Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Amazing Frontier Airlines SEA to SAN Flight Deals

The cheapest flights to San Diego Intl. found within the past 7 days were $78 round trip and $45 one way. Prices and availability subject to change. Additional terms may apply.

SAN From SEA Economy Coach Packages on Similar Airlines

FAQs about Frontier Airlines Flights from SEA to SAN

What terminal is Frontier Airlines at Sea-Tac Airport?

Check your ticket to find out which Seattle, WA (SEA-Seattle - Tacoma Intl.) terminal you'll be taking off from on your way to San Diego, CA (SAN-San Diego Intl.) with Frontier Airlines. If you can't locate the details on there, consult your airline.

Are there Frontier Airlines non-stop flights from SEA to SAN?

If you're traveling with Frontier Airlines from Seattle, WA (SEA-Seattle - Tacoma Intl.) to San Diego, CA (SAN-San Diego Intl.), you'll need to make a stopover. While waiting for your next flight, use the time to grab a refreshment or check out the airport shops.

How long is a Frontier Airlines flight from SEA to SAN?

Your Frontier Airlines flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to San Diego, CA (SAN-San Diego Intl.) will take approximately 5 hours and 17 minutes. There are many things you can do to keep yourself occupied. Asking the passenger next to you about what travel experiences they've had is one of them. If you'd rather a different sort of in-flight entertainment, you could always listen to a podcast.

How many direct and indirect flights does Frontier Airlines fly from SEA to SAN?

You'll have loads of choice if you're thinking about flying with Frontier Airlines between SEA and SAN. It's currently operating around 2 flights every day.

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to San Diego, CA (SAN-San Diego Intl.), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on from January to December 2019. Savings are subject to change based on departure location, date and destination.

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.