$50 Find Cheap Flights from San Antonio to Denver - Compare and Save

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

• Earliest: departs at 5:26 am and lands at 7:46 am
• Latest: departs at 8:47 pm and lands at 11:07 pm.

The flight takes about 2h 20m.

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

• Economy Class
• Business Class
• First Class

A nonstop flight from San Antonio to Denver takes 2h 20m, 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.

Round-trip flights from San Antonio to Denver range from $151 to $349, with an average of $244 over the past 12 months. Anything below $151 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 50% above the $244 route average. Book 8 weeks before departure for the lowest fares.

On this route, nonstop flights are cheaper than layover options on average. Nonstop fares average $244 round-trip, compared to $294 via a layover through Las Vegas Harry Reid Intl (LAS).

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 MAX 8 family is used most often on this route, operated mainly by Southwest. Other aircraft seen on the route include Boeing 737-800 variants.

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%.

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $138 to $1,330. 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 44% below the typical average for this route.

Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $15 for economy cars. Top options include:

• Routes Car & Truck Rentals
• Ace
• Europcar
• NU Car
• Hertz

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

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

• Las Vegas Harry Reid Intl (LAS) - 48% of one-stop connections
• Dallas/Fort Worth (DFW) - 43% of one-stop connections
• Orlando (MCO) - 4% of one-stop connections
• Salt Lake City (SLC) - 4% of one-stop connections

Yes. Flexible dates can save you up to 22% on flights from San Antonio to Denver. Thursday is the cheapest departure day at $228 round-trip on average, while Sunday is the most expensive at $289, a difference of $61.

KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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

• Southwest
• United Airlines
• Frontier

Flying via Dallas/Fort Worth (DFW) gives the shortest average 1-stop total travel time at 5h 01m, compared with 6h 44m via Salt Lake City (SLC) and 10h 09m 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.

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

Among airlines operating San Antonio to Denver flights:

• Frontier: offers free seat selection
• United Airlines: offers free seat selection
• Southwest: offers free seat selection

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

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

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

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

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.