Title: Cheap Flights from Alamosa to Denver (ALS to DEN) - Expedia.co.uk ![Denver Colorado downtown with City Park](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178254/7cc57818-0302-43a8-831e-86e04b8cc6a7.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # Cheap Flights from Alamosa (ALS) to Denver (DEN) - [Return](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Alamosa, CO (ALS-San Luis Valley Regional) to Denver International Airport (DEN) - ![Denver Air Connection](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KG.svg) Denver Air Connection [](https://www.expedia.co.uk/Flights-Search?leg1=from:als,to:den,departure:10/11/2025TANYT&leg2=from:den,to:als,departure:17/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KG"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Find the cheapest month to fly from Alamosa (ALS) to Denver (DEN) ### January is typically the cheapest month to fly From £118 - £170 per traveller. 0 Flight from Alamosa to Denver route information | Origin airport | San Luis Valley Regional | | --- | --- | | Destination airport | Denver Intl. | | Distance | 285 km | ## Compare flights from Alamosa to Denver easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Alamosa to Denver. Operating between them flights per day, airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Luis Valley Regional to Denver Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from San Luis Valley Regional (ALS) to Denver Intl. (DEN) The easiest way to view the best deals on flights from Alamosa to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Luis Valley Regional to Denver Intl. start at just and range up to .   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Alamosa and Denver - booking your flight during , the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Alamosa to Denver flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Luis Valley Regional to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from San Luis Valley Regional Airport to DIA airport? > Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip journeys between ALS and DIA airport start from . Make your booking today to score the best price for your adventure. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from San Luis Valley Regional Airport (ALS) to Denver Intl. Airport (DEN)? > Every airline has different terms and conditions. If you decide to cancel your escape, head to our [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from San Luis Valley Regional Airport to DIA airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for ALS to DEN flights, you'll see a "no change fees" filter for you to select. ### How many hours is the flight from San Luis Valley Regional Airport to Denver Intl. Airport (DEN)? > Put your seat back, pick a movie and 55 minutes will fly by before you know it. That's how long it takes to travel to DEN from San Luis Valley Regional Airport (ALS). ### How far is the flight from ALS to Denver Airport? > It's just 290 kilometres between San Luis Valley Regional Airport (ALS) and Denver Intl. Airport (DEN). Chances are you'll spend more time getting to and from the airport than you will actually flying! ### Which airlines fly direct from San Luis Valley Regional Airport to DEN? > A popular choice with many travellers, Denver Air Connection (KG) offers 52 monthly flights from San Luis Valley Regional Airport (ALS) to Denver Intl. Airport (DEN). Pick the one that fits with your travel plans and book your seat today. ### Are San Luis Valley Regional Airport (ALS) to Denver Intl. Airport (DEN) flight tickets cheaper when they're purchased at the last minute? > Flight prices from San Luis Valley Regional Airport to Denver Airport are available up to 12 months prior to departure on Expedia. And although you may occasionally pick up great last-minute deal, it's never something you can count on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid being wedged in the dreaded middle seat! 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