How popular is this Irvine to Seattle flight route?

Flights from Irvine to Seattle/Tacoma Intl have been viewed 272 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 $32. Users have also found prices from $86 and $87 on United Airlines and Delta, respectively.

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.

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).

What are the cheapest flights from Irvine to Seattle?

The cheapest flight price from Irvine to Seattle is $74. On average you can expect to pay $1,020. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $151.

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: WestJet (93%), Aer Lingus (90%), Fiji Airways( 88%).

What are the most popular airlines that fly from Irvine to Seattle?

Frontier, Alaska Airlines and Delta are the most popular airlines when flying from Irvine to Seattle.

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 39 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.

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.

Find Cheap Flights from Irvine to Seattle

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Cheapflights Tip: The best prices from Irvine to Seattle/Tacoma Intl are usually found in March or May, booked 70 days in advance, depart on a Thursday or Friday and return on a Thursday

Find flight deals from Irvine to Seattle

Most accurate provider	FlightHub 3 stars
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Popular in	June
Cheapest in	March
Average price	$241

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Highest demand for flights based on searches. 8% potential increase in price ($24 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 October 2026

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Everything you need to know about your flight from Irvine to Seattle

What is the cheapest time of day to fly from IR9 to SEA?

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 12% on airfare.

What is the cheapest day to fly from Irvine to Seattle?

Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines,Delta, andUnited 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

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Alaska Airlines

7.9

Good

13,138 reviews

Alaska Airlines

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Delta

7.8

Good

8,699 reviews

Alaska Airlines

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

United Airlines

7.3

Good

10,461 reviews

Alaska Airlines

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

American Airlines

7.0

Good

12,223 reviews

Alaska Airlines

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Frontier

5.5

Fair

2,515 reviews

Alaska Airlines

7.9

Good

13,138 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

Related info for your journey

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 39 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 272 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 $32. Users have also found prices from $86 and $87 on United Airlines 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: WestJet (93%), Aer Lingus (90%), Fiji Airways( 88%).
What are the cheapest flights from Irvine to Seattle?
The cheapest flight price from Irvine to Seattle is $74. On average you can expect to pay $1,020. The most popular route, (Los Angeles - Seattle/Tacoma Intl), can usually be booked for $151.
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.

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Top 8 airlines flying from Irvine to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$44	Average$199	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$99	Average$287	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$137	Average$307	FlexibilityNo cancel fee	On-time75%
Southwest	Cheapest$150	Average$345	FlexibilityNo cancel fee	On-time63%
JetBlue	Cheapest$157	Average$309	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$166	Average$358	FlexibilityNo cancel fee	On-time69%
Hawaiian Airlines	Cheapest$194	Average$342	FlexibilityNo cancel fee	On-time85%
American Airlines	Cheapest$227	Average$481	FlexibilityNo cancel fee	On-time71%

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Cheap flights from Irvine, CA to Seattle (SEA)

Find cheap flights from Irvine to Seattle with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Find flight deals from Irvine to Seattle

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Cheapflights Insights

What is the cheapest time of day to fly from IR9 to SEA?

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 12% on airfare.

What is the cheapest day to fly from Irvine to Seattle?

Travelers seeking maximum savings on their Irvine to Seattle flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Seattle

See what other customers who have flown with Alaska Airlines,Delta, andUnited 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.

Related info for your journey

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

How popular is this Irvine to Seattle flight route?

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

What are the most reliable airlines from Irvine to Seattle?

What are the cheapest flights from Irvine to Seattle?

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

How can I find direct flights from Irvine to Seattle?

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

Traveling to a place near Seattle?

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Alternative routes for Irvine to Seattle

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Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Irvine to Seattle by cabin class

Find flights from Irvine to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Irvine and Seattle flights

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