$876 Cheap Flights from San Antonio (SAT) to Unalaska (DUT)

View $876 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines from San Antonio International Airport (SAT) to Unalaska, AK (DUT)

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Cheap Flights from San Antonio to Unalaska (SAT-DUT)

Prices were available within the past 7 days and start at $876 for one-way flights and $1,743 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Nov 3 - Mon, Nov 17
SAT
San Antonio
DUT
Unalaska
$1,743 Roundtrip, found 5 days ago
$1,743
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Nov 3 from San Antonio to Unalaska, returning Mon, Nov 17, priced at $1,743 found 5 days ago
Alaska Airlines
Thu, Oct 30 - Mon, Nov 17
SAT
San Antonio
DUT
Unalaska
$1,744 Roundtrip, found 5 days ago
$1,744
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Oct 30 from San Antonio to Unalaska, returning Mon, Nov 17, priced at $1,744 found 5 days ago
Alaska Airlines
Wed, Nov 19 - Mon, Dec 8
SAT
San Antonio
DUT
Unalaska
$1,750 Roundtrip, found 5 days ago
$1,750
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Nov 19 from San Antonio to Unalaska, returning Mon, Dec 8, priced at $1,750 found 5 days ago
Alaska Airlines
Mon, Nov 3 - Sun, Nov 16
SAT
San Antonio
DUT
Unalaska
$1,755 Roundtrip, found 5 days ago
$1,755
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Mon, Nov 3 from San Antonio to Unalaska, returning Sun, Nov 16, priced at $1,755 found 5 days ago
Alaska Airlines
Thu, Oct 30 - Sun, Nov 16
SAT
San Antonio
DUT
Unalaska
$1,756 Roundtrip, found 5 days ago
$1,756
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Thu, Oct 30 from San Antonio to Unalaska, returning Sun, Nov 16, priced at $1,756 found 5 days ago
Alaska Airlines
Wed, Nov 19 - Sun, Dec 7
SAT
San Antonio
DUT
Unalaska
$1,762 Roundtrip, found 5 days ago
$1,762
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Nov 19 from San Antonio to Unalaska, returning Sun, Dec 7, priced at $1,762 found 5 days ago
Delta
Wed, Nov 19 - Sat, Dec 6
SAT
San Antonio
DUT
Unalaska
$1,771 Roundtrip, found 5 days ago
$1,771
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 19 from San Antonio to Unalaska, returning Sat, Dec 6, priced at $1,771 found 5 days ago
Alaska Airlines
Sat, Nov 15 - Thu, Dec 4
SAT
San Antonio
DUT
Unalaska
$1,772 Roundtrip, found 5 days ago
$1,772
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from San Antonio to Unalaska, returning Thu, Dec 4, priced at $1,772 found 5 days ago
Alaska Airlines
Wed, Nov 12 - Sun, Nov 16
SAT
San Antonio
DUT
Unalaska
$1,774 Roundtrip, found 5 days ago
$1,774
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Nov 12 from San Antonio to Unalaska, returning Sun, Nov 16, priced at $1,774 found 5 days ago
Alaska Airlines
Sun, Nov 16 - Thu, Dec 4
SAT
San Antonio
DUT
Unalaska
$1,780 Roundtrip, found 5 days ago
$1,780
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Nov 16 from San Antonio to Unalaska, returning Thu, Dec 4, priced at $1,780 found 5 days ago
Alaska Airlines
Tue, Oct 28 - Mon, Nov 10
SAT
San Antonio
DUT
Unalaska
$1,783 Roundtrip, found 5 days ago
$1,783
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Tue, Oct 28 from San Antonio to Unalaska, returning Mon, Nov 10, priced at $1,783 found 5 days ago
Alaska Airlines
Sat, Nov 15 - Sun, Dec 7
SAT
San Antonio
DUT
Unalaska
$1,784 Roundtrip, found 5 days ago
$1,784
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 15 from San Antonio to Unalaska, returning Sun, Dec 7, priced at $1,784 found 5 days ago
Alaska Airlines
Sun, Nov 16 - Sun, Dec 7
SAT
San Antonio
DUT
Unalaska
$1,792 Roundtrip, found 5 days ago
$1,792
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sun, Nov 16 from San Antonio to Unalaska, returning Sun, Dec 7, priced at $1,792 found 5 days ago
Delta
Wed, Nov 19 - Thu, Dec 11
SAT
San Antonio
DUT
Unalaska
$1,794 Roundtrip, found 5 days ago
$1,794
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Nov 19 from San Antonio to Unalaska, returning Thu, Dec 11, priced at $1,794 found 5 days ago
Alaska Airlines
Sat, Nov 1 - Mon, Nov 17
SAT
San Antonio
DUT
Unalaska
$1,794 Roundtrip, found 5 days ago
$1,794
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Nov 1 from San Antonio to Unalaska, returning Mon, Nov 17, priced at $1,794 found 5 days ago
Delta
Tue, Oct 21 - Sat, Nov 1
SAT
San Antonio
DUT
Unalaska
$1,798 Roundtrip, found 5 days ago
$1,798
Roundtrip
found 5 days ago
Select Delta flight, departing Tue, Oct 21 from San Antonio to Unalaska, returning Sat, Nov 1, priced at $1,798 found 5 days ago

Alternative airports near Unalaska

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Unalaska, AK DUT. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $2,149
DUT
Unalaska, AK
CheapestClosest
Average driving time to city center7 min
Flights from $2,149

Frequently asked questions

How much does a flight from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT) cost?
Grab a cheap one-way flight from $876 or cheap return flight from $1,743 from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT)?
Planning your trip for November may help you find better deals, as it's the cheapest month for flights between SAT and DUT. You'll usually find the lowest fares during the off-season.
What is the cheapest airline that flies from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest SAT to DUT flight.
How many flights per day from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT)?
You'll have to hop on a flight with a layover if you're traveling from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from SAT to DUT?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, carrier 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 San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT)?
To touch down at Unalaska Airport (DUT) on time, pick a flight that leaves 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 Unalaska Airport (DUT) last-minute?
Booking your flight from SAT to DUT shortly before your trip is generally more expensive. But if you're flexible with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a SAT to DUT flight and hotel package?
You can save money by securing a SAT to DUT flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. After choosing your preferred accommodations and flights, you can add extras like car rentals, activities and tours.
Can I cancel or change the date of my flight from San Antonio Intl. Airport (SAT) to Unalaska Airport (DUT)?
Typically, you can modify or cancel your SAT to DUT flight. However, additional fees may apply, especially if you booked over 24 hours ago. Double-check your itinerary for the airline's fees and guidelines on flight changes, or if you need more information, go to our Customer Service portal.

Travel information

Travel information

Origin airport
San Antonio Intl.
Destination airport
Unalaska
Roundtrip price
$1,743
Distance
3721 mi

Book with confidence

Book with confidence

San Antonio to Unalaska Flights

The cheapest times to fly from San Antonio to Unalaska

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

 

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

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

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 Unalaska in 2025. You can also book with separate airlines for your outbound and return journeys, from $876 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 Unalaska 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 Unalaska 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.

 

San Antonio to Unalaska Flights

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*Available to One Key members.