SFO - EYW

$177 Find Cheap Flights from San Francisco to Key West - Compare and Save

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 8/24. 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

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Everything you should know

Cheapest round-trip
$330
Typical prices: $290-$554
American Airlines
Mon 8/17Sat 8/22
SFO - EYW • 1 stop
Cheapest one-way
$177
Multiple Airlines
Mon 8/24
SFO - EYW • 2 stops
Top airlines
Cheapest • from $330 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between San Francisco and Key West. You'll need at least 1 connection.
Insights
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Top layover airports
Cheapest • Avg $460 (round-trip)
Shortest trip • 7h 23m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 42% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
Good to know
+1
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Good to know
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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

Mon, Aug 17 - Sat, Aug 22
American Airlines Logo
7:30 am - 7:39 pm
SFO
-
EYW
9h 09m
1 stop
American Airlines Logo
7:10 pm - 12:54 am
EYW
-
SFO
8h 44m
1 stop
$330American Airlines
Fri, Aug 28 - Sun, Aug 30
American Airlines Logo
9:35 pm - 9:44 am
SFO
-
EYW
9h 09m
1 stop
American Airlines Logo
8:09 pm - 12:54 am
EYW
-
SFO
7h 45m
1 stop
$369American Airlines
Tue, Jul 28 - Tue, Aug 4
American Airlines Logo
7:20 am - 7:06 pm
SFO
-
EYW
8h 46m
1 stop
American Airlines Logo
2:21 pm - 9:10 pm
EYW
-
SFO
9h 49m
1 stop
$412American Airlines
Mon, Aug 17 - Sat, Aug 22
American Airlines Logo
5:05 am - 4:18 pm
SFO
-
EYW
8h 13m
1 stop
American Airlines Logo
10:15 am - 7:27 pm
EYW
-
SFO
12h 12m
2 stops
$417American Airlines
Sat, Jul 11 - Thu, Jul 16
American Airlines Logo
11:49 pm - 12:14 pm
SFO
-
EYW
9h 25m
1 stop
American Airlines Logo
4:41 pm - 10:48 pm
EYW
-
SFO
9h 07m
1 stop
$420American Airlines
Tue, Jul 28 - Tue, Aug 4
American Airlines Logo
11:49 pm - 12:14 pm
SFO
-
EYW
9h 25m
1 stop
American Airlines Logo
11:28 am - 7:28 pm
EYW
-
SFO
11h 00m
2 stops
$446American Airlines
Sat, Jul 11 - Thu, Jul 16
American Airlines Logo
8:11 pm - 10:55 am
SFO
-
EYW
11h 44m
2 stops
American Airlines Logo
4:41 pm - 10:48 pm
EYW
-
SFO
9h 07m
1 stop
$457American Airlines
Thu, Jul 30 - Mon, Aug 3
Multiple Airlines Logo
12:47 pm - 11:07 am
SFO
-
EYW
19h 20m
1 stop
Multiple Airlines Logo
4:41 pm - 10:30 am
EYW
-
SFO
20h 49m
2 stops
$474Multiple Airlines
Thu, Jul 23 - Tue, Jul 28
American Airlines Logo
5:00 am - 4:11 pm
SFO
-
EYW
8h 11m
1 stop
American Airlines Logo
11:28 am - 7:28 pm
EYW
-
SFO
11h 00m
2 stops
$492American Airlines
Tue, Jul 28 - Tue, Aug 4
American Airlines Logo
5:29 am - 6:48 pm
SFO
-
EYW
10h 19m
2 stops
American Airlines Logo
11:28 am - 7:28 pm
EYW
-
SFO
11h 00m
2 stops
$494American 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.

How much is a round-trip flight from San Francisco to Key West?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Francisco to Key West departing in August.

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 January, where tickets cost $405 (return) on average. On the other hand, the most expensive months are December and November, where the average cost of round-trip tickets is $855 and $776 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 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJune
Cheapest flight$177
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 14% 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 5 days, the lowest price for a flight from San Francisco to Key West was $177 for a one-way ticket and $330 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 $532 and an overall rating of 7.8, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $625 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.
7.8
DeltaOverall score based on 8453 reviews
7.8Comfort
7.8Entertainment
8.5Crew
8.1Boarding
7.2Food
Airline reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

2.0 MediocreTravis, Jun 2026
SFO - LAX
Read more Delta reviews

Flight delayed four separate times. I’m now one hour hours late to landing.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

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

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Lost one piece of luggage even though I checked in 2.5 hours before the flight

Horrifying Almost 2 million miles. Bring your own food and drink. One coffee or drink every three hours. Have to order meals on app more than 24 hours ahead Tiny and dirty bathrooms

My service dog and I were asked to deplane just before they closed the door - clearly very last minute they couldn’t find the documentation that I have filled out many many times before that is for flying service animals. I purposely purchase 3seats (a whole row) since he is large and not all passengers want to sit next to a dog on a cross country flight. The plane departed with my husband on it!!! They made me fill out a hard copy of the same form and had to reschedule me on a later flight where they could find 3 seats together!! I’ve done this so many times before - clearly the error was on their part in a technology glitch - but really people - do better!! Very traumatic - and my husband had to wait for us when he landed ….so bad. Poor pup was confused and tired.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

It was perfect! I've never flown with United before, but I definitely will in the future

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Flight was delayed multiple times without giving any particular reason and the only thing that was communicated was that 'Aircraft is getting ready'. I was stuck at SFO airport for 15 hours and finally took Southwest Airlines flight back home to Dallas.

I was not clear if food was offered or not.

Agency very bad had to cancelled my booking too many changes in the flight changed my flight to 1 week

Take-off delayed an hour because of a missing flight officer, so,arrived in Charlotte lates causing many passengers to miss connections. Otherwise a very good flight, safe and comfortable, with an excellent professional crew.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Not good. One of my luggage is missing. And until now they can’t find it

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.

It was the worst experience ever. Cabin temperature cold, for which they did not have any blankets upon my asking. We paid $125 extra for each passenger to get extra space sits; the sits were ridiculously small, tight, and uncomfortable! The flight attendant dropped ice on me and my sister! All in all, American Airlines deserves below zero!

We sat on the plane for 1 hour because the airline was short handed could not be unloading.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

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

Information on your arrival and departure airports