Is Icelandair reliable?
Ranked 9 of 94 US airlines on on-time record.
5,156 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
82.86%
Arrived on time
Within 15 minutes of schedule
1.32%
Cancelled
Share of scheduled flights
—
When late, late by
Average across delayed arrivals
—
Delays it caused itself
Rest was weather, ATC or security
Reading Icelandair’s record
Icelandair sits in the top fifth of the 94 airlines measured.
It performs much the same wherever it flies, within about 4 points across its routes. That consistency is worth something on its own: the overall figure is a fair guide to what to expect on any particular route, which is not true of every carrier here.
Each axis is a percentile against the other US airlines in the same period, not an absolute score. Further out is better than most; nearer the centre is worse than most.
Icelandair in five measures
An airline's headline on-time rate hides more than it shows. Two carriers can both arrive on time 75% of the time while one is late by twelve minutes and the other by an hour, or while one is evenly mediocre everywhere and the other is excellent on most routes and dreadful on a few.
These five axes pull those apart. Each is scored against the other US airlines in the same period rather than on an absolute scale, because on-time rates cluster tightly enough that raw numbers would draw every carrier as the same shape.
Same everywhere is the one worth reading twice: it measures how far Icelandair’s on-time rate moves from route to route. A carrier scoring low there has an average propped up by routes you may not be flying.
Its most reliable routes
- KEF → MAN Reykjavík to Manchester 88.01%
- KEF → LHR Reykjavík to London 87.58%
- KEF → LGW Reykjavík to London 85.37%
- KEF → EDI Reykjavík to Ingliston 84.72%
- MAN → KEF Manchester to Reykjavík 83.42%
- LHR → KEF London to Reykjavík 82.9%
- KEF → GLA Reykjavík to Glasgow 82.29%
- EDI → KEF Ingliston to Reykjavík 80.42%
- GLA → KEF Glasgow to Reykjavík 79.27%
- LGW → KEF London to Reykjavík 72.88%
Its worst routes
- LGW → KEF London to Reykjavík 72.88%
- GLA → KEF Glasgow to Reykjavík 79.27%
- EDI → KEF Ingliston to Reykjavík 80.42%
- KEF → GLA Reykjavík to Glasgow 82.29%
- LHR → KEF London to Reykjavík 82.9%
- MAN → KEF Manchester to Reykjavík 83.42%
- KEF → EDI Reykjavík to Ingliston 84.72%
- KEF → LGW Reykjavík to London 85.37%
- KEF → LHR Reykjavík to London 87.58%
- KEF → MAN Reykjavík to Manchester 88.01%
How Icelandair compares
Figures cover March 2025 – August 2026 and are counted from the regulators' own published files. A grade describes the past and is not a prediction about a particular flight, nor a safety rating. How the grade is calculated →