$47 Cheap Spirit Airlines flights San Diego (SAN) to Seattle (SEA)

Scoring cheap one-way Spirit Airlines flights from SAN to SEA from $47 on Expedia is easy — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $94 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines flights to Seattle are often more affordable in the off-peak months of January and February. Whether you’re in search of a round-trip or one-way ticket, you could land a better deal then.

To find cheap Spirit Airlines fares from San Diego Intl. Airport (SAN) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the cost. Sunday is usually the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use our “Nonstop” filter when looking for direct Spirit Airlines flights from SAN to SEA. You’ll also be able to compare other carriers servicing the same nonstop trip.

To find the earliest departure from SAN to SEA with Spirit Airlines, filter your search by “Early Morning” and “Morning.” Choosing an early flight usually means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Spirit Airlines flights from San Diego Intl. Airport (SAN) to Seattle arrive at Seattle - Tacoma Intl. Airport (SEA). This is the main gateway to this destination.

Offering a rewarding loyalty program, Spirit Airlines is a popular choice for many travelers departing from SAN to SEA. Plus, if you’re a Free Spirit and One Key™ member booking through Expedia, you can earn OneKeyCash™* on eligible flights along with your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are usually free within 24 hours of booking, but your airline may add a charge after that. For further information about modifying your reservation, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your itinerary without extra charges, tick the “Changes included” or “No cancel fee” filter when organizing your next adventure.