$139 Cheap United flights Memphis (MEM) to San Diego (SAN)

View $139 flight on Wed, Sep 24, 2025Opens in a new window

$139 Cheap United flights Memphis (MEM) to San Diego (SAN)

Prices were available within the past 7 days and start at $139 for one-way flights and $282 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 25 - Wed, Oct 29
MEM
Memphis
SAN
San Diego
$282 Roundtrip, found 2 hours ago
$282
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Oct 25 from Memphis to San Diego, returning Wed, Oct 29, priced at $282 found 2 hours ago
Flights from Memphis (MEM) to San Diego (SAN)
Origin airport
Memphis Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
1564 mi
Average flight time
5 hours 25 mins

Frequently asked questions

How much is a United Airlines flight from Memphis Intl. Airport (MEM) to San Diego Intl. Airport (SAN)?
Landing cheap one-way United Airlines flights from MEM to SAN from $139 on Expedia is simple — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $282 for your next break.**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 MEM to SAN with United Airlines?
United Airlines flights to San Diego are usually cheaper in the low-season months of January and November. Whether you're after a one-way or a return ticket, you could find a better deal then.
What is the cheapest time to book flights from Memphis Intl. Airport (MEM) to San Diego Intl. Airport (SAN) with United Airlines?
For cheap United Airlines fares from Memphis Intl. Airport (MEM) to San Diego Intl. Airport (SAN), start searching one to three months before your intended departure. Securing 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 the cost. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book 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.
Does United Airlines fly nonstop from Memphis Intl. Airport (MEM) to San Diego Intl. Airport (SAN)?
Fill in your dates, press search and check "Nonstop" on Expedia to find any direct flights from MEM to SAN with United Airlines or another carrier.
What is the earliest United Airlines flight from MEM to SAN?
Search United Airlines's earliest flights from MEM to SAN by checking our "Early Morning" and "Morning" filters. Not only will you arrive sooner, early departures are also 20% less likely to be 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 United Airlines fly into in San Diego?
San Diego Intl. Airport (SAN) is the main San Diego gateway for United Airlines flights from Memphis Intl. Airport (MEM).
Why fly with United Airlines from MEM to SAN?
A rewarding loyalty program and the chance to rack up points through United Mileage Plus are the start of the reasons to fly from MEM to SAN with United Airlines. Plus, when you sign up to Expedia's free One Key™ program, you can earn OneKeyCash™* alongside United Airlines's loyalty program earnings. You can put it toward your future trips.*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 United Airlines flight from Memphis Intl. Airport (MEM) to San Diego Intl. Airport (SAN)?
In most cases, you can change or cancel your flight, although there may be a charge if you made your booking over 24 hours ago. Prefer to keep your options open? Use Expedia's "No cancel fee" or "Changes included" filter to find flights that won't penalize you if you have to adjust your plans. To update your itinerary, visit "Trips," select your flight and click on "Manage Booking" for further information.

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*Available to One Key members.