$98+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
LAX ā SEA
Aug 31 ā Sep 71
Round-trip
1 adult, Economy
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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 āFind dealsā2. 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 providerās pricing and select the best option for you! Book through your favorite providerās website for a seamless experience.Cheapflights Tip: The best prices from Irvine to Seattle/Tacoma Intl are usually found in March or February, booked 70 days in advance, depart on a Thursday or Friday 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 August 1, 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 August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/203:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Fri 8/2110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/29![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/66:55 am
LAX
- SEA
1 stop8h 33m
Frontier
Sat 9/128:15 pm
SEA
- LAX
Nonstop2h 49m
Frontier
Deal found 7/29![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Wed 9/210:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 8/1![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/243:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Mon 8/3110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 8/1![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/299:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Sat 9/52:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Deal found 7/30![Frontier logo]()
$187
This Frontier deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/53:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Mon 9/79:36 pm
SEA
- LAX
1 stop11h 53m
Frontier
Deal found 7/30![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/66:55 am
LAX
- SEA
1 stop8h 33m
Frontier
Tue 9/810:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/29![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 9/67:16 am
LAX
- SEA
1 stop5h 35m
Multiple Airlines
Thu 9/108:15 pm
SEA
- LAX
Nonstop2h 49m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$190
This Frontier deal was found by Cheapflights users on 7/27. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/23:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Tue 9/810:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/27![Frontier logo]()
$191
This Frontier deal was found by Cheapflights users on 7/28. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/266:30 am
LAX
- SEA
1 stop6h 52m
Frontier
Sat 8/2910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/28![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/223:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Tue 8/252:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Deal found 7/30![Frontier logo]()
$193
This Trip.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Trip.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Sun 8/3010:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/30![Frontier logo]()
$194
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 August 1, 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 August 1, 2026.
This Southwest deal was found by Cheapflights users on 7/28. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/183:15 pm
LAX
- SEA
1 stop3h 55m
Southwest
Wed 8/199:25 am
SEA
- LAX
1 stop5h 25m
Southwest
Deal found 7/28![Southwest logo]()
$212
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/286:45 pm
LAX
- SEA
1 stop4h 41m
United Airlines
Mon 8/313:30 pm
SEA
- LAX
1 stop4h 57m
United Airlines
Deal found 7/28![United Airlines logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 9/86:15 pm
LAX
- SEA
1 stop4h 24m
Alaska Airlines
Sun 9/137:08 am
SEA
- LAX
1 stop6h 04m
Alaska Airlines
Deal found 7/29![Alaska Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 7/27. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/171:55 pm
LAX
- SEA
2 stops7h 20m
Southwest
Mon 8/245:00 am
SEA
- LAX
1 stop5h 40m
Southwest
Deal found 7/27![Southwest logo]()
$222
This United Airlines deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/249:37 am
LAX
- SEA
1 stop4h 47m
United Airlines
Mon 8/317:35 pm
SEA
- LAX
1 stop4h 56m
United Airlines
Deal found 7/31![United Airlines logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 10/2012:57 pm
LAX
- SEA
1 stop5h 36m
Alaska Airlines
Thu 10/225:59 pm
SEA
- LAX
1 stop5h 45m
Alaska Airlines
Deal found 7/31![Alaska Airlines logo]()
$247
This Southwest deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 10/205:55 am
LAX
- SEA
1 stop5h 30m
Southwest
Wed 10/2112:05 pm
SEA
- LAX
2 stops7h 45m
Southwest
Deal found 7/31![Southwest logo]()
$242
This Alaska Airlines deal was found by Cheapflights users on 7/28. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/302:15 pm
LAX
- SEA
1 stop4h 36m
Alaska Airlines
Sun 10/47:20 am
SEA
- LAX
1 stop6h 04m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$247
This United Airlines deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure United Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/215:37 pm
LAX
- SEA
1 stop5h 49m
United Airlines
Sun 8/236:30 am
SEA
- LAX
Nonstop3h 04m
United Airlines
Deal found 7/29![United Airlines logo]()
$255
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 9/267:03 am
LAX
- SEA
1 stop4h 55m
Alaska Airlines
Sun 10/46:39 am
SEA
- LAX
1 stop5h 14m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$262
This Southwest deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sun 8/308:15 am
LAX
- SEA
1 stop6h 45m
Southwest
Tue 9/11:45 pm
SEA
- LAX
2 stops7h 25m
Southwest
Deal found 7/31![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Alaska Airlines is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/212:45 pm
LAX
- SEA
Nonstop2h 47m
Alaska Airlines
Mon 9/76:49 am
SEA
- LAX
Nonstop2h 45m
Alaska Airlines
Deal found 7/30![Alaska Airlines logo]()
$267
Last-minute flights from Irvine to SeattleDiscover last-minute flight deals from Irvine to Seattle. Data last updated August 1, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Seattle. Data last updated August 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/1810:15 am
LAX
- SEA
1 stop24h 24m
Frontier
Wed 8/197:06 pm
SEA
- LAX
1 stop13h 24m
Frontier
Deal found 7/29![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/203:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Fri 8/2110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/29![Frontier logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/229:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Tue 8/257:06 pm
SEA
- LAX
1 stop13h 49m
Frontier
Deal found 7/29![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/243:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Mon 8/3110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 8/1![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/248:02 am
LAX
- SEA
Nonstop2h 54m
Multiple Airlines
Thu 8/2710:34 am
SEA
- LAX
Nonstop3h 00m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$189
This Frontier deal was found by Cheapflights users on 7/28. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 8/266:30 am
LAX
- SEA
1 stop6h 52m
Frontier
Sat 8/2910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/28![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Wed 9/210:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 8/1![Frontier logo]()
$185
This Frontier deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Sat 8/2910:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/30![Frontier logo]()
$188
This Trip.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Trip.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/273:04 pm
LAX
- SEA
Nonstop2h 47m
Frontier
Sun 8/3010:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 7/30![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 8/1. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Frontier is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/289:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Mon 8/3110:34 am
SEA
- LAX
Nonstop3h 00m
Frontier
Deal found 8/1![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 8/299:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Sat 9/52:37 pm
SEA
- LAX
1 stop9h 34m
Frontier
Deal found 7/30![Frontier logo]()
$187
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 August 1, 2026.
