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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 2/25. 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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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
9:08 am - 10:36 pm
SFO
-
EYW
10h 28m
1 stop
American Airlines Logo
4:20 pm - 11:15 pm
EYW
-
SFO
9h 55m
1 stop
$259American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
12:25 am - 11:11 am
SFO
-
EYW
7h 46m
1 stop
American Airlines Logo
2:06 pm - 11:10 pm
EYW
-
SFO
12h 04m
1 stop
$304American Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
12:25 am - 11:11 am
SFO
-
EYW
7h 46m
1 stop
American Airlines Logo
3:56 pm - 12:48 am
EYW
-
SFO
11h 52m
2 stops
$309American Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
9:08 am - 10:58 pm
SFO
-
EYW
10h 50m
2 stops
American Airlines Logo
3:58 pm - 11:15 pm
EYW
-
SFO
10h 17m
2 stops
$359American Airlines
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
9:14 am - 10:18 pm
SFO
-
EYW
10h 04m
1 stop
American Airlines Logo
11:56 am - 7:07 pm
EYW
-
SFO
10h 11m
1 stop
$382American Airlines
Tue, Mar 31 - Tue, Apr 7
American Airlines Logo
12:30 am - 4:49 pm
SFO
-
EYW
13h 19m
2 stops
American Airlines Logo
2:29 pm - 10:04 pm
EYW
-
SFO
10h 35m
1 stop
$387American Airlines
Mon, Mar 30 - Tue, Apr 7
American Airlines Logo
12:30 am - 4:49 pm
SFO
-
EYW
13h 19m
2 stops
American Airlines Logo
3:56 pm - 12:48 am
EYW
-
SFO
11h 52m
2 stops
$423American Airlines
Tue, Mar 17 - Wed, Mar 25
American Airlines Logo
6:00 am - 6:16 pm
SFO
-
EYW
9h 16m
1 stop
American Airlines Logo
2:01 pm - 9:28 pm
EYW
-
SFO
10h 27m
1 stop
$441American Airlines
Mon, Apr 20 - Mon, Apr 27
American Airlines Logo
7:25 am - 7:12 pm
SFO
-
EYW
8h 47m
1 stop
American Airlines Logo
2:06 pm - 11:10 pm
EYW
-
SFO
12h 04m
1 stop
$458American Airlines
Sat, Mar 14 - Wed, Mar 18
United Airlines Logo
5:00 am - 3:53 pm
SFO
-
EYW
7h 53m
1 stop
United Airlines Logo
6:35 pm - 1:28 am
EYW
-
SFO
9h 53m
1 stop
$459United Airlines
Sat, Feb 21 - Wed, Feb 25

American Airlines flights from San Francisco to Key West

Our best American Airlines deals on San Francisco to Key West flight tickets
American Airlines
Apr 8
SFO9:08 amSan Francisco
10h 28m
1 stop
EYW10:36 pmKey West
Apr 15
EYW4:20 pmKey West
9h 55m
1 stop
SFO11:15 pmSan Francisco
$259
American Airlines
Mar 17
SFO12:25 amSan Francisco
7h 46m
1 stop
EYW11:11 amKey West
Mar 25
EYW2:06 pmKey West
12h 04m
1 stop
SFO11:10 pmSan Francisco
$304
American Airlines
Mar 17
SFO12:25 amSan Francisco
7h 46m
1 stop
EYW11:11 amKey West
Mar 25
EYW3:56 pmKey West
11h 52m
2 stops
SFO12:48 amSan Francisco
$309

Delta flights from San Francisco to Key West

Our best Delta deals on San Francisco to Key West flight tickets
Delta
Mar 5
SFO10:50 pmSan Francisco
9h 09m
1 stop
EYW10:59 amKey West
Mar 9
EYW6:25 pmKey West
9h 10m
1 stop
SFO12:35 amSan Francisco
$514
Delta
Apr 19
SFO9:35 pmSan Francisco
10h 15m
1 stop
EYW10:50 amKey West
Apr 27
EYW6:19 pmKey West
8h 36m
1 stop
SFO11:55 pmSan Francisco
$529
Delta
Apr 20
SFO11:39 pmSan Francisco
8h 11m
1 stop
EYW10:50 amKey West
Apr 26
EYW6:19 pmKey West
8h 36m
1 stop
SFO11:55 pmSan Francisco
$649

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 February 3, 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

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 4/8

9:08 am-10:36 pm

1 stop10h 28m

Key West

Wed 4/15

4:20 pm-11:15 pm

1 stop9h 55m

$259

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 3/17

12:25 am-11:11 am

1 stop7h 46m

Key West

Wed 3/25

2:06 pm-11:10 pm

1 stop12h 04m

$304

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 3/17

12:25 am-11:11 am

1 stop7h 46m

Key West

Wed 3/25

3:56 pm-12:48 am

2 stops11h 52m

$309

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Wed 4/8

9:08 am-10:58 pm

2 stops10h 50m

Key West

Wed 4/15

3:58 pm-11:15 pm

2 stops10h 17m

$359

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 3/31

9:14 am-10:18 pm

1 stop10h 04m

Key West

Tue 4/7

11:56 am-7:07 pm

1 stop10h 11m

$382

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Mon 3/30

12:30 am-4:49 pm

2 stops13h 19m

Key West

Tue 4/7

2:29 pm-10:04 pm

1 stop10h 35m

$387

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Tue 3/17

12:30 am-4:49 pm

2 stops13h 19m

Key West

Wed 3/25

3:56 pm-12:48 am

2 stops11h 52m

$423

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Mon 4/20

6:00 am-6:16 pm

1 stop9h 16m

Key West

Mon 4/27

2:01 pm-9:28 pm

1 stop10h 27m

$441

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Sat 3/14

7:25 am-7:12 pm

1 stop8h 47m

Key West

Wed 3/18

2:06 pm-11:10 pm

1 stop12h 04m

$458

San FranciscoKey West

SFO - EYW

SFOEYW

San Francisco

Sat 2/21

5:00 am-3:53 pm

1 stop7h 53m

Key West

Wed 2/25

6:35 pm-1:28 am

1 stop9h 53m

$459

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 $296. If you are unable to visit Key West during the month of August, then departing from San Francisco during the month May is also very affordable. Most momondo users find prices during this month for around $378.

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 $508 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 February 2026, prices for San Francisco to Key West flights are approximately 48% 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 42m

Direct flights

None
The fastest flight from San Francisco to Key West takes 7h 42m
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 42m, 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
11,217 reviews
Search American Airlines flights
DeltaPriceFrom $258Free CancellationRating
7.9
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $390Free CancellationRating
7.4
9,236 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

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