SFO - EYW

$140 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 8/12. 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

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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Flights 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

Thu, Aug 14 - Mon, Aug 18
American Airlines Logo
8:00 am - 7:07 pmSFO-EYW
8h 07m1 stop
American Airlines Logo
11:26 am - 7:00 pmEYW-SFO
10h 34m1 stop
$259American Airlines
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Thu, Aug 14 - Mon, Aug 18
American Airlines Logo
8:00 am - 7:07 pmSFO-EYW
8h 07m1 stop
American Airlines Logo
11:26 am - 8:51 pmEYW-SFO
12h 25m2 stops
$264American Airlines
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Mon, Aug 4 - Wed, Aug 6
American Airlines Logo
11:50 pm - 10:48 amSFO-EYW
7h 58m1 stop
American Airlines Logo
1:52 pm - 7:00 pmEYW-SFO
8h 08m1 stop
$279American Airlines
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Mon, Aug 4 - Wed, Aug 6
American Airlines Logo
11:17 pm - 12:00 pmSFO-EYW
9h 43m1 stop
American Airlines Logo
2:31 pm - 8:51 pmEYW-SFO
9h 20m2 stops
$284American Airlines
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Sun, Jul 27 - Sun, Aug 3
United Airlines Logo
10:45 pm - 1:12 pmSFO-EYW
11h 27m1 stop
United Airlines Logo
1:42 pm - 9:41 amEYW-SFO
22h 59m3 stops
$647United Airlines
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Thu, Aug 14 - Sun, Aug 17
United Airlines Logo
4:25 pm - 1:11 pmSFO-EYW
17h 46m2 stops
United Airlines Logo
1:42 pm - 9:41 amEYW-SFO
22h 59m3 stops
$696United Airlines
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Sun, Jul 27 - Sun, Aug 3
United Airlines Logo
10:58 pm - 1:12 pmSFO-EYW
35h 14m2 stops
United Airlines Logo
1:42 pm - 9:41 amEYW-SFO
22h 59m3 stops
$757United Airlines
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Mon, Jun 30 - Sat, Jul 5
Delta Logo
6:15 am - 5:34 pmSFO-EYW
8h 19m1 stop
Delta Logo
7:50 am - 2:13 pmEYW-SFO
9h 23m1 stop
$883Delta
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Tue, Aug 12 - Sun, Aug 17
Delta Logo
12:35 am - 5:27 pmSFO-EYW
13h 52m2 stops
Delta Logo
7:00 am - 11:45 amEYW-SFO
7h 45m1 stop
$1,202Delta
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Wed, Aug 13 - Sun, Aug 17
Delta Logo
12:35 am - 5:27 pmSFO-EYW
13h 52m2 stops
Delta Logo
7:00 am - 11:45 amEYW-SFO
7h 45m1 stop
$1,352Delta
Find Deal
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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 $301 (return) on average. On the other hand, the most expensive months are June and November, where the average cost of round-trip tickets is $713 and $644 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. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Good to know

Low seasonJune
High seasonApril
Cheapest flight$140
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly with an average 11% increase in price.
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 $140 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?

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between San Francisco and Key West, with SkyTeam 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 $496 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $546 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.
8.0
DeltaOverall score based on 7965 reviews
7.9Comfort
7.9Entertainment
8.2Boarding
8.5Crew
7.3Food
Airline reviews

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

8.0 ExcellentMathew, Jun 2025SAN - JFK
Read more Delta reviews

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

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.

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

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.

New boarding doesn't make sense. Filling front first is slow.

Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

While the staff was pleasant and helpful, the following observations are for your awareness. There was some delay on the tarmac on take off and landing. The paid lunch/food offerings were limited. Entertainment was only available on WiFi at a cost.

get E+, a must for 5 hours flight if you are tall

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

During service there was a garbage/beverage spill near our seats that never was cleaned up. On a relatively short flight when we’re fortunate enough to actually have in flight movies available, the flight attendants pitching the AADVANTAGE credit card shouldn’t talk for the last 10 minutes of the flight so that we miss the end of the movie.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

British Airways staff are very polite and willing to help.

Would have thought that they would gas up plane before everyone got on board

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Standard. No different than a discount carrier on a short trip.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

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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