Cheap flights from San Antonio to Florida Keys from $45
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 Antonio to Florida Keys departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from San Antonio to Florida Keys
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Spirit Airlines flights from San Antonio to Florida Keys
Our best Spirit Airlines deals on San Antonio to Florida Keys flight tickets
American Airlines flights from San Antonio to Florida Keys
Our best American Airlines deals on San Antonio to Florida Keys flight tickets
See travel insights to Florida Keys from
How to get the cheapest flight ticket from San Antonio to Florida Keys
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 Florida Keys?
The month of September is another great option to travel to Florida Keys, with average flight prices from San Antonio averaging around $288.
What is the cheapest day to depart on your flight to Florida Keys?
The cheapest day to depart from San Antonio to Florida Keys is on a Saturday when prices can be found for as low as $523. The most expensive day to fly to Florida Keys is Thursday, with ticket prices averaging around $578.
What is the cheapest time of day to depart on your flight to Florida Keys?
According to our data, the cheapest time of day to fly to Florida Keys is in the evening. momondo users have found flights departing from San Antonio to Florida Keys in the evening for as low as $256. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the morning are often more expensive with an average ticket price of $552.
How far in advance should I book a flight to Florida Keys?
You are more likely to see cheaper flights to Florida Keys from San Antonio when booking 9 weeks ahead of your departure date. In general, you can expect to find flights to Florida Keys for around $339 when searching 9 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Florida Keys from San Antonio for as low as $231 on momondo.
What is the cheapest airline that flies from San Antonio to Florida Keys?
Spirit Airlines, Frontier, and Southwest are the most popular carriers operating from San Antonio to Florida Keys
What airlines fly to Florida Keys?
American Airlines, Delta and United Airlines are the top three most popular airlines that fly to Florida Keys from San Antonio according to our data. American Airlines is the first choice among our users, with 81% of people opting to fly with this airline when traveling to Florida Keys. Keep in mind that there are 3 different airlines that fly to Florida Keys on a routine basis, so you have a few additional options to choose from.
Cheap San Antonio to Florida Keys flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to Florida Keys
Best Price Found | $45 |
|---|---|
Fastest flight time | 2h 38m |
Direct flights | Every day |
Airports in Florida Keys | 2 airports |
When did momondo last update prices for flights from San Antonio Airport to Florida Keys?
Prices for flights from San Antonio Airport to Florida Keys are updated daily.
How many operators does momondo search for flights from San Antonio Airport to Florida Keys?
As of February 2025, there are 6 operators available to choose from for flights from San Antonio Airport to Florida Keys.
How old do you have to be to fly from San Antonio Airport to Florida Keys?
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 Antonio Airport to Florida Keys.
What documentation or ID do you need to fly to Florida Keys?
The travel and health documents required for your trip to Florida Keys can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Florida Keys. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Antonio to Florida Keys?
momondo data reveals that the most frequently booked plane model on the route from San Antonio to Florida Keys is Airbus A320-100/200, representing 11.17% of all bookings. The subsequent popular models are Airbus A320neo at 10.28%, Airbus A321-100/200 at 9.88%, and Boeing 737 MAX 8 at 9.81%.
Best airlines flying from San Antonio to Florida Keys
Compare and see reviews for airlines that fly from San Antonio to Florida Keys with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $218 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $225 | Free Cancellation | Rating 8.0 8,220 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from San Antonio to Florida Keys?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Antonio to Florida Keys. momondo saves you time and could save you money on your trip.
Can I find flights from San Antonio to Florida Keys with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for San Antonio to Florida Keys flights to just show those with flexible booking policies.
How can momondo help me find flights from San Antonio to Florida Keys?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Florida Keys.
I’m not ready to book a flight from San Antonio to Florida Keys right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Florida Keys, momondo offers a useful price alert feature which will track prices for flights to Florida Keys from San Antonio and alert you when they change.