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Cheap flights from San Francisco to Key West from $264

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 11/22. 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

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Cheap round-trip flights

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Delta Logo
9:30 pm - 11:03 amSFO-EYW
10h 33m1 stop
Delta Logo
2:35 pm - 11:00 pmEYW-SFO
11h 25m1 stop
$309Delta
Find Deal
mar., mar. 31 - mar., abr. 7
American Airlines Logo
9:00 am - 9:47 pmSFO-EYW
9h 47m1 stop
American Airlines Logo
1:33 pm - 11:25 pmEYW-SFO
12h 52m2 stops
$314American Airlines
Find Deal
jue., nov. 13 - mié., nov. 19
American Airlines Logo
6:07 am - 6:30 pmSFO-EYW
9h 23m2 stops
American Airlines Logo
4:02 pm - 11:39 pmEYW-SFO
10h 37m2 stops
$319American Airlines
Find Deal
mar., mar. 31 - mar., abr. 7
Delta Logo
9:30 pm - 11:03 amSFO-EYW
10h 33m1 stop
Delta Logo
6:00 pm - 12:26 amEYW-SFO
9h 26m1 stop
$323Delta
Find Deal
mar., mar. 10 - mié., mar. 11
American Airlines Logo
11:35 pm - 12:22 pmSFO-EYW
9h 47m1 stop
American Airlines Logo
6:31 am - 2:16 pmEYW-SFO
10h 45m2 stops
$328American Airlines
Find Deal
dom., feb. 15 - vie., feb. 20
American Airlines Logo
6:22 am - 7:22 pmSFO-EYW
10h 00m2 stops
American Airlines Logo
4:18 pm - 10:59 pmEYW-SFO
9h 41m1 stop
$344American Airlines
Find Deal
jue., oct. 30 - dom., nov. 2
American Airlines Logo
1:07 am - 3:29 pmSFO-EYW
11h 22m1 stop
American Airlines Logo
3:08 pm - 11:02 pmEYW-SFO
10h 54m1 stop
$349American Airlines
Find Deal
mar., mar. 10 - mar., mar. 17
United Airlines Logo
12:43 am - 9:09 pmSFO-EYW
17h 26m3 stops
United Airlines Logo
3:56 pm - 11:11 pmEYW-SFO
10h 15m1 stop
$524United Airlines
Find Deal
lun., feb. 16 - mar., feb. 24
JetBlue Logo
8:49 pm - 12:17 pmSFO-EYW
12h 28m1 stop
JetBlue Logo
1:12 pm - 12:52 amEYW-SFO
14h 40m1 stop
$553JetBlue
Find Deal
vie., dic. 26 - dom., ene. 4
United Airlines Logo
12:43 am - 9:09 pmSFO-EYW
17h 26m3 stops
United Airlines Logo
4:53 pm - 11:59 pmEYW-SFO
10h 06m1 stop
$605United Airlines
Find Deal
mar., mar. 10 - mar., mar. 17

Delta flights from San Francisco to Key West

Our best Delta deals on San Francisco to Key West flight tickets
Delta
Mar 31
SFO10:40 pmSan Francisco
9h 23m
1 stop
EYW11:03 amKey West
Apr 7
EYW2:35 pmKey West
11h 25m
1 stop
SFO11:00 pmSan Francisco
$309
Find similar
Delta
Mar 10
SFO9:30 pmSan Francisco
10h 33m
1 stop
EYW11:03 amKey West
Mar 11
EYW6:00 pmKey West
9h 26m
1 stop
SFO12:26 amSan Francisco
$323
Find similar
Delta
Oct 30
SFO7:15 amSan Francisco
9h 51m
1 stop
EYW8:06 pmKey West
Nov 3
EYW6:17 pmKey West
8h 39m
1 stop
SFO11:56 pmSan Francisco
$374
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
Nov 13
SFO9:00 amSan Francisco
9h 47m
1 stop
EYW9:47 pmKey West
Nov 19
EYW1:33 pmKey West
12h 52m
2 stops
SFO11:25 pmSan Francisco
$314
Find similar
American Airlines
Mar 31
SFO6:07 amSan Francisco
9h 23m
2 stops
EYW6:30 pmKey West
Apr 7
EYW4:02 pmKey West
10h 37m
2 stops
SFO11:39 pmSan Francisco
$319
Find similar
American Airlines
Feb 15
SFO11:35 pmSan Francisco
9h 47m
1 stop
EYW12:22 pmKey West
Feb 20
EYW6:31 amKey West
10h 45m
2 stops
SFO2:16 pmSan Francisco
$328
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 octubre 14, 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

mar. 3/31

9:30 pm-11:03 am

1 stop10h 33m

Key West

mar. 4/7

2:35 pm-11:00 pm

1 stop11h 25m

$309

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

jue. 11/13

9:00 am-9:47 pm

1 stop9h 47m

Key West

mié. 11/19

1:33 pm-11:25 pm

2 stops12h 52m

$314

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

mar. 3/31

6:07 am-6:30 pm

2 stops9h 23m

Key West

mar. 4/7

4:02 pm-11:39 pm

2 stops10h 37m

$319

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

mar. 3/10

9:30 pm-11:03 am

1 stop10h 33m

Key West

mié. 3/11

6:00 pm-12:26 am

1 stop9h 26m

$323

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

dom. 2/15

11:35 pm-12:22 pm

1 stop9h 47m

Key West

vie. 2/20

6:31 am-2:16 pm

2 stops10h 45m

$328

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

jue. 10/30

6:22 am-7:22 pm

2 stops10h 00m

Key West

dom. 11/2

4:18 pm-10:59 pm

1 stop9h 41m

$344

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

mar. 3/10

1:07 am-3:29 pm

1 stop11h 22m

Key West

mar. 3/17

3:08 pm-11:02 pm

1 stop10h 54m

$349

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

lun. 2/16

12:43 am-9:09 pm

3 stops17h 26m

Key West

mar. 2/24

3:56 pm-11:11 pm

1 stop10h 15m

$524

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

vie. 12/26

8:49 pm-12:17 pm

1 stop12h 28m

Key West

dom. 1/4

1:12 pm-12:52 am

1 stop14h 40m

$553

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

mar. 3/10

12:43 am-9:09 pm

3 stops17h 26m

Key West

mar. 3/17

4:53 pm-11:59 pm

1 stop10h 06m

$605

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 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 $481 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 October 2025, prices for San Francisco to Key West flights are approximately 24% 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

Direct flights

None
There are no direct flights from San Francisco to Key West. There are no popular flight routes from San Francisco to Key West.
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  • 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 06m, 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
11,042 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
7,975 reviews
Search Delta flights
United AirlinesPriceFrom $287Free CancellationRating
7.4
8,976 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.
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1 adult
jue. 11/13
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