HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Seattle

$84+ 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 11/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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 January or February, booked 58 days in advance, depart on a Friday or Saturday and return on a Thursday

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 September 15, 2025.

Round-trip from

$142
(Priceline)

One-way from

$84
(Cheapflightsfares)

Popular in

July

Cheapest in

January

Average price

$237
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. 15% potential increase in price ($37 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

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 September 15, 2025.

This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:21 amLAX - SEA
1 stop27h 16mFrontier
Thu 11/61:08 pmSEA - LAX
1 stop18h 57mFrontier
Deal found 9/15$144
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/249:33 amLAX - SEA
1 stop5h 43mFrontier
Mon 10/272:31 pmSEA - LAX
1 stop9h 54mFrontier
Deal found 9/14$145
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.
Thu 10/24:45 pmLAX - SEA
Nonstop2h 51mFrontier
Mon 10/61:47 pmSEA - LAX
1 stop6h 05mFrontier
Deal found 9/13$146
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:45 pmLAX - SEA
Nonstop2h 51mFrontier
Sun 10/54:36 pmSEA - LAX
1 stop20h 32mFrontier
Deal found 9/13$147
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1210:39 amLAX - SEA
1 stop6h 12mFrontier
Sun 12/1411:41 amSEA - LAX
Nonstop2h 48mFrontier
Deal found 9/14$148
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/11:37 pmLAX - SEA
1 stop9h 22mFrontier
Wed 10/81:02 pmSEA - LAX
Nonstop2h 49mFrontier
Deal found 9/13$149
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:35 amLAX - SEA
1 stop17h 55mFrontier
Mon 9/291:47 pmSEA - LAX
1 stop6h 05mFrontier
Deal found 9/13$151
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:41 pmLAX - SEA
Nonstop2h 56mFrontier
Mon 11/102:22 pmSEA - LAX
1 stop6h 05mFrontier
Deal found 9/14$152
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/49:08 pmLAX - SEA
Nonstop2h 51mFrontier
Fri 10/101:02 pmSEA - LAX
Nonstop2h 49mFrontier
Deal found 9/14$153
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:52 pmLAX - SEA
Nonstop2h 56mFrontier
Mon 10/278:43 pmSEA - LAX
1 stop16h 35mFrontier
Deal found 9/14$154
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/74:41 pmLAX - SEA
Nonstop2h 56mFrontier
Sat 11/89:08 amSEA - LAX
Nonstop2h 49mFrontier
Deal found 9/14$155

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 September 15, 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 10/4

9:08 pm-11:59 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Mon 10/6

10:10 am-1:00 pm

Nonstop2h 50m

$143

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/3

9:03 pm-8:39 pm

1 stop23h 36m

Seattle/Tacoma Intl

Mon 10/6

1:47 pm-7:52 pm

1 stop6h 05m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 10/2

8:14 pm-3:45 pm

1 stop19h 31m

Seattle/Tacoma Intl

Sun 10/5

4:36 pm-7:30 pm

1 stop26h 54m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/17

9:17 pm-12:07 pm

1 stop14h 50m

Seattle/Tacoma Intl

Sun 10/19

7:28 pm-7:53 pm

1 stop24h 25m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Fri 10/24

9:33 am-3:16 pm

1 stop5h 43m

Seattle/Tacoma Intl

Sun 10/26

4:11 pm-1:35 pm

1 stop21h 24m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 10/16

8:40 pm-3:16 pm

1 stop18h 36m

Seattle/Tacoma Intl

Sun 10/19

8:43 pm-7:35 am

1 stop10h 52m

$144

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Sun 9/28

6:35 am-12:30 am

1 stop17h 55m

Seattle/Tacoma Intl

Mon 9/29

1:47 pm-7:52 pm

1 stop6h 05m

$158

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Mon 10/6

4:45 pm-7:36 pm

Nonstop2h 51m

Seattle/Tacoma Intl

Tue 10/7

1:02 pm-12:25 am

1 stop11h 23m

$159

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Thu 9/25

6:35 am-12:30 am

1 stop17h 55m

Seattle/Tacoma Intl

Sat 9/27

9:39 pm-12:29 am

Nonstop2h 50m

$178

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

Tue 12/16

7:25 am-11:35 am

1 stop4h 10m

$95

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 18 results
1
2

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 September 12, 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 $387). 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 September 15, 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 September 14, 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 September 15, 2025.

The most flights from IR9 to SEA are scheduled on a Monday (128 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (81 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 September 15, 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
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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
8,929 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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
8,015 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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
3,172 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Overall

8.0

Comfort

7.8

Food

7.1

Crew

8.5

Boarding

8.1

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 101 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 317 times in the past calendar month.

  • How long is the flight from Irvine to Seattle?

    For as low as $143, Frontier can have you in Seattle from Irvine in 2h 51m. The distance from Irvine to Seattle is about 954 mi. Generally, flights for this route are nonstop.

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

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $95. Users have also found prices from $98 and $108 on Frontier and Alaska 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: SAUDIA (96%), EL AL (93%), Finnair( 92%).

  • What are the cheapest flights from Irvine to Seattle?

    The cheapest flight price from Irvine to Seattle is $77. On average you can expect to pay $529. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $84.

  • 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 $387). 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
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Renton
Lacey
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
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.

Alternative routes for Irvine to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Seattle flights
Ontario to Seattle flights
San Francisco to Seattle flights
Santa Ana to Seattle flights
San Jose to Seattle flights
Los Angeles to Portland flights
San Diego to Seattle flights
Ontario to Portland flights
San Francisco to Portland flights
Burbank to Seattle flights
Oakland to Seattle flights
Los Angeles to Everett flights
Sacramento to Seattle flights
Santa Ana to Portland flights
Las Vegas to Seattle flights
San Diego to Portland flights
Oakland to Portland flights
Burbank to Portland flights
San Francisco to Everett flights
San Diego to Everett flights
Fresno to Seattle flights
Sacramento to Portland flights
San Jose to Portland flights
Santa Rosa to Seattle flights
Santa Barbara to Seattle flights
Long Beach to Seattle flights
San Luis Obispo to Seattle flights
Las Vegas to Everett flights
Los Angeles to Spokane flights
Santa Ana to Everett flights
Las Vegas to Portland flights
Palm Springs to Portland flights
Reno to Portland flights
Santa Rosa to Portland flights
Fresno to Portland flights
San Francisco to Spokane flights
Monterey to Seattle flights
Palm Springs to Seattle flights
Medford to Seattle flights
Santa Barbara to Portland flights
San Diego to Spokane flights
Reno to Seattle flights
San Jose to Everett flights
San Luis Obispo to Portland flights
Long Beach to Portland flights
Ontario to Spokane flights
Santa Ana to Spokane flights
Las Vegas to Spokane flights
Los Angeles to Pasco flights
Sacramento to Spokane flights

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 September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$48Average$171FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$65Average$183FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$98Average$279FlexibilityNo cancel feeOn-time85%
DeltaCheapest$117Average$276FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$138Average$274FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$149Average$270FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$159Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$163Average$350FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.