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$137 Cheap Flights to San Luis, CO

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Popular airlines to San Luis

How much is the cheapest flight to San Luis?

Prices were available within the past 7 days and start at $137 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION
KEY LIME AIR DBA DENVER AIR CONNECTION
United
American Airlines
Delta

What you need to know for your flight to San Luis

Flights to San Luis at a glance

Traveling to San Luis is easy with a variety of airlines providing numerous flight options. Explore the journey times to find the most convenient choice for your schedule, allowing you to fully enjoy the city’s renowned attractions and vibrant neighborhoods.

  • Major airports near San Luis: San Luis Valley Regional Airport (ALS), Pueblo Memorial Airport (PUB)
  • Closest airport to San Luis: San Luis Valley Regional Airport, ALS (around 30 miles)
  • Flights per week: 45 flights arriving across San Luis airports
  • Number of airlines that fly to San Luis: around 5+ carriers

Popular airports near San Luis

San Luis is an inviting city perfect for outdoor enthusiasts and adventure seekers, offering stunning scenery for family vacations and skiing. Accessible via two major airports, travelers can easily plan their journey to experience all that San Luis has to offer.

  • San Luis Valley Regional Airport (ALS): Situated in Alamosa County, Colorado, approximately 30 miles from San Luis, this airport provides access to several domestic routes linking around five U.S. cities. Key airlines operating here include Key Lime DBA Denver Air Connection, United, and American Airlines.
  • Pueblo Memorial Airport (PUB): Found in Pueblo County, Colorado, roughly 90 miles from San Luis, this airport offers domestic flights. Notable carriers at this location are Key Lime DBA Denver Air Connection and Southern Airways.

Top routes to San Luis

  • Denver (DEN) to San Luis (ALS/PUB), with one-way flight options from around $55
  • Salt Lake City (SLC) to San Luis (ALS), with one-way airfare from around $200
  • Dallas (DFW) to San Luis (ALS), with one-way fares starting at around $200
  • Los Angeles (LAX) to San Luis (ALS), with one-way flights starting at around $240
  • Austin (AUS) to San Luis (ALS), with one-way tickets available from around $210

Cheapest routes to San Luis

  • Denver (DEN) to San Luis (ALS/PUB), with low-cost one-way tickets from around $55
  • Dallas (DFW) to San Luis (ALS), with low one-way fares from around $200
  • Salt Lake City (SLC) to San Luis (ALS), with low one-way fares from around $200
  • Austin (AUS) to San Luis (ALS), with low one-way fares from around $210
  • Los Angeles (LAX) to San Luis (ALS), with cheap 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 San Luis

  • Key Lime DBA Denver Air Connection: This airline connects travelers to San Luis Valley Regional Airport (ALS) and Pueblo Memorial Airport (PUB), handling about 85% of arrivals to San Luis. The one-way fare averages around $90.
  • United: Operating flights to San Luis Valley Regional Airport (ALS), United makes up roughly 11% of arrivals in San Luis. Travelers can expect an average one-way fare of about $310.
  • Southern Airways: This carrier services Pueblo Memorial Airport (PUB) and accounts for approximately 2% of arrivals to San Luis. The typical one-way fare is around $70.
  • American Airlines: Flying into San Luis Valley Regional Airport (ALS), American Airlines represents about 2% of arrivals to San Luis, with an average one-way fare near $270.
  • Delta: Serving San Luis Valley Regional Airport (ALS) as well, Delta comprises around 1% of arrivals to San Luis. The average one-way fare is approximately $240.

