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 July 2026, United Airlines operated the most departures, one of 2 carriers flying nonstop IAD–PHX; the Boeing 737 MAX 9 was the most common aircraft at 97% of departures; flights ran 93% full.
Departures
61
July 2026
Seats
10,812
both directions
Passengers
10,058
both directions
Load factor
93.0%
RPM ÷ ASM
Who flies IAD–PHX?
United Airlines operated the most nonstop IAD–PHX departures in July 2026 (60), one of 2 carriers on the route.
- UA
60 departures · 10,740 seats
Share of departures98.4%93.7%
Load
- DL
1 departures · 72 seats
Share of departures1.6%0.0%
Load
What plane flies IAD–PHX?
In July 2026, the Boeing 737 MAX 9 flew 97% of IAD–PHX departures — more than any other aircraft type.
- Boeing 737 MAX 9
59 departures · 94.6% load
96.7% - Boeing 757-200
1 departures · 0.0% load
1.6% - Boeing 737-900ER
1 departures · 36.3% load
1.6%
How has IAD–PHX traffic changed?
Nonstop IAD–PHX departures fell from 176 in August 2025 to 61 in July 2026.
Monthly nonstop IAD–PHX traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
June 2026
68 departures · 11,272 passengers
93.7%
Load
July 2026
61 departures · 10,058 passengers
93.0%
Load
By direction
Each direction is filed separately — they rarely match.
PHX → IAD
93.7% full
31 departures · 5,200 passengers
IAD → PHX
92.3% full
30 departures · 4,858 passengers
Nonstop IAD–PHX traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 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 July 2026, the Boeing 737 MAX 9 flew the largest share of departures (96.7%), followed by the Boeing 757-200 (1.6%).
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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