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$48+ 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 3/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — SEA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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The best prices from Irvine to Seattle/Tacoma Intl are usually found in January or September, booked 50 days in advance, depart on a Thursday 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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$68
(Cheapflightsfares)

One-way from

$48
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$227
Provider with most accurate pricing for Los Angeles-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Seattle/Tacoma Intl flights.
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From Irvine to Seattle/Tacoma Intl
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One-way flight from Irvine to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 9% potential increase in price ($23 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 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 febrero 20, 2025.

This Frontier deal was found by Cheapflights users on 2/18. 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.
jue. 5/85:35 pmLAX - SEA
Nonstop3h 07mFrontier
sáb. 5/174:20 pmSEA - LAX
Nonstop2h 45mFrontier
Deal found 2/18$67
This Cheapflightsfares deal was found by Cheapflights users on 2/20. 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.
mié. 3/194:59 pmLAX - SEA
Nonstop3h 00mMultiple Airlines
dom. 3/238:04 pmSEA - LAX
Nonstop2h 48mMultiple Airlines
Deal found 2/20$73
This FlightHub deal was found by Cheapflights users on 2/20. 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.
mié. 3/124:04 pmLAX - SEA
Nonstop2h 58mSpirit Airlines
mar. 3/1812:41 pmSEA - LAX
1 stop6h 18mSpirit Airlines
Deal found 2/20$74
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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.
dom. 3/239:45 amLAX - SEA
Nonstop2h 58mAlaska Airlines
vie. 3/288:09 pmSEA - LAX
Nonstop2h 50mAlaska Airlines
Deal found 2/20$117
This Southwest deal was found by Cheapflights users on 2/20. 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.
dom. 3/235:50 amLAX - SEA
1 stop5h 30mSouthwest
lun. 3/317:00 pmSEA - LAX
1 stop4h 40mSouthwest
Deal found 2/20$151
This Delta deal was found by Cheapflights users on 2/19. 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.
vie. 5/169:10 pmLAX - SEA
Nonstop3h 03mDelta
dom. 5/189:20 pmSEA - LAX
Nonstop2h 46mDelta
Deal found 2/19$177

Find flights from Irvine to Seattle within your budget

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 febrero 20, 2025.

Fly from

Irvine

Fly to

Seattle

Route

Depart

Return

Price

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

mié. 3/12

4:59 pm-7:59 pm

Nonstop3h 00m

Seattle/Tacoma Intl

mié. 3/26

6:53 pm-9:35 pm

Nonstop2h 42m

$68

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

mar. 4/15

7:29 pm-11:35 am

1 stop16h 06m

Seattle/Tacoma Intl

mié. 4/16

2:30 pm-5:23 pm

Nonstop2h 53m

$72

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

mié. 3/19

4:59 pm-7:59 pm

Nonstop3h 00m

Seattle/Tacoma Intl

sáb. 3/22

8:04 pm-10:52 pm

Nonstop2h 48m

$73

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

dom. 3/23

7:00 am-9:58 am

Nonstop2h 58m

Seattle/Tacoma Intl

vie. 3/28

5:58 pm-8:46 pm

Nonstop2h 48m

$117

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

dom. 3/23

5:50 am-11:20 am

1 stop5h 30m

Seattle/Tacoma Intl

sáb. 3/29

7:05 pm-12:15 am

1 stop5h 10m

$151

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

sáb. 4/12

9:45 am-12:43 pm

Nonstop2h 58m

Seattle/Tacoma Intl

dom. 4/13

7:55 pm-7:30 am

1 stop11h 35m

$180

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

sáb. 3/22

4:11 pm-7:09 pm

Nonstop2h 58m

$48

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

sáb. 4/26

5:35 pm-8:35 pm

Nonstop3h 00m

$49

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

vie. 3/14

8:15 pm-11:13 pm

Nonstop2h 58m

$59

Los AngelesSeattle

LAX - SEA

LAXSEA

Los Angeles

sáb. 4/5

6:25 pm-10:35 pm

1 stop4h 10m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 15 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.

Travel insights for flights from Irvine to Seattle

Get recent, data-driven insights about flights from Irvine to Seattle including ideal travel times, pricing trends, and more.

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 February 14, 2025.

The best time to book flights from Irvine to Seattle is 29 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 July is currently the most expensive (average of $411). 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 febrero 20, 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 February 16, 2025.

Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Friday at noon when fares are most often at their lowest. Sunday afternoons 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 febrero 20, 2025.

The most flights from IR9 to SEA are scheduled on a Thursday (122 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (42 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 febrero 20, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Irvine to Seattle. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

Hawaiian Airlines
7.9
Good
2,317 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Comfort

8.1

Food

7.1

Entertainment

7.6

Overall

8.1

Crew

8.7

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Tim,Jul 2024

DEN - SEA

Sheila did great! First time I have ever seen all three people in an exit row get out and read the safety information card AFTER the briefing. I like the boarding process. It seems a shame to UN-differentiate SW because of abuse of the early boarding process.

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 83 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 310 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 Spirit Airlines. According to our data, you can fly for as low as $48. Users have also found prices from $49 and $59 on Frontier and Delta, 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: Air Chathams (100%), WestJet (99%), EL AL( 97%).

  • What are the cheapest flights from Irvine to Seattle?

    The cheapest flight price from Irvine to Seattle is $43. On average you can expect to pay $624. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $58.

  • 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 July is currently the most expensive (average of $411). 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 Irvine?

Book flights to Irvine if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Ocean Shores
Leavenworth
Olympia
Federal Way
Centralia
Marysville
Cle Elum
Mukilteo
Aberdeen
Lakewood
Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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Top 7 airlines flying from Irvine to Seattle

Discover the top 7 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$138FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$61Average$145FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$78Average$268FlexibilityNo cancel feeOn-time75%
DeltaCheapest$107Average$280FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$157Average$348FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$157Average$373FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$176Average$358FlexibilityNo cancel feeOn-time63%
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