
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $246 (Kiwi.com) |
One-way from | $125 (Kiwi.com) |
Popular in | February |
Cheapest in | January |
Average price | $587 |
Good round-trip deal | $470 or less |
Good one-way deal | $221 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 3/10
11:55 pm-11:52 am
1 stop8h 57m
Washington, D.C. Dulles Intl
Tue 3/17
12:47 pm-5:35 pm
1 stop7h 48m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Wed 3/4
8:00 am-6:37 pm
1 stop8h 37m
Washington, D.C. Dulles Intl
Sat 3/7
5:25 pm-11:42 pm
1 stop8h 17m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 4/21
6:05 am-5:57 pm
1 stop8h 52m
Washington, D.C. Dulles Intl
Tue 4/28
6:00 am-11:40 am
1 stop8h 40m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 3/24
3:13 pm-12:27 am
1 stop6h 14m
Washington, D.C. Dulles Intl
Tue 3/31
3:35 pm-10:49 pm
1 stop10h 14m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 8/4
11:25 am-11:29 pm
1 stop9h 04m
Washington, D.C. Dulles Intl
Wed 8/12
7:25 am-12:07 pm
1 stop7h 42m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Fri 3/6
12:40 am-6:49 am
Nonstop4h 09m
Washington, D.C. Dulles Intl
Tue 3/10
12:50 pm-3:13 pm
Nonstop5h 23m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 3/17
3:13 pm-12:27 am
1 stop6h 14m
Washington, D.C. Dulles Intl
Sat 3/21
5:25 pm-9:54 pm
1 stop7h 29m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Tue 3/17
11:40 pm-6:50 am
Nonstop4h 10m
Washington, D.C. Dulles Intl
Tue 3/24
5:28 pm-7:47 pm
Nonstop5h 19m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Sat 6/27
11:55 pm-9:10 am
1 stop6h 15m
Washington, D.C. Dulles Intl
Sat 7/18
4:00 pm-11:02 pm
1 stop10h 02m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Thu 3/19
11:55 pm-11:52 am
1 stop8h 57m
Washington, D.C. Dulles Intl
Tue 3/24
12:47 pm-5:35 pm
1 stop7h 48m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*3 stars |
To ensure you get the cheapest price possible for a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 70 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Currently, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport (average of $146). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $257). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s typically best to fly out from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport in the evening. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
About 9% of weekly flights between Phoenix and Washington, D.C. have experienced delays in the past year, with the average delay time being 126 minutes.
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Over the last year, United Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.
Atlanta (ATL) – chosen by Cheapflights users on 67% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Washington, D.C. Dulles Intl Airport on Cheapflights.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $140.
Flights via Atlanta (ATL) have the shortest average one-way travel time for 1-stop routes: 7h 53m.
Flights via Atlanta (ATL) offer the fastest connection on this route, with an average layover time of 1h 50m.
Food
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Thomas,Dec 2025
SEA - DEN
Food
Overall
Boarding
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Overall
Boarding
Comfort
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Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Overall
Boarding
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Food
Overall
Boarding
Comfort
Crew
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$135 | Average$260 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$187 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$236 | Average$411 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$254 | Average$402 | FlexibilityNo cancel fee | On-time69% |