Cheap Flights from San Diego (SDM) to Seattle (SEA)

Popular airlines from San Diego, CA (SDM-Brown Field Municipal) to Seattle

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Frequently asked questions

How much does a flight from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA) cost?
Secure a cheap one-way flight or cheap return flight from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
is the cheapest month to fly from SDM to SEA. Avoiding peak travel times is often the key to finding better fares.
Which airlines fly direct from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
You can't fly nonstop to Seattle - Tacoma Intl. Airport (SEA) from San Diego, CA (SDM-Brown Field Municipal). However, you can easily journey to Seattle without any layovers by leaving from San Diego Intl. Airport (SAN).
What is the cheapest airline that flies from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SDM to SEA flight.
How many flights per day from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
Direct flights from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDM to SEA?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid potential delays on the San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Holding off until right before your break to book a flight from SDM to SEA often results in higher prices. While you might find some last-minute offers, they aren't always guaranteed. Be flexible with your travel plans to maximize your chances of scoring a bargain.
Is it cheaper to book a SDM to SEA flight and hotel package?
You'll generally save money by booking a SDM to SEA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal flights and accommodations, consider other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from San Diego, CA (SDM-Brown Field Municipal) to Seattle - Tacoma Intl. Airport (SEA)?
If you booked your SDM to SEA flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. 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.

Travel information

Origin airport
Brown Field Municipal
Destination airport
Seattle - Tacoma Intl.
Distance
1064 mi

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San Diego to Seattle Flights

The cheapest times to fly from San Diego 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 Diego to Seattle are during the month of . You can find some of the cheapest flights from San Diego to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Seattle

Sunday is one of the best days to book for cheap flights from San Diego 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 Diego 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 Diego to Seattle in 2026. You can also book with separate airlines for your outbound and return journeys, from 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 Diego 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 Diego 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.

 

San Diego to Seattle Flights

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