Osprey Flapjack vs. Osprey Flapjill

Two carry-on travel backpacks, compared spec for spec.

Osprey Flapjack

Front facing view of the Osprey Flapjack
Capacity21 L
Weight0.9 kg
Dimensions49×34×23 cm
Airline fit72%
Price$110

Feature by feature

Osprey FlapjackFeatureOsprey Flapjill
Storage
Compression
None Expanded Capacity None
0 Opening 0
side Passport side
N Passthrough N
Carry
Y Backpack
removable Hip Belt removable
Sternum Strap
Inside
15in Laptop 15in
3 Main Compartments 3
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
Water Bottle Holder
Y Water Resistant Y
Material
600D Polyspun600D Polyspun

Osprey Flapjill

Front facing view of the Osprey Flapjill
Capacity19 L
Weight0.9 kg
Dimensions46×34×23 cm
Airline fit74%
Price$110

Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 136 accept both. 0 accept only the Osprey Flapjack, and 3 accept only the Osprey Flapjill.

Only the Osprey Flapjill fits

Ravn Alaska, Regional Express, Virgin Australia.

Osprey Flapjack vs. Osprey Flapjill: which should you pack?

The Osprey Flapjack carries 2L more than the Osprey Flapjill (21L vs. 19L), while the Osprey Flapjack is the lighter pack at 0.9kg (vs. 0.9kg). For carry-on flexibility, the Osprey Flapjill fits 74% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Flapjack; if you want to travel lighter, the Osprey Flapjack is the better call.