Cheap Flights From Washington Dulles Intl. (IAD) To Denver Intl. (DEN)

United Airlines and Southwest Airlines are among the airlines that operate nonstop flights from Dulles Intl. Airport to Denver Airport. If you’re keen to get to your destination fast, these are the airlines for you.

If you want to get to Denver from Sterling, there are several airlines advertising direct flights. One of the most popular is United Airlines (UA), which operates 199 flights on this route each month. If that’s not enough for you, look up Southwest Airlines (WN). This airline has 47 flights every month. Between the two, we’re sure you’ll find a deal that’s perfect for you.

Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you’re looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you’re browsing flight deals.

Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.

Here’s the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.