IAD → PWMWashington to Portland

live

Direct flights from Washington (IAD) to Portland (PWM): 7 nonstop departures observed each week across 1 airline. 89% of the last 18 operated flights arrived within 15 minutes of schedule. The median arrival is 15 minutes early. No cancellations were recorded across the 18 tracked flights. The nonstop covers 793 km, an estimated 1 hour 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Portland. Updated 20 October 2026 at 19:48 UTC.

Today, IAD → PWM

Tue 20 Oct · local times
  1. 08:18 UA3548United On schedule PWM est. 09:59sched 10:02
  2. 12:47 UA3709United Left 12:54 +7 Landed 14:14 −24
  3. 17:30 UA3538United Sched 17:30Departure not confirmed by the board PWM est. 19:20sched 19:24

Checked IAD board 15:18 · PWM board 15:48

IAD Washington smooth · +12
PWM Portland smooth · +4
793 km · ~1h 31m est.
dep bank 08:18–22:107x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
89% on time

of the last 18 operated IAD → PWM flights arrived within 15 minutes

Median arrival delay is −15 min. 0 of 18 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−15 minacross the last 18 operated legs
Flight time~1h 31mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 18

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 AirlinesUA88% on time

Flights UA3548 08:18 daily · UA3709 12:47 daily · UA3538 17:30 daily · UA3459 22:10 daily

History

operated legs · board outcomes
10-20UA3709dep +7 → arr−24
10-19UA3459dep +40 → arr+12
10-19UA3538dep +27 → arr−12
10-19UA3548dep +9 → arr−20
10-19UA3709dep +10 → arr−24
10-181I148dep +1 → arr+10
10-18UA3459dep +15 → arr−17
10-18UA3538dep +32 → arr−36
10-18UA3548dep +17 → arr−8
10-18UA3709dep +16 → arr−20
10-17UA3459dep +9 → arr−22
10-17UA3538dep +22 → arr−15
10-17UA3548dep +21 → arr−19
10-17UA3709dep +21 → arr−21
10-16UA3459dep +47 → arr+45
10-16UA3538departed+15
10-16UA3548departed+13
10-16UA3709departed+27

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 +12 min smooth 🌤 clear · NNE 8 kt Full IAD delay board →
PWMPortland +4 min smooth 🌤 clear · NNE 6 kt Full PWM delay board →

Weather lens

Current conditions put the pressure at IAD and PWM: 36% odds of a 15+ minute delay and around +4 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Washington to Portland route actually runs

Pro Flight Search records official board updates for nonstop IAD to PWM 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 Portland (PWM) route reliability, measured from operated flights on official airport boards.

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

IAD to PWM questions

Is IAD–PWM running on time right now?

Smooth skies ahead. The departure side at IAD is the weaker end, route health score 88/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on IAD–PWM?

Operators schedule morning departures around 08:18 and evening departures around 17:30 from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the PWM delay card to confirm conditions when you'd arrive.

How long is the flight from IAD to PWM?

Great-circle distance is 793 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 86–98 min gate-to-gate on this route.

How often does IAD–PWM fly?

United Airlines runs the route with about 28 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.