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Cheap flights from San Diego to Key West from $155

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 Diego to Key West departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Diego to Key West

Cheap round-trip flights

American Airlines Logo
7:02 am - 4:32 pmSAN-EYW
6h 30m1 stop
American Airlines Logo
1:55 pm - 6:21 pmEYW-SAN
7h 26m1 stop
$309American Airlines
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Fri, Jan 23 - Tue, Jan 27
American Airlines Logo
7:02 am - 6:32 pmSAN-EYW
8h 30m1 stop
American Airlines Logo
1:24 pm - 8:08 pmEYW-SAN
9h 44m2 stops
$314American Airlines
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Fri, Jan 23 - Tue, Jan 27
Logo
7:47 pm - 2:54 pmSAN-EYW
16h 07m2 stops
Logo
10:54 am - 7:29 amEYW-SAN
23h 35m2 stops
$341
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Sun, Sep 28 - Thu, Oct 2
Logo
7:47 pm - 2:54 pmSAN-EYW
16h 07m2 stops
Logo
10:54 am - 12:40 pmEYW-SAN
28h 46m3 stops
$365
Find Deal
Sun, Sep 28 - Thu, Oct 2
Delta Logo
10:30 pm - 10:55 amSAN-EYW
9h 25m1 stop
Delta Logo
6:10 pm - 11:24 pmEYW-SAN
8h 14m1 stop
$428Delta
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Fri, Sep 12 - Mon, Sep 15
Delta Logo
8:00 am - 8:12 pmSAN-EYW
9h 12m1 stop
Delta Logo
2:00 pm - 7:26 pmEYW-SAN
8h 26m1 stop
$457Delta
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Tue, Aug 26 - Wed, Aug 27
United Airlines Logo
6:30 pm - 12:46 pmSAN-EYW
15h 16m2 stops
United Airlines Logo
4:50 pm - 11:44 pmEYW-SAN
9h 54m2 stops
$524United Airlines
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Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
7:38 pm - 11:39 amSAN-EYW
13h 01m2 stops
United Airlines Logo
4:05 pm - 2:53 pmEYW-SAN
25h 48m3 stops
$604United Airlines
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Fri, Jan 23 - Tue, Jan 27
Alaska Airlines Logo
2:11 pm - 12:05 pmSAN-EYW
18h 54m3 stops
Alaska Airlines Logo
11:08 am - 12:05 amEYW-SAN
15h 57m2 stops
$727Alaska Airlines
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Thu, Nov 20 - Mon, Nov 24
Alaska Airlines Logo
3:43 pm - 12:05 pmSAN-EYW
17h 22m2 stops
Alaska Airlines Logo
12:46 pm - 9:33 amEYW-SAN
23h 47m3 stops
$872Alaska Airlines
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Thu, Nov 20 - Mon, Nov 24

United Airlines flights from San Diego to Key West

Our best United Airlines deals on San Diego to Key West flight tickets
United Airlines
Jan 22
SAN6:30 pmSan Diego
15h 16m
2 stops
EYW12:46 pmKey West
Jan 26
EYW4:50 pmKey West
9h 54m
2 stops
SAN11:44 pmSan Diego
$524
Find similar
United Airlines
Jan 23
SAN7:38 pmSan Diego
13h 01m
2 stops
EYW11:39 amKey West
Jan 27
EYW4:05 pmKey West
25h 48m
3 stops
SAN2:53 pmSan Diego
$604
Find similar
United Airlines
Nov 19
SAN12:07 pmSan Diego
23h 02m
3 stops
EYW2:09 pmKey West
Nov 23
EYW4:00 pmKey West
19h 06m
2 stops
SAN8:06 amSan Diego
$825
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American Airlines flights from San Diego to Key West

Our best American Airlines deals on San Diego to Key West flight tickets
American Airlines
Jan 23
SAN7:02 amSan Diego
6h 30m
1 stop
EYW4:32 pmKey West
Jan 27
EYW1:55 pmKey West
7h 26m
1 stop
SAN6:21 pmSan Diego
$309
Find similar
American Airlines
Jan 23
SAN7:02 amSan Diego
8h 30m
1 stop
EYW6:32 pmKey West
Jan 27
EYW1:24 pmKey West
9h 44m
2 stops
SAN8:08 pmSan Diego
$314
Find similar
American Airlines
Nov 19
SAN6:46 amSan Diego
8h 05m
1 stop
EYW5:51 pmKey West
Nov 23
EYW12:40 pmKey West
11h 31m
1 stop
SAN9:11 pmSan Diego
$374
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momondo Fare Finder

