Domestic route
Cheap flights from Denver to San Antonio
Denver International Airport (DEN) to San Antonio International Airport (SAT). 795 miles, 2h nonstop.
DEN to SAT at a glance
Computed from airline schedules and the fares we track for this route. Refreshed several times a day.
- Distance
- 795 milesgreat-circle
- Typical flight time
- 2hnonstop, gate to gate
- Nonstop airlines
- AAUAWNB68 airlinesAmerican, United, Southwest
- Nonstop flights per day
- 22all airlines combined
- Cheapest month
- January 2027over the next six months
- Best day to fly
- Wednesday19% less than Sunday
- Time difference
- 1h aheadSan Antonio vs Denver
Denver to San Antonio
Round trips from $79
Per traveler, taxes and fees included. Lowest fare we found departs Tue, Jan 5.
Cheapest month: January 2027
See fares on these datesLock any fare free — pay only when you accept your last-minute deal
Or ask an agent on WhatsAppDenver to San Antonio fares by month
Lowest round-trip economy fare per traveler in each of the next six months, taxes and fees included. Select a month to search that date.
Airlines flying Denver to San Antonio
8 airlines fly nonstop with 22 departures a day combined.
- UAUnited AirlinesStar AllianceNonstop · 5 flights a day · first checked bag from $40
- F9Frontier AirlinesLow-costNonstop · 4 flights a day · first checked bag from $55
- WNSouthwest AirlinesLow-costNonstop · 3 flights a day · first checked bag from $35
- ASAlaska AirlinesoneworldNonstop · 2 flights a day · first checked bag from $35
- AAAmerican AirlinesoneworldNonstop · 2 flights a day · first checked bag from $40
- B6JetBlueNonstop · 2 flights a day · first checked bag from $40
- NKSpirit AirlinesLow-costNonstop · 2 flights a day · first checked bag from $55
- SYSun Country AirlinesLow-costNonstop · 2 flights a day · first checked bag from $45
Connecting options
Every itinerary on this route is nonstop or uses an unusual connection; run a search for specifics.
Tips for this route
- American, United, Southwest and JetBlue all fly DEN to SAT nonstop, so compare the total with bags before picking the lowest base fare: the difference between a basic and a standard economy ticket is often less than one checked bag each way.
- January 2027 is the cheapest month to fly over the next six months, with round trips from $79; September 2026 is the most expensive at $103 and up, a difference of $24 per traveler.
- Departing on a Wednesday averages 19% less than a Sunday on this route. If your dates are flexible, shift the outbound by a day or two and check the calendar view before you book.
- Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks.
Ready to compare live fares?
See every airline on DEN–SAT side by side with bags and seat rules spelled out.
Search Denver to San AntonioDenver to San Antonio: common questions
How long is the flight from Denver to San Antonio?
A nonstop flight from Denver (DEN) to San Antonio (SAT) takes about 2h gate to gate, covering 795 miles. Connecting itineraries add the layover, typically 1 to 3 hours more in total.
Which airlines fly nonstop from DEN to SAT?
American Airlines, United Airlines, Southwest Airlines, JetBlue, Alaska Airlines, Spirit Airlines, Frontier Airlines and Sun Country Airlines operate nonstop flights from Denver (DEN) to San Antonio (SAT), with 22 nonstop departures a day between them.
What is the cheapest month to fly from Denver to San Antonio?
Over the next six months, January 2027 has the lowest round-trip fares from Denver (DEN) to San Antonio (SAT), starting at $79 per traveler including taxes and fees. Within any month, Wednesday departures average the lowest prices.
How far in advance should I book Denver to San Antonio flights?
Fares on this route are usually lowest 4 to 8 weeks before departure and rise sharply inside two weeks. Air1 Tickets includes free cancellation within 24 hours of booking on every fare, so you can lock in a good price and keep looking.
What is the time difference between Denver and San Antonio?
San Antonio is 1 hour ahead of Denver. DEN is on America/Denver time and SAT on America/Chicago time. Departure and arrival times in search results are always shown in local time at each airport.
Related routes
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