$59+ Cheap flights from Irvine, CA to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Oct 17 — Oct 241
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 “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 70 days in advance, depart on a Thursday or Saturday 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 September 17, 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 September 17, 2026.
This Super.com deal was found by Cheapflights users on 9/14. 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 10/293:41 pm -
Nonstop3h 13m
Sat 10/318:09 pm -
Nonstop2h 50m
Deal found 9/14![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Sat 10/173:35 pm -
Nonstop3h 10m
Mon 10/198:00 pm -
Nonstop2h 46m
Deal found 9/13![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 10/133:35 pm -
Nonstop3h 10m
Wed 10/218:00 pm -
Nonstop2h 46m
Deal found 9/13![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/143:35 pm -
Nonstop3h 10m
Mon 10/198:00 pm -
Nonstop2h 46m
Deal found 9/13![Frontier logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 10/143:35 pm -
Nonstop3h 10m
Sat 10/178:00 pm -
Nonstop2h 46m
Deal found 9/13![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:15 am -
1 stop8h 57m
Wed 11/48:09 pm -
Nonstop2h 50m
Deal found 9/15![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 9/14. 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.
Fri 10/303:41 pm -
Nonstop3h 13m
Tue 11/38:09 pm -
Nonstop2h 50m
Deal found 9/14![Frontier logo]()
$126
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/153:35 pm -
Nonstop3h 10m
Tue 10/208:00 pm -
Nonstop2h 46m
Deal found 9/14![Frontier logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Wed 10/143:35 pm -
Nonstop3h 10m
Tue 10/208:00 pm -
Nonstop2h 46m
Deal found 9/15![Frontier logo]()
$128
This CheapOair deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:35 pm -
Nonstop3h 10m
Mon 11/28:09 pm -
Nonstop2h 50m
Deal found 9/15![Frontier logo]()
$129
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 September 17, 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 September 17, 2026.
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:30 am -
1 stop6h 10m
Sat 10/249:45 am -
1 stop4h 40m
Deal found 9/13![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 9/15. 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 11/1112:14 pm -
Nonstop2h 55m
Sat 11/1410:12 am -
Nonstop2h 48m
Deal found 9/15![Delta logo]()
$247
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/154:30 pm -
Nonstop2h 59m
Tue 10/203:18 pm -
1 stop5h 04m
Deal found 9/16![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1711:30 am -
1 stop6h 10m
Tue 10/205:35 am -
2 stops7h 25m
Deal found 9/13![Southwest logo]()
$252
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:10 pm -
Nonstop2h 49m
Mon 10/197:11 am -
1 stop4h 50m
Deal found 9/16![United Airlines logo]()
$257
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 10/135:55 am -
2 stops7h 40m
Tue 10/205:35 am -
2 stops7h 25m
Deal found 9/15![Southwest logo]()
$257
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Fri 10/3011:35 am -
1 stop4h 52m
Sun 11/17:00 am -
1 stop5h 01m
Deal found 9/14![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/113:00 pm -
1 stop7h 05m
Wed 12/169:25 am -
1 stop5h 45m
Deal found 9/14![Southwest logo]()
$262
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1011:45 am -
1 stop6h 59m
Wed 10/213:18 pm -
1 stop5h 04m
Deal found 9/13![United Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 9/15. 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.
Tue 10/611:25 am -
2 stops11h 35m
Tue 10/2012:05 pm -
2 stops7h 45m
Deal found 9/15![Southwest logo]()
$263
This United Airlines deal was found by Cheapflights users on 9/16. 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 United Airlines is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Thu 10/226:56 pm -
1 stop6h 19m
Sun 10/257:00 am -
1 stop7h 01m
Deal found 9/16![United Airlines logo]()
$267
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/293:05 pm -
1 stop5h 42m
Thu 11/57:00 am -
1 stop4h 51m
Deal found 9/14![United Airlines logo]()
$267
Last-minute flights from Irvine to SeattleDiscover last-minute flight deals from Irvine to Seattle. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Irvine to Seattle. Data last updated September 17, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:30 am -
1 stop22h 12m
Fri 10/168:00 pm -
Nonstop2h 46m
Deal found 9/14![Frontier logo]()
$249
This deal was found by Cheapflights users on 9/13. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/233:09 pm -
Nonstop3h 01m
Thu 9/248:15 pm -
Nonstop2h 49m
Deal found 9/13![Frontier logo]()
$181
This CheapOair deal was found by Cheapflights users on 9/12. 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 9/233:09 pm -
Nonstop3h 01m
Sat 10/38:15 pm -
Nonstop2h 49m
Deal found 9/12![Frontier logo]()
$217
This Super.com deal was found by Cheapflights users on 9/12. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:35 pm -
Nonstop3h 01m
Wed 10/77:25 pm -
Nonstop2h 55m
Deal found 9/12![Frontier logo]()
$247
This CheapOair deal was found by Cheapflights users on 9/11. 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.
