San Diego

Cheap flights from Florida Keys to San Diego (SAN)

EYW — SAN
Jul 10 — Jul 171
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Florida Keys to San Diego with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Florida Keys to San Diego

Keep the following information in mind while searching for Florida Keys to San Diego flight deals. Data was last updated June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$375
(Kiwi.com)

One-way from

$194
(Kiwi.com)
Provider with most accurate pricing for Key West-San Diego flight deals.
Provider most trusted by Cheapflights users for Key West-San Diego flights.
From Florida Keys to San Diego
One-way flight from Florida Keys to San Diego

Cheapflights Insights

Everything you need to know about your flight from Florida Keys to San Diego

How far ahead should I book a flight from Florida Keys to San Diego?

To ensure you get the cheapest price possible for a flight from Florida Keys to San Diego, you should look to book at least 48 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Florida Keys to San Diego?

Currently, September is the cheapest month in which you can book a flight from Florida Keys to San Diego (average of $100). Flying from Florida Keys to San Diego in August is currently the most expensive (average of $204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated June 10, 2026.
See what other customers who have flown with Alaska Airlines,Southwest, andDelta from Florida Keys to San Diego have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Crew

8.5

Comfort

7.8

Overall

7.9

Entertainment

7.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

robert,Feb 2026

LAS - SAN

The good customer service team made you fell welcome on the flight.

Related info for your journey

Find useful and relevant information for your journey from Florida Keys to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airport do you fly into for flights to San Diego from Florida Keys?

    San Diego (SAN), located 2.6 mi from the city center, is the airport you fly into when you book flights from Florida Keys to San Diego.

  • How long is the flight from Florida Keys to San Diego?

    For as low as $482, Southwest can have you in San Diego from Florida Keys in 9h 36m. Florida Keys and San Diego are separated by a distance of 2262 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Florida Keys to San Diego one-way?

    The cheapest airlines for a one-way flight from Florida Keys to San Diego are Frontier ($78), United Airlines ($128), and Delta ($128).

  • Can I find deals for flights from Florida Keys to San Diego that include hotel bookings?

    Yes. In addition to deals on Florida Keys to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Florida Keys to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Florida Keys to San Diego.

  • Can I find deals for business class flights from Florida Keys to San Diego?

    Yes. Cheapflights offers flight deals from Florida Keys to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Florida Keys to San Diego?

    Currently, September is the cheapest month in which you can book a flight from Florida Keys to San Diego (average of $100). Flying from Florida Keys to San Diego in August is currently the most expensive (average of $204). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
National City
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Florida Keys to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.