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$79+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
SBP — SEA
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from San Luis Obispo County to Seattle/Tacoma Intl are usually found in January or February, booked 73 days in advance, depart on a Thursday or Friday and return on a Tuesday

Cheap 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 September 16, 2025.

Round-trip from

$157
(Alaska Airlines)

One-way from

$79
(United Airlines)

Popular in

November

Cheapest in

January

Average price

$257

Good round-trip deal

$257 or less

Good one-way deal

$216 or less
From San Luis Obispo County to Seattle/Tacoma Intl
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One-way flight from San Luis Obispo County to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 23% potential increase in price ($90 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Luis Obispo County to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from San Luis Obispo County to Seattle/Tacoma Intl.
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Find 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 September 16, 2025.

This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/217:50 pmSBP - SEA
Nonstop2h 37mAlaska Airlines
Wed 10/294:38 pmSEA - SBP
Nonstop2h 23mAlaska Airlines
Deal found 9/14$157
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/116:25 pmSBP - SEA
1 stop4h 50mUnited Airlines
Tue 11/1812:00 pmSEA - SBP
2 stops9h 34mUnited Airlines
Deal found 9/15$162
This Hawaiian Airlines 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/117:56 pmSBP - SEA
Nonstop2h 34mHawaiian Airlines
Tue 11/184:21 pmSEA - SBP
1 stop7h 05mHawaiian Airlines
Deal found 9/15$167
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:50 pmSBP - SEA
Nonstop2h 37mHawaiian Airlines
Mon 10/64:30 pmSEA - SBP
Nonstop2h 28mHawaiian Airlines
Deal found 9/13$170
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/212:19 pmSBP - SEA
1 stop7h 13mAlaska Airlines
Sat 10/257:15 amSEA - SBP
1 stop6h 19mAlaska Airlines
Deal found 9/14$176
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:25 pmSBP - SEA
1 stop6h 34mUnited Airlines
Sun 11/162:40 pmSEA - SBP
1 stop5h 10mUnited Airlines
Deal found 9/15$177
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:50 pmSBP - SEA
Nonstop2h 37mAlaska Airlines
Sun 10/264:38 pmSEA - SBP
Nonstop2h 23mAlaska Airlines
Deal found 9/14$181
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/212:19 pmSBP - SEA
1 stop7h 13mAlaska Airlines
Tue 10/284:38 pmSEA - SBP
Nonstop2h 23mAlaska Airlines
Deal found 9/14$187
This Hawaiian Airlines deal was found by Cheapflights users on 9/16. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:50 pmSBP - SEA
Nonstop2h 37mHawaiian Airlines
Sun 10/264:38 pmSEA - SBP
Nonstop2h 23mHawaiian Airlines
Deal found 9/16$197
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/12:16 pmSBP - SEA
1 stop6h 35mUnited Airlines
Sat 11/82:41 pmSEA - SBP
1 stop7h 24mUnited Airlines
Deal found 9/15$206

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 September 16, 2025.
Use the filters below to find and compare flights from San Luis Obispo to Seattle that are best for you.

Fly from

San Luis Obispo

Fly to

Seattle

Route

Depart

Return

Price

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Sat 11/8

7:56 pm-10:30 pm

Nonstop2h 34m

Seattle/Tacoma Intl

Tue 11/11

4:38 pm-7:01 pm

Nonstop2h 23m

$157

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Sat 11/8

7:56 pm-10:30 pm

Nonstop2h 34m

Seattle/Tacoma Intl

Tue 11/11

4:38 pm-7:01 pm

Nonstop2h 23m

$157

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Mon 10/13

4:00 pm-9:53 pm

1 stop5h 53m

Seattle/Tacoma Intl

Wed 10/15

6:35 am-2:04 pm

1 stop7h 29m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Thu 1/29

7:25 pm-9:45 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Wed 2/4

3:55 pm-6:22 pm

Nonstop2h 27m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Sat 10/11

2:19 pm-9:15 pm

1 stop6h 56m

Seattle/Tacoma Intl

Sun 10/19

6:35 am-2:04 pm

1 stop7h 29m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Fri 2/27

7:25 pm-9:45 pm

Nonstop2h 20m

Seattle/Tacoma Intl

Tue 3/3

3:55 pm-6:22 pm

Nonstop2h 27m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Fri 11/14

7:56 pm-10:30 pm

Nonstop2h 34m

Seattle/Tacoma Intl

Sat 11/15

4:38 pm-7:01 pm

Nonstop2h 23m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Wed 10/29

7:56 pm-10:30 pm

Nonstop2h 34m

Seattle/Tacoma Intl

Sun 11/2

4:38 pm-7:01 pm

Nonstop2h 23m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Sat 10/25

7:50 pm-10:27 pm

Nonstop2h 37m

Seattle/Tacoma Intl

Sun 10/26

4:38 pm-7:01 pm

Nonstop2h 23m

$177

San Luis ObispoSeattle

SBP - SEA

SBPSEA

San Luis Obispo County

Thu 11/13

7:56 pm-10:30 pm

Nonstop2h 34m

Seattle/Tacoma Intl

Sat 11/15

4:38 pm-7:01 pm

Nonstop2h 23m

$177

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 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?

Use this chart to determine the optimal time to book a round-trip flight from San Luis Obispo to Seattle. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from San Luis Obispo to Seattle, you should look to book at least 73 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 $238). Flying from San Luis Obispo 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 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 September 16, 2025.

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 41% on your trip compared to booking a flight at noon.

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 September 14, 2025.

Travelers seeking maximum savings on their San Luis Obispo to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday evenings 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 September 16, 2025.
Read through reviews of airlines operating flights from San Luis Obispo to Seattle, such as Alaska Airlines, Hawaiian Airlines, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Hawaiian Airlines
7.8
Good
2,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

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

Food

7.1

Boarding

8.1

Comfort

7.8

Overall

8.0

Crew

8.5

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 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 is 1 flight from County to Seattle/Tacoma Intl, all of which are around 2h 20m 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 11 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 34m. 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, Alaska Airlines ($161), United Airlines ($176), and Hawaiian 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 44% 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?

    $79 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Alaska Airlines and Hawaiian Airlines, with prices starting from $99 and $119, respectively.

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

    Looking at all options, your cheapest flight can be booked for $120. While the most popular route (San Luis Obispo County - Seattle/Tacoma Intl) can be booked for $157 on average, our data indicates $318 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 $238). Flying from San Luis Obispo 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
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Shoreline

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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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$161Average$296FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$176Average$420FlexibilityNo cancel feeOn-time69%
Hawaiian AirlinesCheapest$177Average$257FlexibilityNo cancel feeOn-time85%

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