IAD - PHX
$288 - $439
|Popular in||December||High demand for flights, 14% potential price rise|
|Cheapest in||September||Best time to find cheap flights, 24% potential price drop|
|Round-trip from||$288||From Washington Dulles Intl to Sky Harbor International|
|One-way from||$132||One-way flight from Washington Dulles Intl to Sky Harbor International|
Departing on a Tuesday is a good option for securing a great price. You can expect to save up to 7% when planning your travel around this day of the week.
Travelers have found it’s best to book a flight 31 days in advance to save up to 11% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 31 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington Dulles Intl to Sky Harbor International 1-2 weeks in advance for as low as $86, or $92 for flights within the next 24 hours.
Our data shows that September tends to be the cheapest month to fly to Sky Harbor International from Washington Dulles Intl. Users have commonly found prices around $145 for the month, but tickets can be as low as $37. Due to multiple factors, prepare for potentially higher prices in March.