Find Cheap Flights from Seattle to San Diego (SEA - SAN)

Flights overview

Useful information for finding cheap flights from Seattle to San Diego and booking your next trip

Cheapest round-trip flights	$138	Frontier 1 stop 20 hr Sat, Feb 28 — Mon, Mar 2	The cheapest round-trip flight from Seattle to San Diego is currently $138
Cheapest one-way flight	$64	Frontier 1 stop 7 hr Sat, Feb 28	The cheapest one-way flight from Seattle to San Diego is currently $64
Cheapest nonstop flights	$177	Alaska Nonstop 3 hr Thu, Apr 23 — Sun, Apr 26	The cheapest nonstop round-trip flight from Seattle to San Diego is currently $177
Last-minute weekend getaway	$296	Frontier 1 stop 13 hr Thu, Jan 29 — Sun, Feb 1	The cheapest last-minute weekend getaway from Seattle to San Diego is currently $296
Cheapest business class flights	$457	Alaska Nonstop 3 hr Thu, Apr 23 — Sun, Apr 26	The cheapest business class round-trip flight from Seattle to San Diego is currently $457

Fastest flight	2 hr 35 min	The fastest nonstop flight from Seattle to San Diego takes 2 hr 35 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Seattle to San Diego is typically January. The most expensive month to fly is typically July.

January Cheapest	Typical prices: $115–365
July Most expensive	Typical prices: $170–275

Popular airlines from Seattle to San Diego

Alaska

Nonstop

from $157

Typical price: $185–455

45 weekly nonstop flights

SEA - SAN Every day

371 weekly connecting flights

SEA - SAN Every day
Delta

Nonstop

from $177

Typical price: $175–520

32 weekly nonstop flights

SEA - SAN Every day

100 weekly connecting flights

SEA - SAN Every day
Southwest

from $181

Typical price: $190–465

220 weekly connecting flights

SEA - SAN Every day
United

from $251

Typical price: $205–495

130 weekly connecting flights

SEA - SAN Every day
American

from $247

Typical price: $280–570

34 weekly connecting flights

SEA - SAN Every day
Frontier

from $138

Typical price: $170–365

17 weekly connecting flights

SEA - SAN Every Mon, Thu, Fri, Sat, Sun

Popular airports near Seattle

Seattle-Tacoma International Airport (SEA)

Seattle United States 18 min 11 mi
Paine Field (PAE)

Everett United States 31 min 21 mi
King County International Airport - Boeing Field (BFI)

Seattle United States 11 min 5 mi
Portland International Airport (PDX)

Portland United States 2 hr 44 min 140 mi

Popular airports near San Diego

San Diego International Airport (SAN)

San Diego United States 10 min 2 mi
Tijuana International Airport (TIJ)

Tijuana Mexico 37 min 16 mi
Los Angeles International Airport (LAX)

Los Angeles United States 2 hr 2 min 111 mi
John Wayne Airport (SNA)

Santa Ana United States 1 hr 21 min 78 mi

Frequently asked questions about flying from Seattle to San Diego

The cheapest flights from Seattle to San Diego are usually in January. Typical ticket prices in January range from $115 to $365.

The cheapest round-trip flight from Seattle to San Diego recently found on Google Flights was with Frontier from $138. The cheapest one-way flight was with Frontier from $64.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Seattle to San Diego is $157, flying from Apr 25 to Apr 26.
The cheapest Delta flight from Seattle to San Diego is $177, flying from Apr 23 to Apr 26.
The cheapest Southwest flight from Seattle to San Diego is $181, flying from Mar 7 to Mar 9.
The cheapest United flight from Seattle to San Diego is $251, flying from Apr 25 to Apr 27.
The cheapest American flight from Seattle to San Diego is $247, flying from Apr 23 to Apr 27.
The cheapest Frontier flight from Seattle to San Diego is $138, flying from Feb 28 to Mar 2.

The cheapest round-trip flight from Seattle to San Diego starts at $138 from Sat, Feb 28 to Mon, Mar 2. The cheapest one-way flight starts at $64 and departs on Sat, Feb 28.

2 hr 35 min is the shortest flight time from Seattle to San Diego.

Jun–Aug is when most people visit San Diego, where the weather's temperate year-round. Beaches are less crowded Dec–Feb, which bring cooler temperatures but brighter sun. Whale-watching season is from mid-Dec–mid-Mar. Major annual events include Comic-Con International (Jul), a massive comic book convention with workshops and film screenings. Fleet Week (autumn) is a large military appreciation event featuring Navy ship tours, an air show and more.

It's easy to use Google Flights to find the cheapest days to fly from Seattle to San Diego.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Seattle to San Diego really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Seattle to San Diego.

In terms of nonstop flights, Alaska is the most popular. Alaska offers 45 nonstop flights and 371 connecting flights per week. Alaska flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .

Other popular airlines flying from Seattle to San Diego are:

Delta offers 32 nonstop flights and 100 connecting flights per week. Delta flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
Southwest offers 220 connecting flights per week. Southwest flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
United offers 130 connecting flights per week. United flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
American offers 34 connecting flights per week. American flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
Frontier offers 17 connecting flights per week. Frontier flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .

The number of connecting flights refers to distinct flights with at least one stop between Seattle and San Diego.

The cheapest round-trip flight from Seattle to San Diego recently found on Google Flights was with Frontier from $138. The cheapest one-way flight was with Frontier from $64.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Alaska flight from Seattle to San Diego is $157, flying from Apr 25 to Apr 26.
The cheapest Delta flight from Seattle to San Diego is $177, flying from Apr 23 to Apr 26.
The cheapest Southwest flight from Seattle to San Diego is $181, flying from Mar 7 to Mar 9.
The cheapest United flight from Seattle to San Diego is $251, flying from Apr 25 to Apr 27.
The cheapest American flight from Seattle to San Diego is $247, flying from Apr 23 to Apr 27.
The cheapest Frontier flight from Seattle to San Diego is $138, flying from Feb 28 to Mar 2.

Alaska and Delta fly direct from Seattle to San Diego.

There are 45 Alaska direct flights from Seattle to San Diego per week. Flights are available every day.
There are 32 Delta direct flights from Seattle to San Diego per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Seattle and San Diego at price $296 is offered by Frontier from Thu, Jan 29 to Sun, Feb 1.

Alaska and Delta fly direct from Seattle to San Diego.

There are 45 Alaska direct flights from Seattle to San Diego per week. Flights are available every day.
There are 32 Delta direct flights from Seattle to San Diego per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Seattle to San Diego on a daily basis.

The cheapest direct (nonstop) round-trip flights between Seattle and San Diego start at $177 from Thu, Apr 23 to Sun, Apr 26 with Alaska.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Seattle to San Diego, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Seattle and San Diego start at $457 from Thu, Apr 23 to Sun, Apr 26 with Alaska.

The cheapest economy class round-trip flights between Seattle and San Diego start at $138 from Sat, Feb 28 to Mon, Mar 2.

To book business class trips from Seattle to San Diego, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Seattle and San Diego starts at $296 from Thu, Jan 29 to Sun, Feb 1 with Frontier.

The cheapest last-minute deal between Seattle and San Diego at price $296 is offered by Frontier from Thu, Jan 29 to Sun, Feb 1.

To find last-minute flight deals from Seattle to San Diego, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.