157:15 am
SEA
- LAX
Nonstop2h 47m
Delta
Deal found 2/16![Delta logo]()
$117
This Delta deal was found by Cheapflights users on 2/16. 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 4/245:32 pm
LAX
- SEA
Nonstop2h 53m
Delta
Mon 4/277:35 am
SEA
- LAX
Nonstop2h 50m
Delta
Deal found 2/16![Delta logo]()
$117
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:40 pm
LAX
- SEA
Nonstop2h 50m
Delta
Sun 5/177:15 am
SEA
- LAX
Nonstop2h 46m
Delta
Deal found 2/15![Delta logo]()
$117
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:35 pm
LAX
- SEA
Nonstop2h 48m
Delta
Sat 3/289:40 am
SEA
- LAX
Nonstop2h 43m
Delta
Deal found 2/14![Delta logo]()
$117
Last-minute flights from Riverside to SeattleDiscover last-minute flight deals from Riverside to Seattle. Data last updated February 18, 2026 and is based on user searches.
Discover last-minute flight deals from Riverside to Seattle. Data last updated February 18, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 2/17. 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.
Tue 3/102:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/116:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 3/132:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Tue 3/246:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$80
This CheapOair deal was found by Cheapflights users on 2/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/162:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/186:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/14![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 2/15. 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.
Mon 3/162:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/236:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/15![Frontier logo]()
$93
This Jetabroad deal was found by Cheapflights users on 2/17. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/256:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$77
This Super.com deal was found by Cheapflights users on 2/17. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Sat 3/216:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/17![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 2/14. 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.
Wed 3/186:30 pm
LAX
- SEA
1 stop25h 50m
Frontier
Thu 3/266:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/14![Frontier logo]()
$96
This Booking.com deal was found by Cheapflights users on 2/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/192:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/236:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/15![Frontier logo]()
$95
This Frontier deal was found by Cheapflights users on 2/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/202:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/236:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/15![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 2/13. 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 3/242:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Fri 3/276:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/13![Frontier logo]()
$81
This Flightnetwork deal was found by Cheapflights users on 2/16. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Sun 3/296:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/16![Frontier logo]()
$89
This Super.com deal was found by Cheapflights users on 2/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/262:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Mon 3/306:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 2/14![Frontier logo]()
$87
One-way flights from Riverside to SeattleSearch for one-way flight options from Riverside to Seattle. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
Search for one-way flight options from Riverside to Seattle. Find affordable one-way fares based on user searches. Data last updated February 18, 2026.
This Super.com deal was found by Cheapflights users on 2/16. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/182:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Deal found 2/16![Frontier logo]()
$44
This Flightnetwork deal was found by Cheapflights users on 2/15. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 2/15![Frontier logo]()
$45
This Trip.com deal was found by Cheapflights users on 2/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/242:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Deal found 2/16![Frontier logo]()
$46
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 5/152:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 2/17![Frontier logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 4/51:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Deal found 2/17![Frontier logo]()
$53
This Booking.com deal was found by Cheapflights users on 2/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Deal found 2/17![Frontier logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 2/17. 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 4/144:17 pm
LAX
- SEA
1 stop17h 10m
Frontier
Deal found 2/17![Frontier logo]()
$55
This Frontier deal was found by Cheapflights users on 2/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/12:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 2/16![Frontier logo]()
$56
This Trip.com deal was found by Cheapflights users on 2/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/261:28 pm
LAX
- SEA
1 stop6h 52m
Frontier
Deal found 2/17![Frontier logo]()
$61
This WAYA deal was found by Cheapflights users on 2/14. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/121:19 pm
LAX
- SEA
1 stop7h 01m
Frontier
Deal found 2/14![Frontier logo]()
$63
Find flight deals from Riverside to Seattle
Keep the following information in mind while searching for Riverside to Seattle flight deals. Data was last updated February 18, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $77 (Jetabroad) |
One-way from | $44 (Super.com) |
Popular in | June |
Cheapest in | March |
Average price | $217 |
Cheapflights Fare Finder
Customize your flight search to find flights from Riverside to Seattle 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 18, 2026.
