£58 Find Cheap Flights from Seattle to San Diego – Compare and Save

The Hilton is a stylish hotel that is less than a 15-minute drive from Balboa Park and a 16-minute drive from San Diego International Airport. The Sheraton San Diego Hotel is a modern option that is a 15-minute drive from the USS Midway Museum and a 14-minute drive from the airport.

At this time, there are no indoor smoking rooms in the terminals of San Diego International Airport. However, there are some designated outdoor smoking zones that are placed outside of the doors of the Arrivals terminal and which are clearly marked by official airport signs.

If you are an art enthusiast, make sure to check out the contemporary collection from SeaTac that can be found in the main terminal of Seattle-Tacoma International Airport. If you would prefer to watch a movie or TV show, head to a Digiboo self-service kiosk to rent some digital content before boarding your flight.

To purchase some gifts or souvenirs, browse through the various shops that are located in Seattle-Tacoma International Airport. Chalo Seattle is a local boutique that offers a variety of regional products, while Affordable Luxuries sells clothing and accessories. There are also several Hudson News locations, in case you need to pick up any last-minute travel essentials.

Among airlines operating Seattle to San Diego flights:

• Alaska Airlines: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection
• American Airlines: offers free seat selection
• JetBlue: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between Seattle and San Diego. The airlines offering direct flights on this route include:

• Alaska Airlines
• Delta
• Southwest

Flights from Seattle to San Diego usually depart from Seattle/Tacoma Intl (SEA) and arrive at San Diego (SAN).

Here are some options for this route, based on selected ticket types and cabin classes:

• Alaska Airlines: a cabin bag and a checked bag in Economy class
• Delta: a cabin bag and a checked bag in Economy class
• American Airlines: a cabin bag and a checked bag in Economy class

Bag allowance can vary by ticket type, cabin class, route, and airline, so travellers should check the fare details before booking.

Only Economy class is available on flights from Seattle to San Diego.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average £145 return via Fresno Airterminal (FAT), compared with £209 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge £26–£74 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Alaska Airlines and Southwest. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

One-stop flights from Seattle to San Diego most commonly connect through:

• Denver Intl (DEN) – 35% of one-stop connections
• San Francisco (SFO) – 16% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) – 11% of one-stop connections
• Sacramento Intl (SMF) – 10% of one-stop connections

Denver Intl (DEN) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 15% on the Seattle to San Diego route. Tuesday is the cheapest departure day at £189 return on average, while Friday is the most expensive at £220, a difference of £31. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Seattle to San Diego route, 17% of flights were delayed in the past 3 months, with delays averaging 1 hour 59 minutes.

Morning is the busiest departure period on Seattle to San Diego flights, with 51% leaving in that window. Evening departures account for 28%, Afternoon flights for 21%, and Night flights for 0%.

Some of the most popular sights in San Diego are San Diego Convention Center, Shelter Island, and SDSU Downtown Gallery. These are among the most viewed places in San Diego on KAYAK.

These are the earliest and latest flight times available from Seattle to San Diego:

• Earliest: departs at 06:00 and lands at 08:55
• Latest: departs at 21:08 and lands at 00:03.

The flight takes about 2h 55m.

Last-minute fares on this route (booked within 2 weeks of departure) run 110% above the route average of £208. Book 9 weeks before departure for the lowest fares.

A direct flight from Seattle to San Diego takes 2h 55m, covering 1,051 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £101 to £680. That means the highest observed fare was about 7x higher than the lowest one.

One-way fares from Seattle to San Diego are currently lower than usual. Average one-way flight prices are about £58, which is 62% below the typical average for this route.

Delta is slightly above the route average for timely arrivals, while Alaska Airlines has a lower on-time arrival rate. On-time arrival rates on Seattle to San Diego flights are:

• Delta: 87% on time
• Alaska Airlines: 82% on time
• Southwest: 56% on time

On average, flights on this route are punctual 83% of the time.

Night flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Los Angeles Los Angeles (LAX) gives the shortest average 1-stop total travel time of 4h 48m, compared to 4h 58m via Oakland (OAK) and 5h 06m via San Jose (SJC).

San Diego Airport (SAN) hosts 5 major car hire companies, with daily rates starting from around £10 for economy cars. Top options include:
• Dollar
• Payless
• Europcar
• Thrifty
• Fox

Return flights from Seattle to San Diego range from £144 to £293, with an average of £208 over the past 12 months. Anything below £144 counts as a good deal.

Three airlines offer in-flight Wi-Fi on Seattle to San Diego flights:

• • Alaska Airlines
• • Delta
• • JetBlue