Cheap Flights from Seattle (SEA) to Alamosa (ALS)

Flights from Seattle (SEA) to Alamosa (ALS)
Origin airport
Seattle - Tacoma Intl.
Destination airport
San Luis Valley Regional
Distance
1082 mi

Seattle to Alamosa Flights

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

 

The best time to book a flight from Seattle to Alamosa

Sunday is one of the best days to book for cheap flights from Seattle 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 Seattle 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 Seattle to Alamosa in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Seattle 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 Seattle 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 Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS) cost?
Discover the latest flight deals from SEA 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 SEA to ALS?
The cheapest flights from SEA 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 SEA to ALS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SEA to ALS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) 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 our filter tool. Enter your travel details and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to ALS?
You'll typically 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 Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS)?
Book a flight from Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this are on average 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 Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS) last-minute?
Last-minute bookings from SEA to ALS are generally more expensive. For the lowest prices, start searching for flights as soon as possible. That being said, if you're flexible with your travel dates, you may score a cheap ticket right before you leave.
Is it cheaper to book a SEA to ALS flight and hotel package?
Compared with arranging flights and hotels separately, booking a SEA to ALS flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the stress out of planning your trip. Just secure your flights and choose from our extensive range of hotels, then personalize your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to San Luis Valley Regional Airport (ALS)?
It's generally possible to cancel or reschedule your SEA to ALS flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.