Question 1

How popular is this Seattle to San Diego flight route?

Accepted Answer

Flights from Seattle/Tacoma Intl to San Diego have been viewed 70 times in the past calendar month.

Question 2

What are the cheapest airlines flying from Seattle to San Diego round-trip?

Accepted Answer

Alaska Airlines, at C$ 231, was found to be the cheapest airline from Seattle to San Diego.Alternate airlines to your destination round-trip include Delta and United Airlines. Alaska Airlines is priced at 35% lower than the current average price of a flight leaving 3 months from now.

Question 3

What are the cheapest airlines to fly from Seattle to San Diego one-way?

Accepted Answer

One-way options have recently been found by users for as low as C$ 123 on Hawaiian Airlines. Other airlines that offer cheap prices include Alaska Airlines from C$ 148 and United Airlines from C$ 159 one-way.

Question 4

How far ahead should I book a flight from Seattle to San Diego?

Accepted Answer

Booking 54 days in advance of your planned departure date is, on average, the best time to get cheap flights from Seattle to San Diego. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Question 5

What is the cheapest month to book a flight from Seattle to San Diego?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight from Seattle to San Diego (average of C$ 300). Flying from Seattle to San Diego in July is currently the most expensive (average of C$ 409). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Question 6

What is the cheapest day to fly from Seattle to San Diego?

Accepted Answer

Travelers seeking maximum savings on their Seattle to San Diego flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Question 7

Weekly flight availability from Seattle to San Diego

Accepted Answer

The most flights from SEA to SAN are scheduled on a Monday (58 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Question 8

E

Accepted Answer

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Question 9

E

Accepted Answer

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Question 10

What are the cheapest flights from Seattle to San Diego?

Accepted Answer

The cheapest flight price from Seattle to San Diego is C$ 136. On average you can expect to pay C$ 273. The most popular route, (Seattle/Tacoma Intl - San Diego), can usually be booked for C$ 343.

Question 11

What are the most reliable airlines from Seattle to San Diego?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Seattle to San Diego consider choosing Sun Country Air (100%), China Airlines (94%) or LATAM Airlines (94%) as they are the most reliable in getting you off to your destination on time.

Question 12

What are the most popular airlines that fly from Seattle to San Diego?

Accepted Answer

Alaska Airlines, Delta and Frontier are the most popular airlines when flying from Seattle to San Diego.

Question 13

What is the cheapest day to fly round-trip from Seattle to San Diego?

Accepted Answer

Travellers have found that booking a Monday departure is the best way to save up to 56% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

Question 14

How far in advance should I book a flight from Seattle to San Diego?

Accepted Answer

Find a great deal and save up to 191% by booking at least 55 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to San Diego within the next two weeks, with the cheapest ticket starting at C$ 626.

Question 15

What is the cheapest month to fly from Seattle to San Diego?

Accepted Answer

September can be a great time to fly to San Diego from Seattle with a flight ticket averaging about C$ 360. Cheapflights users have found deals in the month of September for as cheap as C$ 161. The most expensive prices can be found in the month of December.

Question 16

What is the cheapest time of day to fly from SEA to SAN?

Accepted Answer

It’s typically best to fly out from Seattle to San Diego in the afternoon. Doing so could potentially save you 28% on the flight price compared to flying at noon, which is usually more expensive.

Question 17

What airports do I use to fly from Seattle to San Diego?

Accepted Answer

To fly from Seattle to San Diego, you need to book a flight from Seattle/Tacoma Intl (SEA) to San Diego (SAN). Nonstop flights to San Diego from Seattle/Tacoma Intl take 2h 52m on average. When it comes time to book airfare, you have a few options: there are 38 outbound flights from Seattle/Tacoma Intl to San Diego offered by 4 different airlines.

Question 18

Can I find deals for flights from Seattle to San Diego that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Seattle to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

Question 19

How can I find direct flights from Seattle to San Diego?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to San Diego.

Question 20

Can I find deals for business class flights from Seattle to San Diego?

Accepted Answer

Yes. Cheapflights offers flight deals from Seattle to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 21

How does Cheapflights help users find flights from Seattle to San Diego?

Accepted Answer

Deals for Seattle to San Diego flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Question 22

Why should you use Cheapflights to find cheap flight tickets from Seattle to San Diego?

Accepted Answer

Cheapflights simply makes it quick and affordable to book flights from Seattle to San Diego by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Question 23

Can Cheapflights find flights from Seattle to San Diego with no change fees?

Accepted Answer

Certainly. Search results for flights to San Diego from Seattle shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Question 24

Can Cheapflights notify me if prices for flights from Seattle to San Diego become cheaper?

Accepted Answer

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Diego from Seattle today and book when prices fit your budget.

Round-trip from	C$ 231
One-way from	C$ 123
Popular in	December
Cheapest in	September
Average price	C$ 439
Good round-trip deal	C$ 215 or less

Airline	Cheapest	Average	Flexibility	On-time
Delta	CheapestC$ 134	AverageC$ 301	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Frontier	CheapestC$ 138	AverageC$ 296	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Spirit Airlines	CheapestC$ 153	AverageC$ 202	FlexibilityNo cancel fee	On-time65%	Search Spirit Airlines flights
Alaska Airlines	CheapestC$ 176	AverageC$ 332	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

Cheap flights from Seattle to San Diego from C$ 123

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Seattle/Tacoma Intl to San Diego are usually found in September or January, booked 54 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Seattle to San Diego

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Find flight deals from Seattle to San Diego

Cheapest flights from Seattle to San DiegoExplore the most affordable flight options available from Seattle to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Explore the most affordable flight options available from Seattle to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to San Diego that are best for you.

Best time to book a flight from Seattle to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to San Diego

How far ahead should I book a flight from Seattle to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to San Diego. Price data was last updated on 25 April 2025.

What is the cheapest month to book a flight from Seattle to San Diego?

What is the cheapest time of day to fly from SEA to SAN?

Find hourly flight availability from Seattle to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2025.

Weekly flight availability from Seattle to San Diego

Explore weekly flight availability from Seattle to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 29 April 2025.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

Reviews of airlines servicing San Diego

Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Seattle to San Diego. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airports do I use to fly from Seattle to San Diego?

How popular is this Seattle to San Diego flight route?

What are the cheapest airlines flying from Seattle to San Diego round-trip?

What are the cheapest airlines to fly from Seattle to San Diego one-way?

What are the most reliable airlines from Seattle to San Diego?

What are the cheapest flights from Seattle to San Diego?

Can I find deals for flights from Seattle to San Diego that include hotel bookings?

How can I find direct flights from Seattle to San Diego?

Can I find deals for business class flights from Seattle to San Diego?

What is the cheapest month to book a flight from Seattle to San Diego?

Travelling to a place near Seattle?

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Alternative routes for Seattle to San Diego

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Top 4 airlines flying from Seattle to San Diego

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How does Cheapflights help users find flights from Seattle to San Diego?

Why should you use Cheapflights to find cheap flight tickets from Seattle to San Diego?

Can Cheapflights find flights from Seattle to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from Seattle to San Diego become cheaper?

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Cheapest flights from Seattle to San Diego
Explore the most affordable flight options available from Seattle to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.