Bombardier Learjet 31 fleet

Fatigue

The middle Learjet 31 flies 1.1 hours for every landing. One in twenty lands every 0.7 hours or sooner, the most cycles for its time.

Hours per landing
1.1 : 1

Middle half 0.9–1.3 : 1Harder end: 5% at 0.7 : 1 or lessEasier end: 5% at 1.6 : 1 or more

Short hops
53%

Middle half 35–69%Harder end: 5% at 80% or moreEasier end: 5% at 19% or less

Leg length
266 nm

Middle half 205–410 nmLowest 5%: 124 nm or lessHighest 5%: 601 nm or more

Context, not graded: the tint marks the harder and easier end of the fleet.

Spread of trip lengths

All 64 Learjet 31s
24%
33%
16%
11%
13%
4%
1%
0%
<150
150–300
300–450
450–600
600–900
900–1,200
1,200–1,800
1,800+
Share of legs by length in nautical miles, 6,112 legs with a known distance from 1 Aug 2025 to 31 Jul 2026. The fleet's trips bunch at 150–300 nm; 57% were under 300 nm and 5% over 900 nm.

Source: The Aircraft Ledger