Cheap Flights from San Antonio to Denver
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Deals from
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Prices updated 24 days ago
486,190 searches this week
171 airlines compared
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Fares are subject to change and may not be available for all dates. (Data last updated May 29, 2026.)
Today’s best flight deals from San Antonio to Denver
Explore current cheapest deals departing from San Antonio to Denver
Round trip
Sort by: Cheapest
July 20 - August 4
SAT - Denver
$152
$128
Round trip
July 14 - August 4
SAT - Denver
$153
$128
Round trip
July 14 - July 20
SAT - Denver
$175
$128
Round trip
July 20 - August 17
SAT - Denver
$154
$133
Round trip
July 20 - August 11
SAT - Denver
$154
$133
Round trip
July 14 - August 11
SAT - Denver
$153
$133
Round trip
August 4 - August 11
SAT - Denver
$137
$133
Round trip
July 14 - July 21
SAT - Denver
$175
$133
Round trip
July 21 - August 4
SAT - Denver
$153
$133
Round trip
July 20 - July 21
SAT - Denver
$177
$133
Round trip
Unlock all 500+ flight deals to Denver and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from San Antonio to Denver
How much is a round trip from San Antonio to Denver
Regular price: $122 - $276
Prices for flights from San Antonio to Denver are currently within the regular range.
The regular price range for flights from San Antonio to Denver is between $122 and $276. The current lowest deal is $128 with Frontier Airlines, for travel from Jul 20-Aug 4.
now $128
Low $122
High $276
The cheapest time to fly from San Antonio to Denver
The cheapest month to fly from San Antonio to Denver is November, with a median price of $135. The most expensive month is June, with a median price of $440. Prices are generally lower from April to November.
November
Flights from $135
June
Flights from $440
Direct flights from San Antonio to Denver
Frontier Airlines
Last-minute flights going from San Antonio to Denver
Sat, Jul 4
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$191
$196
One-way
Mon, Jul 6
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$286
$265
One-way
Tue, Jul 7
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$178
$142
One-way
Tue, Jul 7
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$154
$142
One-way
Tue, Jul 7
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$158
$142
One-way
Wed, Jul 8
SAT - Denver
San Antonio (SAT) - Denver (DEN)
Frontier Airlines
$179
$142
One-way
Biggest price drops on these dates for flights from San Antonio to Denver
Jul 16 - Jul 20
$276 → $197
29%
Jul 14 - Jul 20
$175 → $128
27%
Jul 20 - Jul 21
$177 → $133
25%
Jul 14 - Jul 15
$182 → $138
24%
Popular Airports to fly from San Antonio to Denver
San Antonio - Denver route insights
💸 Price insights
Recent fares are above the typical level
Recent fares from San Antonio to Denver are above the typical level, with a median price of $245.
📅 Best time to fly
Fly in November for the best prices
Historically, November offers the lowest median prices at $135 for flights from San Antonio to Denver.
⏱️ Flight duration
Average flight time is 4h 46m
The typical flight duration from San Antonio to Denver is 4 hours and 46 minutes.
✈️ Airlines & availability
Direct flights are frequent
Approximately 61.3% of deals for this route are direct, with frequent deals available.
🏆 Airline highlight
Frontier Airlines offers direct flights
Frontier Airlines is one carrier providing direct flights on the San Antonio to Denver route.
🎯 Booking tip
Good prices are rare
Historically, only 2% of deals for this route are considered good prices.
San Antonio main airports to depart from
San Antonio International (SAT)
San Antonio International Airport is a convenient departure point for flights to Denver.
📍 ~15 km from San Antonio city center (reachable by car)
💸 Flights from ~$128
Denver main airports to arrive at
Denver International (DEN)
Denver International Airport is a primary gateway to Denver, offering convenient access to the city and surrounding areas.
📍 ~30 km from city center (reachable by car)
💸 Flights from ~$128
Airports nearby Denver used as alternative
Colorado Springs (COS)
Colorado Springs offers a robust flight schedule and reliable alternative for travelers to the Denver area.
📍 ~110 km from Denver (reachable by car)
💸 Flights from ~$257
Eagle County Regional (EGE)
Eagle County Regional is a primary alternative for travelers located in the western mountains, offering hub connectivity.
📍 ~180 km from Denver (reachable by car)
💸 Flights from ~$359
Aspen–Pitkin County (ASE)
Aspen–Pitkin County is popular with frequent service to major US hubs, including First Class options.
