Denver to San Antonio

Updated: 28 May 2026

The journey from Denver to San Antonio covers about 1,500 kilometers. Driving via US-287 South takes approximately 14 to 15 hours through Colorado, Oklahoma, and Texas. Alternatively, you can fly from Denver International Airport (DEN) to San Antonio International Airport (SAT), which takes about 2.5 hours on a direct flight. San Antonio is known for its historic missions, the Alamo, and the River Walk.

Total Distance: Driving distance 1,500 km, straight-line air distance 1,300 km.

Fastest Way

Direct flight from DEN to SAT is the fastest.

Cheapest Way

Budget airlines offer the most affordable travel.

Compare Denver to San Antonio Routes

	Flight Direct	Driving Direct
Duration	2 hours 30 mins	14 hours 30 mins
Avg Price	$120-$300	$160-$220 in fuel
Operator	Southwest Airlines	Personal Vehicle
Route	DEN to SAT	US-287 South to I-35 South.
Tip	Frequent daily flights are available.	US-287 is a major trucking route; drive carefully.

Travel Tips

Traffic
San Antonio traffic can be heavy; plan your travel accordingly.
Airport Transit
Use ride-sharing services to get from SAT to downtown.
Dining
Explore the diverse food scene, especially the Tex-Mex.
Weather
Summers are very hot; plan for indoor activities.
Car Rental
A car is essential for exploring the sprawling San Antonio area.

Safety Tips

Highway Safety
Stay alert on US-287, as it has many small towns with speed traps.
Emergency Prep
Carry plenty of water for the drive.
Night Driving
Avoid driving through major cities late at night.
Stay Alert
Use GPS to navigate the city's complex streets.