$44+ Cheap flights from Irvine, 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Apr 14 — Apr 211
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Irvine 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 Irvine to Seattle/Tacoma Intl are usually found in March or May, booked 61 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Irvine to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Irvine to SeattleExplore the most affordable flight options available from Irvine to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
Explore the most affordable flight options available from Irvine to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/61:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Mon 4/135:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 3/13![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 3/10. 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 4/292:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Fri 5/111:07 am
SEA
- LAX
Nonstop2h 52m
Frontier
Deal found 3/10![Frontier logo]()
$87
This Frontier deal was found by Cheapflights users on 3/14. 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.
Wed 4/222:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Sat 4/2510:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/14![Frontier logo]()
$88
This Frontier deal was found by Cheapflights users on 3/10. 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 4/81:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Wed 4/1510:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/10![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/232:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Tue 4/2810:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/10![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/292:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Sun 5/311:12 am
SEA
- LAX
Nonstop2h 52m
Frontier
Deal found 3/11![Frontier logo]()
$91
This Jetabroad deal was found by Cheapflights users on 3/10. 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.
Mon 4/61:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Tue 4/1410:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/10![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Thu 4/302:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Sun 5/109:35 pm
SEA
- LAX
1 stop19h 36m
Frontier
Deal found 3/10![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/710:03 am
LAX
- SEA
1 stop6h 11m
Multiple Airlines
Thu 4/1610:57 am
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$96
This Frontier deal was found by Cheapflights users on 3/12. 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 4/142:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Wed 4/1510:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/12![Frontier logo]()
$98
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
LAX
- SEA
1 stop7h 38m
Multiple Airlines
Tue 4/2810:57 am
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/214:17 pm
LAX
- SEA
1 stop17h 10m
Frontier
Tue 4/2810:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/10![Frontier logo]()
$101
Best flights from Irvine to SeattleDiscover carefully curated flight deals from Irvine to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
Discover carefully curated flight deals from Irvine to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 15, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 5/138:00 am
LAX
- SEA
Nonstop3h 01m
Alaska Airlines
Mon 5/182:25 pm
SEA
- LAX
Nonstop2h 45m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$147
This Southwest deal was found by Cheapflights users on 3/10. 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 4/223:35 pm
LAX
- SEA
1 stop8h 00m
Southwest
Wed 4/299:20 am
SEA
- LAX
1 stop7h 00m
Southwest
Deal found 3/10![Southwest logo]()
$151
This Delta deal was found by Cheapflights users on 3/15. 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 5/157:59 pm
LAX
- SEA
Nonstop2h 56m
Delta
Mon 5/187:55 pm
SEA
- LAX
Nonstop2h 49m
Delta
Deal found 3/15![Delta logo]()
$177
This United Airlines deal was found by Cheapflights users on 3/14. 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.
Tue 4/215:27 pm
LAX
- SEA
1 stop6h 00m
United Airlines
Sat 4/2511:35 am
SEA
- LAX
1 stop6h 16m
United Airlines
Deal found 3/14![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 3/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/293:35 pm
LAX
- SEA
1 stop8h 00m
Southwest
Wed 5/611:40 am
SEA
- LAX
2 stops8h 05m
Southwest
Deal found 3/15![Southwest logo]()
$162
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/218:42 am
LAX
- SEA
1 stop7h 10m
Alaska Airlines
Sat 4/254:08 pm
SEA
- LAX
1 stop4h 21m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$167
This Southwest deal was found by Cheapflights users on 3/12. 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.
Tue 4/75:00 pm
LAX
- SEA
1 stop6h 55m
Southwest
Thu 4/237:20 am
SEA
- LAX
1 stop9h 45m
Southwest
Deal found 3/12![Southwest logo]()
$172
This Alaska Airlines deal was found by Cheapflights users on 3/12. 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.
Tue 4/1411:03 am
LAX
- SEA
1 stop5h 36m
Alaska Airlines
Wed 4/157:10 am
SEA
- LAX
1 stop5h 53m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$197
This Delta deal was found by Cheapflights users on 3/15. 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.
