Find Cheap Flights from San Francisco to Key West (SFO - EYW)

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Good to Know

Average Price:
$638
(avg. price over the last 2 weeks)
Good Deal:
$487
or less (round trip)

When to Book Flights from San Francisco 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 $487 or less.
The cheapest flight from San Francisco to Key West was found 56 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 19% 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 Francisco to Key West Flights

How long does a flight from San Francisco to Key West take?
An average nonstop flight takes 8h 29m, covering a distance of 2544 miles.
Which airlines provide the cheapest flights from San Francisco to Key West?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($370), United ($404) and American Airlines ($496).
Do I need a passport to fly between San Francisco and Key West?
No.
What’s the cheapest day of the week to fly San Francisco to Key West?
For San Francisco to Key West, Saturday is the cheapest day to fly on average and Monday is the most expensive. Flying from Key West back to San Francisco, the best deals are generally found on Thursday, with Saturday being the most expensive.

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

Airports
Origin
San Francisco
$370
only
$370
Destination
Key West
$370
only
$370
Sat, Jan 20
SFO
EYW
8h 41m
Tue, Jan 23
EYW
SFO
9h 17m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 29
SFO
EYW
12h 03m
Wed, Jun 6
EYW
SFO
20h 22m
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

FLL
ORD
Excellent 8.0

no aisle seat

ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

IAD
CDG
Good 7.6

The food was particularly poor this flight.

Wed, Jan 3
SFO
EYW
19h 37m
Mon, Jan 8
EYW
SFO
19h 51m
Trip: 6 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
YUL
MIA
Excellent 10.0

First time flyer with American airlines and the service was impeccable

Nothing to dislike

DFW
SCL
Excellent 9.6

The food is very tasty, but AA has not changed the menu in at least one year.

ATL
CLT
Excellent 9.6

The flight was late

JFK
CDG
Mediocre 2.0

Nothing. From the plane to the awful delay and poor service.

Lack of communication. Old plane, no comfort and 6 HOURS DELAYED. Truly disappointed by the airline

CLT
SJU
Mediocre 3.3

Direct flight

Horrible customer service, excessive baggage fees, rude counter staff, no leg room, narrow seats

Tue, May 29
SFO
EYW
8h 41m
Mon, Jun 4
EYW
SFO
10h 27m
Trip: 7 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 7213 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
BOS
DCA
Mediocre 2.0

There was a huge glitch in your ticketing, resulting in me confirming the same ticket 3 times. After calling Jetblue for customer service per your advice, they first suggested to give Jetblue credits for extra tickets. When I insisted that the issue was solely caused by kayak-jetblue ticketing connection issues, they supervisor approved to cancel 2 credit card payments... BUT I have to wait for 2 weeks to see the cancellation on my credit card. Unfair and ridiculous, if you as me.

MCO
PVD
Excellent 10.0

Great flight great experience

Long lines at TSA checkpoint.

MCO
DCA
Excellent 10.0

Left on time and arrived early both ways.

JFK
SYR
Good 7.0

TV didn't work

FLL
LAS
Good 6.3

The flight was delayed by 2 hours

Mon, Jan 8
SFO
EYW
37h 28m
Sat, Jan 13
EYW
SFO
27h 06m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
SFO
EYW
10h 49m
Wed, Jun 6
EYW
SFO
19h 12m
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

SLC
ORD
Good 6.0

Flight attendants seemed completely unwilling to accommodate any requests outside of their "service time".

