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$61+ Cheap flights from Key Largo, FL to San Antonio (SAT)

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — SAT
Dec 27 — Jan 31
Fri 12/27
Fri 1/3
1 adult, Economy
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The best prices from Key Largo to San Antonio are usually found in September or October, booked 84 days in advance, depart on a Friday or Wednesday and return on a Tuesday

Cheap flight deals from Key Largo to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Key Largo (KE9) to San Antonio (SAT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 22, 2024.

Round-trip from

$212
(Mytrip)

One-way from

$61
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$348
From Key Largo to San Antonio
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One-way flight from Key Largo to San Antonio
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High demand for flights, 3% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Key Largo to San Antonio

Cheapest flights from Key Largo to San Antonio
Explore the most affordable flight options available from Key Largo to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 22, 2024.

This American Airlines deal was found by Cheapflights users on 12/21. 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.
Tue 12/317:34 pmMIA - SAT
Nonstop3h 29mAmerican Airlines
Sun 1/195:23 amSAT - MIA
Nonstop2h 48mAmerican Airlines
Deal found 12/21$314
This Delta deal was found by Cheapflights users on 12/21. 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.
Tue 12/312:50 pmMIA - SAT
1 stop10h 06mDelta
Sun 1/1912:30 pmSAT - MIA
1 stop9h 57mDelta
Deal found 12/21$333
This United Airlines deal was found by Cheapflights users on 12/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:55 pmMIA - SAT
1 stop7h 05mUnited Airlines
Sun 1/195:30 amSAT - MIA
2 stops9h 49mUnited Airlines
Deal found 12/21$434
This Southwest deal was found by Cheapflights users on 12/21. 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.
Wed 12/252:25 pmMIA - SAT
2 stops8h 40mSouthwest
Wed 1/16:10 amSAT - MIA
1 stop7h 50mSouthwest
Deal found 12/21$465
This Mytrip deal was found by Cheapflights users on 12/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/292:12 pmMIA - SAT
3 stops24h 00mSpirit Airlines
Mon 1/67:37 pmSAT - MIA
2 stops25h 23mSpirit Airlines
Deal found 12/20$469
This eDestinos deal was found by Cheapflights users on 12/20. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2910:20 pmMIA - SAT
3 stops24h 50mMultiple Airlines
Sat 1/410:09 amSAT - MIA
2 stops36h 50mMultiple Airlines
Deal found 12/20$553
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:07 pmMIA - SAT
2 stops24h 19mAlaska Airlines
Sun 12/297:22 pmSAT - MIA
2 stops21h 33mAlaska Airlines
Deal found 12/21$1,338

Find flights from Key Largo to San Antonio within your budget

Customize your flight search to find flights from Key Largo to San Antonio 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 December 22, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Sat 1/25

