FI633Icelandair · KEF → BOS
live · 16m ago
Route confirmed Icelandair

FI633 ReykjavíkKEF BostonBOS

FI633 by Icelandair flies from Reykjavík (KEF) to Boston (BOS).

Right nowNext departure today Operates daily
20:25

scheduled from KEF

The route today

live boards
KEFReykjavíkOn-time likelyKEF delay board →
BOSBostonOn-time likelyBOS delay board →
KEF→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
35%Chance of 15+ min delay
3.1%Chance of cancellation
+4 minTypical airport delay in this weather

Conditions at KEF and BOS 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 at Reykjavík

Forecast

Sun 15 Nov, local date

High−2°Clikely −4°C to 0°C
Low−5°Clikely −8°C to −3°C
  • 69% chance of snow

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Boston

Forecast

Sun 15 Nov, local date

High10°Clikely 8°C to 11°C
Low3°Clikely 2°C to 5°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · 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 Reykjavík to Boston flights today

same route · Icelandair
FI635departs 10:25
FI631departs 17:00

If FI633 is cancelled, these are the other Icelandair nonstop flights from Reykjavík to Boston on the same day, with scheduled departure times in KEF 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 FI633 actually runs

Pro Flight Search has tracked every published board update for FI633 across the KEF and BOS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at KEF and BOS.

The verdict above is that record speaking, so it reflects how FI633 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around FI633? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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: FI633 Reykjavík to Boston on-time performance, measured from the KEF and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/FI633
How we measure this →