Search & Compare - Denver to San Antonio Flights & Tickets

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Cheap flights from Denver to San Antonio (DEN to SAT)

Looking for a cheap last-minute deal or the best round-trip flight from Denver to San Antonio? Find the biggest savings on one-way and round-trip tickets right here.

Recent airfare deals on Denver to San Antonio

Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-22
San Antonio
2025-04-29
USD 64

Round Trip F9 Nonstop Economy fare found on 2025-04-02
Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-22
San Antonio
2025-04-29
USD 64

Round Trip F9 Nonstop Economy fare found on 2025-04-02
Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-27
San Antonio
USD 65

One-way F9 Nonstop Economy fare found on 2025-03-29
Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-27
San Antonio
USD 65

One-way F9 Nonstop Economy fare found on 2025-03-29
Frontier Airlines  F9
Frontier Airlines
Denver
2025-05-09
San Antonio
USD 74

One-way F9 Nonstop Economy fare found on 2025-04-08
Frontier Airlines  F9
Frontier Airlines
Denver
2025-05-09
San Antonio
USD 74

One-way F9 Nonstop Economy fare found on 2025-04-08
Southwest Airlines  WN
Southwest Airlines
Denver
2025-04-27
San Antonio
USD 79

One-way WN Nonstop Economy fare found on 2025-03-29
Southwest Airlines  WN
Southwest Airlines
Denver
2025-04-27
San Antonio
USD 79

One-way WN Nonstop Economy fare found on 2025-03-29
Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-24
San Antonio
2025-04-28
USD 83

Round Trip F9 Nonstop Economy fare found on 2025-03-11
Frontier Airlines  F9
Frontier Airlines
Denver
2025-04-24
San Antonio
2025-04-28
USD 83

Round Trip F9 Nonstop Economy fare found on 2025-03-10


*Prices are per person and are for e-tickets and include all taxes & fees in USD.
*Fareleaders always attempts to get accurate pricing, however, prices are not guaranteed.
*Fareleaders is not seller, we aggregate tones of data for you from other online travel agencies and external sources.

Facts to know while booking flights from Denver to San Antonio

What are the airports in Denver?
DEN
What’s the most popular airline flying from DEN to SAT?
The most popular airline flying from Denver to San Antonio are American Airlines, Southwest Airlines, Frontier Airlines, United Airlines, Delta Airlines
Can I fly from DEN to SAT non-stop?
Yes, you can fly DEN to SAT non-stop on Southwest Airlines, Frontier Airlines, United Airlines
Which airlines fly nonstop between Denver and San Antonio?
The non-stop flights between Denver and San Antonio are Southwest Airlines, Frontier Airlines, United Airlines.
What’s the earliest departure time from DEN to SAT Airport?
The earliest flight leaves DEN at 5: am and lands in SAT - San Antonio International
What are the airports in San Antonio?
SAT
Can I make changes to my Denver to San Antonio flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from DEN to SAT?
Read the fare rules of the Denver to San Antonio air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Denver and San Antonio?
Oneworld, NULL, NULL, Star Alliance, SkyTeam operate flights between Denver and San Antonio
How long does a flight from Denver to San Antonio take?
It takes approximately 2 hour to fly non-stop from DEN to SAT, which is 794.17 miles by air.
Which airlines provide the cheapest flights from Denver (DEN) to San Antonio (SAT) ?
In the past couple of days, the cheapest tickets to SAT from DEN were found on Frontier Airlines : USD 64
Do I need a passport to fly between DEN and SAT?
No
What’s the latest departure time from DEN to SAT ?
The last flight leaves DEN at 10:30 pm

Essential Information for Booking Flights from Denver to San Antonio - AI Insights

What's the cheapest airline from den to sat?
Frontier Airlines (F9), offers the most affordable fares from Denver to San Antonio, with a round trip ticket for one person in Economy.
What's the popular airline to fly from den to sat?
United Airlines (UA) offers popular routes from Denver to San Antonio, with a round-trip fare for one passenger in economy class.
What's the cheapest day of the week to fly from den to sat?
Tuesday is the cheapest day to fly from Denver to San Antonio.
What's the cheapest month to fly from den to sat?
March is the cheapest month to fly from Denver to San Antonio.
What is the cheapest airline to fly from Denver to San Antonio?
Frontier Airlines (F9) typically offers the lowest fares for flights from Denver to San Antonio.
Can you tell me about the cheapest airline to travel with?
Frontier Airlines (F9) is frequently cited as offering the most affordable travel options for flights from Denver to San Antonio.

Flights from Denver to San Antonio

Origin AirportDenver International , Denver, US
Destination AirportSan Antonio International , San Antonio, US
Served by AirlinesAmerican Airlines, Southwest Airlines, Frontier Airlines, United Airlines, Delta Airlines
Lowest PriceFrontier Airlines : USD 64
Distance794 miles

Airlines Flying from Denver International

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