For quick check-in at IAD, locate your airline’s counter by walking around the first row if not visible initially.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $229 (United Airlines) |
One-way from | $60 (Trip.com) |
Popular in | April |
Cheapest in | August |
Average price | $467 |
Good round-trip deal | $394 or less |
Good one-way deal | $215 or less |
Fly from
Fly to
Route
Depart
Return
Price
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
dom. 1/25
10:05 am-3:57 pm
1 stop7h 52m
Phoenix Sky Harbor Intl
sáb. 1/31
11:35 am-11:15 pm
2 stops9h 40m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
mar. 1/27
10:05 am-3:57 pm
1 stop7h 52m
Phoenix Sky Harbor Intl
sáb. 1/31
9:00 am-9:21 pm
2 stops10h 21m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
jue. 12/18
8:04 am-1:27 pm
1 stop7h 23m
Phoenix Sky Harbor Intl
mié. 12/24
12:43 pm-11:31 pm
1 stop8h 48m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
mié. 1/28
4:45 pm-10:26 pm
1 stop7h 41m
Phoenix Sky Harbor Intl
vie. 2/13
1:55 pm-10:02 pm
1 stop6h 07m
Washington, D.C.Phoenix
IAD - PHX
IADPHX
Washington, D.C. Dulles Intl
dom. 1/18
4:30 pm-7:50 pm
Nonstop5h 20m
Phoenix Sky Harbor Intl
mar. 1/27
6:00 am-3:50 pm
1 stop7h 50m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
jue. 12/18
6:15 am-12:27 pm
1 stop8h 12m
Phoenix Sky Harbor Intl
dom. 12/21
7:40 pm-5:24 am
1 stop7h 44m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
dom. 12/21
5:19 pm-10:58 pm
1 stop7h 39m
Phoenix Sky Harbor Intl
jue. 12/25
12:45 am-9:48 am
1 stop7h 03m
Washington, D.C.Phoenix
IAD - PHX
IADPHX
Washington, D.C. Dulles Intl
mié. 2/18
12:38 pm-7:43 pm
1 stop9h 05m
Phoenix Sky Harbor Intl
mar. 2/24
12:01 pm-11:10 pm
1 stop9h 09m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
sáb. 1/3
6:00 am-12:09 pm
1 stop8h 09m
Phoenix Sky Harbor Intl
lun. 1/12
2:42 pm-11:15 pm
1 stop6h 33m
BaltimorePhoenix
BWI - PHX
BWIPHX
Baltimore/Washington
vie. 3/6
6:38 pm-8:39 am
1 stop16h 01m
Phoenix Sky Harbor Intl
dom. 3/8
7:47 pm-5:36 pm
2 stops18h 49m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
To ensure you get the cheapest price possible for a flight from Washington, D.C. to Phoenix Sky Harbor Intl Airport, you should look to book at least 58 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, December is the cheapest month in which you can book a flight from Washington, D.C. to Phoenix Sky Harbor Intl Airport (average of $89). Flying from Washington, D.C. to Phoenix Sky Harbor Intl Airport in June is currently the most expensive (average of $250). 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.
Unlike in the evening, when flights are generally more expensive, you can save up to 15% on flights from Washington, D.C. to Phoenix Sky Harbor Intl Airport by exploring options for tickets at noon.
Travelers seeking maximum savings on their Washington, D.C. to Phoenix Sky Harbor Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from WAS to PHX are scheduled on a Wednesday (12 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).
Denver (DEN) – chosen by Cheapflights users on 59% of 1-stop itineraries from Washington, D.C. to Phoenix Sky Harbor Intl Airport on Cheapflights.
Denver (DEN) is the most affordable 1-stop option, with an average round-trip price of $216.
Flights via Dallas (DAL) have the shortest average one-way travel time for 1-stop routes: 6h 30m.
Flights via Dallas (DAL) offer the fastest connection on this route, with an average layover time of 0h 48m.
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
Comfort
Boarding
Food
Crew
Entertainment
Overall
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$210 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$131 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$226 | Average$424 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$252 | Average$403 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$258 | Average$417 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$276 | Average$335 | FlexibilityNo cancel fee | On-timeN/A |