Washington to Phoenix DCA, IAD → PHX
Ronald Reagan National Airport (DCA), Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX)
The cheapest return found recently is $326 with Frontier Airlines, 29 Oct – 7 Nov, found 4 days ago. The cheapest one-way found recently is $132 with Frontier Airlines, 22 Nov, found 6 days ago.
Return
The cheapest return fare on each of 3 departure dates is usually $304 to $334.
Cheapest return found recently
$326
29 Oct – 7 Nov · Frontier Airlines
Ronald Reagan National Airport (DCA) → Phoenix Sky Harbor International Airport (PHX)
Leaves 1:00 p.m. · Return leaves 7:15 a.m. · 17 h 26 min of travel, both ways together
out 1 stop, back 1 stop
found 4 days ago
Cheapest nonstop return
$567
29 Oct – 7 Nov · United Airlines
Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX)
Leaves 12:55 p.m. · Return leaves 8:50 a.m. · 9 h 26 min of travel, both ways together
out nonstop, back nonstop
found 4 days ago
Found recently, and the cheapest we hold
$326 29 Oct – 7 Novfound 4 days agoSee prices for these dates
$282 8 Dec – 15 Decfound 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $213 to $282.
At $326, the cheapest return found recently is above that range.
25 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 3 departure dates from 23 Oct to 8 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 9-night return fares leaving within 3 days of 29 Oct to compare.
Every date we hold
6 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 23 Oct – 28 Oct | $342 | Frontier Airlines | Ronald Reagan National Airport (DCA) → Phoenix Sky Harbor International Airport (PHX) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 29 Oct – 7 Nov | $326 | Frontier Airlines | Ronald Reagan National Airport (DCA) → Phoenix Sky Harbor International Airport (PHX) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 8 Dec – 15 Dec | $282 | Frontier Airlines | Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $282.
Airlines on the cheapest dates: Frontier Airlines.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $134 to $140.
Cheapest one-way found recently
$132
22 Nov · Frontier Airlines
Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX)
Leaves 1:09 p.m. · 24 h 16 min trip
1 stop
found 6 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$132 22 Novfound 6 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 10 days, 4 Oct to 18 Oct, the cheapest one-way we saw each day was $132 to $269.
At $132, the cheapest one-way found recently is at the low end of that range.
10 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 20 Nov to 22 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 22 Nov, and none is cheaper.
Every date we hold
4 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Nov | $143 | Frontier Airlines | Ronald Reagan National Airport (DCA) → Phoenix Sky Harbor International Airport (PHX) | 1 stop | found 6 days ago | Open this trip |
| 21 Nov | $136 | Frontier Airlines | Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX) | 2 stops | found 6 days ago | Open this trip |
| 22 Nov | $132 | Frontier Airlines | Washington Dulles International Airport (IAD) → Phoenix Sky Harbor International Airport (PHX) | 1 stop | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Frontier Airlines.
Premium cabin fares from Washington to Phoenix
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 29 Oct – 7 Nov in another cabin: Premium economy · Business · First
Today's prices for 22 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Washington to Phoenix?
Return
Fares 14 to 29 days before departure were typically 31% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $344 | $342 | +44% | 8 |
| 7–13 days | $342 | $326 | +43% | 7 |
| 14–29 days | $239 | $239 | Cheapest seen | 14 |
| 30–59 days | $251 | $213 | +5% | 21 |
| 60–89 days | $281 | $213 | +17% | 8 |
One-way
Not enough history yet: in 10 days of one-way prices, 4 Oct to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Baltimore → Phoenix
57 km from Washington
$357
$31 more than flying from Washington
29 Oct – 7 Nov · BWI → PHX · out 1 stop, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Baltimore → Phoenix
57 km from Washington
$98
$34 less than flying from Washington
17 Nov · BWI → PHX · stops unknown
found yesterday
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 29 Oct – 7 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work