$397 Cheap Flights from San Antonio (SAT) to Nantucket (ACK)

View $397 flight on Tue, Sep 2, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Nantucket, MA (ACK-Nantucket Memorial)

Cheap Flights from San Antonio to Nantucket (SAT-ACK)

Prices were available within the past 7 days and start at $397 for one-way flights and $577 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Sep 7 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$577 Roundtrip, found 5 days ago
$577
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 7 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $577 found 5 days ago
United
Sun, Sep 7 - Thu, Sep 18
SAT
San Antonio
ACK
Nantucket
$591 Roundtrip, found 5 days ago
$591
Roundtrip
found 5 days ago
Select United flight, departing Sun, Sep 7 from San Antonio to Nantucket, returning Thu, Sep 18, priced at $591 found 5 days ago
United
Sat, Sep 13 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$635 Roundtrip, found 5 days ago
$635
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 13 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $635 found 5 days ago
United
Tue, Sep 9 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$659 Roundtrip, found 5 days ago
$659
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $659 found 5 days ago
Delta
Sat, Sep 6 - Fri, Sep 19
SAT
San Antonio
ACK
Nantucket
$662 Roundtrip, found 5 days ago
$662
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 6 from San Antonio to Nantucket, returning Fri, Sep 19, priced at $662 found 5 days ago
United
Tue, Sep 9 - Thu, Sep 18
SAT
San Antonio
ACK
Nantucket
$673 Roundtrip, found 5 days ago
$673
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from San Antonio to Nantucket, returning Thu, Sep 18, priced at $673 found 5 days ago
United
Mon, Sep 8 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$700 Roundtrip, found 5 days ago
$700
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 8 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $700 found 5 days ago
Delta
Sat, Sep 6 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$712 Roundtrip, found 5 days ago
$712
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 6 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $712 found 5 days ago
United
Mon, Sep 8 - Thu, Sep 18
SAT
San Antonio
ACK
Nantucket
$714 Roundtrip, found 5 days ago
$714
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 8 from San Antonio to Nantucket, returning Thu, Sep 18, priced at $714 found 5 days ago
United
Tue, Sep 9 - Tue, Sep 16
SAT
San Antonio
ACK
Nantucket
$725 Roundtrip, found 5 days ago
$725
Roundtrip
found 5 days ago
Select United flight, departing Tue, Sep 9 from San Antonio to Nantucket, returning Tue, Sep 16, priced at $725 found 5 days ago
Flights from San Antonio (SAT) to Nantucket (ACK)
Origin airport
San Antonio Intl.
Destination airport
Nantucket Memorial
Roundtrip price
$576
Distance
1782 mi

San Antonio to Nantucket Flights

The cheapest times to fly from San Antonio to Nantucket

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 San Antonio to Nantucket are during the month of September. You can find some of the cheapest flights from San Antonio to Nantucket with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from San Antonio to Nantucket: 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 San Antonio to Nantucket

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 San Antonio to Nantucket in 2025. You can also book with separate airlines for your outbound and return journeys, from $397 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 San Antonio to Nantucket 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 San Antonio to Nantucket 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 San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK) cost?
Snag a cheap one-way flight from $397 or cheap return flight from $577 from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK)?
Planning your trip for September is a good way to save, as it's the cheapest month for flights between SAT and ACK. You'll typically find the lowest fares during the off-season.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SAT to ACK flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK)?
There are no daily nonstop flights departing from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SAT to ACK?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK)?
To arrive at Nantucket Memorial Airport (ACK) on schedule, pick a flight that takes off from San Antonio Intl. Airport (SAT) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK) last-minute?
Waiting until right before your break to book a flight from SAT to ACK generally means paying more. Although you may find some last-minute offers, there's no guarantee. Be flexible with your travel plans for the best chance of getting a bargain.
Is it cheaper to book a SAT to ACK flight and hotel package?
Booking a SAT to ACK flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip in one place. Pick from our extensive range of accommodations and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Nantucket Memorial Airport (ACK)?
In most instances, you're able to reschedule or cancel your SAT to ACK flight. However, additional charges may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, head to our Customer Service portal.

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*Available to One Key members.