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$139+ Cheap flights from San Luis Obispo to Seattle (SBP - 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
SBP — SEA
Jul 24 — Jul 311
Fri 7/24
Fri 7/31
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Luis Obispo County to Seattle/Tacoma Intl are usually found in January or October, booked 44 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap flight deals from San Luis Obispo to Seattle

Cheapest flights from San Luis Obispo to Seattle
Explore the most affordable flight options available from San Luis Obispo to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.

This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Tue 9/226:43 pm
SBP
-
SEA
Nonstop2h 27m
Alaska Airlines
Sat 9/267:00 am
SEA
-
SBP
Nonstop2h 38m
Alaska Airlines
Deal found 6/22$257
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 8/296:37 pm
SBP
-
SEA
Nonstop2h 27m
Alaska Airlines
Wed 9/27:00 am
SEA
-
SBP
Nonstop2h 31m
Alaska Airlines
Deal found 6/22$277
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 9/261:50 pm
SBP
-
SEA
2 stops7h 11m
United Airlines
Sat 10/37:11 am
SEA
-
SBP
1 stop4h 51m
United Airlines
Deal found 6/23$282
This Alaska Airlines deal was found by Cheapflights users on 6/22. 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 8/263:24 pm
SBP
-
SEA
1 stop6h 16m
Alaska Airlines
Tue 9/18:48 am
SEA
-
SBP
1 stop5h 56m
Alaska Airlines
Deal found 6/22$297
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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.
Sat 10/106:30 pm
SBP
-
SEA
Nonstop2h 29m
Alaska Airlines
Mon 10/124:50 pm
SEA
-
SBP
1 stop22h 06m
Alaska Airlines
Deal found 6/23$300
This United Airlines deal was found by Cheapflights users on 6/22. 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 8/267:10 am
SBP
-
SEA
2 stops9h 04m
United Airlines
Wed 9/212:15 pm
SEA
-
SBP
1 stop5h 07m
United Airlines
Deal found 6/22$302
This Alaska Airlines deal was found by Cheapflights users on 6/24. 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.
Sat 9/267:33 am
SBP
-
SEA
1 stop6h 05m
Alaska Airlines
Sun 10/47:00 am
SEA
-
SBP
Nonstop2h 29m
Alaska Airlines
Deal found 6/24$307
This United Airlines deal was found by Cheapflights users on 6/23. 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.
Thu 8/204:25 pm
SBP
-
SEA
1 stop5h 16m
United Airlines
Wed 8/265:00 am
SEA
-
SBP
1 stop8h 24m
United Airlines
Deal found 6/23$312

Find flight deals from San Luis Obispo to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from San Luis Obispo (SBP) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(Alaska Airlines)

One-way from

$139
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$417

Good round-trip deal

$424 or less

Good one-way deal

$251 or less
Provider with most accurate pricing for San Luis Obispo County-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Luis Obispo County-Seattle/Tacoma Intl flights.
Search Deals
From San Luis Obispo County to Seattle/Tacoma Intl
Search Deals
One-way flight from San Luis Obispo County to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from San Luis Obispo County to Seattle/Tacoma Intl.
Search Deals
Price to beat on a one-way flight from San Luis Obispo County to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Luis Obispo 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 June 24, 2026.
Use the filters below to find and compare flights from San Luis Obispo to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Thu 10/1

10:18 am-12:45 pm

Nonstop2h 27m

Seattle/Tacoma Intl

Tue 10/6

7:00 am-9:29 am

Nonstop2h 29m

$307

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Tue 8/4

8:28 pm-1:13 am

1 stop4h 45m

Seattle/Tacoma Intl

Wed 8/12

12:15 pm-5:22 pm

1 stop5h 07m

$347

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Wed 7/15

6:05 pm-1:29 am

2 stops7h 24m

Seattle/Tacoma Intl

Sat 7/18

7:00 am-11:38 am

1 stop4h 38m

$352

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Fri 10/2

6:43 pm-9:10 pm

Nonstop2h 27m

Seattle/Tacoma Intl

Sun 10/11

7:00 am-9:29 am

Nonstop2h 29m

$366

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Tue 8/4

6:00 am-4:20 pm

2 stops10h 20m

Seattle/Tacoma Intl

Fri 8/14

7:00 am-11:53 am

1 stop4h 53m

$373

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Wed 7/15

6:04 am-8:35 pm

1 stop14h 31m

Seattle/Tacoma Intl

Sat 7/18

7:40 am-10:10 am

Nonstop2h 30m

$405
Cheapest one-way

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Tue 9/8

8:11 am-6:29 pm

2 stops10h 18m

$154

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Thu 10/1

3:24 pm-9:40 pm

1 stop6h 16m

$179

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Thu 8/20

4:25 pm-11:26 pm

2 stops7h 01m

$184

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Wed 8/19

10:11 am-12:38 pm

Nonstop2h 27m

$189

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

Compare providers for flights from San Luis Obispo to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Luis Obispo to Seattle in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Luis Obispo-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Luis Obispo-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Luis Obispo-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Luis Obispo-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Luis Obispo-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Luis Obispo to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from San Luis Obispo 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 San Luis Obispo to Seattle

How far ahead should I book a flight from San Luis Obispo to Seattle?