6:14 pm-12:02 pm

1 stop18h 48m

San Antonio

Tue 1/28

5:45 am-9:47 pm

1 stop15h 02m

$212

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Mon 1/13

8:36 pm-6:43 pm

2 stops23h 07m

San Antonio

Sun 1/26

1:52 pm-11:37 pm

1 stop8h 45m

$264

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Fri 1/24

9:47 pm-12:13 am

Nonstop3h 26m

San Antonio

Tue 1/28

5:23 am-9:11 am

Nonstop2h 48m

$269

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Tue 1/14

6:05 pm-12:27 am

1 stop7h 22m

San Antonio

Thu 1/23

12:30 pm-11:27 pm

1 stop9h 57m

$288

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Thu 2/6

10:18 am-7:22 pm

2 stops10h 04m

San Antonio

Tue 2/11

9:40 am-3:47 pm

1 stop5h 07m

$314

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Fri 1/24

1:50 pm-9:40 pm

2 stops8h 50m

San Antonio

Wed 1/29

9:05 am-6:35 pm

2 stops8h 30m

$323

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Sun 1/5

6:00 am-1:28 pm

1 stop8h 28m

San Antonio

Thu 1/9

1:02 pm-1:52 am

1 stop11h 50m

$393

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Thu 4/10

6:02 pm-5:40 am

1 stop12h 38m

San Antonio

Sun 4/13

7:21 pm-6:59 pm

2 stops22h 38m

$637

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Wed 1/29

8:00 am-12:02 pm

1 stop29h 02m

$61

MiamiSan Antonio

MIA - SAT

MIASAT

Miami

Mon 2/10

1:10 pm-4:33 am

2 stops16h 23m

$113

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 16 results
1
2

Best time to book a flight from Key Largo to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Key Largo with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Key Largo to San Antonio

Get recent, data-driven insights about flights from Key Largo to San Antonio including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Key Largo to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to San Antonio. Price data was last updated on December 20, 2024.

Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo to San Antonio?

Currently, August is the cheapest month in which you can book a flight from Key Largo to San Antonio (average of $295). Flying from Key Largo to San Antonio in March is currently the most expensive (average of $376). 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 KE9 to SAT?

Find hourly flight availability from Key Largo to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 22, 2024.

When flying from Key Largo to San Antonio, 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 Key Largo to San Antonio?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to San Antonio. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to San Antonio flight should consider departing on Friday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to San Antonio

Explore weekly flight availability from Key Largo to San Antonio. 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 December 22, 2024.

The most flights from KE9 to SAT are scheduled on a Saturday (3 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, 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 51.8 F).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 Antonio. Reviews last updated December 22, 2024.
To help decide which airline to fly from Key Largo to San Antonio, see what other customers have to say about Delta, Alaska Airlines and Spirit Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Southwest
8.1
Very good
4,804 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Alaska Airlines
8.0
Very good
9,537 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Delta
8.0
Very good
8,594 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

United Airlines
7.4
Good
9,028 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,804 reviews

Boarding

8.2

Entertainment

7.7

Comfort

8.1

Crew

8.7

Food

7.2

Overall

8.1

Reviews

1 / 10

My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to San Antonio. 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 Antonio from Key Largo?

    San Antonio (SAT), located 7.6 mi from the city center, is the airport you fly into when you book flights from Key Largo to San Antonio. 5 airlines have flights to San Antonio from Key Largo on a regular basis. Booking flights from Key Largo to San Antonio should not be difficult; the airport handles an average of 2 inbound flights from Key Largo per day.

  • What are the cheapest airlines to fly from Key Largo to San Antonio one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $61. Users have also found prices from $113 and $135 on Spirit Airlines and American Airlines, respectively.

  • What are the most reliable airlines from Key Largo to San Antonio?

    The top 3 most reliable airlines when flying from Key Largo to San Antonio are Finnair (80%), American Airlines (78%) and Royal Air Maroc (68%).

  • What are the cheapest flights from Key Largo to San Antonio?

    While on average a flight from Key Largo to San Antonio is generally $428, our data shows the cheapest flight currently is $189. When looking at the most popular route, (Miami - San Antonio), you can expect to pay $212 for that flight.

  • Can I find deals for flights from Key Largo to San Antonio that include hotel bookings?

    Yes. In addition to deals on Key Largo to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to San Antonio?

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

  • Can I find deals for business class flights from Key Largo to San Antonio?

    Yes. Cheapflights offers flight deals from Key Largo to San Antonio 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 Key Largo to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Key Largo to San Antonio (average of $295). Flying from Key Largo to San Antonio in March is currently the most expensive (average of $376). 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.

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Top 5 airlines flying from Key Largo to San Antonio

Discover the top 5 airlines that operate flights from Key Largo to San Antonio. 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 December 22, 2024.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$56Average$155FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$170Average$337FlexibilityNo cancel feeOn-time71%
DeltaCheapest$215Average$381FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$216Average$397FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$326Average$396FlexibilityNo cancel feeOn-time63%
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