$49 Find Cheap Flights from San Antonio to Denver - Compare and Save

Denver International Airport (DEN) is about 35min from downtown. The city has a light rail system that goes from the airport to Denver Union Station, which is in the heart of the city. To catch the train, you can do so at the rail station which is close to the airport hotel.

Before boarding your plane, you can enjoy dining at a variety of restaurants. If you want something quick, there is a pretzel shop and a submarine sandwich shop in the terminal. If you're looking to sit down and dine, there is a pizzeria, a Mexican eatery, and a Mediterranean cafe.

There are several car rental agencies with offices at this Colorado airport. Therefore, you'll have your pick of companies to rent from including Hertz, National, and Thrifty. To get to the car rental offices, you'll catch a shuttle from outside of baggage claim. Simply look for the shuttle with the name of your car rental company. When you return the car, you'll drop it off and ride the shuttle back to the airport to catch your flight.

There is a spa at the airport in the Mezzanine where you can get a massage or another spa service. You can enjoy a quick bite at the pretzel or coffee shop, or a sit-down meal at the steakhouse or sports bar.

Among airlines operating San Antonio to Denver flights:

• Frontier: offers free seat selection
• United Airlines: offers extra legroom; offers free seat selection
• Southwest: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

3 airlines operate flights between San Antonio and Denver. The airlines offering nonstop flights on this route include:

• Southwest
• United Airlines
• Frontier

Flights from San Antonio to Denver usually depart from San Antonio (SAT) and arrive at Denver Intl (DEN).

Here are some options for this route, based on selected ticket types and cabin classes:

• United Airlines: a cabin bag and a checked bag in Economy Class
• Frontier: a cabin bag and a checked bag in Business Class
• Southwest: a cabin bag in Economy Class class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Three cabin classes are available on flights from San Antonio to Denver:

• Economy Class
• Business Class
• First Class

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $223 round-trip via Las Vegas Harry Reid Intl (LAS), compared to $235 for nonstop.

There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $40–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

The Boeing 737-800 Passenger/BBJ2 (winglets) family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737 MAX 8 variants.

One-stop flights from San Antonio to Denver most commonly connect through:

• Dallas/Fort Worth (DFW) - 65% of one-stop connections
• Las Vegas Harry Reid Intl (LAS) - 25% of one-stop connections
• Salt Lake City (SLC) - 10% of one-stop connections

Dallas/Fort Worth (DFW) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 24% on the San Antonio to Denver route. Thursday is the cheapest departure day at $215 round-trip on average, while Sunday is the most expensive at $280, a difference of $65. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

Morning is the busiest departure period on San Antonio to Denver flights, with 38% of flights leaving in that window. Afternoon departures account for 37%, evening flights for 25%, and night flights for 0%.

Some of the most popular sights in Denver are Colorado Convention Center, Union Station Denver and Coors Field. These are among the most viewed places in Denver on KAYAK.

These are the earliest and latest flight times available from San Antonio to Denver:

• Earliest: departs at 5:30 am and lands at 7:51 am
• Latest: departs at 8:26 pm and lands at 10:47 pm.

The flight takes about 2h 21m.

Last-minute fares on this route - booked within 2 weeks of departure - run 36% above the route average of $237. Book 8 weeks before departure for the lowest fares.

A nonstop flight from San Antonio to Denver takes 2h 21m, covering 795 miles.

No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $127 to $1,236. That means the highest observed fare was about 10x higher than the lowest one.

One-way fares from San Antonio to Denver are currently lower than usual. Average one-way flight prices are about $100, which is 40% below the typical average for this route.

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 4h 50m, compared with 5h 59m via Salt Lake City (SLC) and 8h 42m via Las Vegas Harry Reid Intl (LAS).

Denver is 1 hour behind San Antonio (Mountain Time vs Central Time). Plan for the time shift when scheduling connections or first-day activities.

Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:
· Routes Car & Truck Rentals
· Ace
· NU Car
· Europcar
· Hertz

Round-trip flights from San Antonio to Denver range from $145 to $340, with an average of $237 over the past 12 months. Anything below $145 counts as a good deal.