UA3538United Airlines · IAD → PWM
updated 2h ago
Route confirmed United Airlines

UA3538 WashingtonIAD · 17:30 PortlandPWM · 19:24

UA3538 by United Airlines flies from Washington (IAD) to Portland (PWM).

Right nowNext departure today Operates daily
21:51

scheduled from IAD

⚖ UA3538 typically leaves +27 and lands −17. The air wins minutes back.
Typical gate push+27 minmedian posted departure
Typical arrival−17 minmedian over 8 operations
Wins back in air~44 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
11-01
+32 gate · −36 arrival
10-24
+17 gate · −24 arrival
10-23
+21 gate · −17 arrival
10-22
+34 gate · −4 arrival
10-21
+21 gate · −17 arrival
10-20
+27 gate · −14 arrival
10-19
+27 gate · −12 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −17 min · 0 cancelled · 8 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
PWMPortlandOn-time likelyPWM delay board →
IAD→PWMevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
3.3%Chance of cancellation
+4 minTypical airport delay in this weather

Conditions at IAD and PWM are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

Washington to Portland with United Airlines · Mon 2 Nov, local date

Outlook: below usual
Chance a departure is cancelled
0.2%0.5× usual
Chance a departure leaves 60+ min late
4.3%0.7× usual

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · About 4 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other Washington to Portland flights today

same route · United Airlines
UA3548departs 08:18
UA4390departs 08:28
UA3709departs 12:40
UA3664departs 17:15
UA3459departs 22:10
UA3651departs 22:12

If UA3538 is cancelled, these are the other United Airlines nonstop flights from Washington to Portland on the same day, with scheduled departure times in IAD local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA3538 actually runs

Pro Flight Search has tracked every published board update for UA3538 across the IAD and PWM boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 8 confirmed landings · 7/8 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA3538 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
11-01IAD 17:30 18:02 (+32)PWM 19:24 18:48 (−36)
10-24IAD 17:30 17:47 (+17)PWM 19:24 19:00 (−24)
10-23IAD 17:30 17:51 (+21)PWM 19:24 19:07 (−17)
10-22IAD 17:30 18:04 (+34)PWM 19:24 19:20 (−4)
10-21IAD 17:30 17:51 (+21)PWM 19:24 19:07 (−17)
10-20IAD 17:30 17:57 (+27)PWM 19:24 19:10 (−14)
10-19IAD 17:30 17:57 (+27)PWM 19:24 19:12 (−12)
10-18IAD 17:30 18:02 (+32)PWM 19:24 18:48 (−36)

Aircraft

Recent tails: N756YX, N789YX, N782YX, N724YX.

Board clocks recorded as IAD and PWM published them.

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: UA3538 Washington to Portland on-time performance, measured from the IAD and PWM airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3538
How we measure this →