Cheap flights from Seattle to San Diego

Flights overview

Useful information for finding cheap flights from Seattle to San Diego and booking your next trip
Cheapest round-trip flights $198
United 1 stop 9 hr Sat, Jun 6 — Mon, Jun 8
The cheapest round-trip flight from Seattle to San Diego is currently $198
Cheapest one-way flight $92
United 1 stop 7 hr Wed, May 27
The cheapest one-way flight from Seattle to San Diego is currently $92
Cheapest nonstop flights $217
Alaska Nonstop 3 hr Thu, May 28 — Mon, Jun 1
The cheapest nonstop round-trip flight from Seattle to San Diego is currently $217
Last-minute weekend getaway $312
Frontier 1 stop 14 hr Sat, Apr 25 — Sun, Apr 26
The cheapest last-minute weekend getaway from Seattle to San Diego is currently $312
Cheapest business class flights $448
Frontier 1 stop 13 hr Fri, Jun 5 — Mon, Jun 8
The cheapest business class round-trip flight from Seattle to San Diego is currently $448
Fastest flight 2 hr 43 min The fastest nonstop flight from Seattle to San Diego takes 2 hr 43 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 March.
January
Cheapest
Typical prices: $115–370
March
Most expensive
Typical prices: $170–395

Popular airlines from Seattle to San Diego

  • Alaska
    Nonstop
    from $217
    Typical price: $175–465
    55 weekly nonstop flights
    SEA - SAN Every day
    461 weekly connecting flights
    SEA - SAN Every day
  • Delta
    Nonstop
    from $217
    Typical price: $175–540
    34 weekly nonstop flights
    SEA - SAN Every day
    112 weekly connecting flights
    SEA - SAN Every day
  • Southwest
    Nonstop
    from $237
    Typical price: $180–475
    7 weekly nonstop flights
    SEA - SAN Every day
    319 weekly connecting flights
    SEA - SAN Every day
  • United
    from $203
    Typical price: $200–520
    160 weekly connecting flights
    SEA - SAN Every day
  • American
    from $352
    Typical price: $290–610
    62 weekly connecting flights
    SEA - SAN Every day
  • Frontier
    from $200
    Typical price: $175–390
    22 weekly connecting flights
    SEA - SAN Every day

Popular airports near Seattle

  • Seattle-Tacoma International Airport (SEA)
    Seattle United States 18 min 11 mi
  • Portland International Airport (PDX)
    Portland United States 2 hr 44 min 140 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

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 3 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 $370.
The cheapest round-trip flight from Seattle to San Diego recently found on Google Flights was with United from $198. The cheapest one-way flight was with United from $92.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from Seattle to San Diego is $217, flying from May 28 to Jun 1.
  • The cheapest Delta flight from Seattle to San Diego is $217, flying from May 28 to Jun 1.
  • The cheapest Southwest flight from Seattle to San Diego is $237, flying from Jun 4 to Jun 7.
  • The cheapest United flight from Seattle to San Diego is $203, flying from Jun 4 to Jun 8.
  • The cheapest American flight from Seattle to San Diego is $352, flying from May 9 to May 10.
  • The cheapest Frontier flight from Seattle to San Diego is $200, flying from Jun 4 to Jun 8.
The cheapest round-trip flight from Seattle to San Diego starts at $198 from Sat, Jun 6 to Mon, Jun 8. The cheapest one-way flight starts at $92 and departs on Wed, May 27.
2 hr 43 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 55 nonstop flights and 461 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 34 nonstop flights and 112 connecting flights per week. Delta flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
  • Southwest offers 7 nonstop flights and 319 connecting flights per week. Southwest flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
  • United offers 160 connecting flights per week. United flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
  • American offers 62 connecting flights per week. American flies from Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN) .
  • Frontier offers 22 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 United from $198. The cheapest one-way flight was with United from $92.

Some of the cheapest round-trip deals we found with different airlines:
  • The cheapest Alaska flight from Seattle to San Diego is $217, flying from May 28 to Jun 1.
  • The cheapest Delta flight from Seattle to San Diego is $217, flying from May 28 to Jun 1.
  • The cheapest Southwest flight from Seattle to San Diego is $237, flying from Jun 4 to Jun 7.
  • The cheapest United flight from Seattle to San Diego is $203, flying from Jun 4 to Jun 8.
  • The cheapest American flight from Seattle to San Diego is $352, flying from May 9 to May 10.
  • The cheapest Frontier flight from Seattle to San Diego is $200, flying from Jun 4 to Jun 8.
Alaska, Delta and Southwest fly direct from Seattle to San Diego.
  • There are 55 Alaska direct flights from Seattle to San Diego per week. Flights are available every day.
  • There are 34 Delta direct flights from Seattle to San Diego per week. Flights are available every day.
  • There are 7 Southwest 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 $312 is offered by Frontier from Sat, Apr 25 to Sun, Apr 26.
Alaska, Delta and Southwest fly direct from Seattle to San Diego.
  • There are 55 Alaska direct flights from Seattle to San Diego per week. Flights are available every day.
  • There are 34 Delta direct flights from Seattle to San Diego per week. Flights are available every day.
  • There are 7 Southwest 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 $217 from Thu, May 28 to Mon, Jun 1 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 $448 from Fri, Jun 5 to Mon, Jun 8 with Frontier.
The cheapest economy class round-trip flights between Seattle and San Diego start at $198 from Sat, Jun 6 to Mon, Jun 8.
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 $312 from Sat, Apr 25 to Sun, Apr 26 with Frontier.
The cheapest last-minute deal between Seattle and San Diego at price $312 is offered by Frontier from Sat, Apr 25 to Sun, Apr 26.
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.

Search more flights

Popular trips from Seattle

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    Nonstop 2 hr 57 min Frontier
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    1 stop 5 hr 18 min United
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