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Cheap Flights from Seattle to San Diego International

Compare Seattle to San Diego International flight deals

Find the cheapest month or even day of the year to fly to San Diego International

Book the best San Diego International fare with no extra fees

Flight deals from Seattle to San Diego International

Looking for a cheap last-minute deal or the best return flight from Seattle to San Diego International Airport? If you want to travel next month, return fares start from Rs45,774. Find the lowest prices on one-way and return tickets right here.
San Diego.Rs16,625 per passenger.Departing Mon, 1 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Mon, 1 Jun, arriving in San Diego International.Price includes taxes and charges.From Rs16,625, select.
San Diego.Rs21,175 per passenger.Departing Wed, 27 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Wed, 27 May, arriving in San Diego International.Price includes taxes and charges.From Rs21,175, select.
San Diego.Rs22,887 per passenger.Departing Wed, 26 Aug.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Wed, 26 Aug, arriving in San Diego International.Price includes taxes and charges.From Rs22,887, select.
San Diego.Rs22,958 per passenger.Departing Wed, 20 May.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Wed, 20 May, arriving in San Diego International.Price includes taxes and charges.From Rs22,958, select.
San Diego.Rs22,958 per passenger.Departing Wed, 1 Jul.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Wed, 1 Jul, arriving in San Diego International.Price includes taxes and charges.From Rs22,958, select.
San Diego.Rs22,958 per passenger.Departing Tue, 2 Jun.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Tue, 2 Jun, arriving in San Diego International.Price includes taxes and charges.From Rs22,958, select.
San Diego.Rs25,299 per passenger.Departing Sat, 12 Sep.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sat, 12 Sep, arriving in San Diego International.Price includes taxes and charges.From Rs25,299, select.
San Diego.Rs25,400 per passenger.Departing Sun, 7 Feb.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sun, 7 Feb, arriving in San Diego International.Price includes taxes and charges.From Rs25,400, select.
San Diego.Rs25,413 per passenger.Departing Sun, 1 Nov.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sun, 1 Nov, arriving in San Diego International.Price includes taxes and charges.From Rs25,413, select.
San Diego.Rs31,219 per passenger.Departing Wed, 30 Sep.One-way flight with Delta.Outbound direct flight with Delta departs from Seattle / Tacoma International on Wed, 30 Sep, arriving in San Diego International.Price includes taxes and charges.From Rs31,219, select.
San Diego.Rs36,796 per passenger.Departing Sun, 6 Dec.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Sun, 6 Dec, arriving in San Diego International.Price includes taxes and charges.From Rs36,796, select.
San Diego.Rs37,520 per passenger.Departing Wed, 14 Oct.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Wed, 14 Oct, arriving in San Diego International.Price includes taxes and charges.From Rs37,520, select.
San Diego.Rs37,546 per passenger.Departing Tue, 9 Mar.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Tue, 9 Mar, arriving in San Diego International.Price includes taxes and charges.From Rs37,546, select.
San Diego.Rs37,927 per passenger.Departing Mon, 11 Jan.One-way flight with United.Outbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 11 Jan, arriving in San Diego International.Price includes taxes and charges.From Rs37,927, select.
San Diego.Rs41,497 per passenger.Departing Wed, 14 Oct.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Wed, 14 Oct, arriving in San Diego International.Price includes taxes and charges.From Rs41,497, select.
San Diego.Rs41,774 per passenger.Departing Mon, 21 Dec.One-way flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Seattle / Tacoma International on Mon, 21 Dec, arriving in San Diego International.Price includes taxes and charges.From Rs41,774, select.

Find the cheapest month to fly from Seattle to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to San Diego International flights are currently cheapest in June.
Apr
from Rs41,956
May
from Rs21,175
Jun
from Rs16,625
Jul
from Rs22,958
Aug
from Rs22,887
Sep
from Rs25,299
Oct
from Rs37,520
Nov
from Rs25,413
Dec
from Rs36,796
Jan
from Rs37,927
Feb
from Rs25,400
Mar
from Rs37,546

Direct flights from Seattle to San Diego International

Seattle to San Diego International: Alternative routes

Compare routes from Seattle to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

San Diego International

4km from central San Diego
ClosestCheapest
from Rs16,625
Search flights

McClellan-Palomar

48km from central San Diego
from Rs25,335
Search flights

Seattle to San Diego: Flight information

The things to know before you go.
Cheapest flight foundRs16,625
Cheapest month to flyJune
Average flight time2 hrs, 54 mins
Most popular airlineAlaska Airlines
Average flights per week367

Finding cheap flights from Seattle to San Diego International: Frequently asked questions

The best price we found for a return flight from Seattle to San Diego International is Rs45,457. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
2 hours and 53 minutes is the average flight time from Seattle to San Diego International.
Alaska Airlines, WestJet and Qatar Airways fly direct from Seattle to San Diego International.
As of April 2026, there are 367 flights per week flying from Seattle to San Diego International.
The cheapest month to fly from Seattle to San Diego International is usually June.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to San Diego International Airport on Tuesday, 9 June 2026.
Yes – the average flight time is 2 hours and 53 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to San Diego International is Alaska Airlines .

