$118 Find Cheap Flights from San Diego to Florida Keys

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Diego to Florida Keys departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Florida Keys

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Florida Keys.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Diego to Florida Keys.
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Flight Deals

Cheap Flights from San Diego to Florida Keys

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Miami
Miami2 stops$226
Key West
Key West1 stop$309
Miami
Miami2 stops$226
Key West
Key West1 stop$309

Book Cheap San Diego to Florida Keys Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Diego to Florida Keys that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Diego to Florida Keys

Mon, Dec 1 - Tue, Dec 9
Multiple Airlines Logo
6:52 pm - 7:25 pmSAN-MIA
21h 33m2 stops
Multiple Airlines Logo
6:15 am - 1:30 pmMIA-SAN
10h 15m1 stop
$226Multiple Airlines
Find Deal
Thu, Nov 13 - Thu, Nov 20
Frontier Logo
6:25 am - 10:02 pmSAN-MIA
12h 37m1 stop
Frontier Logo
8:36 am - 11:59 pmMIA-SAN
18h 23m1 stop
$228Frontier
Find Deal
Sat, Dec 13 - Mon, Dec 15
Frontier Logo
6:25 am - 11:47 pmSAN-MIA
14h 22m2 stops
Frontier Logo
7:35 am - 3:56 pmMIA-SAN
11h 21m1 stop
$229Frontier
Find Deal
Tue, Nov 11 - Tue, Nov 18
United Airlines Logo
11:20 am - 9:59 pmSAN-MIA
7h 39m1 stop
United Airlines Logo
4:50 pm - 9:53 pmMIA-SAN
8h 03m1 stop
$232United Airlines
Find Deal
Tue, Nov 11 - Tue, Nov 18
United Airlines Logo
6:45 am - 7:52 pmSAN-MIA
10h 07m2 stops
United Airlines Logo
4:50 pm - 9:53 pmMIA-SAN
8h 03m1 stop
$238United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
American Airlines Logo
12:27 pm - 8:29 pmSAN-MIA
5h 02mnonstop
American Airlines Logo
8:49 am - 11:27 amMIA-SAN
5h 38mnonstop
$239American Airlines
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Sat, Nov 8 - Tue, Nov 11
American Airlines Logo
4:25 pm - 5:01 amSAN-MIA
9h 36m1 stop
American Airlines Logo
8:22 pm - 11:07 pmMIA-SAN
5h 45mnonstop
$245American Airlines
Find Deal
Sat, Nov 8 - Wed, Nov 12
Delta Logo
5:40 pm - 6:21 amSAN-MIA
9h 41m1 stop
Delta Logo
8:05 am - 3:31 pmMIA-SAN
10h 26m1 stop
$257Delta
Find Deal
Sat, Nov 8 - Wed, Nov 12
Delta Logo
5:40 pm - 6:21 amSAN-MIA
9h 41m1 stop
Delta Logo
8:05 am - 2:15 pmMIA-SAN
9h 10m1 stop
$267Delta
Find Deal
Tue, Nov 18 - Tue, Dec 2
Alaska Airlines Logo
10:56 am - 1:59 pmSAN-EYW
24h 03m3 stops
Alaska Airlines Logo
11:26 am - 10:13 amEYW-SAN
25h 47m2 stops
$900Alaska Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for San Diego to Florida Keys flights

Get data-powered insights and trends into flights from San Diego to Florida Keys to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from San Diego to Florida Keys?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $383, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from San Diego to Florida Keys?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Diego to Florida Keys, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from San Diego to Florida Keys is January, when tickets cost $399 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $513 and $475 respectively.

What’s the cheapest day of the week to fly from San Diego to Florida Keys?

