Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Key West from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Key West departing on 1/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
6:00 am - 5:11 pm
SFO
-
EYW
8h 11m1 stop
Delta Logo
12:20 pm - 7:49 pm
EYW
-
SFO
10h 29m1 stop
$258Delta
Tue, Jan 20 - Thu, Jan 29
Delta Logo
8:00 am - 7:40 pm
SFO
-
EYW
8h 40m1 stop
Delta Logo
12:20 pm - 5:43 pm
EYW
-
SFO
8h 23m1 stop
$259Delta
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
7:00 am - 9:47 pm
SFO
-
EYW
11h 47m2 stops
American Airlines Logo
4:37 pm - 11:36 pm
EYW
-
SFO
9h 59m1 stop
$263American Airlines
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
9:10 am - 11:56 pm
SFO
-
EYW
11h 46m2 stops
American Airlines Logo
2:43 pm - 9:37 pm
EYW
-
SFO
9h 54m1 stop
$264American Airlines
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
9:00 am - 9:47 pm
SFO
-
EYW
9h 47m1 stop
American Airlines Logo
1:22 pm - 10:25 pm
EYW
-
SFO
12h 03m1 stop
$267American Airlines
Wed, Jan 7 - Wed, Jan 14
American Airlines Logo
6:00 am - 7:10 pm
SFO
-
EYW
10h 10m2 stops
American Airlines Logo
6:06 am - 1:46 pm
EYW
-
SFO
10h 40m2 stops
$268American Airlines
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
7:00 am - 9:47 pm
SFO
-
EYW
11h 47m2 stops
American Airlines Logo
6:06 am - 1:46 pm
EYW
-
SFO
10h 40m2 stops
$269American Airlines
Tue, Jan 20 - Thu, Jan 29
American Airlines Logo
7:00 am - 9:47 pm
SFO
-
EYW
11h 47m2 stops
American Airlines Logo
1:22 pm - 8:25 pm
EYW
-
SFO
10h 03m1 stop
$272American Airlines
Wed, Jan 7 - Wed, Jan 14
American Airlines Logo
8:00 am - 11:56 pm
SFO
-
EYW
12h 56m2 stops
American Airlines Logo
6:06 am - 3:05 pm
EYW
-
SFO
11h 59m2 stops
$278American Airlines
Wed, Jan 7 - Wed, Jan 14
United Airlines Logo
11:55 pm - 1:15 pm
SFO
-
EYW
10h 20m1 stop
United Airlines Logo
4:34 pm - 11:59 pm
EYW
-
SFO
10h 25m1 stop
$309United Airlines
Sun, Feb 22 - Sat, Feb 28

Delta flights from San Francisco to Key West

Our best Delta deals on San Francisco to Key West flight tickets
Delta
Jan 20
SFO6:00 amSan Francisco
8h 11m
1 stop
EYW5:11 pmKey West
Jan 29
EYW12:20 pmKey West
10h 29m
1 stop
SFO7:49 pmSan Francisco
$258
Find similar
Delta
Jan 20
SFO8:00 amSan Francisco
8h 40m
1 stop
EYW7:40 pmKey West
Jan 29
EYW12:20 pmKey West
8h 23m
1 stop
SFO5:43 pmSan Francisco
$259
Find similar
Delta
Jan 16
SFO6:55 pmSan Francisco
19h 24m
2 stops
EYW5:19 pmKey West
Jan 24
EYW2:45 pmKey West
8h 40m
1 stop
SFO8:25 pmSan Francisco
$575
Find similar

American Airlines flights from San Francisco to Key West

Our best American Airlines deals on San Francisco to Key West flight tickets
American Airlines
Jan 20
SFO7:00 amSan Francisco
11h 47m
2 stops
EYW9:47 pmKey West
Jan 29
EYW4:37 pmKey West
9h 59m
1 stop
SFO11:36 pmSan Francisco
$263
Find similar
American Airlines
Jan 20
SFO9:10 amSan Francisco
11h 46m
2 stops
EYW11:56 pmKey West
Jan 29
EYW2:43 pmKey West
9h 54m
1 stop
SFO9:37 pmSan Francisco
$264
Find similar
American Airlines
Jan 7
SFO9:00 amSan Francisco
9h 47m
1 stop
EYW9:47 pmKey West
Jan 14
EYW1:22 pmKey West
12h 03m
1 stop
SFO10:25 pmSan Francisco
$267
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Key West that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 10, 2025.
Use the filters below to find and compare flights from San Francisco to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

