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The Learjet 31 (ICAO type LJ31) is an aircraft of United States origin, certificated in the Transport Aircraft category. It has a maximum take-off weight of 7,400 kg. It offers a maximum range of 1,290 nm, a cruise speed of 450 knots, a service ceiling of 51,000 ft and seating for up to 10 across its variants.

Learjet 31

Learjet 31
LJ31
Photo via Wikipedia: Learjet 31
Year
—
Owner
—
Last seen
—
MTOW
7,400 kg
Range
1,290 nm
Seats
10
31
Learjet · 31
Model overview

Fleet & certification

Built
224
Active
224
Origin
United States
Certifying authorities
FAA
Marketplace

33 for sale right now

Variants

Per-variant specifications

VariantEngineMTOWRangeCruisePax
31
31
—7,400 kg1,290 nm450 kt10
31A
31A
—7,400 kg1,290 nm450 kt10
Type certification

The FAA paperwork

TCDS A10CE · Rev 62 · issued 2009-11-20

Category
Transport Aircraft
MTOW
7,031 kg
MZFW
5,897 kg
Seats
2 crew · 8 passengers
Ceiling
51,000 ft
Approved fuelSee NOTE 5(b) for Model 31. See NOTE 5(c) for Model 31A.
Engine

Two Honeywell TFE-731-2-3B, P/N 3073610-1 (w/o fuel heaters) Optional - Two Honeywell TFE-731-2-3B, P/N 3073610-3 (with fuel heaters)

Safety & ops history

Where to look next

Detailed safety & ops history coming soon — view this model's FAA Airworthiness Directives at FAA.gov.

Learjet 31 market & fleet intelligence

Registry, flight-tracking and market data on the Learjet 31 fleet — updated daily.

Fleet age

29 yearsmedian age

Of the 132 registered Learjet 31 with a known build year (59% of the 224 we track), the median age is 29 years.

Registration activity

12changed registration in 12 months

12 of the 224 registered Learjet 31 we track changed registration in the last 12 months (5% of the fleet), across 12 registration events. Registration changes include ownership transfers, re-registrations and address updates — not all are sales.

Fleet activity — last 90 days
Aircraft seen flying
39
Tracked flights
172
Tracked flight hours
455
Share of fleet flying
17%

39 Learjet 31 were tracked flying in the last 90 days (17% of the registered fleet), across 172 flights. Sprinkle flight tracking began May 2026; coverage is ADS-B-derived and not exhaustive.

For sale now

33Learjet 31 listed for sale

Browse Learjet 31 for sale →
31 — frequently asked
What is the range of the Learjet 31?

The Learjet 31 has a maximum range of 1,290 nautical miles across variants.

How many people can the Learjet 31 carry?

The Learjet 31 seats up to 10 across its variants.

What is the MTOW of the Learjet 31?

The Learjet 31's maximum take-off weight is 7,400 kg.

What is the ICAO type designator for the Learjet 31?

The Learjet 31's ICAO type designator is LJ31.

How many Learjet 31 aircraft are registered worldwide?

Sprinkle tracks 224 registered Learjet 31 airframes worldwide.