$56+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Feb 28 — Mar 71
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 February or March, booked 61 days in advance, depart on a Friday or Thursday and return on a Thursday
Cheap flight deals from Irvine to Seattle
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 January 29, 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 January 29, 2026.
This Super.com deal was found by Cheapflights users on 1/28. 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 2/198:01 am
LAX
- SEA
Nonstop3h 00m
Frontier
Thu 2/269:28 am
SEA
- LAX
Nonstop2h 53m
Frontier
Deal found 1/28![Frontier logo]()
$87
This Expedia deal was found by Cheapflights users on 1/29. 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 2/198:01 am
LAX
- SEA
Nonstop3h 00m
Frontier
Sun 2/2210:03 am
SEA
- LAX
Nonstop2h 55m
Frontier
Deal found 1/29![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Wed 3/186:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 1/28![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 4/172:45 pm
LAX
- SEA
Nonstop2h 57m
Frontier
Sun 4/1910:42 am
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 1/28![Frontier logo]()
$96
This CheapOair deal was found by Cheapflights users on 1/26. 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 2/186:33 pm
LAX
- SEA
1 stop25h 35m
Frontier
Sat 2/2811:32 am
SEA
- LAX
Nonstop2h 55m
Frontier
Deal found 1/26![Frontier logo]()
$97
This WAYA deal was found by Cheapflights users on 1/27. 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.
Fri 3/69:12 am
LAX
- SEA
1 stop8h 27m
Multiple Airlines
Wed 3/116:24 pm
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/39:12 am
LAX
- SEA
1 stop9h 06m
Multiple Airlines
Tue 3/106:24 pm
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 3/59:12 am
LAX
- SEA
1 stop10h 56m
Multiple Airlines
Tue 3/106:24 pm
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$101
This Frontier deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/172:14 pm
LAX
- SEA
Nonstop2h 55m
Frontier
Sat 3/216:24 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 1/28![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/210:37 pm
LAX
- SEA
1 stop19h 41m
Frontier
Sat 3/75:31 pm
SEA
- LAX
Nonstop2h 48m
Frontier
Deal found 1/28![Frontier logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 2/269:12 am
LAX
- SEA
1 stop10h 56m
Multiple Airlines
Sat 3/75:31 pm
SEA
- LAX
Nonstop2h 48m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$104
This Frontier deal was found by Cheapflights users on 1/28. 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.
Thu 2/269:21 pm
LAX
- SEA
1 stop10h 52m
Frontier
Sat 2/2811:32 am
SEA
- LAX
Nonstop2h 55m
Frontier
Deal found 1/28![Frontier logo]()
$107
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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $87 (Super.com) |
One-way from | $56 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $208 |
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 January 29, 2026.
Use the filters below to find and compare flights from Irvine to Seattle that are best for you.
Fly from
Irvine
Fly to
Seattle
Route
Depart
Return
Price
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 3/14
7:35 am-10:24 am
Nonstop2h 49m
Seattle/Tacoma Intl
Fri 3/20
5:55 pm-8:35 pm
Nonstop2h 40m
$147
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 2/18
7:45 am-10:44 am
Nonstop2h 59m
Seattle/Tacoma Intl
Sun 2/22
8:14 pm-11:03 pm
Nonstop2h 49m
$147
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Sat 3/7
5:35 pm-8:30 pm
Nonstop2h 55m
Seattle/Tacoma Intl
Sun 3/8
9:40 am-12:22 pm
Nonstop2h 42m
$149
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 2/27
8:46 am-11:48 am
Nonstop3h 02m
Seattle/Tacoma Intl
Mon 3/2
10:51 am-1:36 pm
Nonstop2h 45m
$157
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Thu 3/12
2:03 pm-5:00 pm
Nonstop2h 57m
Seattle/Tacoma Intl
Sun 3/15
8:14 pm-11:03 pm
Nonstop2h 49m
$157
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 3/13
5:09 pm-7:59 pm
Nonstop2h 50m
Seattle/Tacoma Intl
Fri 3/20
5:55 pm-8:35 pm
Nonstop2h 40m
$157
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Fri 3/13
6:17 pm-9:15 pm
Nonstop2h 58m
Seattle/Tacoma Intl
Mon 3/16
3:50 pm-6:36 pm
Nonstop2h 46m
$157
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 3/11
2:15 pm-7:30 pm
1 stop5h 15m
Seattle/Tacoma Intl
Mon 3/16
3:45 pm-10:40 pm
1 stop6h 55m
$162
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Wed 2/25
2:30 pm-6:35 pm
1 stop4h 05m
Seattle/Tacoma Intl
Sun 3/1
5:00 am-1:00 pm
1 stop8h 00m
$162
Los AngelesSeattle
LAX - SEA
LAXSEA
Los Angeles
Thu 2/26
1:45 pm-6:50 pm
1 stop5h 05m
Seattle/Tacoma Intl
Sat 2/28
6:50 am-2:20 pm
1 stop7h 30m
$167
Showing 1-10 of 24 results
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.
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
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 January 23, 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, January 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 January 29, 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 7% 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 January 24, 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 January 29, 2026.
The most flights from IR9 to SEA are scheduled on a Thursday (101 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (31 on average).
Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated January 29, 2026.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian 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.
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Boarding
8.1
Food
7.1
Overall
8.0
Crew
8.5
Entertainment
7.0
Comfort
7.8
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 locationsTacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Irvine to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$44 | Average$170 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$45 | Average$175 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$88 | Average$266 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$99 | Average$257 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$281 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$150 | Average$277 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$162 | Average$282 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$177 | Average$420 | FlexibilityNo cancel fee | On-time71% |