$193 Cheap Flights from Phoenix (PHX) to Alamosa (ALS)

View $193 flight on Wed, Sep 17, 2025Opens in a new window

Popular airlines from Phoenix Sky Harbor Intl. Airport (PHX) to Alamosa, CO (ALS-San Luis Valley Regional)

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Cheap Flights from Phoenix to Alamosa (PHX-ALS)

Prices were available within the past 7 days and start at $193 for one-way flights and $386 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 22 - Sat, Oct 25
PHX
Phoenix
ALS
Alamosa
$386 Roundtrip, found 5 days ago
$386
Roundtrip
found 5 days ago
Select United flight, departing Wed, Oct 22 from Phoenix to Alamosa, returning Sat, Oct 25, priced at $386 found 5 days ago
American Airlines
Wed, Oct 15 - Tue, Oct 21
PHX
Phoenix
ALS
Alamosa
$394 Roundtrip, just found
$394
Roundtrip
just found
Select American Airlines flight, departing Wed, Oct 15 from Phoenix to Alamosa, returning Tue, Oct 21, priced at $394 just found
American Airlines
Wed, Sep 3 - Thu, Sep 18
PHX
Phoenix
ALS
Alamosa
$404 Roundtrip, found 5 days ago
$404
Roundtrip
found 5 days ago
Select American Airlines flight, departing Wed, Sep 3 from Phoenix to Alamosa, returning Thu, Sep 18, priced at $404 found 5 days ago
American Airlines
Tue, Aug 19 - Fri, Sep 5
PHX
Phoenix
ALS
Alamosa
$410 Roundtrip, found 4 days ago
$410
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Aug 19 from Phoenix to Alamosa, returning Fri, Sep 5, priced at $410 found 4 days ago
American Airlines
Mon, Sep 1 - Thu, Sep 18
PHX
Phoenix
ALS
Alamosa
$414 Roundtrip, found 5 days ago
$414
Roundtrip
found 5 days ago
Select American Airlines flight, departing Mon, Sep 1 from Phoenix to Alamosa, returning Thu, Sep 18, priced at $414 found 5 days ago
Contour Airlines
Mon, Aug 18 - Fri, Sep 5
PHX
Phoenix
ALS
Alamosa
$415 Roundtrip, found 4 days ago
$415
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Mon, Aug 18 from Phoenix to Alamosa, returning Fri, Sep 5, priced at $415 found 4 days ago
United
Sat, Aug 16 - Thu, Aug 21
PHX
Phoenix
ALS
Alamosa
$419 Roundtrip, found 6 days ago
$419
Roundtrip
found 6 days ago
Select United flight, departing Sat, Aug 16 from Phoenix to Alamosa, returning Thu, Aug 21, priced at $419 found 6 days ago
Contour Airlines
Mon, Aug 18 - Tue, Aug 26
PHX
Phoenix
ALS
Alamosa
$420 Roundtrip, found 4 days ago
$420
Roundtrip
found 4 days ago
Select Contour Airlines flight, departing Mon, Aug 18 from Phoenix to Alamosa, returning Tue, Aug 26, priced at $420 found 4 days ago
Delta
Wed, Sep 10 - Mon, Sep 15
PHX
Phoenix
ALS
Alamosa
$441 Roundtrip, found 4 days ago
$441
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Sep 10 from Phoenix to Alamosa, returning Mon, Sep 15, priced at $441 found 4 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Aug 7 - Tue, Aug 19
PHX
Phoenix
ALS
Alamosa
$1,269 Roundtrip, found 2 days ago
$1,269
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Aug 7 from Phoenix to Alamosa, returning Tue, Aug 19, priced at $1,269 found 2 days ago

Alternative airports near Alamosa

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

Select flight to San Luis Valley Regional ALS. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $434
ALS
San Luis Valley Regional
CheapestClosest
Average driving time to city center4 min
Flights from $434
Flights from Phoenix (PHX) to Alamosa (ALS)
Origin airport
Sky Harbor Intl.
Destination airport
San Luis Valley Regional
Roundtrip price
$386
Distance
442 mi

Phoenix to Alamosa Flights

The cheapest times to fly from Phoenix to Alamosa

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 Phoenix to Alamosa are during the month of October. You can find some of the cheapest flights from Phoenix to Alamosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Phoenix to Alamosa

Sunday is one of the best days to book for cheap flights from Phoenix to Alamosa: 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 Phoenix to Alamosa

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 Phoenix to Alamosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $193 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 Phoenix to Alamosa 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 Phoenix to Alamosa 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 Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS) cost?
Discover the latest flight deals from PHX to ALS 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 PHX to ALS?
The cheapest flights from PHX to ALS 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 PHX to ALS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from PHX to ALS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS)?
Nonstop flights from Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHX to ALS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on a number of factors, including the time of year and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS)?
To arrive at San Luis Valley Regional Airport (ALS) without delays, select a flight that leaves from Sky Harbor Intl. Airport (PHX) before 3 PM. The chance 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 Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS) last-minute?
Holding off until just before your trip to book a flight from PHX to ALS often results in higher prices. While you may find some last-minute discounts, they aren't always guaranteed. Keep your travel plans flexible for the best chance of landing a bargain.
Is it cheaper to book a PHX to ALS flight and hotel package?
Opting for a PHX to ALS flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Choose from our extensive range of hotels and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Sky Harbor Intl. Airport (PHX) to San Luis Valley Regional Airport (ALS)?
In most instances, you're able to cancel or reschedule your PHX to ALS flight. However, additional fees may apply, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you want further details, go to our Customer Service portal.

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*Available to One Key members.