SFO - EYW

$157 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 11/19. 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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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

Fri, Dec 5 - Sat, Dec 13
Delta Logo
7:15 am - 8:06 pmSFO-EYW
9h 51m1 stop
Delta Logo
3:02 pm - 9:16 pmEYW-SFO
9h 14m1 stop
$309Delta
Find Deal
Thu, Nov 13 - Wed, Nov 19
American Airlines Logo
7:10 am - 9:47 pmSFO-EYW
11h 37m2 stops
American Airlines Logo
1:33 pm - 9:00 pmEYW-SFO
10h 27m1 stop
$314American Airlines
Find Deal
Thu, Nov 13 - Wed, Nov 19
American Airlines Logo
7:10 am - 9:47 pmSFO-EYW
11h 37m2 stops
American Airlines Logo
12:00 pm - 8:28 pmEYW-SFO
11h 28m2 stops
$319American Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Delta Logo
10:40 am - 11:43 amSFO-EYW
22h 03m2 stops
Delta Logo
6:10 pm - 12:20 amEYW-SFO
9h 10m1 stop
$321Delta
Find Deal
Sun, Dec 7 - Wed, Dec 10
Delta Logo
7:15 am - 8:06 pmSFO-EYW
9h 51m1 stop
Delta Logo
3:02 pm - 8:59 pmEYW-SFO
8h 57m1 stop
$323Delta
Find Deal
Sun, Dec 7 - Wed, Dec 10
Delta Logo
6:00 am - 5:15 pmSFO-EYW
8h 15m1 stop
Delta Logo
6:10 pm - 7:30 amEYW-SFO
16h 20m2 stops
$328Delta
Find Deal
Mon, Jan 12 - Fri, Jan 16
American Airlines Logo
12:17 am - 1:03 pmSFO-EYW
9h 46m2 stops
American Airlines Logo
6:06 am - 2:36 pmEYW-SFO
11h 30m2 stops
$333American Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
3:35 pm - 11:43 amSFO-EYW
17h 08m2 stops
Delta Logo
6:10 pm - 7:30 amEYW-SFO
16h 20m2 stops
$334Delta
Find Deal
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
11:55 pm - 1:15 pmSFO-EYW
10h 20m1 stop
United Airlines Logo
3:56 pm - 11:11 pmEYW-SFO
10h 15m1 stop
$409United Airlines
Find Deal
Sat, Feb 28 - Fri, Mar 6
United Airlines Logo
9:30 pm - 1:15 pmSFO-EYW
12h 45m1 stop
United Airlines Logo
3:48 pm - 11:54 pmEYW-SFO
11h 06m1 stop
$439United Airlines
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $309 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 34% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 46% price drop
April
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$309
Overall average: $560
Delta
Fri 12/5Sat 12/13
SFO - EYW • 1 stop
Cheapest one-way
$157
Typical prices: $189-$346
Multiple Airlines
Wed 11/19
SFO - EYW • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Key West!
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’s the cheapest day of the week to fly from San Francisco to Key West?

The average price of all round-trip flights from San Francisco to Key West clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Key West on a Tuesday and more expensive on a Thursday. On your return trip to San Francisco, you should consider flying back on a Saturday, and avoid Sundays for better deals.

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 $264 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $669 and $640 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 2 weeks before departure, which saves you about 34% 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$157
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly and prices are also 10% 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 $157 for a one-way ticket and $309 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 $425 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 $617 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 7981 reviews
8.5Crew
7.9Comfort
8.2Boarding
7.3Food
7.9Entertainment
Airline reviews

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

8.0 ExcellentDan, Oct 2025SLC - MCO
Read more Delta reviews

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!!!

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.

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

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

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Crew was friendly Love the entertainment in the seat head rest.

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

We were in business class. the angled seats in that class do not have a real window view & the placement of the controls are bad. But we knew that. But the food options were mediocre. The taste was fine, but the size was for a child. It’s just really feels like United is skimping on everything. Even when we were in the Polaris lounge they did not have diet sodas. They said they were out no Coke zero no Diet Coke, etc. I do not think the portion of nuts they serve on the plane could get any smaller. Really a minimal service and offer for what you’re paying for in business.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

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.

Very crowded flight but what can you expect these days?? Crew was accommodating.

We didn't take off until an hour after we boarded.

Wish they had the seat-back video screens for watching movies or playing games.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

Very good but wish they had the seat-back video screens for movies & games

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

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

Information on your arrival and departure airports

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