$162 Cheap Flights from San Francisco (SFO) to Key West (EYW)

View $162 flight on Sun, Jan 11, 2026Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)

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

Prices were available within the past 7 days and start at $162 for one-way flights and $309 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Jan 8 - Tue, Jan 13
SFO
San Francisco
EYW
Key West
$309 Roundtrip, just found
$309
Roundtrip
just found
Select Delta flight, departing Thu, Jan 8 from San Francisco to Key West, returning Tue, Jan 13, priced at $309 just found
American Airlines
Fri, Jan 23 - Mon, Jan 26
SFO
San Francisco
EYW
Key West
$314 Roundtrip, found 1 day ago
$314
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jan 23 from San Francisco to Key West, returning Mon, Jan 26, priced at $314 found 1 day ago
JetBlue Airways
Tue, Feb 3 - Wed, Feb 4
SFO
San Francisco
EYW
Key West
$317 Roundtrip, found 1 day ago
$317
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Tue, Feb 3 from San Francisco to Key West, returning Wed, Feb 4, priced at $317 found 1 day ago
Delta
Mon, Jan 12 - Tue, Jan 13
SFO
San Francisco
EYW
Key West
$323 Roundtrip, just found
$323
Roundtrip
just found
Select Delta flight, departing Mon, Jan 12 from San Francisco to Key West, returning Tue, Jan 13, priced at $323 just found
United
Sat, May 23 - Sat, May 30
SFO
San Francisco
EYW
Key West
$326 Roundtrip, found 6 hours ago
$326
Roundtrip
found 6 hours ago
Select United flight, departing Sat, May 23 from San Francisco to Key West, returning Sat, May 30, priced at $326 found 6 hours ago
Delta
Mon, Dec 8 - Fri, Dec 12
SFO
San Francisco
EYW
Key West
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Dec 8 from San Francisco to Key West, returning Fri, Dec 12, priced at $328 found 2 days ago
American Airlines
Wed, Nov 19 - Thu, Nov 20
SFO
San Francisco
EYW
Key West
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Nov 19 from San Francisco to Key West, returning Thu, Nov 20, priced at $328 found 2 days ago
Delta
Sat, Feb 7 - Thu, Feb 19
SFO
San Francisco
EYW
Key West
$331 Roundtrip, found 2 days ago
$331
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Feb 7 from San Francisco to Key West, returning Thu, Feb 19, priced at $331 found 2 days ago
American Airlines
Tue, Dec 2 - Tue, Dec 9
SFO
San Francisco
EYW
Key West
$333 Roundtrip, found 4 days ago
$333
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Dec 2 from San Francisco to Key West, returning Tue, Dec 9, priced at $333 found 4 days ago
Delta
Sun, Dec 7 - Thu, Dec 18
SFO
San Francisco
EYW
Key West
$339 Roundtrip, found 2 days ago
$339
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Dec 7 from San Francisco to Key West, returning Thu, Dec 18, priced at $339 found 2 days ago

Find the cheapest month to fly from San Francisco (SFO) to Key West (EYW)

November is typically the cheapest month to fly

From $238 - $1,086 per traveler.

Alternative airports near Key West

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Key West Intl. EYW. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $349
EYW
Key West Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $349

Frequently asked questions

How much does a flight from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW) cost?
Get a cheap one-way flight from $162 or cheap return flight from $309 from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)?
The cheapest month to fly from SFO to EYW is January, when demand is low. Off-peak months are often when airlines offer better prices between these airports.
What is the cheapest airline that flies from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SFO to EYW flight.
How many flights per day from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)?
You'll need to catch a flight with a layover when traveling from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from SFO to EYW?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)?
To arrive at Key West Intl. Airport (EYW) without delays, select a flight that takes off from San Francisco Intl. Airport (SFO) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW) last-minute?
Waiting until just before your departure to book a flight from SFO to EYW generally means paying more. While you might find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of snagging a bargain.
Is it cheaper to book a SFO to EYW flight and hotel package?
You'll typically save money by booking a SFO to EYW flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. After choosing your preferred flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from San Francisco Intl. Airport (SFO) to Key West Intl. Airport (EYW)?
If you booked your SFO to EYW flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Key West Intl.
Airlines serving
American Airlines, Delta, JetBlue Airways, United
Roundtrip price
$308
Distance
2544 mi

Book with confidence

San Francisco to Key West Flights

The cheapest times to fly from San Francisco to Key West

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Francisco to Key West are during the month of January. You can find some of the cheapest flights from San Francisco to Key West with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Francisco to Key West

Sunday is one of the best days to book for cheap flights from San Francisco to Key West: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Francisco to Key West

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Francisco to Key West in 2025. You can also book with separate airlines for your outbound and return journeys, from $162 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Francisco to Key West flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Francisco to Key West airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Francisco to Key West Flights

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*Available to One Key members.