SFO - EYW

$127 Find Cheap Flights from San Francisco to Key West

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Key West departing on 3/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Key West

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Key West, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Key West, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$259
Overall average: $432
American Airlines
Sat 1/31Wed 2/4
SFO - EYW • 1 stop
Cheapest one-way
$127
Typical prices: $141-$466
Multiple Airlines
Sat 3/7
SFO - EYW • 2 stops
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 45% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 42% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Key West!
Flight Deals
Booking Insights
Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Key West that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Key West

Sat, Jan 31 - Wed, Feb 4
American Airlines Logo
7:00 am - 6:06 pm
SFO
-
EYW
8h 06m1 stop
American Airlines Logo
5:15 pm - 11:12 pm
EYW
-
SFO
8h 57m1 stop
$259American Airlines
Sat, Jan 31 - Wed, Feb 4
American Airlines Logo
7:00 am - 6:06 pm
SFO
-
EYW
8h 06m1 stop
American Airlines Logo
6:06 am - 4:01 pm
EYW
-
SFO
12h 55m2 stops
$264American Airlines
Sat, Jan 31 - Wed, Feb 4
American Airlines Logo
11:36 pm - 1:03 pm
SFO
-
EYW
10h 27m2 stops
American Airlines Logo
6:06 am - 2:37 pm
EYW
-
SFO
11h 31m2 stops
$270American Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
12:25 am - 11:11 am
SFO
-
EYW
7h 46m1 stop
American Airlines Logo
4:40 pm - 11:10 pm
EYW
-
SFO
9h 30m1 stop
$304American Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
12:25 am - 11:11 am
SFO
-
EYW
7h 46m1 stop
American Airlines Logo
3:56 pm - 12:48 am
EYW
-
SFO
11h 52m2 stops
$309American Airlines
Sat, Feb 21 - Wed, Feb 25
American Airlines Logo
11:30 pm - 1:15 pm
SFO
-
EYW
10h 45m2 stops
American Airlines Logo
1:55 pm - 11:10 pm
EYW
-
SFO
12h 15m2 stops
$315American Airlines
Tue, Feb 24 - Fri, Feb 27
American Airlines Logo
12:30 am - 3:57 pm
SFO
-
EYW
12h 27m2 stops
American Airlines Logo
3:51 pm - 12:48 am
EYW
-
SFO
11h 57m2 stops
$328American Airlines
Tue, Jan 20 - Thu, Jan 29
Delta Logo
8:00 am - 7:40 pm
SFO
-
EYW
8h 40m1 stop
Delta Logo
7:10 am - 12:55 pm
EYW
-
SFO
8h 45m1 stop
$347Delta
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
9:10 am - 11:56 pm
SFO
-
EYW
11h 46m2 stops
American Airlines Logo
1:22 pm - 10:28 pm
EYW
-
SFO
12h 06m1 stop
$352American Airlines
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
9:10 am - 11:56 pm
SFO
-
EYW
11h 46m2 stops
American Airlines Logo
12:00 pm - 8:25 pm
EYW
-
SFO
11h 25m2 stops
$358American Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Key West flights

Get data-powered insights and trends into flights from San Francisco to Key West to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from San Francisco to Key West?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to Key West, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Francisco to Key West is August, where tickets cost $296 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $827 and $711 respectively.

How far in advance should I book a flight from San Francisco to Key West?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to Key West, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Francisco to Key West, you should book around 3 weeks before departure, which saves you about 45% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$127
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from San Francisco to Key West

When to book flights from San Francisco to Key West

Are your dates flexible? Find out the best times to travel from San Francisco to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Key West

  • What is the cheapest flight from San Francisco to Key West?

    In the last 3 days, the lowest price for a flight from San Francisco to Key West was $127 for a one-way ticket and $259 for a round-trip.

  • Do I need a passport to fly between San Francisco and Key West?

    A passport is not required to fly from San Francisco to Key West.

  • Which airports will I be using when flying from San Francisco to Key West?

    When flying out of San Francisco you will be using San Francisco. You will be landing at Key West, also known as Key West.

  • Which aircraft models fly most regularly from San Francisco to Key West?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Key West?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between San Francisco and Key West, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from San Francisco to Key West, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from San Francisco to Key West are Delta and United Airlines. With an average price for the route of $481 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $651 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from San Francisco to Key West?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Key West.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Key West?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Key West from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Key West?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Key West with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and EYW can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Key West?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Key West from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from San Francisco to Key West

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Key West. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Key West? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8035 reviews
7.9Comfort
7.2Food
8.5Crew
7.8Entertainment
8.1Boarding
Airline reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

8.0 ExcellentG, Jan 2026
ATL - FLL
Read more Delta reviews

Comfort Plus seat 11E seemed smaller than prior flights. The movie selection is good. Watched most of the most recent Tron movie. I'll watch the remaining part later as my movie is saved in the Delta Seatback Experience.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

The flight was an hour and a half late departing which was inconvenient

The flight was great. The gate location was way to far away!!!

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

UGH I HAD TO MISS MY FIRST FLIGHT TO TAMPA CAUSE OF THE 10 MINUTE DELAY OF THE ORLANDO TO MIAMI ONE SO THEY HAD ME GET ANOTHER TICKET. I AM NOT HAPPY AT ALL BECAUSE IT MADE ME MISS MY CONNECTING FLIGHT FROM TAMPA TO LONDON AND FORCED ME TO MISS A DAY AT MY ROOM IN THE UK.

Wish they didnt delay off-boarding for 10 minutes so i could connect to my flight from miami to tampa

We experienced gate changes and a long delay. My seat was dirty when I boarded and I had to use wipes to clean it myself. There was an unpleasant and overpowering cleaning product scent on the plane as well that lingered through the flight.

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

Delays to take off and to leave the plane after landing added a lot of time to this flight.

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Everything you need to know for your flight from San Francisco to Key West

Information on your arrival and departure airports