Cheap Flights from Charlotte Douglas to San Antonio International

Compare Charlotte Douglas to San Antonio International flight deals

Find the cheapest month or even day of the year to fly to San Antonio International

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Flight deals from Charlotte Douglas to San Antonio International

Looking for a cheap last-minute deal or the best return flight from Charlotte Douglas Airport to San Antonio International Airport? If you want to travel next month, return fares start from R 4,189. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Charlotte Douglas to San Antonio International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Charlotte Douglas to San Antonio International flights are currently cheapest in August.

Direct flights from Charlotte Douglas to San Antonio International

Charlotte Douglas to San Antonio International: Alternative routes

Compare routes from Charlotte Douglas to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

Charlotte to San Antonio: Flight information

The things to know before you go.
Cheapest flight foundR 2,186
Cheapest month to flySeptember
Average flight time3 hrs, 5 mins
Most popular airlineAmerican Airlines
Average flights per week54

Finding cheap flights from Charlotte Douglas to San Antonio International: Frequently asked questions

The best price we found for a return flight from Charlotte Douglas to San Antonio International is R 4,189. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 5 minutes is the average flight time from Charlotte Douglas to San Antonio International.
American Airlines and British Airways fly direct from Charlotte Douglas to San Antonio International.
As of July 2026, there are 54 flights per week flying from Charlotte Douglas to San Antonio International.
The cheapest month to fly from Charlotte Douglas to San Antonio International is usually August.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Charlotte Douglas Airport to San Antonio International Airport on Thursday, 13 August 2026.
Yes – the average flight time is 3 hours and 5 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Antonio International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Frontier Airlines and American Airlines offer the cheapest flight tickets to San Antonio International.

Travelling from Charlotte Douglas Airport (CLT) to San Antonio International Airport (SAT): what you need to know

  • The average duration of a direct flight from Charlotte Douglas Airport to San Antonio International Airport is 3 hours 5 minutes.

  • San Antonio is one hour behind Charlotte and observes the UTC-6 timezone.

  • You can choose from 27 weekly Charlotte Douglas Airport to San Antonio International Airport flights. The 07:10 departure with American Airlines is the earliest you can take. American Airlines operates the latest service of the day at 20:27.

  • Your CLT to SAT flight won't wait if you're running late, so show up at the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.

  • Flying during a peak month like August? Public holidays and other popular periods can result in longer queues and delays at airport checkpoints. Be extra cautious and arrive up to four hours before international flights and two hours before domestic departures.

  • Getting to San Antonio (and then exploring more of the United States!) is a cinch with American Airlines. This popular carrier offers direct flights from Charlotte Douglas Airport to San Antonio International Airport.

  • Most travellers choose to fly with American Airlines on this route.

  • American Airlines is the most punctual carrier offering CLT to SAT flights, with 78.92% of its services reaching their destination on time.

  • Think about adding a stopover when booking your ticket from Charlotte Douglas Airport to San Antonio International Airport. Just deselect 'Direct flights only' to break up your trip, or enjoy a detour to a new and interesting place. Check out these options between CLT and SAT:

    • Atlanta Hartsfield-Jackson Airport

    • Houston George Bush Intercntl. Airport

    • New Orleans Louis Armstrong Airport

How to find the cheapest flights from Charlotte Douglas Airport (CLT) to San Antonio International Airport (SAT)

  • R 2,186 is currently the lowest price for a one-way Charlotte Douglas Airport to San Antonio International Airport flight. Return flights start from R 4,189. These prices can change depending on availability.

  • It's often best to book as early as possible if you're hoping to get cheap tickets from CLT to SAT. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • The cheapest month for flights from Charlotte Douglas Airport to San Antonio International Airport is May. Use the 'Whole month' tool to see the lowest airfares if you have a flexible travel schedule.

  • There's no need to check every day to find out if fares have gone down when you set up a Price Alert. We'll let you know the moment there's a better deal on cheap flights from CLT to SAT.

  • Lock in the ideal flight for you by using the filters. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Charlotte Douglas Airport to San Antonio International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and number of stops.

Handy information about Charlotte Douglas Airport (CLT)

  • CLT is located at 5501 Josh Birmingham Parkway.

  • When it comes to the on-time performance of Charlotte Douglas Airport, 79% of flights meet their scheduled arrival time.

  • To get to Charlotte Douglas Airport from central Charlotte, it takes about 20 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 13 kilometres from the airport to the city centre.

  • You can expect a journey time of around 35 minutes on public transport.

  • Need a handy hotel close to CLT? If you've booked an early flight from Charlotte Douglas Airport to San Antonio International Airport, these stays will have you moments from your departure lounge:

Arriving at San Antonio International Airport (SAT)

Getting from San Antonio International Airport (SAT) to central San Antonio

  • The address for SAT is 9800 Airport Boulevard.

  • San Antonio International Airport is roughly 14 kilometres from the centre of San Antonio. The drive time takes around 20 minutes.

  • If you're travelling by public transport, expect a journey time of about 50 minutes.

When to fly to San Antonio International Airport (SAT)

  • It's time to work out your trip dates for your flight from Charlotte Douglas Airport to San Antonio International Airport. July is the busiest month to visit San Antonio. If you'd like a more laid-back vibe, go in March.

  • The warmest month in San Antonio is August, with the temperature ranging between 24ºC (75ºF) and 40ºC (104ºF). Lock in your flights from Charlotte Douglas Airport to San Antonio International Airport in this month if this is the type of weather you like.

  • Search for cheap tickets from CLT to SAT in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 20ºC (68ºF) on average.

Explore more of the United States

  • Houston is just one of the many places in the United States waiting to be discovered once you've seen the sights of San Antonio. Around 306 kilometres away to the east, top sights here include The Museum of Fine Arts, Houston, Beck Building, Houston Museum of Natural Science and The Menil Collection.

  • Around 402 kilometres north-east of San Antonio, Dallas is another essential stop in the United States. Experience this destination's highlights firsthand at Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.