6:00 am-5:11 pm

1 stop8h 11m

Key West

Thu 1/29

12:20 pm-7:49 pm

1 stop10h 29m

$258

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

8:00 am-7:40 pm

1 stop8h 40m

Key West

Thu 1/29

12:20 pm-5:43 pm

1 stop8h 23m

$259

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

7:00 am-9:47 pm

2 stops11h 47m

Key West

Thu 1/29

4:37 pm-11:36 pm

1 stop9h 59m

$263

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

9:10 am-11:56 pm

2 stops11h 46m

Key West

Thu 1/29

2:43 pm-9:37 pm

1 stop9h 54m

$264

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 1/7

9:00 am-9:47 pm

1 stop9h 47m

Key West

Wed 1/14

1:22 pm-10:25 pm

1 stop12h 03m

$267

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

6:00 am-7:10 pm

2 stops10h 10m

Key West

Thu 1/29

6:06 am-1:46 pm

2 stops10h 40m

$268

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 1/20

7:00 am-9:47 pm

2 stops11h 47m

Key West

Thu 1/29

6:06 am-1:46 pm

2 stops10h 40m

$269

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 1/7

7:00 am-9:47 pm

2 stops11h 47m

Key West

Wed 1/14

1:22 pm-8:25 pm

1 stop10h 03m

$272

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 1/7

8:00 am-11:56 pm

2 stops12h 56m

Key West

Wed 1/14

6:06 am-3:05 pm

2 stops11h 59m

$278

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Sun 2/22

11:55 pm-1:15 pm

1 stop10h 20m

Key West

Sat 2/28

4:34 pm-11:59 pm

1 stop10h 25m

$309

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Key West from

How to get the cheapest flight ticket from San Francisco to Key West

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from San Francisco to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $264. If you are unable to visit Key West during the month of August, then departing from San Francisco during the month July is also very affordable. Most momondo users find prices during this month for around $383.

What is the cheapest day to depart on your flight to Key West?

On average, the least expensive day to fly to Key West from San Francisco is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $391. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Key West for around $642.

What is the cheapest time of day to depart on your flight to Key West?

According to our data, the cheapest time of day to fly to Key West is in the morning. momondo users have found flights departing from San Francisco to Key West in the morning for as low as $488. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly in the evening, with an average ticket price of $561. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to Key West from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $482 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from San Francisco for as low as $227 on momondo.

How have San Francisco to Key West flight prices changed over time?

As of December 2025, prices for San Francisco to Key West flights are approximately 59% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Key West

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Key West according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Key West (SFO to EYW) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Key West

Fastest flight time

7h 50m

Direct flights

None
The fastest flight from San Francisco to Key West takes 7h 50m
There are no direct flights from San Francisco to Key West. There are no popular flight routes from San Francisco to Key West.
Search flight deals

  • How far is San Francisco to Key West by plane?

    Key West is 2543.6 mi away from San Francisco. Flights usually cover this in 7h 50m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from San Francisco Airport to Key West Airport?

    Prices for flights from San Francisco Airport to Key West Airport are updated daily.

  • How many operators does momondo search for flights from San Francisco Airport to Key West Airport?

  • How old do you have to be to fly from San Francisco Airport to Key West Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Key West Airport.

  • What documentation or ID do you need to fly to Key West Airport?

    The required travel and health documents for your Key West Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Key West Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Key West?

Best airlines flying from San Francisco to Key West

Compare and see reviews for airlines that fly from San Francisco to Key West with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,007 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights

Traveling to a place near Key West?

Book flights to Key West if you plan to visit one of these locations
Big Pine Key
Little Torch Key

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Key West?

It is quick and easy to find San Francisco to Key West flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Key West that suits you.

Can I find flights from San Francisco to Key West with flexible booking policies on momondo?

Flights from San Francisco to Key West with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Francisco to Key West?

Once all potential San Francisco to Key West flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Francisco to Key West right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to Key West flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Key West trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Fri 1/9
Fri 1/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States