Flight Deals from Gillespie Field to Seattle
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Yearly Good Deal Price
Flights from San Diego to Seattle are most expensive from late February to mid-April and least expensive in mid-August to early September.
When flying from San Diego to Seattle, expect significant price variations throughout the year. The peak season typically begins in late February and lasts until mid-April, with prices peaking around late March at the highest range. The lowest prices are generally found in mid-August, marking the beginning of a low price period that can extend into early September. Following that, prices gradually increase again through the fall. Overall, the difference between high and low seasons can be substantial, with low prices seeing costs under $280, while peak times can reach over $380.
Best Time to Book
Book your flight from San Diego to Seattle 26 days before departure for the best prices.
When planning your trip from San Diego to Seattle, the best time to book your flight is around 26 days before departure, when prices are at their lowest, typically around $170. Avoid booking earlier, as prices may exceed $280, nearly 69% higher. While prices can fluctuate close to your departure date, they generally rise steadily, particularly after 26 days out, so if you're less than 10 days from your trip, make a reservation immediately to avoid higher costs that could reach about $275. For optimal peace of mind and seat selection, consider booking between 90 to 74 days before your flight at nearly comparable prices.
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