$124 Cheap United flights McAllen (MFE) to San Diego (SAN)

View $124 flight on Sat, Sep 27, 2025Opens in a new window

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$124 Cheap United flights McAllen (MFE) to San Diego (SAN)

Prices were available within the past 7 days and start at $124 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 23 - Wed, Sep 24
MFE
McAllen
SAN
San Diego
$240 Roundtrip, found 5 days ago
$240
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 23 from McAllen to San Diego, returning Wed, Sep 24, priced at $240 found 5 days ago
United
Fri, Oct 3 - Sat, Oct 18
MFE
McAllen
SAN
San Diego
$251 Roundtrip, found 6 days ago
$251
Roundtrip
found 6 days ago
Select United flight, departing Fri, Oct 3 from McAllen to San Diego, returning Sat, Oct 18, priced at $251 found 6 days ago
United
Tue, Sep 23 - Wed, Sep 24
MFE
McAllen
SAN
San Diego
$258 Roundtrip, found 5 days ago
$258
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 23 from McAllen to San Diego, returning Wed, Sep 24, priced at $258 found 5 days ago
United
Tue, Sep 30 - Sat, Oct 4
MFE
McAllen
SAN
San Diego
$259 Roundtrip, found 4 days ago
$259
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from McAllen to San Diego, returning Sat, Oct 4, priced at $259 found 4 days ago
United
Tue, Sep 30 - Sat, Oct 4
MFE
McAllen
SAN
San Diego
$261 Roundtrip, found 4 days ago
$261
Roundtrip
found 4 days ago
Select United flight, departing Tue, Sep 30 from McAllen to San Diego, returning Sat, Oct 4, priced at $261 found 4 days ago
United
Sat, Sep 27 - Sat, Oct 4
MFE
McAllen
SAN
San Diego
$263 Roundtrip, found 2 hours ago
$263
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Sep 27 from McAllen to San Diego, returning Sat, Oct 4, priced at $263 found 2 hours ago
Flights from McAllen (MFE) to San Diego (SAN)
Origin airport
Miller Intl.
Destination airport
San Diego Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
American Airlines
Distance
1224 mi

Frequently asked questions

How much is a United Airlines flight from Miller Intl. Airport (MFE) to San Diego Intl. Airport (SAN)?
You can find budget-friendly return United Airlines flights from $240 from MFE to SAN by organizing your results from "Price (lowest to highest)" on Expedia. Or look for bargains from $124 for a one-way journey.**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 MFE to SAN with United Airlines?
United Airlines flights to San Diego are typically more affordable in the quieter months of January and November. Whether you need a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Miller Intl. Airport (MFE) to San Diego Intl. Airport (SAN) with United Airlines?
To find cheap United Airlines fares from Miller Intl. Airport (MFE) to San Diego Intl. Airport (SAN), start searching one to three months before your planned 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 impact the overall cost. Sunday is typically the cheapest, 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.
Does United Airlines fly nonstop from Miller Intl. Airport (MFE) to San Diego Intl. Airport (SAN)?
To find out if there's a direct route from MFE to SAN with United Airlines or another carrier, check the "Nonstop" filter when searching for tickets.
What is the earliest United Airlines flight from MFE to SAN?
To find the earliest departure from MFE to SAN with United Airlines, filter your search by "Early Morning" and "Morning." Choosing an early flight usually means you're less likely to experience cancellations.**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?
Jump on a United Airlines flight from Miller Intl. Airport (MFE) to San Diego, and you'll most likely touch down at San Diego Intl. Airport (SAN). This is the airline's main hub in this destination.
Why fly with United Airlines from MFE to SAN?
A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to leave from MFE to SAN with United Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to spend 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 United Airlines flight from Miller Intl. Airport (MFE) to San Diego Intl. Airport (SAN)?
Depending on the ticket type you purchased, a fee is typically charged if you cancel or reschedule your flight more than 24 hours after it's been confirmed. To secure plane tickets with more flexibility, select our "Changes included" or "No cancel fee" filter when looking for flights. To learn more about canceling or modifying your reservation, go to "Trips," select your flight and tick "Manage Booking."

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