RSW
EWR
Okay 5.3

Boarding quickly

No PED was available didn’t have anything for entertainment if you weren’t buying it seems every thing available for 3 hour flight and flight was scheduled for 2 hours and 55 minutes No snacks made available came thru once had a small bag of pretzels cup of coffee and never came back

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

FLL
ORD
Excellent 8.0

no aisle seat

Sun, Jun 3
SFO
EYW
9h 06m
Wed, Jun 6
EYW
SFO
19h 12m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
FLL
ORD
Excellent 8.0

no aisle seat

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

RSW
EWR
Okay 5.3

Boarding quickly

No PED was available didn’t have anything for entertainment if you weren’t buying it seems every thing available for 3 hour flight and flight was scheduled for 2 hours and 55 minutes No snacks made available came thru once had a small bag of pretzels cup of coffee and never came back

Wed, Mar 14
SFO
EYW
8h 29m
Mon, Mar 19
EYW
SFO
10h 21m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 28
SFO
EYW
11h 30m
Wed, Jun 6
EYW
SFO
20h 22m
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAD
CDG
Good 7.6

The food was particularly poor this flight.

RSW
EWR
Okay 5.3

Boarding quickly

No PED was available didn’t have anything for entertainment if you weren’t buying it seems every thing available for 3 hour flight and flight was scheduled for 2 hours and 55 minutes No snacks made available came thru once had a small bag of pretzels cup of coffee and never came back

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

MIA
ORD
Excellent 9.0

That it got me to Paris safe

No outlets to charge your phone, and the tv played the same movie over and over. The meals were also cheap. Didn't like any of them. Should have flown southwest or delta.

FLL
ORD
Excellent 8.0

no aisle seat

Mon, Jan 1
SFO
EYW
14h 29m
Mon, Jan 8
EYW
SFO
19h 51m
Trip: 8 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
YUL
MIA
Excellent 10.0

First time flyer with American airlines and the service was impeccable

Nothing to dislike

BNA
DFW
Good 7.3

Everything else

ATL
CLT
Excellent 9.6

The flight was late

SFO
DFW
Excellent 10.0

On time. Comfortable seat. Courteous crew. Easy transfer.

LAX
LHR
Excellent 9.2

Easy and efficient boarding for a busy flight. Efficient, attentive and intuitive cabin crew. Good in-flight entertainment and facilities.

The aircraft was extremely cold throughout the duration of the flight. Of all of the long haul airlines I've flown with, I find that American Airlines offers the least leg room.

Fri, Jan 19
SFO
EYW
12h 34m
Mon, Jan 22
EYW
SFO
30h 11m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, May 29
SFO
EYW
12h 03m
Tue, Jun 5
EYW
SFO
12h 52m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
RSW
EWR
Okay 5.3

Boarding quickly

No PED was available didn’t have anything for entertainment if you weren’t buying it seems every thing available for 3 hour flight and flight was scheduled for 2 hours and 55 minutes No snacks made available came thru once had a small bag of pretzels cup of coffee and never came back

MIA
ORD
Excellent 9.0

That it got me to Paris safe

No outlets to charge your phone, and the tv played the same movie over and over. The meals were also cheap. Didn't like any of them. Should have flown southwest or delta.

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

FLL
ORD
Excellent 8.0

no aisle seat

Tue, Jan 2
SFO
EYW
20h 27m
Mon, Jan 8
EYW
SFO
19h 51m
Trip: 7 days
7.2GoodShow reviews
Overall 7.2 Good
Based on 26055 reviews
Overall
7.3
Boarding
7.5
Comfort
7.1
Crew
7.8
Entertainment
6.7
Food
6.6
JFK
CDG
Mediocre 2.0

Nothing. From the plane to the awful delay and poor service.

Lack of communication. Old plane, no comfort and 6 HOURS DELAYED. Truly disappointed by the airline

JFK
MXP
Mediocre 2.6

Plane was old and dirty, seat pocket had junk in it. Seat was broken and couldn’t stay up. In flight movies were from few years back with a center tv and no head rest screen. Crew on overseas flights tend to be older in age and less tolerant..much better on continental on the same route.

CLT
SJU
Mediocre 3.3

Direct flight

Horrible customer service, excessive baggage fees, rude counter staff, no leg room, narrow seats

LAX
LHR
Excellent 9.2

Easy and efficient boarding for a busy flight. Efficient, attentive and intuitive cabin crew. Good in-flight entertainment and facilities.

