$89 Cheap Flights from San Luis Obispo (SBP) to Seattle (SEA)

View $89 flight on Thu, Aug 14, 2025Opens in a new window

Popular airlines from San Luis Obispo County Regional Airport (SBP) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from San Luis Obispo to Seattle (SBP-SEA)

Prices were available within the past 7 days and start at $89 for one-way flights and $157 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Aug 14 - Fri, Aug 22
SBP
San Luis Obispo
SEA
Seattle
$157 Roundtrip, just found
$157
Roundtrip
just found
Select United flight, departing Thu, Aug 14 from San Luis Obispo to Seattle, returning Fri, Aug 22, priced at $157 just found
United
Tue, Sep 9 - Tue, Sep 16
SBP
San Luis Obispo
SEA
Seattle
$171 Roundtrip, just found
$171
Roundtrip
just found
Select United flight, departing Tue, Sep 9 from San Luis Obispo to Seattle, returning Tue, Sep 16, priced at $171 just found
United
Sat, Oct 4 - Tue, Oct 7
SBP
San Luis Obispo
SEA
Seattle
$176 Roundtrip, found 3 hours ago
$176
Roundtrip
found 3 hours ago
Select United flight, departing Sat, Oct 4 from San Luis Obispo to Seattle, returning Tue, Oct 7, priced at $176 found 3 hours ago
American Airlines
Thu, Sep 11 - Sat, Sep 13
SBP
San Luis Obispo
SEA
Seattle
$177 Roundtrip, found 4 hours ago
$177
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Sep 11 from San Luis Obispo to Seattle, returning Sat, Sep 13, priced at $177 found 4 hours ago
United
Thu, Aug 14 - Fri, Aug 22
SBP
San Luis Obispo
SEA
Seattle
$177 Roundtrip, just found
$177
Roundtrip
just found
Select United flight, departing Thu, Aug 14 from San Luis Obispo to Seattle, returning Fri, Aug 22, priced at $177 just found
United
Tue, Sep 9 - Tue, Sep 16
SBP
San Luis Obispo
SEA
Seattle
$178 Roundtrip, just found
$178
Roundtrip
just found
Select United flight, departing Tue, Sep 9 from San Luis Obispo to Seattle, returning Tue, Sep 16, priced at $178 just found
United
Wed, Aug 13 - Wed, Aug 20
SBP
San Luis Obispo
SEA
Seattle
$181 Roundtrip, found 1 hour ago
$181
Roundtrip
found 1 hour ago
Select United flight, departing Wed, Aug 13 from San Luis Obispo to Seattle, returning Wed, Aug 20, priced at $181 found 1 hour ago
United
Mon, Sep 8 - Mon, Sep 15
SBP
San Luis Obispo
SEA
Seattle
$185 Roundtrip, found 1 hour ago
$185
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Sep 8 from San Luis Obispo to Seattle, returning Mon, Sep 15, priced at $185 found 1 hour ago
Hawaiian Airlines
Wed, Sep 24 - Sat, Sep 27
SBP
San Luis Obispo
SEA
Seattle
$197 Roundtrip, found 6 hours ago
$197
Roundtrip
found 6 hours ago
Select Hawaiian Airlines flight, departing Wed, Sep 24 from San Luis Obispo to Seattle, returning Sat, Sep 27, priced at $197 found 6 hours ago
Alaska Airlines
Tue, Sep 9 - Tue, Sep 16
SBP
San Luis Obispo
SEA
Seattle
$198 Roundtrip, just found
$198
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Sep 9 from San Luis Obispo to Seattle, returning Tue, Sep 16, priced at $198 just found

Find the cheapest month to fly from San Luis Obispo (SBP) to Seattle (SEA)

January is typically the cheapest month to fly

From $136 - $346 per traveler.

Graph displaying average flight prices per month

Flights from San Luis Obispo (SBP) to Seattle (SEA)
Origin airport
San Luis Obispo County Regional
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines, United
Roundtrip price
$156
Distance
847 mi
Average flight time
2 hours 25 mins

San Luis Obispo to Seattle Flights

The cheapest times to fly from San Luis Obispo to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Luis Obispo to Seattle are during the month of August. You can find some of the cheapest flights from San Luis Obispo to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Luis Obispo to Seattle

Sunday is one of the best days to book for cheap flights from San Luis Obispo to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Luis Obispo to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Luis Obispo to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $89 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Luis Obispo to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Luis Obispo to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA) cost?
Cheap round-trip flights from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA) start from $193. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving SBP on July 23 2025 and touching down at SEA. The price was last updated on June 26 2025 and has not changed since.
What is the cheapest month to fly from SBP to SEA?
To score a cheap fare, check for direct flights from SBP to SEA leaving in October. You can find a one-way Alaska Airlines flight for $119 leaving on October 21 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on June 26 2025 and remains unchanged.
Which airlines fly direct from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
When flying out of San Luis Obispo County Regional Airport (SBP), you can jump on a nonstop flight to Seattle - Tacoma Intl. Airport (SEA) with Alaska Airlines.
What is the cheapest airline that flies from SBP to SEA?
With tickets starting at $119 for a one-way journey from SBP to SEA, Alaska Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from SBP on September 20 2025. Prices were last updated on June 26 2025 and have not changed since.
How many flights per day from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
On average, San Luis Obispo County Regional Airport (SBP) only offers 1 direct flight to Seattle - Tacoma Intl. Airport (SEA) each day. For more choices, try Expedia's easy-to-use filters. Just enter your travel details, then select "1 Stop" or "2+ Stops" to find flights with layovers.
What are the most popular departure times for flights from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
More people fly between SBP and SEA at 4 PM than at any other time. Rather go when it's quieter? Pick a flight outside the busiest times and you could save on your fare as well.
What day of the week has the most flights from SBP to SEA?
If you fly on a Friday, you'll get the greatest range of options for flights from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
Take the earliest flight at around 4:15PM UTC-8, heading out of San Luis Obispo County Regional Airport (SBP). You'll be flying for approximately 2h 33m, landing at Seattle - Tacoma Intl. Airport (SEA) at approximately 6:48PM UTC-8.
How long does it take to fly from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
The average flight duration from SBP to SEA is 2 hours and 33 minutes, covering a total distance of 850 mi.
What airline has the least delays from SBP to SEA?
With 87% of flights typically landing on time, Alaska Airlines has the best on-time performance for direct flights from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA). To check your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
To touch down at Seattle - Tacoma Intl. Airport (SEA) on time, book a flight that takes off from San Luis Obispo County Regional Airport (SBP) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Seattle from San Luis Obispo County Regional Airport (SBP)?
Check out your flight options from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA). This is the only airport in Seattle you can fly into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Last-minute fares from SBP to SEA are typically more expensive. To lock in the cheapest rates, start looking for flights early. That said, if you're flexible with your travel plans, you may score a cheap fare right before your trip.
Is it cheaper to book a SBP to SEA flight and hotel package?
Compared with arranging flights and hotels separately, booking a SBP to SEA flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place will take the stress out of planning your trip. Simply pick your flights and choose from our wide range of hotels, then tailor your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from San Luis Obispo County Regional Airport (SBP) to Seattle - Tacoma Intl. Airport (SEA)?
In most instances, you can reschedule or cancel your SBP to SEA flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you want further details, head to our Customer Service portal.

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