Thu 5/1412:10 pm
LAX
- SEA
Nonstop2h 55m
Delta
Mon 5/1810:55 pm
SEA
- LAX
1 stop10h 22m
Delta
Deal found 3/15![Delta logo]()
$231
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/189:14 pm
LAX
- SEA
1 stop8h 48m
Alaska Airlines
Wed 5/2010:25 am
SEA
- LAX
1 stop8h 30m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:31 am
LAX
- SEA
1 stop5h 03m
Alaska Airlines
Sun 5/1010:50 pm
SEA
- LAX
1 stop10h 30m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$207
This Southwest deal was found by Cheapflights users on 3/10. 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 4/83:35 pm
LAX
- SEA
2 stops7h 20m
Southwest
Wed 4/151:25 pm
SEA
- LAX
1 stop7h 20m
Southwest
Deal found 3/10![Southwest logo]()
$264
Last-minute flights from Irvine to SeattleDiscover last-minute flight deals from Irvine to Seattle. Data last updated March 15, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Seattle. Data last updated March 15, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 3/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/61:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Mon 4/135:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 3/13![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/710:03 am
LAX
- SEA
1 stop6h 11m
Multiple Airlines
Thu 4/2310:57 am
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$96
This Trip.com deal was found by Cheapflights users on 3/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
LAX
- SEA
1 stop7h 38m
Multiple Airlines
Tue 4/2810:57 am
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$100
This Frontier deal was found by Cheapflights users on 3/10. 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 4/81:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Wed 4/1510:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/10![Frontier logo]()
$89
This Jetabroad deal was found by Cheapflights users on 3/11. 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 4/81:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Mon 4/135:59 pm
SEA
- LAX
Nonstop2h 46m
Frontier
Deal found 3/11![Frontier logo]()
$94
This Frontier deal was found by Cheapflights users on 3/12. 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 4/142:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Wed 4/1510:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/12![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 3/13. 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.
Thu 4/162:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Mon 4/208:45 pm
SEA
- LAX
1 stop19h 30m
Frontier
Deal found 3/13![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/214:17 pm
LAX
- SEA
1 stop17h 10m
Frontier
Tue 4/2810:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/11![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 3/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/222:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Thu 4/3010:57 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 3/13![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/292:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Mon 5/1111:06 am
SEA
- LAX
Nonstop2h 57m
Frontier
Deal found 3/11![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/292:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Sun 5/311:12 am
SEA
- LAX
Nonstop2h 52m
Frontier
Deal found 3/11![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 3/11. 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.
Thu 4/302:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Mon 5/1111:37 am
SEA
- LAX
1 stop7h 55m
Frontier
Deal found 3/11![Frontier logo]()
$95
One-way flights from Irvine to SeattleSearch for one-way flight options from Irvine to Seattle. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
Search for one-way flight options from Irvine to Seattle. Find affordable one-way fares based on user searches. Data last updated March 15, 2026.
This Frontier deal was found by Cheapflights users on 3/10. 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 5/62:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 3/10![Frontier logo]()
$44
This Jetabroad deal was found by Cheapflights users on 3/11. 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.
Thu 4/232:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 3/11![Frontier logo]()
$47
This Kiwi.com deal was found by Cheapflights users on 3/14. 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.
Fri 4/242:55 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 3/14![Frontier logo]()
$52
This CheapOair deal was found by Cheapflights users on 3/11. 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 5/213:15 pm
LAX
- SEA
Nonstop3h 20m
Frontier
Deal found 3/11![Frontier logo]()
$54
This Jetabroad deal was found by Cheapflights users on 3/11. 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.
Fri 4/31:39 pm
LAX
- SEA
Nonstop3h 05m
Frontier
Deal found 3/11![Frontier logo]()
$55
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/19:05 pm
LAX
- SEA
1 stop23h 55m
Frontier
Deal found 3/10![Frontier logo]()
$59
This WAYA deal was found by Cheapflights users on 3/11. 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.
Tue 4/710:03 am
LAX
- SEA
1 stop6h 11m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/610:53 pm
LAX
- SEA
1 stop17h 21m
Frontier
Deal found 3/10![Frontier logo]()
$67
This United Airlines deal was found by Cheapflights users on 3/12. 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.
Wed 4/86:45 pm
LAX
- SEA
Nonstop3h 01m
United Airlines
Deal found 3/12![United Airlines logo]()
$69
This CheapOair deal was found by Cheapflights users on 3/12. 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.
Wed 4/222:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Deal found 3/12![Frontier logo]()
$70
Find flight deals from Irvine to Seattle
Keep the following information in mind while searching for Irvine to Seattle flight deals. Data was last updated March 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $86 (CheapOair) |
One-way from | $44 (Frontier) |
Popular in | June |
Cheapest in | March |
Average price | $191 |
Cheapflights Fare Finder
Customize your flight search to find flights from Irvine 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 March 15, 2026.
