£59 Cheap Flights from San Diego (SAN) to Seattle (SEA)

You can find cheap one-way flights from £59 and cheap return flights £118 SAN to SEA with Expedia. One-way flights typically cost between £115 and £739, and return flights often range between £223 and £765. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SAN to SEA ticket fares go up or down.

January is typically the cheapest month to fly from San Diego International Airport (SAN) to Seattle - Tacoma International Airport (SEA), with average return fares around £150. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. September and October are also good months to find deals on this route.

Enter SAN to SEA and your travel dates, then apply the 'Nonstop' filter to see only direct flights.

Delta also offers one of the cheapest connecting return flights from San Diego Intl. (SAN) to Seattle - Tacoma Intl. (SEA) starting from around £168. Delta is one of the cheapest airlines offering nonstop return flights from San Diego Intl. (SAN) to Seattle - Tacoma Intl. (SEA), with tickets starting from around £213 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

Finding the absolute 'best' time to fly from San Diego International Airport (SAN) to Seattle-Tacoma International Airport (SEA) depends on what you're looking for! You'll find the cheapest flights in January and September, with average prices around £150 for a return flight. However, if you're looking for the most flight options and a high volume of departures, August and November are typically the most popular months to travel. While there isn't a single month that is both the cheapest and most popular, you can weigh up whether saving money or having more schedule flexibility is more important for your trip.

You'll find approximately 7 nonstop flights per day from San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). For even more choices, look at flights that include layovers, as there are around 102 connecting flights per day. Some common connection points include San Francisco Intl. (SFO), Harry Reid Intl. (LAS), and Sky Harbor Intl. (PHX).

Sort flights by "Departure (earliest)" on Expedia to find the earliest flight from San Diego, CA (SAN) to Seattle, WA (SEA). To compare more early flights, use the "Early Morning" and "Morning" filters in your search.

You'll find the most flights from San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Friday, with around 140 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Alaska Airlines, Southwest Airlines, and United. Flight options are notably more on Fridays compared to other days of the week, offering you greater flexibility.

The most popular departure times for flights from San Diego Intl. (SAN) to Seattle - Tacoma Intl. (SEA) are in the early morning, from 6am to 9am. Many major carriers, including Alaska Airlines, Delta and Southwest Airlines, offer flights during this window. Many travellers prefer these times as it allows for an early start to their day in Seattle.

A nonstop flight from SAN to SEA typically takes around 3 hours 20 minutes, covering approximately 1,691 kilometers. Connecting flights on this route usually add 5 hours 10 minutes to your travel time. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.

You can fly business class or first class between SAN and SEA. You can fly business class with Frontier Airlines and Delta.

First class cabins are available on American Airlines, Delta, Hawaiian Airlines, Alaska Airlines, and United.

It's easy to earn miles on a San Diego, CA (SAN) to Seattle, WA (SEA) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

Typically, booking a last minute flight from San Diego, CA (SAN) to Seattle, WA (SEA) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Diego, CA (SAN) to Seattle, WA (SEA) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Diego, CA (SAN-San Diego Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.