Find Cheap Flights from San Antonio to Key West (SAT - EYW)

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Good to Know

Average Price:
$582
(avg. price over the last 2 weeks)
Good Deal:
$447
or less (round trip)

When to Book Flights from San Antonio to Key West

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $446 or less.
The cheapest flight from San Antonio to Key West was found 90 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 10% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking San Antonio to Key West Flights

How long does a flight from San Antonio to Key West take?
An average nonstop flight takes 5h 17m, covering a distance of 1083 miles.
Which airlines provide the cheapest flights from San Antonio to Key West?
In the past 3 days, the cheapest round-trip tickets were found on United ($315), Delta ($336) and Multiple Airlines ($393).
Do I need a passport to fly between San Antonio and Key West?
No.

Book cheap flights from San Antonio to Key West (round-trip)

Airports
Origin
San Antonio
$315
only
$315
Destination
Key West
$315
only
$315
Tue, Mar 27
SAT
EYW
8h 39m
Tue, Apr 3
EYW
SAT
7h 16m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
LGA
IAH
Good 6.3

I was told that I had to gate check my bags which had all of the necessities to travel with my child ( snacks, books, toys) due to it being a full flight. When I boarded, there were still several overhead storage bins completely empty. Very annoying. The crew could have physicallt assessed and checked before assuming due to flight capacity.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

DEN
PSP
Okay 4.3

Paid for Econoplus seat but was assigned a seat in the row before the emergency exit. Seat uncomfortable didn’t recline had to go through refund process

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

Tue, Jun 12
SAT
EYW
6h 02m
Wed, Jun 20
EYW
SAT
6h 49m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

Tue, Mar 27
SAT
EYW
7h 32m
Tue, Apr 3
EYW
SAT
7h 16m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Apr 6
SAT
EYW
13h 00m
Mon, Apr 9
EYW
SAT
11h 27m
Trip: 4 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 28211 reviews
Overall
7.4
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.7
JFK
EZE
Excellent 9.0

Beautiful design n great storage

Hard to get out of seat unless in fully upright biz class position

CLT
ILM
Mediocre 3.0

Three hours delay. I paid for a upgrade to first class. But because of the flight change i didn't get to keep my upgrade and I had to beg for a refund. I have had two trips in the past 5 days and all flights have been anywhere from 1 to 3 hours late. Worst experience with AA I have had in a long time.

LHR
ORD
Mediocre 2.0

Nothing really. I will never book from Kayak ever

Everything

SJU
MIA
Excellent 9.3

New onboard entertainment

DCA
CLT
Excellent 8.6

My wife is hypoglycemic and requires food. The flight was so early that none of the terminal restaraunts were open, nor did the plain have food for any passengers accept first class. I've purchased a box on other flights, but this one did not provide an option for a box lunch or breakfast.

Thu, Aug 9
SAT
EYW
11h 04m
Mon, Aug 13
EYW
SAT
7h 05m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

LAX
LHR
Excellent 10.0

United Airlines team and the plaine were brilliant.

DEN
LAX
Okay 5.0

Great crew and process

For the fare, the leg room is not enough for average 6'0 person to be comfortable for longer than an hour.

GRR
IAH
Good 6.0

Pay for food, cold on plane entire time, everyone bundled up in blankets, jackets but staff friendly

Tue, Jun 19
SAT
EYW
7h 17m
Wed, Jun 27
EYW
SAT
5h 55m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
DTW
Excellent 10.0

Pls see above

Wed, Jun 20
SAT
EYW
6h 55m
Wed, Jun 27
EYW
SAT
5h 55m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
DTW
Excellent 10.0

Pls see above

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

Sat, Aug 25
SAT
EYW
9h 23m
Wed, Aug 29
EYW
SAT
7h 48m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 54591 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.4
DFW
ORD
Excellent 10.0

I LIKE THE SERVICE ON BORD OF THE PLANE

NOTHING

FSD
DEN
Mediocre 2.0

Friendly crew.

Stuck in Denver because our flight was delayed so we missed our connection to Houston. Couldn’t get a hotel voucher because they are claiming a weather delay (which there was none).

DEN
IAH
Mediocre 2.0

Nothing

Never made it. Stuck in Denver.

SJO
IAH
Mediocre 3.3

The check-in staff were very friendly and helpful.

I already knew I was going to pay $200 to ship my boards back home (I wonder if golf clubs which are roughly the same size cost as much,) but when pre-purchasing through the app for an "oversized" bag you have to put a "one" in the checked bag and a "one" in the oversized bag even though they're the same bag, but then they charge you for two, and when you tell the check-in person that you only have one bag of course they can't issue a refund. No, they tell you that you get to call customer service when you return home.

IAD
GVA
Excellent 10.0

Best flight I have ever experienced!

Nothing

Tue, Jun 26
SAT
EYW
5h 33m
Wed, Jul 4
EYW
SAT
5h 47m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

Wed, Mar 7
SAT
EYW
8h 45m
Wed, Mar 14
EYW
SAT
6h 21m
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jul 4
SAT
EYW
5h 17m
Wed, Jul 11
EYW
SAT
5h 20m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

Tue, Jun 19
SAT
EYW
7h 17m
Tue, Jun 26
EYW
SAT
5h 20m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

ATL
DTW
Excellent 10.0

Pls see above

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

Mon, Mar 5
SAT
EYW
13h 10m
Wed, Mar 14
EYW
SAT
7h 37m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 20
SAT
EYW
6h 55m
Tue, Jun 26
EYW
SAT
5h 20m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Mon, Feb 19
SAT
EYW
16h 06m
Thu, Feb 22
EYW
SAT
17h 24m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 5
SAT
EYW
7h 21m
Mon, Jun 11
EYW
SAT
5h 55m
Trip: 7 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
DTW
Excellent 10.0

Pls see above

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

Wed, Mar 7
SAT
EYW
8h 45m
Tue, Mar 20
EYW
SAT
17h 02m
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Jun 11
SAT
EYW
5h 25m
Tue, Jun 19
EYW
SAT
5h 20m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

Mon, Feb 19
SAT
EYW
16h 06m
Fri, Feb 23
EYW
SAT
16h 42m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Jun 20
SAT
EYW
6h 55m
Thu, Jun 28
EYW
SAT
5h 20m
Trip: 9 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

Show more results

San Antonio to Key West Flight Information

Flights Arrive in Key West
Flights Depart from San Antonio
Flight Price $315
Distance 1083 miles
Airlines United, Delta, American Airlines
*
Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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please send us an and someone from our team will get back to you promptly.

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.