Affordable Flights from SAN to SEA: Your Pacific Coast Guide

When flying from San Diego to Seattle, it is highly recommended to book your tickets at least three to four weeks in advance to secure the most competitive rates, especially during the peak summer months when tourism in Washington peaks. Since both airports serve as major hubs for Alaska Airlines, consider joining their frequent flyer program to earn miles on this short two-and-a-half-hour hop. To maximize your scenic views, try to snag a window seat on the right side of the aircraft when flying north; on clear days, you may get breathtaking aerial views of Mount Rainier, Mount St. Helens, and the sprawling Cascade Range as you begin your descent into Sea-Tac. Additionally, remember that while San Diego may be sunny, Seattle's weather is notoriously fickle, so dressing in layers and keeping a light waterproof jacket in your carry-on is a smart move for your arrival.

Travelers will generally find the lowest airfares during the late autumn and winter months, specifically from November through February, excluding the holiday peaks around Thanksgiving and Christmas. This period coincides with Seattle's rainy season, leading to lower demand for leisure travel. Conversely, prices tend to spike significantly during the glorious summer window from late June through August, when the Pacific Northwest enjoys its driest and sunniest weather, attracting hikers, cruise passengers, and festival-goers from across the globe.