Dulles (IAD) to Phoenix (PHX)
Flight time
≈ 4h 42m
Bearing
270° W
Dulles (IAD) to Phoenix (PHX) is 1,952 miles (3,141 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–PHX
Filed traffic dataIn May 2026, United Airlines operated the most departures, one of 3 carriers flying nonstop IAD–PHX; the Boeing 737 MAX 9 was the most common aircraft at 53% of departures; flights ran 87% full.
Departures
191
May 2026
Seats
33,601
both directions
Passengers
29,382
both directions
Load factor
87.4%
RPM ÷ ASM
Who flies IAD–PHX?
United Airlines operated the most nonstop IAD–PHX departures in May 2026 (128), one of 3 carriers on the route.
- UA
128 departures · 22,652 seats
Share of departures67.0%87.5%
Load
- WN
62 departures · 10,812 seats
Share of departures32.5%87.8%
Load
- MX
1 departures · 137 seats
Share of departures0.5%40.2%
Load
What plane flies IAD–PHX?
In May 2026, the Boeing 737 MAX 9 flew 53% of IAD–PHX departures — more than any other aircraft type.
- Boeing 737 MAX 9
101 departures · 88.3% load
52.9% - Boeing 737 MAX 8
64 departures · 86.8% load
33.5% - Boeing 737-800
17 departures · 89.5% load
8.9% - Boeing 737-900ER
7 departures · 80.8% load
3.7% - Boeing 737-700
1 departures · 92.0% load
0.5% - Airbus A220-300
1 departures · 40.2% load
0.5%
How has IAD–PHX traffic changed?
Nonstop IAD–PHX departures rose from 178 in June 2025 to 191 in May 2026.
Monthly nonstop IAD–PHX traffic, trailing 12 months through May 2026. Bars scale to the busiest month; months with no filed service show as zero.
June 2025
178 departures · 26,993 passengers
87.6%
Load
July 2025
179 departures · 26,224 passengers
84.4%
Load
August 2025
176 departures · 24,062 passengers
79.5%
Load
September 2025
177 departures · 25,035 passengers
82.9%
Load
October 2025
196 departures · 29,316 passengers
86.2%
Load
November 2025
216 departures · 30,499 passengers
80.7%
Load
December 2025
217 departures · 30,813 passengers
83.8%
Load
January 2026
191 departures · 23,763 passengers
71.9%
Load
February 2026
162 departures · 21,311 passengers
74.8%
Load
March 2026
231 departures · 34,250 passengers
84.6%
Load
April 2026
182 departures · 26,645 passengers
82.9%
Load
May 2026
191 departures · 29,382 passengers
87.4%
Load
By direction
Each direction is filed separately — they rarely match.
IAD → PHX
85.4% full
97 departures · 14,637 passengers
PHX → IAD
89.6% full
94 departures · 14,745 passengers
Nonstop IAD–PHX traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through May 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Dulles (IAD) from Phoenix (PHX)?
IAD to PHX is 1,952 miles (3,141 km / 1,696 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to PHX?
A nonstop covers the 1,952-mile great-circle distance in roughly 4h 42m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–PHX?
In May 2026, the Boeing 737 MAX 9 flew the largest share of departures (52.9%), followed by the Boeing 737 MAX 8 (33.5%).
What mileage do I earn flying IAD–PHX?
Distance-based programs credit off the 1,952-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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