$269 Cheap Flights from Alamosa (ALS) to Phoenix (PHX)

View $269 flight on Fri, Oct 24, 2025Opens in a new window

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

Cheap Flights from Alamosa to Phoenix (ALS-PHX)

Prices were available within the past 7 days and start at $269 for one-way flights and $397 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Nov 4 - Tue, Nov 18
ALS
Alamosa
PHX
Phoenix
$397 Roundtrip, found 5 days ago
$397
Roundtrip
found 5 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Nov 4 from Alamosa to Phoenix, returning Tue, Nov 18, priced at $397 found 5 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Mon, Nov 10 - Tue, Nov 11
ALS
Alamosa
PHX
Phoenix
$406 Roundtrip, found 6 days ago
$406
Roundtrip
found 6 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Mon, Nov 10 from Alamosa to Phoenix, returning Tue, Nov 11, priced at $406 found 6 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Fri, Oct 31 - Tue, Nov 18
ALS
Alamosa
PHX
Phoenix
$407 Roundtrip, found 5 days ago
$407
Roundtrip
found 5 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Fri, Oct 31 from Alamosa to Phoenix, returning Tue, Nov 18, priced at $407 found 5 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Nov 11 - Wed, Nov 12
ALS
Alamosa
PHX
Phoenix
$415 Roundtrip, found 2 days ago
$415
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Nov 11 from Alamosa to Phoenix, returning Wed, Nov 12, priced at $415 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Wed, Nov 5 - Tue, Nov 18
ALS
Alamosa
PHX
Phoenix
$416 Roundtrip, found 5 days ago
$416
Roundtrip
found 5 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Wed, Nov 5 from Alamosa to Phoenix, returning Tue, Nov 18, priced at $416 found 5 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Nov 20 - Tue, Dec 9
ALS
Alamosa
PHX
Phoenix
$421 Roundtrip, found 14 hours ago
$421
Roundtrip
found 14 hours ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Nov 20 from Alamosa to Phoenix, returning Tue, Dec 9, priced at $421 found 14 hours ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Nov 11 - Wed, Nov 12
ALS
Alamosa
PHX
Phoenix
$424 Roundtrip, found 6 days ago
$424
Roundtrip
found 6 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Nov 11 from Alamosa to Phoenix, returning Wed, Nov 12, priced at $424 found 6 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Wed, Nov 5 - Wed, Nov 19
ALS
Alamosa
PHX
Phoenix
$425 Roundtrip, found 5 days ago
$425
Roundtrip
found 5 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Wed, Nov 5 from Alamosa to Phoenix, returning Wed, Nov 19, priced at $425 found 5 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Thu, Nov 13 - Tue, Nov 18
ALS
Alamosa
PHX
Phoenix
$430 Roundtrip, found 2 days ago
$430
Roundtrip
found 2 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Thu, Nov 13 from Alamosa to Phoenix, returning Tue, Nov 18, priced at $430 found 2 days ago
KEY LIME AIR DBA DENVER AIR CONNECTION
Tue, Nov 4 - Thu, Nov 20
ALS
Alamosa
PHX
Phoenix
$432 Roundtrip, found 6 days ago
$432
Roundtrip
found 6 days ago
Select KEY LIME AIR DBA DENVER AIR CONNECTION flight, departing Tue, Nov 4 from Alamosa to Phoenix, returning Thu, Nov 20, priced at $432 found 6 days ago

Alternative airports near Phoenix

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

Select flight to Sky Harbor Intl. PHX. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $407
PHX
Sky Harbor Intl.
CheapestClosest
Average driving time to city center10 min
Flights from $407

Frequently asked questions

How much does a flight from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX) cost?
Lock in a cheap one-way flight from $269 or cheap return flight from $397 from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX)?
November is the least expensive month to fly from ALS to PHX. Avoiding peak travel times is often the key to finding better deals on flights.
What is the cheapest airline that flies from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from ALS to PHX. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX)?
There are no daily nonstop flights from San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from ALS to PHX?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*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 Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX)?
To avoid possible delays on the San Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**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 Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX) last-minute?
Booking your ticket from ALS to PHX just before your journey is usually more expensive. But if there's some wiggle room with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book an ALS to PHX flight and hotel package?
Securing an ALS to PHX flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our impressive range of stays and then add car rentals, activities and flights 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 Luis Valley Regional Airport (ALS) to Sky Harbor Intl. Airport (PHX)?
If you reserved your ALS to PHX flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you'd like more information.

Travel information

Origin airport
San Luis Valley Regional
Destination airport
Sky Harbor Intl.
Airlines serving
KEY LIME AIR DBA DENVER AIR CONNECTION
Roundtrip price
$397
Distance
442 mi

Book with confidence

Alamosa to Phoenix Flights

The cheapest times to fly from Alamosa to Phoenix

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

 

The best time to book a flight from Alamosa to Phoenix

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

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 Alamosa to Phoenix in 2025. You can also book with separate airlines for your outbound and return journeys, from $269 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 Alamosa to Phoenix 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 Alamosa to Phoenix 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.

 

Alamosa to Phoenix Flights

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*Available to One Key members.