LH420Lufthansa · FRA → BOS
live · 8m ago
Route confirmed Lufthansa

LH420 Frankfurt am MainFRA BostonBOS

LH420 by Lufthansa flies from Frankfurt am Main (FRA) to Boston (BOS).

Right nowNext departure today Operates daily
17:40

scheduled from FRA

The route today

live boards
FRAFrankfurt am MainHigh riskFRA delay board →
BOSBostonOn-time likelyBOS delay board →
FRA→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
38%Chance of 15+ min delay
3.0%Chance of cancellation
+6 minTypical airport delay in this weather

Conditions at FRA 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 on this route

Forecast

Frankfurt am Main to Boston with Lufthansa · Mon 2 Nov, local date

Outlook: about usual
Chance a departure is cancelled
1.1%0.4× usual
Chance a departure leaves 60+ min late
2.9%1.0× usual

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Fewer than one departure a day on this route with this airline, so read it as a rough guide. · 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 Frankfurt am Main to Boston flights today

same route · Lufthansa
LH422departs 11:10

If LH420 is cancelled, this is the other Lufthansa nonstop flight from Frankfurt am Main to Boston on the same day, with scheduled departure times in FRA 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 LH420 actually runs

Pro Flight Search has tracked every published board update for LH420 across the FRA and BOS boards: schedule changes, gate pushes and actual clocks. Combined risk score: 59.7/100. Based on airport operations, weather, and cached board history at FRA and BOS.

The verdict above is that record speaking, so it reflects how LH420 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around LH420? 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: LH420 Frankfurt am Main to Boston on-time performance, measured from the FRA and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/LH420
How we measure this →