What is the cheapest airline that flies from Key West to San Diego?

American Airlines is the most popular carrier operating from Key West to San Diego

What airlines fly to San Diego?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Diego from Key West according to our data. American Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 3 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

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

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

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

What documentation or ID do you need to fly to San Diego Airport?

The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$122 Cheap Flights from Key West to San Diego in 2025/26

1 adult

0 bags

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Key West to San Diego

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:10 am - 12:55 pmEYW-SAN

8h 45m1 stop

10:30 pm - 11:29 amSAN-EYW

9h 59m1 stop

$257Delta

Find Deal

sex, jan 9 - sex, jan 9

2:43 pm - 7:12 pmEYW-SAN

7h 29m1 stop

9:21 am - 11:56 pmSAN-EYW

11h 35m2 stops

$262American Airlines

Find Deal

sex, jan 9 - dom, jan 11

2:43 pm - 9:58 pmEYW-SAN

10h 15m2 stops

9:21 am - 11:56 pmSAN-EYW

11h 35m2 stops

$267American Airlines

Find Deal

sex, jan 9 - dom, jan 11

7:08 am - 3:03 pmEYW-SAN

10h 55m2 stops

10:25 pm - 11:05 amSAN-EYW

9h 40m1 stop

$323American Airlines

Find Deal

sex, jan 9 - sex, jan 9

6:06 am - 12:27 pmEYW-SAN

9h 21m1 stop

10:25 pm - 10:57 amSAN-EYW

9h 32m1 stop

$357American Airlines

Find Deal

qui, jan 15 - dom, jan 18

6:06 am - 12:27 pmEYW-SAN

9h 21m1 stop

8:25 am - 11:56 pmSAN-EYW

12h 31m2 stops

$362American Airlines

Find Deal

qui, jan 15 - dom, jan 18

6:05 pm - 10:37 pmEYW-SAN

31h 32m2 stops

10:40 pm - 1:03 pmSAN-EYW

11h 23m1 stop

$410United Airlines

Find Deal

qui, jan 15 - dom, jan 18

6:06 am - 12:27 pmEYW-SAN

9h 21m1 stop

10:25 pm - 10:57 amSAN-EYW

9h 32m1 stop

$418American Airlines

Find Deal

qui, jan 15 - dom, jan 18

1:22 pm - 9:58 pmEYW-SAN

11h 36m2 stops

10:25 pm - 10:57 amSAN-EYW

9h 32m1 stop

$423American Airlines

Find Deal

qui, jan 15 - dom, jan 18

6:06 am - 2:14 pmEYW-SAN

11h 08m2 stops

8:25 am - 11:56 pmSAN-EYW

12h 31m2 stops

$428American Airlines

Find Deal

qui, jan 15 - dom, jan 18

American Airlines flights from Key West to San Diego

Our best American Airlines deals on Key West to San Diego flight tickets

American Airlines

Jan 9

EYW2:43 pmKey West

7h 29m

1 stop

SAN7:12 pmSan Diego

Jan 11

SAN9:21 amSan Diego

11h 35m

2 stops

EYW11:56 pmKey West

$262

Find similar

American Airlines

Jan 9

EYW2:43 pmKey West

10h 15m

2 stops

SAN9:58 pmSan Diego

Jan 11

SAN9:21 amSan Diego

11h 35m

2 stops

EYW11:56 pmKey West

$267

Find similar

American Airlines

Jan 9

EYW7:08 amKey West

10h 55m

2 stops

SAN3:03 pmSan Diego

Jan 9

SAN10:25 pmSan Diego

9h 40m

1 stop

EYW11:05 amKey West

$323

Find similar

Delta flights from Key West to San Diego

Our best Delta deals on Key West to San Diego flight tickets

Delta

Jan 9

EYW7:10 amKey West

8h 45m

1 stop

SAN12:55 pmSan Diego

Jan 9

SAN10:30 pmSan Diego

9h 59m

1 stop

EYW11:29 amKey West

$257

Find similar

Delta

Jan 9

EYW7:10 amKey West

11h 30m

2 stops

SAN3:40 pmSan Diego

Jan 9

SAN10:00 pmSan Diego

12h 48m

2 stops

EYW1:48 pmKey West

$1,656

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

sex 1/9

7:10 am-12:55 pm

1 stop8h 45m

San Diego

sex 1/9

10:30 pm-11:29 am

1 stop9h 59m

$257

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

sex 1/9

2:43 pm-7:12 pm

1 stop7h 29m

San Diego

dom 1/11

9:21 am-11:56 pm

2 stops11h 35m

$262

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

sex 1/9

2:43 pm-9:58 pm

2 stops10h 15m

San Diego

dom 1/11

9:21 am-11:56 pm

2 stops11h 35m

$267

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

sex 1/9

7:08 am-3:03 pm

2 stops10h 55m

San Diego

sex 1/9

10:25 pm-11:05 am

1 stop9h 40m

$323

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

6:06 am-12:27 pm

1 stop9h 21m

San Diego

dom 1/18

10:25 pm-10:57 am

1 stop9h 32m

$357

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

6:06 am-12:27 pm

1 stop9h 21m

San Diego

dom 1/18

8:25 am-11:56 pm

2 stops12h 31m

$362

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

6:05 pm-10:37 pm

2 stops31h 32m

San Diego

dom 1/18

10:40 pm-1:03 pm

1 stop11h 23m

$410

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

6:06 am-12:27 pm

1 stop9h 21m

San Diego

dom 1/18

10:25 pm-10:57 am

1 stop9h 32m

$418

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

1:22 pm-9:58 pm

2 stops11h 36m

San Diego

dom 1/18

10:25 pm-10:57 am

1 stop9h 32m

$423

Key WestSan Diego

EYW - SAN

EYWSAN

Key West

qui 1/15

6:06 am-2:14 pm

2 stops11h 08m

San Diego

dom 1/18

8:25 am-11:56 pm

2 stops12h 31m

$428

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

Prices

Airlines

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Key West to San Diego is on a Friday. Travelers who choose to depart for San Diego on a Friday will often find tickets for as low as $333. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $546. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $347. Flights in the morning are often more expensive with an average ticket price of $537.

When to book flights from Key West to San Diego

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

Estimated round-trip price

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

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

Fastest flight time	8h 18m
Direct flights	None

The fastest flight from Key West to San Diego takes 8h 18m

There are no direct flights from Key West to San Diego. There are no popular flight routes from Key West to San Diego.

Search flight deals

How far is Key West to San Diego by plane?
Key West and San Diego are 2204.3 mi apart from one another. Flights usually cover this in 7h 29m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Key West Airport to San Diego Airport?
Prices for flights from Key West Airport to San Diego Airport were last updated today.
How old do you have to be to fly from Key West Airport to San Diego 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 Key West Airport to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Coronado

Chula Vista

El Cajon

Julian

National City

Imperial Beach

Poway

La Mesa

Borrego Springs

San Ysidro

Lemon Grove

Alpine

Santee

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Key West.

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

Yes. momondo allows you to filter the results for Key West to San Diego flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Key West and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are not ready to book a flight from Key West to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.