The average price of all round-trip flights from San Diego to Florida Keys clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from San Diego to Florida Keys, look for departures on Wednesdays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Florida Keys, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Diego to Florida Keys, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from San Diego to Florida Keys, you should book around 4 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$118
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from San Diego to Miami

FAQs - booking Florida Keys flights

  • How does KAYAK find such low prices on flights from San Diego to Florida Keys?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Diego to Florida Keys.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Diego to Florida Keys?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from San Diego to Florida Keys is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Diego to Florida Keys?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from San Diego to Florida Keys with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Diego to Florida Keys?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from San Diego to Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Florida Keys?

    The cheapest time of day to fly to Florida Keys is generally in the evening, when round-trip flights cost $286 on average. Morning departures are around 83% more expensive than evening flights, on average. The most expensive time of day to fly to Florida Keys is generally at night, which is peak travel time and where the average cost of a ticket is $569.

Reviews of the top 5 airlines serving from San Diego to Florida Keys

 
See real verified KAYAK customer reviews for airlines flying from San Diego to Florida Keys. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Diego to Florida Keys? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11082 reviews
8.1Boarding
7.8Comfort
7.1Food
8.5Crew
7.0Entertainment
Airline reviews

My flight wait is 3 hours delayed due to Unknown reason. We waited a very long time in the tarmac. Our flight 24 was scheduled @ 7, therefore we left my house at 330 to park our car. We were at the gate @ 530, then we were told at 6a that it will be late , we boarded at 930 but did not take off until 1015. Therefore my arranged pick up in JFK was cancelled because of no show. Before all these I got an email offers of changing my flight to a different date which I took a day earlier. I will never again take Alaska Airlines, very Inefficient and Disappointing.

10.0 ExcellentGRACE, Aug 2025SAN - JFK
Read more Alaska Airlines reviews

My flight wait is 3 hours delayed due to Unknown reason. We waited a very long time in the tarmac. Our flight 24 was scheduled @ 7, therefore we left my house at 330 to park our car. We were at the gate @ 530, then we were told at 6a that it will be late , we boarded at 930 but did not take off until 1015. Therefore my arranged pick up in JFK was cancelled because of no show. Before all these I got an email offers of changing my flight to a different date which I took a day earlier. I will never again take Alaska Airlines, very Inefficient and Disappointing.

Such great crew, from checkin to the plane. So friendly and helpful, I was genuinely impressed.

Seats extremely uncomfortable, no entertainment, no snacks, and when boarding, half of the passengers needed to check in the carry on luggage without any explanation.

The flight was jumping between being delayed and closer to schedule about 5 times. Alaska air website showed incorrect times while google had latest info. This panic was horrible to deal with.

I always heard this was a terrible airline but I was happy to experience otherwise. The seats were more comfortable than delta. They did board late and gate was a little chaotic, which is to be expected for a budget airline. I would definitely do it again for that price.

Very expensive for short flights. Can’t communicate with Alaska Air about passport issue at check-in. Also no replies to my text messages. Wanted to extend our vacation for two more days but this expensive flight ticket is called SAVER and I couldn’t make changes or cancel or get a credit even, so I paid another airline for the return trip. Extremely disappointed.

They canceled my flight then changed me $155 for the same flight the next day

Our flight time was drastically changed which caused us to lose a day of vacation

I like the new adjustable headrest. Unfortunately 2 crying children were in front of us. But it was the first time and not holding Alaska accountable for that. Alaska always seems to have everything in order professional but comfortable.

Very bad, terrible food and late by 2 hours. Then no to open aircraft doors

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

The flight was an hour and a half late departing which was inconvenient

The flight was great. The gate location was way to far away!!!

The flight attendant in first class was beyond rude and didn't care at all about her job. AND the gate agent was even worse than the flight attendant for rudeness. She was awful.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

We didn't take off until an hour after we boarded.

Wish they had the seat-back video screens for watching movies or playing games.

Very good but wish they had the seat-back video screens for movies & games

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

Flight was delayed not sure why no explanation given and no apologies either. Otherwise the flight was fine

While waiting to claim my checked luggage, I discovered the airline had lost it. After a long wait and inquiries, I discovered it was on another flight. Fortunately, the airline finally sent my luggage home.

