$123 Cheap Flights from Raleigh (RDU) to San Antonio (SAT)

View $123 flight on Wed, Jul 2, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to San Antonio International Airport (SAT)

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Find available prices by choosing your travel dates.

Cheap Flights from Raleigh to San Antonio (RDU-SAT)

Prices were available within the past 7 days and start at $123 for one-way flights and $250 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines
Wed, Jul 2 - Mon, Jul 14
RDU
Raleigh
SAT
San Antonio
$250 Roundtrip, found 21 hours ago
$250
Roundtrip
found 21 hours ago
Select Southwest Airlines flight, departing Wed, Jul 2 from Raleigh to San Antonio, returning Mon, Jul 14, priced at $250 found 21 hours ago
United
Wed, Jul 23 - Wed, Jul 30
RDU
Raleigh
SAT
San Antonio
$250 Roundtrip, found 15 hours ago
$250
Roundtrip
found 15 hours ago
Select United flight, departing Wed, Jul 23 from Raleigh to San Antonio, returning Wed, Jul 30, priced at $250 found 15 hours ago
American Airlines
Wed, Jul 23 - Wed, Jul 30
RDU
Raleigh
SAT
San Antonio
$254 Roundtrip, found 15 hours ago
$254
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Wed, Jul 23 from Raleigh to San Antonio, returning Wed, Jul 30, priced at $254 found 15 hours ago
American Airlines
Thu, Jul 3 - Mon, Jul 7
RDU
Raleigh
SAT
San Antonio
$255 Roundtrip, just found
$255
Roundtrip
just found
Select American Airlines flight, departing Thu, Jul 3 from Raleigh to San Antonio, returning Mon, Jul 7, priced at $255 just found
Delta
Wed, Jul 23 - Wed, Jul 30
RDU
Raleigh
SAT
San Antonio
$255 Roundtrip, found 15 hours ago
$255
Roundtrip
found 15 hours ago
Select Delta flight, departing Wed, Jul 23 from Raleigh to San Antonio, returning Wed, Jul 30, priced at $255 found 15 hours ago
Delta
Mon, Jul 7 - Mon, Jul 14
RDU
Raleigh
SAT
San Antonio
$257 Roundtrip, found 2 hours ago
$257
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Jul 7 from Raleigh to San Antonio, returning Mon, Jul 14, priced at $257 found 2 hours ago
Delta
Thu, Jul 3 - Tue, Jul 8
RDU
Raleigh
SAT
San Antonio
$258 Roundtrip, found 10 hours ago
$258
Roundtrip
found 10 hours ago
Select Delta flight, departing Thu, Jul 3 from Raleigh to San Antonio, returning Tue, Jul 8, priced at $258 found 10 hours ago
American Airlines
Thu, Jun 12 - Mon, Jun 30
RDU
Raleigh
SAT
San Antonio
$259 Roundtrip, found 3 hours ago
$259
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Jun 12 from Raleigh to San Antonio, returning Mon, Jun 30, priced at $259 found 3 hours ago
Delta
Mon, Jul 7 - Mon, Jul 14
RDU
Raleigh
SAT
San Antonio
$260 Roundtrip, found 2 hours ago
$260
Roundtrip
found 2 hours ago
Select Delta flight, departing Mon, Jul 7 from Raleigh to San Antonio, returning Mon, Jul 14, priced at $260 found 2 hours ago
Frontier Airlines
Wed, May 7 - Wed, May 14
RDU
Raleigh
SAT
San Antonio
$268 Roundtrip, found 1 day ago
$268
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Wed, May 7 from Raleigh to San Antonio, returning Wed, May 14, priced at $268 found 1 day ago
Flights from Raleigh (RDU) to San Antonio (SAT)
Origin airport
Raleigh - Durham Intl.
Destination airport
San Antonio Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$250
Distance
1222 mi

Raleigh to San Antonio Flights

The cheapest times to fly from Raleigh to San Antonio

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Raleigh to San Antonio are during the month of July. You can find some of the cheapest flights from Raleigh to San Antonio with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Raleigh to San Antonio

Sunday is one of the best days to book for cheap flights from Raleigh to San Antonio: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Raleigh to San Antonio

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Raleigh to San Antonio in 2025. You can also book with separate airlines for your outbound and return journeys, from $123 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Raleigh to San Antonio flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Raleigh to San Antonio airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT) cost?
Discover the latest flight deals from RDU to SAT by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from RDU to SAT?
The cheapest flights from RDU to SAT are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from RDU to SAT?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from RDU to SAT. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT)?
Nonstop flights from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT) aren’t available daily, so you’ll have to take a flight with a layover. Explore your options with Expedia’s filters. Enter your travel dates and select either “1 Stop” or “2+ Stops.”
What day of the week has the most flights from RDU to SAT?
Usually you’ll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT)?
Choose a flight from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT) that leaves before 3 PM to reduce the risk of cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT) last-minute?
Holding off until just before your trip to book a ticket from RDU to SAT generally means paying more. While you might find some last-minute deals, there’s no guarantee. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book a RDU to SAT flight and hotel package?
You’ll typically save money by securing a RDU to SAT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one convenient place. Once you’ve chosen your ideal flights and accommodations, you can add extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to San Antonio Intl. Airport (SAT)?
If you reserved your RDU to SAT flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you’d like more information.

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*Available to One Key members.