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Cheap flights from San Francisco to Key West from $116

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 9/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Key West

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
Mon, Aug 17 - Sat, Aug 22
Delta Logo
6:00 am - 5:11 pm
SFO
-
EYW
8h 11m
1 stop
Delta Logo
6:00 pm - 12:15 am
EYW
-
SFO
9h 15m
1 stop
$355Delta
Thu, Nov 26 - Wed, Dec 2
American Airlines Logo
5:00 am - 6:48 pm
SFO
-
EYW
10h 48m
1 stop
American Airlines Logo
4:41 pm - 10:48 pm
EYW
-
SFO
9h 07m
1 stop
$369American Airlines
Fri, Jul 17 - Fri, Jul 24
American Airlines Logo
5:30 am - 6:24 pm
SFO
-
EYW
9h 54m
2 stops
American Airlines Logo
5:12 pm - 10:48 pm
EYW
-
SFO
8h 36m
1 stop
$378American Airlines
Wed, Oct 7 - Wed, Oct 14
Delta Logo
6:00 am - 5:11 pm
SFO
-
EYW
8h 11m
1 stop
Delta Logo
11:45 am - 7:37 pm
EYW
-
SFO
10h 52m
1 stop
$394Delta
Thu, Nov 26 - Fri, Dec 4
American Airlines Logo
9:00 am - 9:47 pm
SFO
-
EYW
9h 47m
1 stop
American Airlines Logo
12:00 pm - 8:14 pm
EYW
-
SFO
11h 14m
2 stops
$417American Airlines
Fri, Nov 13 - Wed, Nov 18
American Airlines Logo
8:24 am - 6:24 pm
SFO
-
EYW
7h 00m
1 stop
American Airlines Logo
5:12 pm - 10:48 pm
EYW
-
SFO
8h 36m
1 stop
$420American Airlines
Fri, Oct 23 - Wed, Oct 28
Multiple Airlines Logo
7:30 pm - 12:34 pm
SFO
-
EYW
14h 04m
2 stops
Multiple Airlines Logo
1:26 pm - 12:01 pm
EYW
-
SFO
25h 35m
1 stop
$426Multiple Airlines
Mon, Sep 7 - Mon, Sep 21
American Airlines Logo
5:00 am - 6:48 pm
SFO
-
EYW
10h 48m
1 stop
American Airlines Logo
4:41 pm - 10:48 pm
EYW
-
SFO
9h 07m
1 stop
$429American Airlines
Fri, Jul 17 - Fri, Jul 24
American Airlines Logo
8:24 am - 6:24 pm
SFO
-
EYW
7h 00m
1 stop
American Airlines Logo
3:40 pm - 10:21 pm
EYW
-
SFO
9h 41m
1 stop
$440American Airlines
Wed, Oct 14 - Mon, Oct 19

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American Airlines flights from San Francisco to Key West

Our best American Airlines deals on San Francisco to Key West flight tickets
American Airlines
Aug 17
SFO7:30 amSan Francisco
9h 09m
1 stop
EYW7:39 pmKey West
Aug 22
EYW7:10 pmKey West
8h 44m
1 stop
SFO12:54 amSan Francisco
$330
American Airlines
Jul 17
SFO5:00 amSan Francisco
10h 48m
1 stop
EYW6:48 pmKey West
Jul 24
EYW4:41 pmKey West
9h 07m
1 stop
SFO10:48 pmSan Francisco
$369
American Airlines
Nov 13
SFO9:00 amSan Francisco
9h 47m
1 stop
EYW9:47 pmKey West
Nov 18
EYW12:00 pmKey West
11h 14m
2 stops
SFO8:14 pmSan Francisco
$417

Delta flights from San Francisco to Key West

Our best Delta deals on San Francisco to Key West flight tickets
Delta
Nov 26
SFO6:00 amSan Francisco
8h 11m
1 stop
EYW5:11 pmKey West
Dec 2
EYW6:00 pmKey West
9h 15m
1 stop
SFO12:15 amSan Francisco
$355
Delta
Nov 26
SFO6:00 amSan Francisco
8h 11m
1 stop
EYW5:11 pmKey West
Dec 4
EYW11:45 amKey West
10h 52m
1 stop
SFO7:37 pmSan Francisco
$394
Delta
Nov 26
SFO6:00 amSan Francisco
8h 11m
1 stop
EYW5:11 pmKey West
Dec 4
EYW6:00 pmKey West
18h 59m
2 stops
SFO9:59 amSan Francisco
$442

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 June 26, 2026.
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

Cheapest round-trip

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Mon 8/17

7:30 am-7:39 pm

1 stop9h 09m

Key West

Sat 8/22

7:10 pm-12:54 am

1 stop8h 44m

$330

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Thu 11/26

6:00 am-5:11 pm

1 stop8h 11m

Key West

Wed 12/2

6:00 pm-12:15 am

1 stop9h 15m

$355

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Fri 7/17

5:00 am-6:48 pm

1 stop10h 48m

Key West

Fri 7/24

4:41 pm-10:48 pm

1 stop9h 07m

$369

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 10/7

5:30 am-6:24 pm

2 stops9h 54m

Key West

Wed 10/14

5:12 pm-10:48 pm

1 stop8h 36m

$378

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Thu 11/26

6:00 am-5:11 pm

1 stop8h 11m

Key West

Fri 12/4

11:45 am-7:37 pm

1 stop10h 52m

$394

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Fri 11/13

9:00 am-9:47 pm

1 stop9h 47m

Key West

Wed 11/18

12:00 pm-8:14 pm

2 stops11h 14m

$417
Quickest round-trip

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Fri 10/23

8:24 am-6:24 pm

1 stop7h 00m

Key West

Wed 10/28

5:12 pm-10:48 pm

1 stop8h 36m

$420

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Mon 9/7

7:30 pm-12:34 pm

2 stops14h 04m

Key West

Mon 9/21

1:26 pm-12:01 pm

1 stop25h 35m

$426

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Fri 7/17

5:00 am-6:48 pm

1 stop10h 48m

Key West

Fri 7/24

4:41 pm-10:48 pm

1 stop9h 07m

$429

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 10/14

8:24 am-6:24 pm

1 stop7h 00m

Key West

Mon 10/19

3:40 pm-10:21 pm

1 stop9h 41m

$440

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between San Francisco and Key West?

What is the cheapest month to fly to Key West?

In general, July 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 $398. If you are unable to visit Key West during the month of July, then departing from San Francisco during the month January is also very affordable. Most momondo users find prices during this month for around $405.

How far in advance should I book a flight from San Francisco 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 $567 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 $354 on momondo.

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

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 57m

Direct flights

None
The fastest flight from San Francisco to Key West takes 7h 57m
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

Frequently asked questions about flying from San Francisco to Key West

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

    Key West is 2542.9 mi away from San Francisco. Flights usually cover this in 7h 57m, 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
DeltaPriceFrom $258Free CancellationRating
7.8
8,453 reviews
Search Delta flights
American AirlinesPriceFrom $290Free CancellationRating
7.1
11,769 reviews
Search American Airlines flights
United AirlinesPriceFrom $391Free CancellationRating
7.4
9,893 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.

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