$154 Cheap Flights from San Luis Obispo (SBP) to Seattle (SEA)

San Luis Obispo (SBP) to Seattle (SEA) at a glance

Explore a range of airlines offering flights from San Luis Obispo County Regional Airport (SBP) to Seattle-Tacoma International Airport (SEA) on this domestic short-haul route. With options from various carriers, you can compare itineraries to find one that aligns with your budget and schedule while planning your visit to Seattle’s iconic attractions and vibrant neighborhoods. Discover essential flight details as you prepare for your journey to the Emerald City.

• Fastest flight duration: around 2h 30m non-stop
• Route distance: roughly 800 miles (1,290 km)
• Flights per week: around 12 departures on average
• Typical fares (one-way): economy tickets often range from $80–$400, depending on seasonality and how far ahead you book

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

According to recent traveler bookings, the top airlines flying from San Luis Obispo to Seattle are favored for both non-stop and one-stop flights. Common layover points include San Francisco International Airport (SFO, approximately 1 hour 30 minutes), San Diego International Airport (SAN, around 1 hour 30 minutes), and Los Angeles International Airport (LAX, about 1 hour 15 minutes). This variety allows you to customize your travel plans by balancing ticket prices, total travel times, and cabin classes to discover the best itinerary for your journey.

• Alaska Airlines: This full-service airline provides both non-stop and one-stop flights, with one-way ticket prices typically between $80 and $385. It operates around 62% of departures on this route, boasting a standard non-stop flight duration of 2 hours and 30 minutes.
• United: A full-service airline, United offers one-stop flights with fares generally ranging from $85 to $490. It represents about 33% of the departures for this route, featuring an in-flight time of 3 hours and 30 minutes, totaling approximately 5 hours and 15 minutes when including layovers.
• Hawaiian Airlines: Known for its non-stop service, Hawaiian Airlines offers one-way tickets usually priced between $100 and $290. It accounts for roughly 3% of departures on this route, with a total journey time of 2 hours and 30 minutes.
• American Airlines: This full-service carrier provides one-stop service, with one-way fares typically ranging from $120 to $410. It makes up about 2% of departures on this route, with an in-flight duration of 3 hours and 30 minutes, leading to a total journey time of around 5 hours and 15 minutes, including layovers.

Travelers flying from San Luis Obispo to Seattle can opt to elevate their experience with upgrades available on Alaska Airlines and United, both offering first-class and business-class service.

Best time to fly from San Luis Obispo (SBP) to Seattle (SEA)

The most popular months for travelers flying from San Luis Obispo to Seattle are March, April, and August, when peak temperatures in Seattle reach up to 67.5°F in August. If you prefer quieter travel, consider May, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 55.8°F. For better deals, August usually offers the lowest average one-way fare around $177. Flight availability peaks in November, with approximately 16 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 9 flights per week.

• Cheapest time to fly: August usually offers good deals with average one-way fare around $177, roughly 14% cheaper than the yearly average.
• More budget-friendly months to fly: January, May, and September typically offer average one-way fares of around $185.
• Most flight options: November has the highest number of flights from San Luis Obispo to Seattle, with approximately 16 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from San Luis Obispo (SBP) to Seattle (SEA)

• Santa Barbara to Seattle (SBA-SEA): Santa Barbara Municipal Airport (SBA) is located approximately 72 miles from San Luis Obispo County Regional Airport (SBP). One-way economy ticket prices on this route generally fall between $80 and $350, influenced by the time of year and how far in advance you book. Travelers can choose from both direct and connecting flight options. Major airlines serving this route include Alaska Airlines and United. Additionally, there are business and first-class service choices available.

How to find the best prices for flights from San Luis Obispo (SBP) to Seattle (SEA)

Getting some of the best deals on flights from San Luis Obispo to Seattle is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are typically found when booking 2-8 weeks in advance, which coincides with when most travelers make their reservations. Evening departures, between 6 PM and midnight, tend to offer lower prices and are the most popular flight times. Additionally, flying on Saturday usually results in cheaper rates, although Thursday remains the most favored travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Seattle - Tacoma International Airport from San Luis Obispo County Regional Airport

Seattle welcomes travelers from San Luis Obispo with a range of transport options based on price, convenience, and proximity. Seattle city center is approximately a 20-minute drive (covering about 14 miles) from Seattle - Tacoma International Airport, depending on traffic. Here's how to reach Seattle efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Seattle, with private rides that can be arranged in advance.
• Car rental: Renting a car from Seattle - Tacoma International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Seattle - Tacoma International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Seattle - Tacoma International Airport, SeaTac/Airport Station, a metro station, is located about 0.3 miles away on foot, while Tukwila Station, a train station, is situated about 4.3 miles from the airport by car.

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 December. 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 2026. You can also book with separate airlines for your outbound and return journeys, from $154 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.