$69+ Cheap flights from San Antonio (SAT) to Key Largo, FL
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from San Antonio to Key Largo 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.Cheapflights Tip: The best prices from San Antonio to Key Largo are usually found in August or September, booked 75 days in advance, depart on a Saturday or Wednesday and return on a Friday
Cheap flight deals from San Antonio to Key Largo
Keep the following information in mind while searching for San Antonio to Key Largo flight deals. Data was last updated April 30, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $191 (Cheapflightsfares) |
One-way from | $69 (FlightHub) |
Popular in | January |
Cheapest in | August |
Average price | $383 |
Find flight deals from San Antonio to Key Largo
Cheapest flights from San Antonio to Key LargoExplore the most affordable flight options available from San Antonio to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
Explore the most affordable flight options available from San Antonio to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.
This Booking.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This CheapOair deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Southwest deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Cheapflights Fare Finder
Customize your flight search to find flights from San Antonio to Key Largo 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, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from San Antonio to Key Largo that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Fri 5/30
11:42 am-5:43 am
1 stop17h 01m
Miami
Mon 6/2
8:55 pm-5:04 am
1 stop9h 09m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Fri 5/9
3:22 pm-5:22 am
1 stop13h 00m
Miami
Sun 5/18
8:55 pm-5:04 am
1 stop9h 09m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Wed 5/28
6:38 am-3:37 pm
1 stop7h 59m
Miami
Tue 6/3
9:18 pm-11:22 pm
Nonstop3h 04m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Mon 6/30
5:25 am-1:08 pm
1 stop6h 43m
Miami
Thu 7/10
7:22 pm-12:14 am
1 stop5h 52m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Fri 5/9
3:22 pm-5:22 am
1 stop13h 00m
Miami
Sun 5/11
6:00 am-7:35 pm
1 stop14h 35m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Sun 5/25
4:25 pm-12:05 am
2 stops6h 40m
Miami
Tue 6/3
3:30 pm-11:15 pm
1 stop8h 45m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Sun 6/1
10:34 am-7:58 pm
1 stop8h 24m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Tue 6/24
1:25 pm-9:55 pm
1 stop7h 30m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Fri 5/9
3:22 pm-5:22 am
1 stop13h 00m
San AntonioMiami
SAT - MIA
SATMIA
San Antonio
Fri 6/6
10:01 am-12:21 am
2 stops13h 20m
Best time to book a flight from San Antonio to Key Largo
Have a flexible travel schedule? Discover the best time to fly to Key Largo from San Antonio with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from San Antonio to Key Largo
How far ahead should I book a flight from San Antonio to Key Largo?
Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Key Largo. Price data was last updated on April 25, 2025.
The price you pay for your flight from San Antonio to Key Largo may vary depending on when you book. For the best chance of a lower fare, look to book 75 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from San Antonio to Key Largo?
Currently, September is the cheapest month in which you can book a flight from San Antonio to Key Largo (average of $228). Flying from San Antonio to Key Largo in March is currently the most expensive (average of $289). 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.
What is the cheapest time of day to fly from SAT to KE9?
Find hourly flight availability from San Antonio to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.
When flying from San Antonio to Key Largo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What is the cheapest day to fly from San Antonio to Key Largo?
Use this chart to determine the cheapest time to fly round-trip from San Antonio to Key Largo. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their San Antonio to Key Largo flight should consider departing on Wednesday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from San Antonio to Key Largo
Explore weekly flight availability from San Antonio to Key Largo. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 30, 2025.
The most flights from SAT to KE9 are scheduled on a Tuesday (4 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (1 on average).
Rainfall in Key Largo by month
Plan your trip to Key Largo by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.
Temperature in Key Largo by month
Plan your trip to Key Largo by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).
Reviews of airlines servicing Key Largo
Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated April 30, 2025.
Read through reviews of airlines operating flights from San Antonio to Key Largo, such as Alaska Airlines, Southwest and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Comfort
Crew
Entertainment
Overall
Boarding
Food
Reviews
James,Apr 2025
LAX - SFO
Related info for your journey
Find useful and relevant information for your journey from San Antonio to Key Largo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Antonio to Key Largo
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from San Antonio to Key Largo
Discover the top 6 airlines that operate flights from San Antonio to Key Largo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$178 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$138 | Average$198 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$185 | Average$420 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$225 | Average$374 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$257 | Average$473 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$333 | Average$493 | FlexibilityNo cancel fee | On-time63% |