IAD → PHXWashington to Phoenix

live

Direct flights from Washington (IAD) to Phoenix (PHX): 21 nonstop departures observed each week across 1 airline. 91% of the last 11 tracked flights arrived within 15 minutes of schedule. The median arrival is 23 minutes early. No cancellations were recorded across the 13 tracked flights. The nonstop covers 3,142 km, an estimated 4 hours 32 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Phoenix. Updated 2 November 2026 at 14:41 UTC.

Today, IAD → PHX

Mon 2 Nov · local times
  1. · UA1637United Airlines On schedule PHX 16:08scheduled
  2. · UA1938United Airlines On schedule PHX 21:04scheduled

Checked IAD board 06:18 · PHX board 07:41

IAD Washington smooth · +4
PHX Phoenix smooth · +0
3,142 km · ~4h 32m est.
dep bank 08:20–17:4621x weekly
Runs reliable · 1 airline · 21x weekly · nonstop
91% on time

of the last 11 tracked IAD → PHX flights arrived within 15 minutes

Median arrival delay is −23 min. 0 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−23 minacross the last 11 arrivals
Flight time~4h 32mestimated from route distance
Weekly departures21x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 13

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
United AirlinesUA91% on time

Flights UA709 varies daily · UA1637 12:55 daily · UA1938 varies daily

History

operated legs · board outcomes
11-01UA1637dep +13 → arr−34
11-01UA1938dep +46 → arr−1
11-01UA709dep +4 → arr−36
10-31UA1637dep +17 → arr−25
10-31UA709dep +28 → arr−13
10-301I751departed+68
10-30UA1637dep +6 → arr−9
10-30UA1938dep +52 → arr+12
10-30UA709dep +8 → arr−23
10-29UA1637dep +90 → arr+50
10-29UA1938dep +27 → arr−24
10-29UA709dep +9 → arr−38
10-28UA1637departed+34

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
IADWashington +4 min smooth 🌤 mostly cloudy · SW 4 kt Full IAD delay board →
PHXPhoenix +0 min smooth 🌤 few clouds · NNW 4 kt Full PHX delay board →

Weather lens

Conditions are tightest at IAD and PHX: a 35% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +4 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →

How the Washington to Phoenix route actually runs

Pro Flight Search records official board updates for nonstop IAD to PHX flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: Washington (IAD) to Phoenix (PHX) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/IAD-PHX
How we measure this →

IAD to PHX questions

Is IAD–PHX running on time right now?

Smooth skies ahead. The departure side at IAD is the weaker end, route health score 96/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from IAD to PHX?

Great-circle distance is 3,142 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 252–299 min gate-to-gate on this route.

How often does IAD–PHX fly?

United Airlines runs the route with about 21 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at IAD and arrival-side delay at PHX, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.