Use the filters below to find and compare flights from Riverside to Seattle that are best for you.
Fly from
Riverside
Fly to
Seattle
Route
Depart
Return
Price
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sun 4/19
6:15 am-9:27 am
1 stop27h 12m
Seattle/Tacoma Intl
Wed 4/22
10:42 am-1:30 pm
Nonstop2h 48m
$108
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 3/7
1:20 pm-4:16 pm
Nonstop2h 56m
Seattle/Tacoma Intl
Sat 3/14
6:24 pm-9:12 pm
Nonstop2h 48m
$112
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 3/7
9:56 am-12:58 pm
Nonstop3h 02m
Seattle/Tacoma Intl
Sat 3/14
5:55 pm-8:38 pm
Nonstop2h 43m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 4/1
8:00 am-11:02 am
Nonstop3h 02m
Seattle/Tacoma Intl
Sun 4/5
6:25 am-9:09 am
Nonstop2h 44m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 5/9
4:50 pm-7:48 pm
Nonstop2h 58m
Seattle/Tacoma Intl
Sun 5/17
6:58 pm-9:43 pm
Nonstop2h 45m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 3/13
5:09 pm-7:59 pm
Nonstop2h 50m
Seattle/Tacoma Intl
Mon 3/16
5:55 pm-8:35 pm
Nonstop2h 40m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 3/11
5:09 pm-7:59 pm
Nonstop2h 50m
Seattle/Tacoma Intl
Sun 3/15
9:40 am-12:23 pm
Nonstop2h 43m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Thu 3/12
11:50 am-2:39 pm
Nonstop2h 49m
Seattle/Tacoma Intl
Sun 3/15
7:15 am-10:02 am
Nonstop2h 47m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 4/24
5:32 pm-8:25 pm
Nonstop2h 53m
Seattle/Tacoma Intl
Mon 4/27
7:35 am-10:25 am
Nonstop2h 50m
$117
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Mon 5/11
5:40 pm-8:30 pm
Nonstop2h 50m
Seattle/Tacoma Intl
Sun 5/17
7:15 am-10:01 am
Nonstop2h 46m
$117
Showing 1-10 of 22 results
Best time to book a flight from Riverside to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Riverside with our price prediction graph.
LAX-SEA
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 Seattle
R1V-SEA
LAX-SEA
How far ahead should I book a flight from Riverside to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Riverside to Seattle. Price data was last updated on February 13, 2026.
Booking 61 days in advance of your planned departure date is, on average, the best time to get cheap flights from Riverside to Seattle. 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 Seattle?
Currently, March is the cheapest month in which you can book a flight from Riverside to Seattle (average of $56). Flying from Riverside to Seattle in July is currently the most expensive (average of $134). 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 SEA?
Find hourly flight availability from Riverside to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 18, 2026.
It’s optimal to fly from Riverside to Seattle in the afternoon. By choosing this option you can save up to 10% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Riverside to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Riverside to Seattle. Price data was last updated on February 17, 2026.
Travelers seeking maximum savings on their Riverside to Seattle flight should consider departing on Saturday evenings 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 Seattle
Explore weekly flight availability from Riverside to Seattle. 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 18, 2026.
The most flights from R1V to SEA are scheduled on a Monday (117 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (58 on average).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated February 18, 2026.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Riverside to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
8.0
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Related info for your journey
Find useful and relevant information for your journey from Riverside to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsTacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Riverside to Seattle
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Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Riverside to Seattle by cabin class
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Riverside and Seattle flights
Browse other Riverside and Seattle flight options. Last updated on February 18, 2026.
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Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on February 18, 2026.
Riverside to Seattle flights
Consider these flights traveling from Riverside to Seattle.
Top 9 airlines flying from Riverside to Seattle
Discover the top 9 airlines that operate flights from Riverside to Seattle. 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$45 | Average$167 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$57 | Average$161 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$258 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$265 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$106 | Average$274 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$123 | Average$269 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$148 | Average$288 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$150 | Average$280 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$177 | Average$465 | FlexibilityNo cancel fee | On-time71% |