Best time to fly to San Luis

The most popular months for travelers to fly to San Luis are January, March, and July, when peak temperatures in San Luis can reach up to 64.9°F in July. If you prefer quieter travel, consider November, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 33.1°F. For better deals, November and December usually offer the lowest average one-way fares around $118, roughly 10% cheaper than the yearly average. Looking for additional cheaper months to fly? September and October offer average one-way fares of around $125, making them good options for flexible travelers.

calendar iconMonthtemperature iconTemperaturerain iconPrecipitationmostly cloudy iconCloudinesscrowd level iconDemandprice iconAverage one-way Fare
January20.3°F (-6.5°C)No Rain (Dry)Mostly SunnySlightly High$140
February23.9°F (-4.5°C)No Rain (Dry)Mostly SunnySlightly Low$136
March33.4°F (0.8°C)No Rain (Dry)Mostly SunnySlightly High$161
April41.4°F (5.2°C)No Rain (Dry)SunnyAverage$132
May50.5°F (10.3°C)No Rain (Dry)SunnyAverage$126
June62.1°F (16.7°C)No Rain (Dry)SunnyAverage$132
July64.9°F (18.3°C)Light RainMostly SunnySlightly High$139
August63.0°F (17.2°C)No Rain (Dry)SunnyAverage$135
September57.4°F (14.1°C)No Rain (Dry)SunnyAverage$125
October45.0°F (7.2°C)No Rain (Dry)SunnySlightly Low$125
November33.1°F (0.6°C)No Rain (Dry)SunnySlightly Low$118
December22.3°F (-5.4°C)No Rain (Dry)Mostly SunnyAverage$118

*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 San Luis

Getting some of the best deals on flights to San Luis 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 San Luis 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 San Luis flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in San Luis

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

  • Public transportation: From Pueblo Memorial Airport, Pueblo Transit Center, a bus station, is located about 8.2 miles away by car, providing a convenient option for travelers heading into the city.
  • Hotel transfer: Transfers offer a convenient way to reach your hotel in San Luis, with private rides that can be arranged in advance.
  • Car rental: Renting a car in San Luis is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in San Luis 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 San Luis

  • Viejo San Acacio: Viejo San Acacio is located in the area of San Luis and offers a serene atmosphere perfect for relaxation and romantic getaways. Nestled amidst stunning desert and mountain landscapes, this village invites travelers to explore its cultural and natural attractions. Key points of interest include the Shrine of the Stations of the Cross, an inspiring place of worship, and the Fort Garland Museum, where history enthusiasts can delve into the local past. Families will enjoy Mother Mary's Garden, a beautiful desert garden that provides a lovely outdoor setting for all ages.
  • Garcia: Garcia is located in the area of San Luis and features a charming village vibe with a focus on family-friendly experiences. Visitors can appreciate the natural beauty at Cabresto Park, a great spot for outdoor activities. The Shrine of the Stations of the Cross serves as a significant cultural site, while Mother Mary's Garden offers a delightful desert garden experience for families. Garcia combines culture and nature, making it an inviting destination for those looking to unwind and reconnect with the outdoors.
  • San Pablo: San Pablo is located in the area of San Luis and is a haven for outdoor adventurers and nature lovers. This village is surrounded by stunning scenery, including a national state park, a monument, and a picturesque lake. Visitors can engage in a variety of activities such as skiing and exploring recreation parks. The Shrine of the Stations of the Cross and the Fort Garland Museum add cultural depth to your visit, while Mother Mary's Garden provides a charming outdoor retreat for families. San Pablo is an ideal choice for those seeking adventure and breathtaking landscapes.

Tips for short-haul flights to San Luis

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, it’s often more economical to travel with just a carry-on. Maximize space by using travel-sized toiletries, wearing your heaviest clothing, and planning your outfits wisely. This approach also helps you avoid the hassle of waiting at baggage claim upon arrival.
  • Bring your own entertainment—many short-haul flights may lack in-flight entertainment options. Download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book to keep yourself occupied. Remember to charge your devices fully before you board.
  • Arrive at the airport in plenty of time—even for short or domestic flights, it’s advisable to get to the airport at least 1.5 to 2 hours before your flight, allowing for potential traffic delays and security lines.
  • Bring your own snacks and water—packing snacks and a refillable water bottle can help you stay hydrated and save money at the airport.

