$99 Cheap Delta flights Portland (PDX) to San Diego (SAN)

View $99 flight on Sun, Sep 7, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$99 Cheap Delta flights Portland (PDX) to San Diego (SAN)

Prices were available within the past 7 days and start at $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Sep 25 - Sun, Sep 28
PDX
Portland
SAN
San Diego
$197 Roundtrip, just found
$197
Roundtrip
just found
Select Delta flight, departing Thu, Sep 25 from Portland to San Diego, returning Sun, Sep 28, priced at $197 just found
Flights from Portland (PDX) to San Diego (SAN)
Origin airport
Portland Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
933 mi
Average flight time
3 hours 14 mins

Frequently asked questions

How much is a Delta Air Lines flight from Portland Intl. Airport (PDX) to San Diego Intl. Airport (SAN)?
Make use of the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines return flights from $197 from PDX to SAN. Affordable one-way fares from $99 are available as well.**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.
What is the cheapest month to fly from PDX to SAN with Delta Air Lines?
Search for round-trip or one-way flights to San Diego in January or November. You could find an affordable fare with Delta Air Lines during these quieter months.
What is the cheapest time to book flights from Portland Intl. Airport (PDX) to San Diego Intl. Airport (SAN) with Delta Air Lines?
Look for affordable Delta Air Lines flights from Portland Intl. Airport (PDX) to San Diego Intl. Airport (SAN) one to three months before your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare class and itinerary, the best day of the week to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.
Does Delta Air Lines fly nonstop from Portland Intl. Airport (PDX) to San Diego Intl. Airport (SAN)?
Select our "Nonstop" filter when looking for direct Delta Air Lines flights from PDX to SAN. It's also a good way to compare other airlines offering the same nonstop route.
What is the earliest Delta Air Lines flight from PDX to SAN?
Browse Delta Air Lines's earliest flights from PDX to SAN by checking the "Morning" and "Early Morning" filters. Not only will you get to where you're going sooner, early departures also have a 20% less chance of being canceled.**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.
What airports does Delta Air Lines fly into in San Diego?
San Diego Intl. Airport (SAN) is the primary San Diego gateway for Delta Air Lines flights from Portland Intl. Airport (PDX).
Why fly with Delta Air Lines from PDX to SAN?
Delta Air Lines makes flying from PDX to SAN enjoyable with a rewarding loyalty program and an excellent in-flight experience. You also have the chance to earn points with Delta SkyMiles. Be sure to join our free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Portland Intl. Airport (PDX) to San Diego Intl. Airport (SAN)?
Changes are often free within 24 hours of booking, but your airline may charge a fee after that. For more information about modifying your reservation, head to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to make changes without being charged, check the "Changes included" or "No cancel fee" filter when planning your next adventure.

Explore a world of travel with Expedia

*Available to One Key members.