Icelandair (ICE) on-time performance, September 2026
1,078 scheduled Icelandair departures in US airspace in September 2026, 83.5% of them on time. Measured from FAA departure data, updated every morning.
On time, day by day
Share of Icelandair departures within 15 minutes of schedule, by day. Light bars show each day's departures for context. Worst day: Monday 21 September at 67.6%. Best: Thursday 24 September at 96.7%.
Airports, ranked by on-time share
Airports with at least 30 Icelandair departures in the month.
| Airport | Departures | On time | 45+ min late | Avg delay (min) |
|---|---|---|---|---|
| BOS Boston | 55 | 92.7% | 1.8% | -3.9 |
| YYZ Toronto | 51 | 90.2% | 3.9% | -0.6 |
| KEF Keflavik | 487 | 87.5% | 0.8% | 2.9 |
| JFK New York | 65 | 86.2% | 3.1% | -1.7 |
| DEN Denver | 40 | 85.0% | 7.5% | 3.0 |
| BWI Baltimore | 39 | 84.6% | 0.0% | -1.3 |
| MSP Minneapolis | 31 | 83.9% | 3.2% | 16.5 |
| IAD Washington | 40 | 82.5% | 0.0% | -1.9 |
| SEA Seattle | 66 | 80.3% | 4.5% | 0.1 |
| ORD Chicago | 47 | 76.6% | 6.4% | 6.1 |
| RDU Raleigh-Durham | 30 | 56.7% | 16.7% | 21.6 |
| EWR Newark | 30 | 53.3% | 13.3% | 10.1 |
Least punctual routes
Routes with at least 20 Icelandair departures, lowest on-time share first.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| YVR to KEF Vancouver to Keflavik | 20 | 50.0% | 16.5 |
| EWR to KEF Newark to Keflavik | 30 | 53.3% | 10.1 |
| RDU to KEF Raleigh-Durham to Keflavik | 30 | 56.7% | 21.6 |
| KEF to PDX Keflavik to Portland | 21 | 66.7% | 9.3 |
| KEF to MSP Keflavik to Minneapolis | 30 | 73.3% | 6.2 |
| ORD to KEF Chicago to Keflavik | 47 | 76.6% | 6.1 |
| KEF to DEN Keflavik to Denver | 38 | 78.9% | 13.1 |
| SEA to KEF Seattle to Keflavik | 65 | 80.0% | 0.1 |
| KEF to EWR Keflavik to Newark | 31 | 80.6% | 2.8 |
| IAD to KEF Washington to Keflavik | 40 | 82.5% | -1.9 |
Busiest routes
The ten routes Icelandair flew most this month.
| Route | Flights | On time | Avg delay |
|---|---|---|---|
| JFK to KEF New York to Keflavik | 65 | 86.2% | -1.7 |
| SEA to KEF Seattle to Keflavik | 65 | 80.0% | 0.1 |
| KEF to SEA Keflavik to Seattle | 64 | 82.8% | 3.7 |
| KEF to JFK Keflavik to New York | 56 | 94.6% | -0.1 |
| KEF to BOS Keflavik to Boston | 55 | 94.5% | -3.5 |
| BOS to KEF Boston to Keflavik | 55 | 92.7% | -3.9 |
| YYZ to KEF Toronto to Keflavik | 51 | 90.2% | -0.6 |
| KEF to ORD Keflavik to Chicago | 47 | 97.9% | -0.2 |
| ORD to KEF Chicago to Keflavik | 47 | 76.6% | 6.1 |
| DEN to KEF Denver to Keflavik | 40 | 85.0% | 3.0 |
Other months for Icelandair
Airport pages for September 2026
How we measure
On time means the aircraft took off within 15 minutes of its scheduled departure, after subtracting the departure airport's normal taxi time (FAA SWIM reports wheels-off, not push-back, so the median taxi time of the last 30 days is taken off every flight first). Average delay is the mean of that taxi-adjusted delay over all departures; early departures count as negative minutes, so an operator that routinely leaves early can show a negative average. 45+ min late is the share of departures that left 45 minutes or more behind schedule, the point at which most connections are at risk.
Scope: scheduled airlines only, the same set as the monthly State of the Sky report (operators with published routes; private, fractional and charter operators are left out), so the two publications give the same numbers for the same month. Departures are counted by scheduled day (UTC). Each day's flights are rolled up overnight and published the next morning; the newest day keeps filling in for a day or two and is only shown once it is substantially complete. Figures can differ by a few tenths of a point from the State of the Sky report for the same month: that report is frozen on the 2nd of the following month, while these pages are rebuilt from the live rollup, which recomputes each airport's taxi baseline nightly and re-rolls the last week of the month as late departure times arrive (September 2026 at SFO: 16,398 departures in both, 69.2% on time here against 69.5% in the report).
Source: FAA System Wide Information Management (SWIM) flight plans and departure times, processed by PlaneTrack. Free to quote with credit to PlaneTrack (CC BY 4.0).