PHX has short security lines; expect waits under 10 minutes. Check live wait times online to choose the shortest lane.

Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $138 (Kiwi.com) |
One-way from | $68 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $394 |
Good round-trip deal | $367 or less |
Good one-way deal | $185 or less |
Fly from
Fly to
Route
Depart
Return
Price
PhoenixBaltimore
PHX - BWI
PHXBWI
Phoenix Sky Harbor Intl
Tue 1/27
6:45 am-3:04 pm
1 stop6h 19m
Baltimore/Washington
Sun 2/1
8:07 am-4:53 pm
1 stop10h 46m
PhoenixBaltimore
PHX - BWI
PHXBWI
Phoenix Sky Harbor Intl
Sat 1/24
11:35 am-11:15 pm
2 stops9h 40m
Baltimore/Washington
Tue 1/27
10:05 am-3:57 pm
1 stop7h 52m
PhoenixWashington, D.C.
PHX - IAD
PHXIAD
Phoenix Sky Harbor Intl
Fri 1/30
6:00 am-4:33 pm
1 stop8h 33m
Washington, D.C. Dulles Intl
Fri 2/6
8:53 pm-4:56 pm
2 stops46h 03m
PhoenixWashington, D.C.
PHX - DCA
PHXDCA
Phoenix Sky Harbor Intl
Fri 1/9
10:19 pm-9:51 am
1 stop9h 32m
Washington, D.C. Reagan-National
Sun 1/11
11:55 am-8:49 pm
1 stop10h 54m
PhoenixWashington, D.C.
PHX - DCA
PHXDCA
Phoenix Sky Harbor Intl
Thu 3/12
9:41 pm-8:01 am
1 stop7h 20m
Washington, D.C. Reagan-National
Mon 3/16
1:00 pm-8:22 pm
1 stop10h 22m
PhoenixWashington, D.C.
PHX - DCA
PHXDCA
Phoenix Sky Harbor Intl
Thu 3/19
9:41 pm-11:05 am
1 stop10h 24m
Washington, D.C. Reagan-National
Tue 3/24
1:00 pm-8:22 pm
1 stop10h 22m
PhoenixWashington, D.C.
PHX - DCA
PHXDCA
Phoenix Sky Harbor Intl
Tue 2/17
10:29 pm-11:00 am
1 stop10h 31m
Washington, D.C. Reagan-National
Wed 3/11
3:59 pm-9:49 pm
1 stop8h 50m
PhoenixWashington, D.C.
PHX - DCA
PHXDCA
Phoenix Sky Harbor Intl
Thu 2/26
9:17 am-9:59 pm
1 stop10h 42m
Washington, D.C. Reagan-National
Thu 3/12
2:00 pm-8:14 pm
1 stop9h 14m
PhoenixBaltimore
PHX - BWI
PHXBWI
Phoenix Sky Harbor Intl
Thu 2/26
7:00 am-4:38 pm
1 stop7h 38m
Baltimore/Washington
Tue 3/10
6:57 pm-11:46 pm
1 stop7h 49m
PhoenixBaltimore
PHX - BWI
PHXBWI
Phoenix Sky Harbor Intl
Tue 2/24
2:20 pm-11:44 pm
1 stop7h 24m
Baltimore/Washington
Mon 3/9
5:36 pm-9:54 pm
1 stop7h 18m
| 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 Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, November is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Washington, D.C. (average of $144). Flying from Phoenix Sky Harbor Intl Airport to Washington, D.C. in June is currently the most expensive (average of $197). 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.
A simple way to save on the total cost of your ticket is to fly from Phoenix Sky Harbor Intl Airport to Washington, D.C. in the evening. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight at noon.
Travelers seeking maximum savings on their Phoenix Sky Harbor Intl Airport to Washington, D.C. flight should consider departing on Sunday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Denver (DEN) – chosen by Cheapflights users on 42% of 1-stop itineraries from Phoenix Sky Harbor Intl Airport to Washington, D.C. on Cheapflights.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $140.
Flights via Kansas City (MCI) have the shortest average one-way travel time for 1-stop routes: 6h 10m.
Flights via Kansas City (MCI) offer the fastest connection on this route, with an average layover time of 0h 58m.
About 11% of weekly flights between Phoenix and Washington, D.C. have experienced delays in the past year, with the average delay time being 128 minutes.
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening 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 9% of flights being delayed.
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Crew
Food
Overall
Comfort
Boarding
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$138 | Average$257 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$142 | Average$267 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$186 | Average$385 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$188 | Average$344 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$224 | Average$366 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$231 | Average$418 | FlexibilityNo cancel fee | On-time63% |