To ensure you get the cheapest price possible for a flight from San Luis Obispo to Seattle, you should look to book at least 42 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Luis Obispo to Seattle?

Currently, January is the cheapest month in which you can book a flight from San Luis Obispo to Seattle (average of $167). Flying from San Luis Obispo to Seattle in November is currently the most expensive (average of $497). 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 SBP to SEA?

Find hourly flight availability from San Luis Obispo 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 June 24, 2026.

A simple way to save on the total cost of your ticket is to fly from San Luis Obispo to Seattle in the evening. If you’re flexible enough to do this you can expect to save up to 37% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from San Luis Obispo to Seattle?

Use this chart to determine the cheapest time to fly round-trip from San Luis Obispo to Seattle. Price data was last updated on June 20, 2026.

Travelers seeking maximum savings on their San Luis Obispo to Seattle flight should consider departing on Monday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from San Luis Obispo 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 June 24, 2026.
Read through reviews of airlines operating flights from San Luis Obispo to Seattle, such as Alaska Airlines,Hawaiian Airlines, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,566 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Alaska Airlines
7.9
Good
12,566 reviews
Alaska Airlines
7.9
Good
12,566 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
Hawaiian Airlines
7.8
Good
2,826 reviews
Alaska Airlines
7.9
Good
12,566 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.
United Airlines
7.4
Good
9,879 reviews
Alaska Airlines
7.9
Good
12,566 reviews

Comfort

7.8

Food

7.0

Entertainment

7.0

Boarding

8.1

Crew

8.5

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2026

RDU - SEA

There was almost a 2 hour delay after arriving before our next flight. Also my husband needed a wheelchair and it seemed hard to get help.

Related info for your journey

Find useful and relevant information for your journey from San Luis Obispo to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Luis Obispo to Seattle?

    Booking a flight from San Luis Obispo County (SBP) to Seattle/Tacoma Intl (SEA) is your only option if you wish to fly from San Luis Obispo to Seattle. On a typical day, there are 3 flights from County to Seattle/Tacoma Intl, all of which are around 2h 24m for a nonstop flight. You can also purchase a plane ticket from 3 airlines when you book a flight from County to Seattle.

  • How popular is this San Luis Obispo to Seattle flight route?

    Flights from San Luis Obispo County to Seattle/Tacoma Intl have been viewed 5 times in the past calendar month.

  • How long is the flight from San Luis Obispo to Seattle?

    Departing from San Luis Obispo to Seattle will take you 2h 27m. San Luis Obispo and Seattle are separated by a distance of 848 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from San Luis Obispo to Seattle round-trip?

    According to our current data, Hawaiian Airlines ($120), Alaska Airlines ($151), and United Airlines ($177) offers the cheapest pricing from San Luis Obispo to Seattle. You may be able to fly from San Luis Obispo to Seattle for 63% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Luis Obispo to Seattle one-way?

    $83 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $98 and $98, respectively.

  • What are the most reliable airlines from San Luis Obispo to Seattle?

    No one likes to see their flight delayed. When booking a flight from San Luis Obispo to Seattle consider choosing Finnair (100%), SkyWest Airlines (86%) or Horizon Air (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Luis Obispo to Seattle?

    Looking at all options, your cheapest flight can be booked for $198. While the most popular route (San Luis Obispo County - Seattle/Tacoma Intl) can be booked for $277 on average, our data indicates $442 when flying from San Luis Obispo to Seattle.

  • Can I find deals for flights from San Luis Obispo to Seattle that include hotel bookings?

    Yes. In addition to deals on San Luis Obispo to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Luis Obispo to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Luis Obispo to Seattle.

  • Can I find deals for business class flights from San Luis Obispo to Seattle?

    Yes. Cheapflights offers flight deals from San Luis Obispo 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 San Luis Obispo to Seattle?

    Currently, January is the cheapest month in which you can book a flight from San Luis Obispo to Seattle (average of $167). Flying from San Luis Obispo to Seattle in November is currently the most expensive (average of $497). 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
Tacoma
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Olympia
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Edmonds
Snoqualmie
Tumwater
Tukwila
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Top 3 airlines flying from San Luis Obispo to Seattle

Discover the top 3 airlines that operate flights from San Luis Obispo 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 June 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$120Average$236FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$151Average$377FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$177Average$434FlexibilityNo cancel feeOn-time69%

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