 
Customize your flight search to find flights from San Diego 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 July 31, 2025.
Use the filters below to find and compare flights from San Diego to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Fri 1/23

7:02 am-4:32 pm

1 stop6h 30m

Key West

Tue 1/27

1:55 pm-6:21 pm

1 stop7h 26m

$309

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Fri 1/23

7:02 am-6:32 pm

1 stop8h 30m

Key West

Tue 1/27

1:24 pm-8:08 pm

2 stops9h 44m

$314

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Sun 9/28

7:47 pm-2:54 pm

2 stops16h 07m

Key West

Thu 10/2

10:54 am-7:29 am

2 stops23h 35m

$341

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Sun 9/28

7:47 pm-2:54 pm

2 stops16h 07m

Key West

Thu 10/2

10:54 am-12:40 pm

3 stops28h 46m

$365

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Fri 9/12

10:30 pm-10:55 am

1 stop9h 25m

Key West

Mon 9/15

6:10 pm-11:24 pm

1 stop8h 14m

$428

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Tue 8/26

8:00 am-8:12 pm

1 stop9h 12m

Key West

Wed 8/27

2:00 pm-7:26 pm

1 stop8h 26m

$457

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Thu 1/22

6:30 pm-12:46 pm

2 stops15h 16m

Key West

Mon 1/26

4:50 pm-11:44 pm

2 stops9h 54m

$524

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Fri 1/23

7:38 pm-11:39 am

2 stops13h 01m

Key West

Tue 1/27

4:05 pm-2:53 pm

3 stops25h 48m

$604

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Thu 11/20

2:11 pm-12:05 pm

3 stops18h 54m

Key West

Mon 11/24

11:08 am-12:05 am

2 stops15h 57m

$727

San DiegoKey West

SAN - EYW

SANEYW

San Diego

Thu 11/20

3:43 pm-12:05 pm

2 stops17h 22m

Key West

Mon 11/24

12:46 pm-9:33 am

3 stops23h 47m

$872

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 Diego 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 Diego and Key West?

What is the cheapest month to fly to Key West?

In general, August is the cheapest month to fly from San Diego to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $378. If you are unable to visit Key West during the month of August, then departing from San Diego during the month January is also very affordable. Most momondo users find prices during this month for around $398.

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 Diego is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $453. 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 Diego to Key West for around $676.

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 evening. momondo users have found flights departing from San Diego to Key West in the evening for as low as $510. 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 morning, with an average ticket price of $555. Departure times in the morning 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 Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $495 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 Diego for as low as $274 on momondo.

Can stopping save me money on San Diego to Key West flights?

You could potentially save up to 17% on your flight if you consider stops on a San Diego to Key West flight.

When to book flights from San Diego to Key West

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

Cheap San Diego to Key West (SAN to EYW) flight deals and tips

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

Best Price Found

$155

Fastest flight time

6h 30m

Direct flights

None

Airports in Key West

1 airport
The best one-way flight to Key West from San Diego in the past 72 hours is $155. The best round-trip flight deal from San Diego to Key West found on momondo in the last 72 hours is $309.
The fastest flight from San Diego to Key West takes 6h 30m
There are no direct flights from San Diego to Key West. Popular non-direct route for this connection is San Diego Airport - Key West Airport.
There is 1 airport near Key West: Key West (EYW)
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  • How far is San Diego to Key West by plane?

    Key West is 2204.3 mi away from San Diego. Typically, this will take 6h 30m by plane in normal conditions.

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

    Prices for flights from San Diego Airport to Key West Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Diego Airport to Key West Airport.

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

    The travel and health documents you'll need for your trip to Key West Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Key West Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San Diego to Key West

Compare and see reviews for airlines that fly from San Diego to Key West with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $278Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
10,000 reviews
Search American 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 Diego to Key West?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Diego to Key West. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Key West from San Diego on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Diego to Key West flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Key West from San Diego are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Key West trip

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