📍 ~200 km from Denver (reachable by car)
💸 Flights from ~$309
Cheyenne Regional (CYS)
Cheyenne Regional is geographically close to northern Denver, offering easy parking and fast security.
📍 ~150 km from Denver (reachable by car)
💸 Flights from ~$355
Yampa Valley (HDN)
Yampa Valley serves as a viable gateway for the Northwest Colorado region with business class service.
📍 ~250 km from Denver (reachable by car)
💸 Flights from ~$320
Business & First Class Flight Deals to Denver
Discover luxury on the budget with premium cabin class on flights from San Antonio to Denver.
Elite
Best Elite deals to Denver
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From SAT
Elite
Aug 05
Denver, United States
84% AI deal score
$1,130
$555
Save $575
From SAT
Elite
Dec 08
Denver, United States
81% AI deal score
$1,374
$717
Save $657
From SAT
Elite
Aug 18
Denver, United States
78% AI deal score
$774
$537
Save $237
From SAT
Elite
Aug 13
Denver, United States
76% AI deal score
$841
$535
Save $306
From SAT
Elite
Aug 08
Denver, United States
76% AI deal score
$850
$535
Save $315
From SAT
Elite
Aug 04
Denver, United States
76% AI deal score
$850
$537
Save $313
From SAT
Elite
Aug 06
Denver, United States
75% AI deal score
$740
$569
Save $171
From SAT
Elite
Aug 02
Denver, United States
75% AI deal score
$962
$707
Save $255
From SAT
Elite
Sep 17
Denver, United States
75% AI deal score
$786
$534
Save $252
From SAT
Elite
Sep 26
Denver, United States
75% AI deal score
$804
$535
Save $269
From SAT
Elite
Oct 10
Denver, United States
75% AI deal score
$791
$535
Save $256
From SAT
Elite
Sep 16
Denver, United States
75% AI deal score
$809
$535
Save $274
From SAT
Elite
Aug 24
Denver, United States
75% AI deal score
$830
$551
Save $279
From SAT
Elite
Sep 26
Denver, United States
75% AI deal score
$809
$551
Save $258
From SAT
Elite
Aug 29
Denver, United States
75% AI deal score
$837
$551
Save $286
From SAT
Elite
Jul 07
Denver, United States
74% AI deal score
$648
$524
Save $124
From SAT
Elite
Sep 05
Denver, United States
70% AI deal score
$691
$569
Save $122
From SAT
Elite
Jul 22
Denver, United States
70% AI deal score
$783
$637
Save $146
From SAT
Elite
Jul 07
Denver, United States
70% AI deal score
$639
$519
Save $120
From SAT
Elite
Jul 15
Denver, United States
70% AI deal score
$641
$519
Save $122
From SAT
Elite
Jul 08
Denver, United States
70% AI deal score
$639
$519
Save $120
From SAT
Elite
Jul 08
Denver, United States
69% AI deal score
$3,024
$2,027
Save $997
From SAT
Elite
Jul 08
Denver, United States
69% AI deal score
$3,070
$2,087
Save $983
From SAT
Elite
Jul 28
Denver, United States
69% AI deal score
$768
$637
Save $131
From SAT
Elite
Jul 28
Denver, United States
69% AI deal score
$756
$637
Save $119
From SAT
Elite
Jul 29
Denver, United States
69% AI deal score
$768
$637
Save $131
From SAT
Elite
Jul 10
Denver, United States
69% AI deal score
$771
$649
Save $122
From SAT
Elite
Aug 04
Denver, United States
69% AI deal score
$881
$707
Save $174
From SAT
Elite
Aug 06
Denver, United States
69% AI deal score
$916
$723
Save $193
From SAT
Elite
Aug 04
Denver, United States
69% AI deal score
$831
$619
Save $212
From SAT
Elite
Aug 06
Denver, United States
69% AI deal score
$840
$635
Save $205
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,733
$1,969
Save $764
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,734
$1,972
Save $762
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,801
$1,972
Save $829
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,730
$1,977
Save $753
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,730
$1,977
Save $753
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,726
$1,979
Save $747
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,730
$1,982
Save $748
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,710
$2,027
Save $683
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,730
$2,044
Save $686
From SAT
Elite
Jul 08
Denver, United States
68% AI deal score
$2,712
$2,058
Save $654
From SAT
Elite
Jul 22
Denver, United States
68% AI deal score
$734
$637
Save $97
From SAT
Elite
Aug 31
Denver, United States
68% AI deal score
$768
$665
Save $103
From SAT
Elite
Aug 02
Denver, United States
68% AI deal score
$830
$647
Save $183
From SAT
Elite
Jul 08
Denver, United States
67% AI deal score
$2,832
$2,277
Save $555
From SAT
Elite
Aug 19
Denver, United States
67% AI deal score
$793
$707
Save $86
From SAT
Elite
Jul 08
Denver, United States
66% AI deal score
$2,730
$2,348
Save $382
From SAT
Elite
Jul 20
Denver, United States
66% AI deal score
$682
$637
Save $45
From SAT
Elite
Aug 12
Denver, United States
66% AI deal score
$781
$707
Save $74
From SAT
Elite
Jul 15
Denver, United States
66% AI deal score
$771
$707
Save $64
From SAT
Elite
Jun 29
Denver, United States
66% AI deal score
$887
$829
Save $58
From SAT
Elite
Jul 14
Denver, United States
65% AI deal score
$2,711
$2,410
Save $301
From SAT
Elite
Jul 14
Denver, United States
65% AI deal score
$2,708
$2,410
Save $298
From SAT
Elite
Jul 06
Denver, United States
65% AI deal score
$2,721
$2,489
Save $232
From SAT
Elite
Jul 06
Denver, United States
65% AI deal score
$2,726
$2,489
Save $237
From SAT
Elite
Jul 06
Denver, United States
65% AI deal score
$2,729
$2,500
Save $229
From SAT
Elite
Jul 11
Denver, United States
65% AI deal score
$676
$649
Save $27
From SAT
Elite
Jul 28
Denver, United States
65% AI deal score
$654
$619
Save $35
From SAT
Elite
Jul 20
Denver, United States
50% AI deal score
$771
$737
Save $34
From SAT
Elite
Aug 04
Denver, United States
49% AI deal score
$2,303
From SAT
Elite
Aug 04
Denver, United States
49% AI deal score
$2,359
$2,327
Save $32
From SAT
Elite
Jul 19
Denver, United States
49% AI deal score
$771
$749
Save $22
From SAT
Elite
Jul 14
Denver, United States
48% AI deal score
$689
From SAT
Elite
Jul 22
Denver, United States
48% AI deal score
$689
From SAT
Elite
Jul 22
Denver, United States
48% AI deal score
$714
From SAT
Elite
Aug 12
Denver, United States
46% AI deal score
$2,453
From SAT
Elite
Jul 13
Denver, United States
46% AI deal score
$749
From SAT
Elite
Jul 09
Denver, United States
46% AI deal score
$819
From SAT
Elite
Jul 11
Denver, United States
46% AI deal score
$819
From SAT
Elite
Aug 31
Denver, United States
46% AI deal score
$2,474
From SAT
Elite
Aug 04
Denver, United States
45% AI deal score
$2,303
From SAT
Elite
Jul 03
Denver, United States
45% AI deal score
$2,816
From SAT
Elite
Jul 05
Denver, United States
45% AI deal score
$795
From SAT
Elite
Jul 10
Denver, United States
45% AI deal score
$819
From SAT
Elite
Sep 10
Denver, United States
45% AI deal score
$2,871
From SAT
Elite
Aug 04
Denver, United States
43% AI deal score
$2,281
From SAT
Elite
Aug 04
Denver, United States
43% AI deal score
$2,327
From SAT
Elite
Aug 04
Denver, United States
43% AI deal score
$2,327
From SAT
Elite
Aug 04
Denver, United States
43% AI deal score
$2,337
From SAT
Elite
Aug 04
Denver, United States
42% AI deal score
$2,310
From SAT
Elite
Aug 04
Denver, United States
42% AI deal score
$2,343
From SAT
Elite
Aug 04
Denver, United States
42% AI deal score
$2,377
From SAT
Elite
Jul 16
Denver, United States
41% AI deal score
$807
From SAT
Elite
Jul 30
Denver, United States
41% AI deal score
$807
From SAT
Elite
Jul 17
Denver, United States
41% AI deal score
$807
From SAT
Elite
Jun 24
Denver, United States
41% AI deal score
$954
From SAT
Elite
Jun 23
Denver, United States
41% AI deal score
$978