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$72+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Seattle/Tacoma Intl are usually found in January or February, booked 58 days in advance, depart on a Friday or Saturday and return on a Friday

Find flight deals from Irvine to Seattle

Cheapest flights from Irvine to Seattle
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 October 30, 2025.

This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/199:36 pmLAX - SEA
Nonstop3h 06mFrontier
Thu 1/16:00 amSEA - LAX
Nonstop2h 46mFrontier
Deal found 10/29$121
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mFrontier
Sun 12/142:25 pmSEA - LAX
Nonstop2h 45mFrontier
Deal found 10/27$122
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/216:00 amLAX - SEA
1 stop7h 22mMultiple Airlines
Mon 11/243:22 pmSEA - LAX
Nonstop2h 45mMultiple Airlines
Deal found 10/28$123
This CheapOair deal was found by Cheapflights users on 10/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:41 pmLAX - SEA
Nonstop2h 56mFrontier
Sun 1/46:00 amSEA - LAX
Nonstop2h 46mFrontier
Deal found 10/29$124
This Priceline deal was found by Cheapflights users on 10/27. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1310:24 amLAX - SEA
Nonstop3h 06mFrontier
Sat 12/206:00 amSEA - LAX
Nonstop2h 46mFrontier
Deal found 10/27$125
This Kiwi.com deal was found by Cheapflights users on 10/27. 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.
Fri 11/1411:56 amLAX - SEA
1 stop6h 36mMultiple Airlines
Sun 11/1611:43 amSEA - LAX
1 stop22h 01mMultiple Airlines
Deal found 10/27$126
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 11/139:04 amLAX - SEA
1 stop9h 28mMultiple Airlines
Sun 11/1611:43 amSEA - LAX
1 stop22h 01mMultiple Airlines
Deal found 10/28$127
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/269:36 pmLAX - SEA
Nonstop3h 06mFrontier
Fri 1/26:15 amSEA - LAX
Nonstop2h 46mFrontier
Deal found 10/27$128
This Orbitz deal was found by Cheapflights users on 10/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:45 pmLAX - SEA
1 stop11h 15mMultiple Airlines
Sat 1/36:00 amSEA - LAX
Nonstop2h 46mMultiple Airlines
Deal found 10/28$129
This CheapOair deal was found by Cheapflights users on 10/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:40 amLAX - SEA
1 stop29h 13mFrontier
Sun 12/72:25 pmSEA - LAX
Nonstop2h 45mFrontier
Deal found 10/27$130
This Frontier deal was found by Cheapflights users on 10/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:40 amLAX - SEA
Nonstop2h 57mFrontier
Sat 11/223:22 pmSEA - LAX
Nonstop2h 45mFrontier
Deal found 10/27$131
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/146:10 amLAX - SEA
1 stop12h 22mMultiple Airlines
Mon 11/1711:43 amSEA - LAX
1 stop8h 10mMultiple Airlines
Deal found 10/29$132

Cheap flight deals from Irvine to Seattle

Keep the following information in mind while searching for Irvine to Seattle flight deals. Data was last updated October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$121
(Frontier)

One-way from

$72
(Priceline)

Popular in

July

Cheapest in

January

Average price

$237
Provider with most accurate pricing for Los Angeles-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Seattle/Tacoma Intl flights.
Search Deals
From Irvine to Seattle/Tacoma Intl
Search Deals
One-way flight from Irvine to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 30, 2025.
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 1/31

8:25 am-12:40 pm

1 stop4h 15m

Seattle/Tacoma Intl

Tue 2/3

11:20 am-3:15 pm

1 stop3h 55m

$150

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 12/3

2:15 pm-5:11 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Tue 12/9

10:25 am-1:15 pm

Nonstop2h 50m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 1/31

7:20 am-10:18 am

Nonstop2h 58m

Seattle/Tacoma Intl

Sat 2/7

9:49 am-12:34 pm

Nonstop2h 45m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 12/3

11:40 am-2:44 pm

Nonstop3h 04m

Seattle/Tacoma Intl

Sat 12/13

8:20 pm-11:13 pm

Nonstop2h 53m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 2/24

7:00 am-10:01 am

Nonstop3h 01m

Seattle/Tacoma Intl

Tue 3/3

2:00 pm-4:47 pm

Nonstop2h 47m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 2/28

7:00 am-10:01 am

Nonstop3h 01m

Seattle/Tacoma Intl

Tue 3/3

5:59 pm-8:46 pm

Nonstop2h 47m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 12/2

5:54 pm-8:50 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Wed 12/10

2:05 pm-4:48 pm

Nonstop2h 43m

$157

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 1/31

9:30 am-12:29 pm

Nonstop2h 59m

Seattle/Tacoma Intl

Sun 2/8

8:15 pm-10:59 pm

Nonstop2h 44m

$167

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 3/7

7:00 am-9:56 am

Nonstop2h 56m

Seattle/Tacoma Intl

Tue 3/10

7:00 am-12:40 pm

1 stop5h 40m

$167

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 12/3

5:54 pm-8:50 pm

Nonstop2h 56m

Seattle/Tacoma Intl

Thu 12/11

8:20 pm-11:13 pm

Nonstop2h 53m

$167

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 22 results
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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 October 24, 2025.

The best time to book flights from Irvine to Seattle is 58 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 $38). 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 October 30, 2025.

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 evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 4% 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 October 26, 2025.

Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Tuesday mornings when fares are most often at their lowest. Monday at noon 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 October 30, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and United 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.
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
11,214 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Delta
7.9
Good
7,993 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Spirit Airlines
6.3
Okay
8,115 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Frontier
5.8
Fair
3,123 reviews
Alaska Airlines
8.0
Very good
11,214 reviews

Entertainment

7.0

Comfort

7.8

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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.

  • What airport do you fly into for flights to Seattle from Irvine?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Irvine to Seattle. You should not have trouble finding flights to Seattle/Tacoma Intl from Irvine; the airport handles an average of 62 inbound flights from Irvine per day. You should also have plenty of airline options to choose from since 8 airlines have flights to the Seattle airport from Irvine. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How popular is this Irvine to Seattle flight route?

    Flights from Irvine to Seattle/Tacoma Intl have been viewed 325 times in the past calendar month.

  • How long is the flight from Irvine to Seattle?

    For as low as $157, Southwest can have you in Seattle from Irvine in 2h 56m. The distance from Irvine to Seattle is about 954 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from Irvine to Seattle?

    Before booking your flight to Seattle from Irvine, check out the most reliable airlines to get you to your destination on time: SAUDIA (100%), Aer Lingus (100%), Horizon Air( 100%).

  • What are the cheapest flights from Irvine to Seattle?

    The cheapest flight price from Irvine to Seattle is $66. On average you can expect to pay $739. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $61.

  • Can I find deals for flights from Irvine to Seattle that include hotel bookings?

    Yes. In addition to deals on Irvine to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Irvine to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Irvine to Seattle.

  • Can I find deals for business class flights from Irvine to Seattle?

    Yes. Cheapflights offers flight deals from Irvine to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $38). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Olympia
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Kirkland
Lacey
Kent
Federal Way
Cle Elum
Marysville
Puyallup
Chehalis
Fife
Issaquah

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Irvine to Seattle

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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 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$50Average$172FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$72Average$188FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$278FlexibilityNo cancel feeOn-time85%
DeltaCheapest$119Average$260FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$261FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$148Average$275FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$167Average$312FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$177Average$359FlexibilityNo cancel feeOn-time71%

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