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

This flight never occurred because AA couldn’t get their act together.

They cancelled the flight 3 hours prior departure. Had to spend $400 for a ne way flight with Delta Airlines! Spirit Airlines are not serios!

Plastic seat really hurt my back. Cannot even recline on the flight. Very hard to sleep on the plane due to terrible seats . Food and drinks were expensive and not very good. There were like 2 open exit rows behind me. My isle was full so I asked flight attendants if I could sit there. They told me it was a safety issue??? I think it more unsafe to have no one sitting there. In case of emergency, you’d want someone there to help.

The entire staff from check in agents to flight attendants were pleasant and professional. Would suggest a complimentary water.

Very easy boarding! Crew was fantastic and offered us refreshments quickly and efficiently. Quick, nice flight!

My baggage broke and they did not offer me anything. No conversation

It was not good at all, I think the crew could be kinder

Cheap flight but really uncomfortable. Seat cushions flimsy. Jammed in middle seat when flight is not full. They don’t even give you water

My initial flight got overbooked whilst waiting at the gate, and they rebooked me on a later INDIRECT flight!. No offer of a refund

Don't board the plane and have us sit for 2 hours and go nowhere!

I never made my flight because of their poor service, as I said in my other review: I never made this flight. When I got to the airport I had a message to say that the flight was delayed and would be getting into Fort Lauderdale at 10 pm. My connecting flight was due to leave around 10:10 pm so there is no way I would have made the connection. I went back to the Spirit desk and tried to explain this to a desk agent who didn't understand. Eventually her supervisor came over and explained it. The desk agent was unhelpful and only offered options that would have required getting a hotel overnight. She offered no hotel or meal vouchers and when I said that it seemed my only option was to go to another airline she told me I needed to make a decision because they were closing the desk and would not be back till 3 pm. I went to Delta and had to pay extra but they could help get me back to Orlando. I now have to file a claim against Spirit and I am just glad I paid for insurance. Very unhappy and very poor service.

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Frontier is the Walmart of airlines. Frontier has removed adjustability and comfort from their seats to make the flight lighter and save gas. This makes it impossible to sleep on their flights. Their customer service is abysmal. Once, I bought a drink on the plane, and they swiped my credit card on the plane to pay for it. Then I got three weeks of daily notices from my bank telling me they tried to charge the wrong card number over and over again. I tried to call them, but they removed the ability to actually talk to someone that can resolve such a problem from their company to cut corners. The only way to talk to someone in person is to go to the check-in counter at the airport (40 minutes drive from my house). Eventually their system gave up on trying to charge the card, after 21 days of repeated tries. They don't pad their prices even a little to handle customer service issues like missed flights. They also have a blanket policy preventing helping you reschedule a missed flight if their system says you "cancelled" your own flight online. This is a major problem because their website is broken on mobile devices, the only web browser you have at the airport when their gate staff tell you that you have to reschedule your own missed flight online because they can't help you. I tried to reschedule my flight on my android device and instead, their website crashed and "cancelled" my missed flight. When I got to the counter, the agent argued with me for 5 minutes insisting that I intentionally cancelled my own flight (implying I had to buy another flight). She missed the point: the problem was that I could not buy another flight because their website is broken. I left to avoid more conflict with the "customer service" agent. I tried to redress my issue with their only other "customer service" chanel available: the contact form on their website. The response I got was more of the same: you cancelled your own flight, according to our website / computer records, therefore we won't help you. I was trying to explain the problem with their broken website that cost me hundreds of dollars by crashing / malfunctioning and resulting in a cancelled flight, but they only had deaf ears for this problem. Worst customer service I have ever experienced. I will never buy another Frontier flight again, because it is a risky, painful move that I will likely regret often.

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

Since you have to pay for overhead bags then they shouldn't be running out of space and asking individuals who paid to remove stuff from the overhead

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

It was a no frills flight. Would have liked to be able to charge my device

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