UA2639 DFW → IAD

United Airlines · Dallas/Fort Worth, TX to Washington, DC · 292 flights observed, 2025-07-01 to 2026-06-30 · 1,172 mi

UA2639 covers more than one route in the data window — the stats below are for DFW → IAD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
88%
Median delay
-10 min
90th percentile
+21 min
Cancellation rate
1%

How often is UA2639 on time?

Across 292 flights on DFW → IAD from 2025-07-01 to 2026-06-30, UA2639 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +21 min or later. 1% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time25488%
16-30 min114%
31-60 min93%
61-120 min72%
2+ hrs72%

Performance by month

MonthFlightsOn-timeAvg delay
2025-073181%+20 min
2025-082387%+19 min
2025-091794%-5 min
2025-101979%+23 min
2025-112286%-6 min
2025-123190%-4 min
2026-0125100%-15 min
2026-022195%-12 min
2026-032387%+3 min
2026-043090%-10 min
2026-052789%-7 min
2026-061979%+9 min

Performance by day of week

DayFlightsOn-time
Mon5092%
Tue2789%
Wed2688%
Thu5080%
Fri5192%
Sat3987%
Sun4589%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…