Travelling from Seattle to San Diego International Airport (SAN): What you need to know

  • Your adventure begins at one of Seattle's main airports, Seattle-Tacoma International Airport (SEA) or Seattle Paine Field International Airport (PAE). Explore your options for booking a flight from Seattle to San Diego International Airport (SAN) jetting off from either of these bases.

  • Expect to be travelling for 2 hours 50 minutes. That's the average journey time for a direct Seattle to San Diego International Airport flight.

  • Seattle and San Diego (where San Diego International Airport is located) share the UTC-8 timezone. That means you won't have to change your watch once you land.

  • The busiest route is Seattle-Tacoma International Airport (SEA) to San Diego International Airport (SAN). You can choose from 90 direct services every week.

  • Give yourself enough time to make your flight from Seattle to SAN. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • If you're flying during a popular month like July, be at the airport even earlier. You'll want to arrive up to four hours before international flights and two hours ahead of a domestic departure. Expect lines to be longer during peak periods like Thanksgiving and Christmas.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

  • You can find a direct flight from Seattle to San Diego International Airport (SAN) out of Seattle-Tacoma International Airport (SEA).

  • You'll have your choice of carriers that offer direct flights from Seattle to San Diego International Airport departing from SEA. Get on board with any of these:

  • Alaska Airlines is the airline most travellers choose for flights from SEA to SAN.

  • With 76.28% of services landing on schedule, Delta is the highest-rated carrier for punctuality on this route.

  • The journey from central Seattle to SEA takes about 35 minutes on public transport. If you drive, ride-share or grab a taxi, you'll cover the 23 kilometres in 25 minutes or so, depending on traffic.

  • Looking for a comfortable hotel close to Seattle-Tacoma International Airport? If you're catching an early flight from Seattle to San Diego International Airport, these accommodation options will have you sleeping moments from your check-in counter:

  • Seattle-Tacoma International Airport scores top marks for its on-time performance. 80% of flights that take off from SEA reach their destination without delay.

Seattle Paine Field International Airport (PAE)

  • You can book a direct Seattle to San Diego International Airport (SAN) plane ticket with departures from Seattle Paine Field International Airport (PAE). Figure out if flying from PAE works better for your plans.

  • From PAE, direct flights from Seattle to SAN are available with Alaska Airlines.

  • Alaska Airlines is the most popular choice for travellers flying from PAE to SAN.

  • Need a carrier known for punctuality? Go with Alaska Airlines. 89.83% of its flights between Seattle Paine Field International Airport and San Diego International Airport touch down as planned.

  • PAE is around 40 kilometres from central Seattle. It'll take 40 minutes or so to get to the airport driving from the city centre. Public transport takes approximately 1 hour 30 minutes.

  • Flying off with the first light? Think about checking in to one of these hotels near Seattle Paine Field International Airport the day before your Seattle to SAN flight:

  • Flights from Seattle Paine Field International Airport have a strong track record for punctuality, with 80% of them touching down as expected.

About San Diego International Airport (SAN)

Getting from San Diego International Airport (SAN) to central San Diego

  • From San Diego International Airport, central San Diego is around 5 kilometres away. It takes about 15 minutes to get to the city centre by car.

  • Travelling on public transport takes about 25 minutes.

How to find the cheapest flights from Seattle to San Diego International Airport (SAN)

  • The cheapest price we've found for a one-way ticket from Seattle to San Diego International Airport is Rs16,625. For a return flight on this route, the best price is Rs45,457. Depending on when you book and the availability, these fares can change.

  • Booking ahead of time is often the key to finding a cheap flight from Seattle to SAN. Fares tend to rise as seats fill up, so the closer you get to departure, the more it could cost you.

  • If you have some flexibility with your trip dates, use the 'Whole month' search tool. It'll show you the cheapest price across each month when searching for your Seattle to San Diego International Airport ticket.

  • Finding a cheap plane ticket from Seattle to SAN is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll notify you when prices go down.

  • Find an affordable flight from Seattle to San Diego International Airport by using the search filters. Choose your preferred times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Seattle to San Diego International Airport (SAN)

  • July is when most people book flights from Seattle to San Diego International Airport (SAN). Plan your visit to San Diego in December for a more laid-back experience.

  • Lock in a Seattle to SAN plane ticket departing in August if you want to visit the city during its warmest month. Expect temperatures in San Diego to range from 16ºC to 27ºC.

  • Search for cheap tickets from Seattle to San Diego International Airport in February if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between 8ºC and 22ºC.

More about San Diego

Explore more of the United States

  • Los Angeles is just one of the many places in the United States waiting to be discovered once you've seen San Diego. Around 177 kilometres away to the northwest, well-known attractions include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • Around 145 kilometres northwest of San Diego, Long Beach is another favourite stop in the United States. Start your sightseeing at The Queen Mary, Museum of Latin American Art (MOLAA) and Long Beach Lighthouse.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.