Denver (DEN) to San Antonio (SAT)
Flight time
≈ 2h 23m
Bearing
152° SE
Denver (DEN) to San Antonio (SAT) is 795 miles (1,280 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies DEN–SAT
US DOT T-100 · filed dataIn April 2026, Southwest Airlines operated the most departures, one of 4 carriers flying nonstop DEN–SAT; the Boeing 737-800 was the most common aircraft at 33% of departures; flights ran 76% full.
Departures
503
April 2026
Seats
81,564
both directions
Passengers
62,252
both directions
Load factor
76.3%
passengers ÷ seats
Who flies DEN–SAT?
Southwest Airlines operated the most nonstop DEN–SAT departures in April 2026 (259), one of 4 carriers on the route.
- WN
Southwest Airlines
259 departures · 40,689 seats
Share of departures51.5%70.3%
Load
- UA
United Airlines
180 departures · 28,421 seats
Share of departures35.8%85.0%
Load
- F9
Frontier Airlines
60 departures · 12,166 seats
Share of departures11.9%76.0%
Load
- DL
Delta Air Lines
4 departures · 288 seats
Share of departures0.8%83.0%
Load
What plane flies DEN–SAT?
In April 2026, the Boeing 737-800 flew 33% of DEN–SAT departures — more than any other aircraft type.
- Boeing 737-800
166 departures · 75.8% load
33.0% - Boeing 737-700
122 departures · 71.7% load
24.3% - Airbus A320
67 departures · 86.7% load
13.3% - Boeing 737 MAX 8
66 departures · 74.6% load
13.1% - Airbus A320neo
30 departures · 85.2% load
6.0% - Airbus A321neo
19 departures · 64.8% load
3.8% - Airbus A319
15 departures · 88.9% load
3.0% - Boeing 737-900ER
9 departures · 74.9% load
1.8% - Airbus A321
5 departures · 59.3% load
1.0% - Boeing 757-200
4 departures · 83.0% load
0.8%
How has DEN–SAT traffic changed?
Nonstop DEN–SAT departures fell from 538 in May 2025 to 503 in April 2026.
Monthly nonstop DEN–SAT traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
538 departures · 66,163 passengers
78.6%
Load
June 2025
531 departures · 69,566 passengers
79.9%
Load
July 2025
553 departures · 73,231 passengers
82.0%
Load
August 2025
473 departures · 59,340 passengers
76.4%
Load
September 2025
442 departures · 58,390 passengers
78.8%
Load
October 2025
505 departures · 67,151 passengers
82.5%
Load
November 2025
485 departures · 59,248 passengers
71.0%
Load
December 2025
564 departures · 70,425 passengers
74.6%
Load
January 2026
451 departures · 56,633 passengers
74.9%
Load
February 2026
384 departures · 53,395 passengers
83.0%
Load
March 2026
596 departures · 76,243 passengers
76.3%
Load
April 2026
503 departures · 62,252 passengers
76.3%
Load
By direction
The DOT files each direction separately — they rarely match.
DEN → SAT
74.7% full
252 departures · 30,329 passengers
SAT → DEN
78.0% full
251 departures · 31,923 passengers
Nonstop DEN–SAT traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Frequently asked
How far is Denver (DEN) from San Antonio (SAT)?
DEN to SAT is 795 miles (1,280 km / 691 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from DEN to SAT?
A nonstop covers the 795-mile great-circle distance in roughly 2h 23m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies DEN–SAT?
In April 2026, the Boeing 737-800 flew the largest share of departures (33.0%), followed by the Boeing 737-700 (24.3%).
What mileage do I earn flying DEN–SAT?
Distance-based programs credit off the 795-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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