The aircraft was extremely cold throughout the duration of the flight. Of all of the long haul airlines I've flown with, I find that American Airlines offers the least leg room.

DFW
SCL
Excellent 9.6

The food is very tasty, but AA has not changed the menu in at least one year.

Tue, May 8
SFO
EYW
8h 41m
Tue, May 15
EYW
SFO
10h 27m
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
SFO
EYW
9h 56m
Sun, Jun 3
EYW
SFO
10h 46m
Trip: 2 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 7213 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
JFK
SYR
Good 7.0

TV didn't work

FLL
KIN
Okay 4.0

The flight attendants were pleasant and courteous

The boarding was delayed and the boarding area was crowded, Boarding was delayed due to high number of wheelchair passengers. I was seated in an Even More Space seat, yet was placed beside a woman who was obviously suffering from some degenerative condition, and was slumped over towards my seat. The result was that I was uncomfortable the whole way back to Kingston.

JFK
ABQ
Good 7.3

I know it's hard to make a 14+ hour flight in economy enjoyable, but more varied food selections and better/more current movies to choose from would have helped.

PHX
JFK
Good 7.6

The staff is friendlier than most airlines. More room than American.

Screaming child entire flight. Not sure there is a solution. But, for a redeye, trying to get sleep before a days work, not great.

BOS
DCA
Mediocre 2.0

There was a huge glitch in your ticketing, resulting in me confirming the same ticket 3 times. After calling Jetblue for customer service per your advice, they first suggested to give Jetblue credits for extra tickets. When I insisted that the issue was solely caused by kayak-jetblue ticketing connection issues, they supervisor approved to cancel 2 credit card payments... BUT I have to wait for 2 weeks to see the cancellation on my credit card. Unfair and ridiculous, if you as me.

Wed, May 30
SFO
EYW
8h 53m
Wed, Jun 6
EYW
SFO
20h 22m
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MIA
ORD
Excellent 9.0

That it got me to Paris safe

No outlets to charge your phone, and the tv played the same movie over and over. The meals were also cheap. Didn't like any of them. Should have flown southwest or delta.

ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

MCO
EWR
Excellent 10.0

Excellent support from everyone as all were very helpful with assisting my need for wheel chair.

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

FLL
ORD
Excellent 8.0

no aisle seat

Sat, Jan 6
SFO
EYW
9h 16m
Wed, Jan 10
EYW
SFO
14h 52m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
SFO
EYW
11h 38m
Tue, Jun 5
EYW
SFO
14h 30m
Trip: 4 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MCO
EWR
Excellent 10.0

Excellent support from everyone as all were very helpful with assisting my need for wheel chair.

FLL
ORD
Excellent 8.0

no aisle seat

SLC
ORD
Good 6.0

Flight attendants seemed completely unwilling to accommodate any requests outside of their "service time".

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

IAD
CDG
Good 7.6

The food was particularly poor this flight.

Fri, Jan 5
SFO
EYW
10h 33m
Sat, Jan 13
EYW
SFO
11h 44m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Mon, May 28
SFO
EYW
8h 41m
Sun, Jun 3
EYW
SFO
11h 41m
Trip: 7 days
8.2ExcellentShow reviews
Overall 8.2 Excellent
Based on 7213 reviews
Overall
8.2
Boarding
8.3
Comfort
8.3
Crew
8.6
Entertainment
8.0
Food
7.8
MCO
DCA
Excellent 10.0

Left on time and arrived early both ways.

FLL
RDU
Excellent 8.3

The departure and arrival times were accurate. Actually we arrived about 15 minutes early.

There was only one individual checking people boarding. Two individuals at the boarding gate would have been even more efficient.

MCO
PVD
Excellent 10.0

Great flight great experience

Long lines at TSA checkpoint.

SEA
JFK
Excellent 8.0

no power outlets

JFK
ABQ
Good 7.3

I know it's hard to make a 14+ hour flight in economy enjoyable, but more varied food selections and better/more current movies to choose from would have helped.

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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.