Search for one-way flight options from Irvine to Seattle. Find affordable one-way fares based on user searches. Data last updated August 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Sat 10/39:20 pm
LAX
- SEA
1 stop12h 22m
Frontier
Deal found 7/31![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/314:15 pm
LAX
- SEA
2 stops18h 24m
Frontier
Deal found 7/27![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/305:20 pm
LAX
- SEA
1 stop16h 22m
Frontier
Deal found 7/30![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Wed 9/165:20 pm
LAX
- SEA
1 stop16h 22m
Frontier
Deal found 7/29![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 8/247:07 pm
LAX
- SEA
2 stops18h 15m
Frontier
Deal found 7/30![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Tue 8/2510:15 am
LAX
- SEA
1 stop24h 24m
Frontier
Deal found 7/31![Frontier logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 10/23:35 pm
LAX
- SEA
Nonstop3h 01m
Frontier
Deal found 7/31![Frontier logo]()
$108
This Southwest deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Southwest is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Fri 8/287:10 pm
LAX
- SEA
1 stop5h 30m
Southwest
Deal found 7/29![Southwest logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Thu 8/279:09 pm
LAX
- SEA
1 stop12h 10m
Frontier
Deal found 7/30![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the āPick Datesā button in this card will allow you to select your dates and further customize your flight criteria. From there, click āFind dealsā, make sure Kiwi.com is selected, and click āCompare selectedā under the list of providers to see comparable flight deals.
Mon 9/76:55 am
LAX
- SEA
2 stops26h 24m
Frontier
Deal found 7/29![Frontier logo]()
$112
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 August 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $183 (Kiwi.com) |
One-way from | $98 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $292 |
Cheapflights Fare Finder
Ā
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 August 1, 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
Tue 8/18
3:15 pm-7:10 pm
1 stop3h 55m
Seattle/Tacoma Intl
Wed 8/19
9:25 am-2:50 pm
1 stop5h 25m
$212
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Mon 8/17
1:55 pm-9:15 pm
2 stops7h 20m
Seattle/Tacoma Intl
Mon 8/24
5:00 am-10:40 am
1 stop5h 40m
$222
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 8/28
6:45 pm-11:26 pm
1 stop4h 41m
Seattle/Tacoma Intl
Mon 8/31
3:30 pm-8:27 pm
1 stop4h 57m
$237
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Mon 8/24
9:37 am-2:24 pm
1 stop4h 47m
Seattle/Tacoma Intl
Mon 8/31
7:35 pm-12:31 am
1 stop4h 56m
$242
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Tue 10/20
5:55 am-11:25 am
1 stop5h 30m
Seattle/Tacoma Intl
Wed 10/21
12:05 pm-7:50 pm
2 stops7h 45m
$242
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Tue 9/8
6:15 pm-10:39 pm
1 stop4h 24m
Seattle/Tacoma Intl
Sun 9/13
7:08 am-1:12 pm
1 stop6h 04m
$247
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Tue 10/20
12:57 pm-6:33 pm
1 stop5h 36m
Seattle/Tacoma Intl
Thu 10/22
5:59 pm-11:44 pm
1 stop5h 45m
$247
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 9/30
2:15 pm-6:51 pm
1 stop4h 36m
Seattle/Tacoma Intl
Sun 10/4
7:20 am-1:24 pm
1 stop6h 04m
$247
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 8/21
5:37 pm-11:26 pm
1 stop5h 49m
Seattle/Tacoma Intl
Sun 8/23
6:30 am-9:34 am
Nonstop3h 04m
$255
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 9/26
7:03 am-11:58 am
1 stop4h 55m
Seattle/Tacoma Intl
Sun 10/4
6:39 am-11:53 am
1 stop5h 14m
$262
Showing 1-10 of 23 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
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 August 1, 2026.
One of the essential ways to save on airfare from Irvine to Seattle is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 14% on airfare.
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 August 1, 2026.
The most flights from IR9 to SEA are scheduled on a Thursday (111 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (40 on average).
How much does it cost to fly round-trip from Irvine to Seattle?
Airfare is below average for this route at the moment.
Irvine to Seattle flights typically cost between $213 and $367 in August.The cheapest round-trip price found within the last 5 days was $183 on Frontier (Aug 20-Aug 21).
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 July 25, 2026.
Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Sunday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 1, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited 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.
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Comfort
7.8
Entertainment
7.0
Boarding
8.1
Crew
8.5
Food
7.0
Overall
7.9
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
Renton
Tacoma
Lacey
Leavenworth
Olympia
Edmonds
Tukwila
Snoqualmie
Tumwater
Centralia
Puyallup
Kent
Ellensburg
Fife
Marysville
Ocean Shores
Lakewood
Lynnwood
Shoreline
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.
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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 August 1, 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 August 1, 2026.
Irvine to Seattle flights
Consider these flights traveling from Irvine to Seattle.
Top 8 airlines flying from Irvine to Seattle
Discover the top 8 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 August 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$194 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$285 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$265 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$294 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$141 | Average$314 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$309 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$164 | Average$355 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$201 | Average$472 | FlexibilityNo cancel fee | On-time71% |