REI Co-op Ruckpack 18 vs. Osprey Flapjill
Two carry-on travel backpacks, compared spec for spec.
REI Co-op Ruckpack 18
| Capacity | 18 L |
| Weight | 0.7 kg |
| Dimensions | 44×26×18 cm |
| Airline fit | 96% |
| Price | $65 |
Feature by feature
| REI Co-op Ruckpack 18 | Feature | Osprey Flapjill |
|---|---|---|
| Storage | ||
| Compression | ||
| None | Expanded Capacity | None |
| 0 | Opening | 0 |
| side | Passport | side |
| N | Passthrough | N |
| Carry | ||
| Backpack | ||
| removable | Hip Belt | removable |
| removable | Sternum Strap | |
| Inside | ||
| 15in | Laptop | 15in |
| 2 | Main Compartments | 3 |
| Y | Organizer | Y |
| Outside | ||
| × | Hard Shell | × |
| N | Rain-fly | N |
| Water Bottle Holder | ||
| Y | Water Resistant | Y |
| Material | |
| 210-denier nylon ripstop | 600D Polyspun |
Osprey Flapjill
| Capacity | 19 L |
| Weight | 0.9 kg |
| Dimensions | 46×34×23 cm |
| Airline fit | 74% |
| Price | $110 |
Key differences between the REI Co-op Ruckpack 18 and Osprey Flapjill
- Main compartments: 2 on the REI Co-op Ruckpack 18; 3 on the Osprey Flapjill.
Both have: passport pocket, hip belt, laptop sleeve, built-in organizer, water resistant.
Which airlines take each bag as a carry-on
We checked both bags against the carry-on size limits of 189 airlines. 139 accept both. 42 accept only the REI Co-op Ruckpack 18, and 0 accept only the Osprey Flapjill.
Only the REI Co-op Ruckpack 18 fits
Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Air Tahiti, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, flybe, Great Lakes Airlines, Gulf Air, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Pakistan International, Royal Brunei Airlines, Ryanair, S7, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), TUI, Ukraine International, VIM Airlines (Closed), Volotea, Xiamen.
REI Co-op Ruckpack 18 vs. Osprey Flapjill: which should you pack?
The Osprey Flapjill carries 1L more than the REI Co-op Ruckpack 18 (18L vs. 19L), while the REI Co-op Ruckpack 18 is the lighter pack at 0.7kg (vs. 0.9kg). For carry-on flexibility, the REI Co-op Ruckpack 18 fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Osprey Flapjill; if you want to travel lighter, the REI Co-op Ruckpack 18 is the better call.