Cheap Flights from Seattle to San Antonio
Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to San Antonio
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 Seattle to San Antonio
Explore current cheapest deals departing from Seattle to San Antonio
Round trip
Sort by: Cheapest
September 2 - September 9
SEA - San Antonio
$352
$179
Round trip
December 3 - December 8
SEA - San Antonio
$363
$195
Round trip
September 12 - September 16
SEA - San Antonio
$369
$196
Round trip
September 18 - September 22
SEA - San Antonio
$373
$211
Round trip
November 3 - November 6
SEA - San Antonio
$440
$212
Round trip
October 1 - October 7
SEA - San Antonio
$372
$218
Round trip
September 18 - September 21
SEA - San Antonio
$373
$227
Round trip
July 7 - July 8
SEA - San Antonio
$348
$240
Round trip
July 17 - July 20
SEA - San Antonio
$338
$240
Round trip
July 17 - July 22
SEA - San Antonio
$332
$240
Round trip
Unlock all 500+ flight deals to San Antonio and get alerts when great deals appear
Route Intelligence — 486,190 Searches this Week
Insights for flights from Seattle to San Antonio
How much is a round trip from Seattle to San Antonio
Regular price: $277 - $381
Prices for flights from Seattle to San Antonio are currently below the regular range.
Regular prices for flights from Seattle to San Antonio typically range from $277 to $381. The current lowest deal is $179 with Deutsche Luft Hansa, for travel from Sep 2 to Sep 9.
now $179
Low $277
High $381
The cheapest time to fly from Seattle to San Antonio
The cheapest month to fly from Seattle to San Antonio is January, with a median price of $128. The most expensive month is September, with a median price of $546. Prices are generally lower from January to December.
January
Flights from $128
September
Flights from $546
Direct flights from Seattle to San Antonio
Alaska Airlines, Inc.
Last-minute flights going from Seattle to San Antonio
Wed, Jun 17
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
Frontier Airlines
$496
$354
One-way
Wed, Jun 17
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
Deutsche Luft Hansa
$488
$380
One-way
Thu, Jun 18
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
American Airlines
$488
$354
One-way
Thu, Jun 18
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
Deutsche Luft Hansa
$445
$354
One-way
Thu, Jun 18
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
American Airlines
$496
$400
One-way
Fri, Jun 19
SEA - San Antonio
Seattle (SEA) - San Antonio (SAT)
Deutsche Luft Hansa
$486
$352
One-way
Biggest price drops on these dates for flights from Seattle to San Antonio
Nov 3 - Nov 6
$440 → $212
52%
Nov 4 - Nov 8
$444 → $246
45%
Nov 6 - Nov 10
$444 → $246
45%
Jun 23 - Jun 25
$453 → $278
39%
Popular Airports to fly from Seattle to San Antonio
Seattle - San Antonio route insights
💸 Price insights
Recent fares near the typical level
Recent fares for Seattle to San Antonio are near the typical level of $376.
📅 Best time to fly
January is historically cheapest at $128
Historically, January is the cheapest month to fly from Seattle to San Antonio, with a median price of $128.
⏱️ Flight duration
Typically 8h 41m to San Antonio
Flights from Seattle to San Antonio typically take 8 hours and 41 minutes.
✈️ Airlines & availability
Frequent deals to San Antonio
Deals for flights from Seattle to San Antonio are frequent, with over 1 deal per day.
🏆 Airline highlight
Deutsche Luft Hansa offers a $179 deal
Deutsche Luft Hansa has a deal for $179 from Seattle to San Antonio.
🎯 Booking tip
Consider connecting flights for more options
About half of all deals for this route include connecting flights, typically with 2 stopovers.
Seattle main airports to depart from
Seattle–Tacoma International (SEA)
Seattle–Tacoma International is a key departure point for flights from Seattle to San Antonio.
📍 ~18 km from Seattle city center (reachable by car or train)
💸 Flights from ~$179
Boeing Field (BFI)
Boeing Field offers an alternative departure option for flights from Seattle to San Antonio.
📍 ~8 km from Seattle city center (reachable by car)
💸 Flights from ~$735
Kenmore Air Harbor Seaplane Base (LKE)
Kenmore Air Harbor Seaplane Base provides another departure choice for flights from Seattle to San Antonio.
📍 ~3 km from Seattle city center (reachable by car)
💸 Flights from ~$753
San Antonio main airports to arrive at
San Antonio International (SAT)
San Antonio International Airport is a convenient arrival option for flights to San Antonio.
📍 ~15 km from San Antonio city center (reachable by car)
💸 Flights from ~$179
Airports nearby San Antonio used as alternative
Austin–Bergstrom International (AUS)
Consider Austin–Bergstrom International for significantly more direct flight options, despite potential heavy traffic on I-35.
📍 ~125 km from San Antonio (reachable by car)
💸 Flights from ~$178
Corpus Christi International (CRP)
Corpus Christi International provides additional options for travelers heading toward the Gulf Coast.
📍 ~200 km from San Antonio (reachable by car)
💸 Flights from ~$343
Laredo International (LRD)
Laredo International offers reliable domestic service within the US with a straightforward drive south.
📍 ~240 km from San Antonio (reachable by car)
💸 Flights from ~$267
Killeen–Fort Hood Regional (GRK)
Killeen–Fort Hood Regional is an alternative for travelers on the north side of San Antonio.
📍 ~145 km from San Antonio (reachable by car)
💸 Flights from ~$459
Victoria Regional (VCT)
Victoria Regional is geographically closer than some other regional options, but has extremely limited commercial service.
📍 ~180 km from San Antonio (reachable by car)
💸 Flights from ~$417
Business & First Class Flight Deals to San Antonio
Discover luxury on the budget with premium cabin class on flights from Seattle to San Antonio.
Elite
Best Elite deals to San Antonio
Exclusive daily First Class, Business Class, and Premium Economy flight deals, refreshed every 24 hours.
From SEA
Elite
Aug 25
San Antonio, United States
89% AI deal score
$1,768
$952
Save $816
From SEA
Elite
Aug 07
San Antonio, United States
89% AI deal score
$1,829
$1,003
Save $826
From SEA
Elite
Sep 21
San Antonio, United States
87% AI deal score
$1,394
$907
Save $487
From SEA
Elite
Sep 12
San Antonio, United States
87% AI deal score
$1,389
$907
Save $482
From SEA
Elite
Jul 13
San Antonio, United States
85% AI deal score
$1,310
$952
Save $358
From SEA
Elite
Oct 03
San Antonio, United States
85% AI deal score
$1,469
$1,003
Save $466
From SEA
Elite
Jul 21
San Antonio, United States
85% AI deal score
$1,676
$1,097
Save $579
From SEA
Elite
Aug 13
San Antonio, United States
84% AI deal score
$1,647
$1,019
Save $628
From SEA
Elite
Aug 25
San Antonio, United States
84% AI deal score
$1,648
$1,029
Save $619
From SEA
Elite
Oct 07
San Antonio, United States
84% AI deal score
$1,745
$1,059
Save $686
From SEA
Elite
Jul 08
San Antonio, United States
83% AI deal score
$1,515
$1,062
Save $453
From SEA
Elite
Jul 23
San Antonio, United States
83% AI deal score
$1,518
$1,064
Save $454
From SEA
Elite
Jul 23
San Antonio, United States
83% AI deal score
$1,538
$1,064
Save $474
From SEA
Elite
Jul 01
San Antonio, United States
83% AI deal score
$1,552
$1,115
Save $437
From SEA
Elite
Aug 17
San Antonio, United States
82% AI deal score
$1,370
$1,107
Save $263
From SEA
Elite
Aug 06
San Antonio, United States
82% AI deal score
$1,379
$1,107
Save $272
From SEA
Elite
Aug 07
San Antonio, United States
82% AI deal score
$1,377
$1,107
Save $270
From SEA
Elite
Jul 24
San Antonio, United States
82% AI deal score
$1,523
$1,115
Save $408
From SEA
Elite
Aug 10
San Antonio, United States
81% AI deal score
$1,370
$1,107
Save $263
From SEA
Elite
Aug 05
San Antonio, United States
81% AI deal score
$1,353
$1,107
Save $246
From SEA
Elite
Sep 11
San Antonio, United States
81% AI deal score
$1,620
$1,115
Save $505
From SEA
Elite
Jul 24
San Antonio, United States
81% AI deal score
$1,518
$1,115
Save $403
From SEA
Elite
Jul 23
San Antonio, United States
81% AI deal score
$1,559
$1,160
Save $399
From SEA
Elite
Aug 15
San Antonio, United States
77% AI deal score
$1,346
$1,107
Save $239
From SEA
Elite
Aug 03
San Antonio, United States
76% AI deal score
$1,289
$1,107
Save $182
From SEA
Elite
Aug 06
San Antonio, United States
76% AI deal score
$1,260
$1,107
Save $153
From SEA
Elite
Jul 29
San Antonio, United States
76% AI deal score
$1,523
$1,165
Save $358
From SEA
Elite
Jul 27
San Antonio, United States
76% AI deal score
$1,540
$1,165
Save $375
From SEA
Elite
Aug 13
San Antonio, United States
75% AI deal score
$1,254
$1,107
Save $147
From SEA
Elite
Jul 29
San Antonio, United States
75% AI deal score
$1,518
$1,210
Save $308
From SEA
Elite
Jul 29
San Antonio, United States
75% AI deal score
$1,531
$1,210
Save $321
From SEA
Elite
Jul 28
San Antonio, United States
75% AI deal score
$1,520
$1,214
Save $306
From SEA
Elite
Jul 25
San Antonio, United States
75% AI deal score
$1,535
$1,214
Save $321
From SEA
Elite
Jul 25
San Antonio, United States
75% AI deal score
$1,526
$1,214
Save $312
From SEA
Elite
Aug 06
San Antonio, United States
74% AI deal score
$1,243
$1,047
Save $196
From SEA
Elite
Aug 14
San Antonio, United States
74% AI deal score
$1,232
$1,047
Save $185
From SEA
Elite
Jul 31
San Antonio, United States
74% AI deal score
$1,208
$1,107
Save $101
From SEA
Elite
Aug 07
San Antonio, United States
73% AI deal score
$1,158
$1,047
Save $111
From SEA
Elite
Aug 07
San Antonio, United States
73% AI deal score
$1,192
$1,047
Save $145
From SEA
Elite
Aug 06
San Antonio, United States
73% AI deal score
$1,167
$1,047
Save $120
From SEA
Elite
Aug 13
San Antonio, United States
73% AI deal score
$1,173
$1,047
Save $126
From SEA
Elite
Aug 11
San Antonio, United States
73% AI deal score
$1,164
$1,047
Save $117
From SEA
Elite
Aug 11
San Antonio, United States
73% AI deal score
$1,173
$1,047
Save $126
From SEA
Elite
Aug 03
San Antonio, United States
73% AI deal score
$1,170
$1,047
Save $123
From SEA
Elite
Aug 12
San Antonio, United States
73% AI deal score
$1,173
$1,047
Save $126
From SEA
Elite
Aug 08
San Antonio, United States
73% AI deal score
$1,167
$1,047
Save $120
From SEA
Elite
Jul 09
San Antonio, United States
73% AI deal score
$1,155
$1,047
Save $108
From SEA
Elite
Aug 25
San Antonio, United States
73% AI deal score
$1,164
$1,047
Save $117
From SEA
Elite
Aug 25
San Antonio, United States
73% AI deal score
$1,199
$1,047
Save $152
From SEA
Elite
Sep 10
San Antonio, United States
73% AI deal score
$1,166
$1,047
Save $119
From SEA
Elite
Aug 03
San Antonio, United States
73% AI deal score
$1,278
$1,102
Save $176
From SEA
Elite
Aug 08
San Antonio, United States
73% AI deal score
$1,227
$1,107
Save $120
From SEA
Elite
Aug 13
San Antonio, United States
73% AI deal score
$1,233
$1,107
Save $126
From SEA
Elite
Aug 11
San Antonio, United States
73% AI deal score
$1,271
$1,107
Save $164
From SEA
Elite
Aug 12
San Antonio, United States
73% AI deal score
$1,271
$1,107
Save $164
From SEA
Elite
Aug 15
San Antonio, United States
73% AI deal score
$1,248
$1,107
Save $141
From SEA
Elite
Aug 07
San Antonio, United States
73% AI deal score
$1,243
$1,107
Save $136
From SEA
Elite
Aug 05
San Antonio, United States
73% AI deal score
$1,177
$1,107
Save $70
From SEA
Elite
Aug 12
San Antonio, United States
73% AI deal score
$1,171
$1,107
Save $64
From SEA
Elite
Jul 17
San Antonio, United States
72% AI deal score
$1,119
$1,047
Save $72
From SEA
Elite
Jul 08
San Antonio, United States
72% AI deal score
$1,131
$1,047
Save $84
From SEA
Elite
Jul 17
San Antonio, United States
72% AI deal score
$1,146
$1,047
Save $99
From SEA
Elite
Jul 24
San Antonio, United States
72% AI deal score
$1,146
$1,047
Save $99
From SEA
Elite
Jul 24
San Antonio, United States
72% AI deal score
$1,119
$1,047
Save $72
From SEA
Elite
Jul 25
San Antonio, United States
72% AI deal score
$1,159
$1,082
Save $77
From SEA
Elite
Jul 25
San Antonio, United States
72% AI deal score
$1,146
$1,082
Save $64
From SEA
Elite
Aug 13
San Antonio, United States
72% AI deal score
$1,197
$1,107
Save $90
From SEA
Elite
Aug 08
San Antonio, United States
72% AI deal score
$1,192
$1,107
Save $85
From SEA
Elite
Aug 03
San Antonio, United States
72% AI deal score
$1,157
$1,107
Save $50
From SEA
Elite
Jul 30
San Antonio, United States
71% AI deal score
$1,067
$1,047
Save $20
From SEA
Elite
Jul 21
San Antonio, United States
71% AI deal score
$1,074
$1,047
Save $27
From SEA
Elite
Jul 17
San Antonio, United States
71% AI deal score
$1,089
$1,047
Save $42
From SEA
Elite
Jul 24
San Antonio, United States
71% AI deal score
$1,089
$1,047
Save $42
From SEA
Elite
Dec 02
San Antonio, United States
71% AI deal score
$1,118
$1,080
Save $38
From SEA
Elite
Jul 08
San Antonio, United States
71% AI deal score
$1,139
$1,081
Save $58
From SEA
Elite
Jul 25
San Antonio, United States
71% AI deal score
$1,119
$1,082
Save $37
From SEA
Elite
Aug 08
San Antonio, United States
71% AI deal score
$1,151
$1,107
Save $44
From SEA
Elite
Aug 07
San Antonio, United States
71% AI deal score
$1,159
$1,107
Save $52
From SEA
Elite
Aug 03
San Antonio, United States
71% AI deal score
$1,153
$1,107
Save $46
From SEA
Elite
Jul 30
San Antonio, United States
71% AI deal score
$1,159
$1,107
Save $52
From SEA
Elite
Aug 07
San Antonio, United States
71% AI deal score
$1,122
$1,107
Save $15
From SEA
Elite
Aug 08
San Antonio, United States
71% AI deal score
$1,119
$1,107
Save $12
From SEA
Elite
Aug 10
San Antonio, United States
71% AI deal score
$1,126
$1,107
Save $19
From SEA
Elite
Aug 03
San Antonio, United States
71% AI deal score
$1,117
$1,107
Save $10
From SEA
Elite
Jul 28
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 09
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 24
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 28
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 21
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 22
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 30
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 27
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 09
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 24
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 23
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 27
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 09
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 21
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 23
San Antonio, United States
70% AI deal score
$1,107
From SEA
Elite
Jul 30
San Antonio, United States
70% AI deal score
$1,107