Cheap Flights from Washington (IAD) to Alamosa (ALS)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save on select hotels after you book a flight*
  • trophy illustration

    Find the right fit

    We search billions of combinations of flights to help you find your next adventure

Frequently asked questions

Is it cheaper to buy a plane ticket from Dulles Intl. Airport to San Luis Valley Regional Airport last minute?
Booking your journey from Dulles Intl. Airport to ALS last minute could save you some dough if you're lucky to find a terrific deal. However, tickets generally don't get cheaper as the date of departure nears. If you wait, flights could also be sold out or the best seats long gone. If you'd rather err on the side of caution, book well in advance of the date you want to leave. In fact, some of the best deals are available on Expedia up to 12 months in advance. If your preferred airline hasn't released tickets yet, check back regularly as offers are updated on Expedia all the time.
What airports do you fly into for Alamosa from Washington?
San Luis Valley Regional Airport (ALS) is the main terminal where Washington to Alamosa flights arrive. It's situated approximately 3 kilometers south of the center of Alamosa. You'll land spectacular deals on flights, hotels and activities when booking your Alamosa trip with Expedia.
Can I change the date of my flight from Dulles Intl. Airport to San Luis Valley Regional Airport?
Plans don't always work out, so Expedia is here to help make amending your trip as easy as possible. First, access your IAD to San Luis Valley Regional Airport itinerary through the Expedia Trips portal and browse the ticket rules and conditions regarding changes. If you purchased your airfare in the last 24 hours, some carriers will let you cancel without charge and organize new flights. If you booked your fare more than 24 hours ago, connect with us via our Customer Service portal to find out your options.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
San Luis Valley Regional
Distance
2464 km

Book with confidence

Explore a world of travel with Expedia