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Cheap flights Denver — San Antonio

Denver (DEN, US) San Antonio (SAT, US)
from $109 1 291 km ~2h 1m 2 flights found 2 airlines cheapest on Thursday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $109 on 24.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
24 Dec 2026, Thu
Frontier Airlines F9 2015
16:10
DEN Denver International Airport
20:57
SAT San Antonio International Airport
4h 47m 1 stop
Farera
$109
View this ticket
25 Dec 2026, Fri
United Airlines UA 5323
06:34
DEN Denver International Airport
08:59
SAT San Antonio International Airport
2h 25m Direct
Farera
$127
View this ticket
Route characteristics
Distance
1 291 km
Flight time
2h 1m
Time difference
+1h
Minimum price
from $109 (24.12.2026)
Average price
$118
Maximum price
$127
Cheapest day
Thursday
Departure airports (1)
DEN Denver International Airport
Arrival airports (1)
SAT San Antonio International Airport
Airlines (2)
F9 Frontier Airlines UA United Airlines
Agencies (1)
Farera
Prices by day of week
Thursday
$109
avg $109
Cheapest
Friday
$127
avg $127
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$109
United Airlines
United Airlines
1 flights · 1 days
$127
Where to buy tickets 1
Farera
2 tickets · 2 days
from $109
Airports

From — Denver (1)

  • DEN Denver International Airport

To — San Antonio (1)

  • SAT San Antonio International Airport
Other destinations from Denver
Dallas
US · Hub
Los Angeles
US · Hub
Miami
US · Hub
Seattle
US
Regina
CA
Vancouver
CA
Winnipeg
CA
Saskatoon
CA
Calgary
CA
Boston
US
Atlanta
US · Hub
Cincinnati
US
Frequently asked questions about the route Denver — San Antonio
How long is the flight from Denver to San Antonio?
Approximate flight time — 2h 1m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Denver to San Antonio?
The straight-line distance — 1 291 km.
How much do flights from Denver to San Antonio cost?
The minimum price over 3 months — from $109 on 24.12.2026.
What is the average ticket price?
The average price — $118. Range: $109 — $127.
What is the time difference between Denver and San Antonio?
The difference — +1h.
From which airports does Denver operate flights?
From Denver: DEN (Denver International Airport).
To which airports in San Antonio do flights arrive?
To San Antonio: SAT (San Antonio International Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, United Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $127. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Thursday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Denver — San Antonio

Flights Denver — San Antonio is a popular route. The straight-line distance is 1 291 km. Flight time 2h 1m. Time difference +1h.

From Denver (DEN) flights depart from 1 airport: DEN. To San Antonio (SAT) — 1 arrival airport: SAT.

2 airlines operate on this route: Frontier Airlines, United Airlines.

The minimum price for the next 3 months — from $109 (24.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $118, ranging from $109 to $127. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Thursday.

Other destinations in United States from Denver
Dallas
US
Los Angeles
US
Miami
US
Seattle
US
Boston
US
Atlanta
US
Cincinnati
US
Memphis
US

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