Cheap Flights from Seattle (LKE) to San Diego (SAN)

Popular airlines from Seattle, WA (LKE-Lake Union Seaplane Base) to San Diego Intl. Airport (SAN)

Frequently asked questions

How much does a flight from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN) cost?
Snag a cheap one-way flight or cheap return flight from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
Planning your getaway for is a great way to save, as it's the cheapest month for flights between LKE and SAN. You'll often find the lowest fares during off-peak months.
Which airlines fly direct from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
There are no direct routes from Seattle, WA (LKE-Lake Union Seaplane Base) to San Diego Intl. Airport (SAN). However, there are other airports that have nonstop flights. Hop on your plane at Seattle - Tacoma Intl. Airport (SEA) and travel straight to San Diego without a layover.
What is the cheapest airline that flies from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from LKE to SAN. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
There are no daily direct flights available from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from LKE to SAN?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
Opt for a flight from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN) that takes off before 3 PM to reduce the risk of cancellations. Later departures have a 22% higher chance of being canceled, on average.**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 Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN) last-minute?
Last-minute bookings from LKE to SAN are generally more expensive. To lock in the cheapest rates, start looking for flights early. That being said, if you can play around with your travel dates, you may score a cheap ticket right before you leave.
Is it cheaper to book a LKE to SAN flight and hotel package?
Compared with arranging hotels and flights separately, booking a LKE to SAN flight and hotel package with Expedia could lead to significant savings. Better still, having everything in one easy place will take the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then personalize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Lake Union Seaplane Base Airport (LKE) to San Diego Intl. Airport (SAN)?
Typically, you can reschedule or cancel your LKE to SAN flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further information, head to our Customer Service portal.

Travel information

Origin airport
Lake Union Seaplane Base
Destination airport
San Diego Intl.
Distance
1063 mi

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Seattle to San Diego Flights

The cheapest times to fly from Seattle to San Diego

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

 

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

Sunday is one of the best days to book for cheap flights from Seattle to San Diego: 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 Seattle to San Diego

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 Seattle to San Diego 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 Seattle to San Diego 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 Seattle to San Diego 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.

 

Seattle to San Diego Flights

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*Available to One Key members.