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$91+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 Saturday or Friday and return on a Friday

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 July 31, 2025.

Round-trip from

$159
(FlightHub)

One-way from

$91
(FlightHub)

Popular in

July

Cheapest in

January

Average price

$266
From Irvine to Seattle/Tacoma Intl
Search Deals
One-way flight from Irvine to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 17% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 31, 2025.

This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/239:40 pmLAX - SEA
Nonstop2h 51mFrontier
Sat 8/306:25 amSEA - LAX
1 stop14h 18mFrontier
Deal found 7/30$159
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 9/202:06 pmLAX - SEA
1 stop4h 39mMultiple Airlines
Sun 9/2110:10 amSEA - LAX
Nonstop2h 50mMultiple Airlines
Deal found 7/30$161
This Hawaiian Airlines deal was found by Cheapflights users on 7/30. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/272:06 pmLAX - SEA
1 stop4h 39mHawaiian Airlines
Sat 8/3010:08 amSEA - LAX
Nonstop2h 55mHawaiian Airlines
Deal found 7/30$167
This Southwest deal was found by Cheapflights users on 7/31. 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 9/135:40 amLAX - SEA
1 stop5h 45mSouthwest
Sat 9/208:10 amSEA - LAX
1 stop4h 40mSouthwest
Deal found 7/31$172
This Alaska Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2711:00 amLAX - SEA
1 stop4h 33mAlaska Airlines
Sat 8/3012:25 pmSEA - LAX
1 stop9h 21mAlaska Airlines
Deal found 7/31$176
This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/107:22 pmLAX - SEA
Nonstop2h 53mUnited Airlines
Fri 9/196:25 amSEA - LAX
Nonstop2h 45mUnited Airlines
Deal found 7/29$177
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/202:10 pmLAX - SEA
Nonstop2h 41mDelta
Thu 8/2812:15 pmSEA - LAX
Nonstop2h 57mDelta
Deal found 7/29$197

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 July 31, 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 8/23

9:40 pm-12:31 am

Nonstop2h 51m

Seattle/Tacoma Intl

Sat 8/30

6:25 am-8:43 pm

1 stop14h 18m

$159

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 9/20

6:00 am-8:54 am

Nonstop2h 54m

Seattle/Tacoma Intl

Wed 9/24

7:50 am-1:04 pm

1 stop5h 14m

$161

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 8/12

6:00 am-4:25 pm

1 stop10h 25m

Seattle/Tacoma Intl

Thu 8/21

6:11 pm-9:03 pm

Nonstop2h 52m

$166

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sat 9/13

3:20 pm-9:50 pm

1 stop6h 30m

Seattle/Tacoma Intl

Sat 9/20

8:10 am-12:50 pm

1 stop4h 40m

$172

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 8/27

11:00 am-3:33 pm

1 stop4h 33m

Seattle/Tacoma Intl

Sat 8/30

12:25 pm-9:46 pm

1 stop9h 21m

$176

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 9/10

7:22 pm-10:15 pm

Nonstop2h 53m

Seattle/Tacoma Intl

Fri 9/19

6:25 am-9:10 am

Nonstop2h 45m

$177

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 8/20

2:10 pm-4:51 pm

Nonstop2h 41m

Seattle/Tacoma Intl

Thu 8/28

12:15 pm-3:12 pm

Nonstop2h 57m

$197

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sun 8/24

3:46 pm-6:37 pm

Nonstop2h 51m

$91

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 8/26

7:00 am-9:54 am

Nonstop2h 54m

$92

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Wed 8/27

8:00 am-10:54 am

Nonstop2h 54m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 16 results
1
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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 July 25, 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 $238). Flying from Irvine to Seattle in June is currently the most expensive (average of $389). 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 July 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Irvine to Seattle as you normally would.

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 27, 2025.

Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon 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 July 31, 2025.

The most flights from IR9 to SEA are scheduled on a Thursday (137 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (51 on average).

How much does it cost to fly round-trip from Irvine to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated July 31, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta 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
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 88 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 320 times in the past calendar month.

  • What are the cheapest airlines to fly from Irvine to Seattle one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $91. Users have also found prices from $92 and $96 on Alaska Airlines and Hawaiian Airlines, respectively.

  • 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: KLM (99%), China Eastern (97%), WestJet( 92%).

  • What are the cheapest flights from Irvine to Seattle?

    The cheapest flight price from Irvine to Seattle is $90. On average you can expect to pay $1,061. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $111.

  • 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 $238). Flying from Irvine to Seattle in June is currently the most expensive (average of $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$43Average$151FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$65Average$152FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$278FlexibilityNo cancel feeOn-time85%
DeltaCheapest$116Average$283FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$137Average$260FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$150Average$271FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$157Average$365FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$157Average$345FlexibilityNo cancel feeOn-time69%

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