Tips for long-haul flights to San Luis

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

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

Frequently asked questions

What month is the cheapest to fly to San Luis?
Plan your trip for October if you're hoping to get a good price on your fare. It's the cheapest month to fly to San Luis. If possible, avoid traveling during peak periods such as major public holidays or events.
Which US cities have the cheapest flights to San Luis?
Get cheap flights to San Luis from Denver, Dallas and Phoenix. These cities generally offer the best fares to this destination. But keep in mind that stopovers, seasonality and demand also influence rates, so stay flexible and book when prices are right.
Which US cities fly direct to San Luis?
You can fly to San Luis without a stopover from 9 US destinations. To find a nonstop route, check "Direct flights only" when organizing your flights to San Luis on Expedia. Then, explore your options and find the best departure out of any of these cities:
  • Denver
  • Dallas
  • Phoenix
  • Las Vegas
  • Chicago
How to find a cheap flight to San Luis?
Book early to increase your chances of finding cheap flights to San Luis. Also, consider traveling during off-peak months like January and October. If you jet off on a Thursday, you'll save an average of 16% compared to departing on a Sunday.* Save time searching every day and create a price alert on the Expedia app. We'll send you a notification when fares drop.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to San Luis?
Staying flexible about your plans might help you to find last-minute deals on cheap flights to San Luis. To see all the available options, consider exploring different ticket types, tweaking your San Luis vacation dates, jetting out of an alternative airport or using another carrier.
How far in advance should I book a flight to San Luis?
Secure your flight to San Luis two to four months ahead if you're taking off from an international destination. For domestic travel, the recommendation is around 28 days in advance. Cheaper fares and a wider variety of departure dates, schedules and seating options are just a few of the benefits of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to San Luis?
You can usually get cheap flights to San Luis on Sundays. You'll save around 8% on average compared to booking on a Friday, which is typically the most expensive day to buy tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to San Luis?
When it's time to get away, these airlines will make journeying to San Luis super easy:
  • United Airlines - 394 flights to San Luis each month, including 394 flights to Colorado Springs Airport (COS) per month.
  • American Airlines - 160 flights to San Luis each month, including 160 flights to Colorado Springs Airport (COS) per month.
Where do you fly into San Luis?
The main airport to fly to San Luis is San Luis Valley Regional Airport (ALS). There's also the option to touch down at Taos, NM (TSM-Taos Regional) when flying to San Luis.
How far is the airport from central San Luis?
If you're arriving at San Luis Valley Regional Airport (ALS), you'll be roughly 30 mi northwest of central San Luis.
Can I save money by booking a San Luis trip package?
It's possible to save hundreds of dollars if you secure a San Luis flight and hotel package deal on Expedia. And you'll save time and hassle by having all your travel arrangements in the same place. Try bundling flights and hotels with add-ons like activities and tours for your own personalized San Luis vacation.
Can I change or cancel my flight to San Luis?
It's often possible to cancel or change your flight to San Luis. Many airlines allow you to cancel your flights for free within 24 hours of booking. However, some flights are non-refundable, and airlines may offer you credit for future flights instead of a direct refund. To reserve cheap flights to San Luis with flexible change policies, check "No cancel fee" or "Changes included" when you search. Want more details? Visit our Customer Service Portal.

*Flight schedules are subject to change.

*Available to One Key members.

Book with confidence

Tips to find the cheapest flights to San Luis

The cheapest day to fly

Get started finding a cheap flight to San Luis 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 San Luis. 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 San Luis. 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 San Luis, 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 San Luis

The lowest price for round-trip flights to San Luis in 2026 starts from 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 San Luis. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to San Luis

KEY LIME AIR DBA DENVER AIR CONNECTION, United, Delta, American Airlines are just some of the airlines that can typically offer cheap tickets to San Luis. 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 San Luis and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for San Luis, 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 San Luis. 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 San Luis 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 San Luis

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 San Luis.

Stopover savings

The cheapest tickets to San Luis are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to San Luis. 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 San Luis 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 San Luis. Simply download the free Expedia app to your smart device and activate San Luis 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 San Luis. 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.

Tips to find the cheapest flights to San Luis

Travel information

Destination airport
San Luis Valley Regional
Destination airport IATA code
ALS
Destination city name
Alamosa
Roundtrip price
$268

Trending flights to San Luis

Prices were available within the past 7 days and start at $137 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

KEY LIME AIR DBA DENVER AIR CONNECTION

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