$289 Cheap United flights Salt Lake City (SLC) to San Antonio (SAT)

View $289 flight on Sat, Nov 29, 2025Opens in a new window

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$289 Cheap United flights Salt Lake City (SLC) to San Antonio (SAT)

Prices were available within the past 7 days and start at $289 for one-way flights and $453 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Oct 25 - Sat, Nov 1
SLC
Salt Lake City
SAT
San Antonio
$453 Roundtrip, found 4 hours ago
$453
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Oct 25 from Salt Lake City to San Antonio, returning Sat, Nov 1, priced at $453 found 4 hours ago
Flights from Salt Lake City (SLC) to San Antonio (SAT)
Origin airport
Salt Lake City Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Delta
Distance
1087 mi
Average flight time
3 hours 42 mins

Frequently asked questions

How much is a United Airlines flight from Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT)?
You'll discover budget-friendly return United Airlines flights from $453 from SLC to SAT by organizing your results from "Price (lowest to highest)" on Expedia. Or look for deals from $289 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.
What is the cheapest month to fly from SLC to SAT with United Airlines?
United Airlines flights to San Antonio are often more affordable in the quieter months of January and September. Whether you're searching for a round-trip or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT) with United Airlines?
Look for affordable United Airlines flights from Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT) one to three months prior to your departure day. 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. No matter the fare class and itinerary, the best day 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 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 United Airlines fly nonstop from Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT)?
Use the "Nonstop" filter when browsing for direct United Airlines flights from SLC to SAT. It's also a great way to compare other carriers servicing the same direct route.
What is the earliest United Airlines flight from SLC to SAT?
To find the earliest departures from SLC to SAT with United Airlines, sort your results by "Morning" and "Early 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 Antonio?
San Antonio Intl. Airport (SAT) is the primary San Antonio hub for United Airlines flights from Salt Lake City Intl. Airport (SLC).
Why fly with United Airlines from SLC to SAT?
Travel from SLC to SAT with United Airlines and you can look forward to a host of benefits starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you can also earn OneKeyCash™* to use on select future travel purchases.*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 Salt Lake City Intl. Airport (SLC) to San Antonio Intl. Airport (SAT)?
Depending on the type of fare you purchased, a fee typically applies if you modify or cancel your booking more than 24 hours after it's confirmed. To find flexible plane tickets, select our "Changes included" or "No cancel fee" filter while searching for flights. To learn more about canceling or modifying your reservation, visit "Trips," select your flight and click on "Manage Booking."

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