Use the filters below to find and compare flights from Irvine to Seattle that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Wed 5/13
8:00 am-11:01 am
Nonstop3h 01m
Seattle/Tacoma Intl
Mon 5/18
2:25 pm-5:10 pm
Nonstop2h 45m
$147
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Wed 4/22
3:35 pm-11:35 pm
1 stop8h 00m
Seattle/Tacoma Intl
Wed 4/29
9:20 am-4:20 pm
1 stop7h 00m
$151
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Wed 4/29
3:35 pm-11:35 pm
1 stop8h 00m
Seattle/Tacoma Intl
Wed 5/6
11:40 am-7:45 pm
2 stops8h 05m
$162
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Tue 4/21
8:42 am-3:52 pm
1 stop7h 10m
Seattle/Tacoma Intl
Sat 4/25
4:08 pm-8:29 pm
1 stop4h 21m
$167
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Tue 4/7
5:00 pm-11:55 pm
1 stop6h 55m
Seattle/Tacoma Intl
Thu 4/23
7:20 am-5:05 pm
1 stop9h 45m
$172
Quickest round-trip
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Fri 5/15
7:59 pm-10:55 pm
Nonstop2h 56m
Seattle/Tacoma Intl
Mon 5/18
7:55 pm-10:44 pm
Nonstop2h 49m
$177
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Tue 4/14
11:03 am-4:39 pm
1 stop5h 36m
Seattle/Tacoma Intl
Wed 4/15
7:10 am-1:03 pm
1 stop5h 53m
$197
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Mon 5/18
9:14 pm-6:02 am
1 stop8h 48m
Seattle/Tacoma Intl
Wed 5/20
10:25 am-6:55 pm
1 stop8h 30m
$197
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Sat 5/2
9:31 am-2:34 pm
1 stop5h 03m
Seattle/Tacoma Intl
Sun 5/10
10:50 pm-9:20 am
1 stop10h 30m
$207
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles Los Angeles
Thu 5/14
12:10 pm-3:05 pm
Nonstop2h 55m
Seattle/Tacoma Intl
Mon 5/18
10:55 pm-9:17 am
1 stop10h 22m
$231
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Irvine to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Irvine 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 Irvine to Seattle
IR9-SEA
LAX-SEA
How far ahead should I book a flight from Irvine to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Irvine to Seattle. Price data was last updated on March 13, 2026.
The best time to book flights from Irvine to Seattle is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Irvine to Seattle?
Currently, March is the cheapest month in which you can book a flight from Irvine to Seattle (average of $56). Flying from Irvine 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 IR9 to SEA?
Find hourly flight availability from Irvine 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 March 15, 2026.
One of the essential ways to save on airfare from Irvine to Seattle is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 6% on airfare.
What is the cheapest day to fly from Irvine to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Irvine to Seattle. Price data was last updated on March 12, 2026.
Travelers seeking maximum savings on their Irvine 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 Irvine to Seattle
Explore weekly flight availability from Irvine 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 March 15, 2026.
The most flights from IR9 to SEA are scheduled on a Sunday (108 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (52 on average).
How much does it cost to fly round-trip from Irvine to Seattle?
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 March 15, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andHawaiian Airlines from Irvine to Seattle have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
Entertainment
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Food
7.1
Boarding
8.1
Overall
7.9
Comfort
7.8
Crew
8.5
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 Irvine 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 locationsSeaTac
Tacoma
Ocean Shores
Olympia
Kent
Lynnwood
Edmonds
Lacey
Renton
Puyallup
Kirkland
Ellensburg
Tukwila
Fife
Lakewood
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Seattle flight routes
Top destinations
Alternative routes for Irvine to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Irvine to Seattle by cabin class
Find flights from Irvine to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Irvine and Seattle flights
Browse other Irvine and Seattle flight options. Last updated on March 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 March 15, 2026.
Irvine to Seattle flights
Consider these flights traveling from Irvine to Seattle.
Top 9 airlines flying from Irvine to Seattle
Discover the top 9 airlines that operate flights from Irvine 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 March 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$37 | Average$180 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$44 | Average$179 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$272 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$250 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$290 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$148 | Average$309 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$150 | Average$277 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$291 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$423 | FlexibilityNo cancel fee | On-time71% |