$109 Cheap Delta flights Seattle (SEA) to San Diego (SAN)

You’ll find affordable round-trip Delta Air Lines flights from $247 from SEA to SAN by filtering your results from “Price (lowest to highest)” on Expedia. Or look for options from $109 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the cheapest months to get away to San Diego with Delta Air Lines. You could also find great prices on one-way and round-trip fares in November.

To find cheap Delta Air Lines fares from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect how much you pay. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Delta Air Lines has direct flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN), with 31 departures each week. Simply use the “Nonstop” and “Airline” filters while searching on Expedia to see all direct Delta Air Lines flights to SAN.

On average, it takes 2h 50m to travel nonstop from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN) with Delta Air Lines.

Sunday has the most Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN). With 5 daily departures, this is the best day to book something that will work for your schedule.

The earliest flight from SEA to SAN with Delta Air Lines departs at 7:30AM UTC-8. You’ll touch down at 10:24AM UTC-8. The last Delta Air Lines flight of the day takes off at 7:30PM UTC-8 and arrives at 10:19PM UTC-8. With approximately 20% fewer cancellations for departures before noon, setting off early is typically the smartest option.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to San Diego arrive at San Diego Intl. Airport (SAN). This is the main gateway to this destination.

Delta Air Lines makes flying from SEA to SAN enjoyable with a rewarding loyalty program and an excellent in-flight experience. You may even earn points with Delta SkyMiles. Be sure to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future travel.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board a Boeing 737-800 or an Airbus A220-300 when flying Delta Air Lines from Seattle - Tacoma Intl. Airport (SEA) to San Diego Intl. Airport (SAN). However, keep in mind that a different aircraft may be assigned depending on operational factors.

Depending on your ticket type, a fee generally applies if you modify or cancel your booking more than 24 hours after it’s confirmed. To secure flexible plane tickets, select our “Changes included” and “No cancel fee” boxes when you search for flights. To learn more about canceling or changing your reservation, go to “Trips,” select your flight and click on “Manage Booking.”