$137 Cheap Flights to Alamosa, CO

Flights to Alamosa at a glance

Booking a flight to Alamosa is easy, with several airlines providing a range of options. Explore available flights to Alamosa today, compare journey times, and select the best choice to fit your travel plans as you discover the city's iconic attractions and neighborhoods.

• Major airport in Alamosa: San Luis Valley Regional Airport (ALS)
• Flights per week: 37 flights arriving at Alamosa airport
• Number of airlines that fly to Alamosa: around 4 carriers

Popular airport in Alamosa

Alamosa is a charming city that offers stunning scenery and thrilling outdoor adventures, making it an ideal destination for those seeking adventure vacations, skiing, and sports. The city is conveniently accessible via a major airport, with additional alternative airports near Alamosa available for travelers to consider.

• San Luis Valley Regional Airport (ALS): Nestled in Alamosa County, Colorado, this airport facilitates domestic travel to approximately five cities nationwide. Key carriers operating here include Key Lime DBA Denver Air Connection, United, and American Airlines, catering to various travel needs.

Top routes to Alamosa

• Denver (DEN) to Alamosa (ALS), with one-way tickets available from around $85
• Salt Lake City (SLC) to Alamosa (ALS), with one-way flights starting at around $200
• Dallas (DFW) to Alamosa (ALS), with one-way airfare from around $200
• Los Angeles (LAX) to Alamosa (ALS), with one-way flights starting at around $240
• Austin (AUS) to Alamosa (ALS), with one-way airfare from around $210

Cheapest routes to Alamosa

• Denver (DEN) to Alamosa (ALS), with affordable one-way prices from around $85
• Dallas (DFW) to Alamosa (ALS), with low one-way fares from around $200
• Salt Lake City (SLC) to Alamosa (ALS), with low-cost one-way tickets from around $200
• Austin (AUS) to Alamosa (ALS), with cheap one-way fares from around $210
• Los Angeles (LAX) to Alamosa (ALS), with budget one-way fares from around $240

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Alamosa

• Key Lime DBA Denver Air Connection: This airline operates flights to San Luis Valley Regional Airport (ALS), representing about 84% of arrivals in Alamosa. The typical one-way fare is roughly $110.
• United: United Airlines serves San Luis Valley Regional Airport (ALS), making up approximately 13% of Alamosa's arrivals. Expect one-way fares to be around $310.
• American Airlines: Operating to San Luis Valley Regional Airport (ALS), American Airlines accounts for about 2% of arrivals in Alamosa. The average one-way fare is close to $270.
• Delta: Delta Airlines offers flights to San Luis Valley Regional Airport (ALS), contributing around 2% of arrivals to Alamosa. The average cost for a one-way ticket is about $240.

Best time to fly to Alamosa

The most popular months for travelers to fly to Alamosa are January, March, and July, when peak temperatures in Alamosa can reach up to 66.4°F in July. If you prefer quieter travel, consider November, the least busy time to visit with temperatures around 34°F and typically the lowest average one-way fare (around $121), roughly 12% cheaper than the yearly average. Looking for additional cheaper months to fly? December, October, and May offer average one-way fares of around $128, making them good options for flexible travelers.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Alamosa

Getting some of the best deals on flights to Alamosa is all about timing and flexibility. Here are some key tips to help you save:

1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our Alamosa hotel and flight deals.
4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
5. Earn miles—you can earn airline miles when you book your Alamosa flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Alamosa

Alamosa welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Alamosa efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Alamosa, with options including free hotel shuttles and private rides, which can be arranged in advance.
• Car rental: Renting a car in Alamosa is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Alamosa on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay in and around Alamosa

• Sanford: Located 22 miles drive away from Alamosa, Sanford is a charming city that beckons outdoor enthusiasts and adventure seekers. Visitors can explore the stunning landscapes at nearby ski fields and resorts during the winter months. In warmer seasons, the Cumbres and Toltec Scenic Railroad offers a glimpse into the area’s rich history, while the Jack Dempsey Museum and Birthplace provides cultural insights. Families can enjoy the Antonito Town Park, perfect for eco-friendly activities and relaxation amidst nature.
• Waverly: Waverly is located in the area of Alamosa and serves as a delightful stop for travelers interested in nature and history. The Monte Vista National Wildlife Refuge is a serene preserve, ideal for bird-watching and leisurely strolls. For those seeking a taste of local education, Adams State University showcases a modern campus atmosphere, while the San Luis Valley Museum offers fascinating insights into the region’s past, making Waverly a great spot for cultural exploration.
• Mosca: Mosca is located 15 miles drive away from Alamosa and is renowned for its breathtaking scenery and outdoor adventures. Nature lovers can experience the awe-inspiring Great Sand Dunes National Park, where hiking and exploration await. For a touch of romance, Zapata Falls provides a picturesque waterfall setting, perfect for couples or peaceful retreats. The High Dune is a must-visit for stunning views and memorable sunrises, making Mosca a fantastic destination for those looking to connect with the great outdoors.

Tips for short-haul flights to Alamosa

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

• Pack light and skip checked bags—when flying with budget airlines, traveling with just a carry-on is often the most cost-effective option. Maximize your space by using mini toiletries, wearing your heaviest clothing, and coordinating your outfits. This strategy also allows you to avoid the wait at baggage claim upon arrival.
• Bring your own entertainment—many short-haul flights do not provide in-flight entertainment. To keep yourself entertained, download your favorite TV shows, movies, music, or podcasts ahead of time and consider bringing a book. Also, remember to fully charge your devices before you board.
• Arrive at the airport in plenty of time—for short or domestic flights, it’s advisable to arrive at least 1.5 to 2 hours before your departure, taking into account potential traffic and security lines.
• Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money at the airport.

Tips for long-haul flights to Alamosa

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

• Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines typically allow free seat selection once online check-in opens, which is generally 24–48 hours before your flight. Some airlines enable seat selection even earlier.
• Arrive at the airport in plenty of time—make sure to arrive at least 3 hours before departure for international flights to accommodate check-in, security, and immigration procedures.
• Relax at the airport—if you find yourself with extra time, take the opportunity to explore the shops, grab a coffee, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is commonly free and available.
• Adjust to the new time zone mid-flight—begin syncing your body clock by changing your watch and sleep schedule to align with your destination's time zone. Aim to sleep or stay awake during the flight according to the local time of your arrival to help minimize jet lag.

Tips to find the cheapest flights to Alamosa

The cheapest day to fly

Get started finding a cheap flight to Alamosa on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

The cheapest month to fly

October is the cheapest month to fly to Alamosa. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Alamosa. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Alamosa, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Alamosa

The lowest price for round-trip flights to Alamosa in 2026 starts from $269, while one-way tickets start from from $137. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Alamosa. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Alamosa

Denver Air Connection, American Airlines, United, Delta are just some of the airlines that can typically offer cheap tickets to Alamosa. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Alamosa and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Alamosa, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Alamosa. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Alamosa plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Alamosa

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Alamosa.

Stopover savings

The cheapest tickets to Alamosa are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Alamosa. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Alamosa for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Alamosa. Simply download the free Expedia app to your smart device and activate Alamosa flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Alamosa. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.