Fri 9/253:35 pm -
Nonstop3h 01m
Fri 10/29:45 pm -
1 stop10h 02m
Deal found 9/11![Frontier logo]()
$237
This Super.com deal was found by Cheapflights users on 9/16. 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.
Fri 9/253:35 pm -
Nonstop3h 01m
Wed 10/218:00 pm -
Nonstop2h 46m
Deal found 9/16![Frontier logo]()
$269
This Super.com deal was found by Cheapflights users on 9/14. 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.
Fri 9/253:35 pm -
Nonstop3h 01m
Mon 10/58:15 pm -
Nonstop2h 49m
Deal found 9/14![Frontier logo]()
$272
This Expedia deal was found by Cheapflights users on 9/12. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/269:20 pm -
1 stop12h 22m
Sat 10/38:15 pm -
Nonstop2h 49m
Deal found 9/12![Frontier logo]()
$221
This Super.com deal was found by Cheapflights users on 9/14. 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.
Sat 9/263:35 pm -
Nonstop3h 01m
Wed 10/218:00 pm -
Nonstop2h 46m
Deal found 9/14![Frontier logo]()
$251
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 September 17, 2026.
Search for one-way flight options from Irvine to Seattle. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:15 pm -
1 stop16h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:00 pm -
1 stop20h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$64
This Super.com deal was found by Cheapflights users on 9/15. 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 10/63:35 pm -
Nonstop3h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$68
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/265:38 pm -
Nonstop3h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$69
This Gotogate deal was found by Cheapflights users on 9/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/133:35 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Frontier logo]()
$70
This CheapOair deal was found by Cheapflights users on 9/16. 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.
Tue 10/203:35 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$71
This Trip.com deal was found by Cheapflights users on 9/16. 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.
Sat 10/313:41 pm -
Nonstop3h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Frontier logo]()
$72
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:35 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Wed 12/99:59 pm -
1 stop21h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![Frontier logo]()
$74
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/173:35 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 9/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:35 pm -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Frontier logo]()
$80
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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $79 (Super.com) |
One-way from | $59 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $260 |
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 7,457,451 searches. Data last updated September 17, 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 Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Wed 12/2
7:20 am-4:00 pm
2 stops8h 40m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$129
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Tue 10/6
11:25 am-11:00 pm
2 stops11h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$134
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Fri 10/23
4:30 pm-9:00 pm
1 stop4h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$134
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Thu 10/29
4:30 pm-9:00 pm
1 stop4h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$135
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Mon 10/19
4:00 pm-10:35 pm
1 stop6h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$139
Quickest round-trip
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Wed 10/21
5:40 pm-8:27 pm
Nonstop2h 47m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$154
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Fri 11/6
12:45 pm-8:05 pm
2 stops7h 20m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$159
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Thu 11/26
9:43 am-12:40 pm
Nonstop2h 57m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$169
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Fri 10/16
7:10 pm-9:58 pm
Nonstop2h 48m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$169
Los AngelesSeattle
LAX Los Angeles - SEA Seattle/Tacoma Intl
LAXSEA
Los Angeles
Thu 10/15
6:35 am-5:33 pm
1 stop10h 58m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$174
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
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 September 17, 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 12% 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 September 17, 2026.
The most flights from IR9 to SEA are scheduled on a Tuesday (109 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (63 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 $202 and $351 in October.The cheapest round-trip price found within the last 5 days was $79 on Frontier (Oct 29-Oct 31).
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 September 12, 2026.
Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Tuesday mornings 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 September 17, 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.
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Overall
7.9
Boarding
8.1
Comfort
7.8
Entertainment
7.0
Crew
8.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Related info for your journey
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Book flights to Seattle if you plan to visit one of these locationsSeaTac
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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 7,457,451 searches. Data last updated September 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$200 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$88 | Average$317 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$277 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$137 | Average$299 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$150 | Average$338 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$168 | Average$355 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$189 | Average$317 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$227 | Average$506 | FlexibilityNo cancel fee | On-time71% |