Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5
Due to coronavirus (COVID-19) travel advisories, some destinations may be unavailable for certain dates. Find out more.

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights


Amazing United PHX to IAD Flight Deals

The cheapest flights to Washington Dulles Intl. found within the past 7 days were $265 round trip and one way. Prices and availability subject to change. Additional terms may apply.



FAQs about United Airlines Flights from PHX to IAD

What terminal is United Airlines at Phoenix Sky Harbor Airport?

If you're flying between Phoenix, AZ (PHX-Sky Harbor Intl.) and Washington, DC (IAD-Washington Dulles Intl.) with United Airlines, you're likely to be leaving from terminal 3. Your airline should be able to tell you which terminal you'll be arriving at.

Are there United Airlines non-stop flights from PHX to IAD?

Direct flights are available for booking with United Airlines, which means you'll be able to travel from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) in the shortest possible time. Those inspirational vacation experiences you're chasing are a single flight away.

How long is an United Airlines flight from PHX to IAD?

Take in a movie or two, listen to some music or just put your seat back and take it easy. Whatever you prefer, find a way to entertain yourself during the 4 hours and 55 minutes that it takes to get from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.) with United Airlines.

What type of aircraft does United Airlines fly from PHX to IAD?

Reserved a seat with United Airlines between PHX and IAD? The Boeing 737-800 and the Airbus A320 are the two airplane models that commonly operate on this air route.

How many direct and indirect flights does United Airlines fly from PHX to IAD?

United Airlines currently operates approximately 2 flights every day from Phoenix, AZ (PHX-Sky Harbor Intl.) to Washington, DC (IAD-Washington Dulles Intl.).

If I am not able to travel due to COVID-19, can I change my booking to a later date?

For more info about changing your flight to Washington, DC (IAD-Washington Dulles Intl.), please visit our Customer Service Portal.

What is the best day to buy a plane ticket?

This just in! Airfares offered on Tuesdays tend to be the cheapest, according to flight demand on Travelocity in 2019. Wednesday and Friday prices are also good, but you may want to prepare your budget if booking on a Monday, as data shows the start of the week is when prices are generally at their highest.

What are the cheapest days to fly?

Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2019, flights departing on a Tuesday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.

How far in advance can you book a flight?

Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity 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 2019 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 1-2 weeks prior to their travel dates.

How can I save money on airline tickets?

We'll let you in on a secret...You can save big on flights if you mix and match your airlines and fare types. In fact, travelers who booked flights on Travelocity in 2019 saved nearly 50% when their return flights consisted of two different airlines or fare types.

*According to flight demand on Travelocity.com from January to December 2019. Savings are subject to change based on departure location, date and destination.

Carrier Flight Depart PHX Arrive IAD Thu
1/21
Fri
1/22
Sat
1/23
Sun
1/24
Mon
1/25
Tue
1/26
Wed
1/27
Stops
UA 316 10:30 am 04:32 pm Check fare Check fare - Check fare Check fare Check fare Check fare 0 stop(s)
UA 563 11:59 pm 05:59 am - Check fare - - - - - 0 stop(s)

Travelers ❤️ These 🏨

Hyatt Regency Dulles
Hyatt Regency Dulles
4.0 out of 5.0 2300 Dulles Corner Blvd, Herndon, VA
$85
4.1/5 (26 reviews)

When I arrived no one helped me with the bags and I had to put my two bags up alone

Reviewed on Oct 14, 2020
This hotel features a restaurant, an indoor pool, and a bar/lounge. Traveling on business? Take advantage of the 17 conference rooms, 24-hour business center, ...
Washington Dulles Airport Marriott
Washington Dulles Airport Marriott
3.5 out of 5.0 45020 Aviation Dr, Sterling, VA
$87
4.5/5 (15 reviews)

nnnnnmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm

Reviewed on Dec 17, 2020
This smoke-free hotel includes 2 restaurants, an indoor pool, and a 24-hour fitness center. Traveling on business? Take advantage of the 11 conference rooms, ...
The Westin Washington Dulles Airport
The Westin Washington Dulles Airport
4.0 out of 5.0 2520 Wasser Terrace, Herndon, VA
$71
3.9/5 (12 reviews)

The restaurant was excellent, rooms were clean though could use more outlets.

Reviewed on Feb 12, 2020
This hotel features a restaurant, a 24-hour fitness center, and a bar/lounge. Traveling on business? Take advantage of the 16 conference rooms, 24-hour business ...

*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.