IAD to EDI flight delays
Washington, VA (IAD) Ingliston (EDI)
373 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics and UK Civil Aviation Authority
63.49%
Arrived on time
Within 15 minutes of schedule
1.61%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
29 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In April it ran 46.3 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
The route has been getting better. The later months in the record run 22.6 points more punctual than the earlier ones, which usually means a schedule that was too tight has been given more room.
This route does worse than its own airport. IAD as a whole runs 19.4 points more punctual than these flights, which points at something specific to the route — the time of day it is scheduled, or the aircraft that feed it — rather than the airport.
This is a late route. Flights from Washington to Ingliston miss their scheduled arrival often enough that a tight connection at the far end is a connection at risk.
Which airline should you fly on this route?
Over March 2025 – August 2026, United Airlines arrived on time most often on IAD to EDI. Flights ran closest to schedule in January and worst in July.
Every airline on IAD to EDI
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| United Airlines | 373 | 63.49% | 1.61% | — | D |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
EDI to IAD Ingliston back to Washington 68.49% on time DOther routes from Washington
Common questions
Are flights from Washington to Ingliston usually delayed?
63.49% of flights on the IAD to EDI route arrived within 15 minutes of schedule, so roughly 4 in every ten arrived late. That is worse than the average route in this record.
Which airlines fly from Washington to Ingliston?
Only United Airlines appears in the published record on this route, with 373 flights and 63.49% arriving on time.
How often are IAD to EDI flights cancelled?
1.61% of scheduled flights did not operate — about 16 in every thousand. That is in the normal range.
What is the best month to fly Washington to Ingliston?
April, when 83.3% of flights arrived on time. The worst was July at 37%.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on IAD to EDI during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →