Cheap Flights From Sky Harbor Intl. (PHX) To Washington Dulles Intl. (IAD)

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Cheapest Flights from Phoenix (PHX) to Washington (IAD)

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $585 round trip and CA $209 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Sep. 18 - Sun, Sep. 21
PHX
Phoenix
IAD
Washington
CA $585 Roundtrip, found 6 days ago
CA $585
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Thu, Sep. 18 from Phoenix to Washington, returning Sun, Sep. 21, priced at CA $585 found 6 days ago

Frequently asked questions

Are there direct flights from Phoenix Sky Harbor Intl. Airport to IAD?
If you want to get stuck into your plans in Sterling, look into United Airlines. They offer nonstop services from Sky Harbor Intl. Airport (PHX) to IAD.
What airlines fly from Phoenix Sky Harbor Intl. Airport to Washington Dulles Intl. Airport (IAD)?
Want to fly direct from Phoenix to Sterling? You're in luck. United Airlines offers as many as 30 flights each month and is a popular choice with many savvy travelers.
What is the best day to buy a plane ticket?
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.
What are the cheapest days to fly?
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.
How far in advance can you book a flight?
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.

Popular Flight Routes from Phoenix (PHX)

Travelers at PHX love to visit these top cities. Roam to the top destinations from Phoenix (PHX) today with the cheap prices from Travelocity!

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington(IAD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.