---
url: "https://onebag.travel/compare/fp6w6mo3ab/millican-smith-18l/gpfbufuba2/osprey-flapjack/"
title: "Millican Smith 18L vs Osprey Flapjack - One Bag Travel"
description: "Millican Smith 18L vs Osprey Flapjack: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/fp6w6mo3ab/millican-smith-18l/gpfbufuba2/osprey-flapjack/"
---
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2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Millican Smith 18L vs. Osprey Flapjack

# Millican Smith 18L vs. Osprey Flapjack

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

## [Millican Smith 18L](https://onebag.travel/carryon/fp6w6mo3ab/millican-smith-18l/)

by [Millican](https://onebag.travel/carryons/?brands=Millican)

![Front facing view of the Millican Smith 18L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601586503/carryons/mavericks-Smith-18l-slate-front_1024x_tzt5sd.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>18 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>50×28×10 cm</td></tr><tr><td>Airline fit</td><td>92%</td></tr><tr><td>Price</td><td>$130</td></tr></tbody></table>

## Feature by feature

| Millican Smith 18L | Feature | Osprey Flapjack |
| --- | --- | --- |
| Storage |
| N | Compression |  |
| None | Expanded Capacity | None |
| 2 | Opening | 0 |
| side | Passport | side |
| N | Passthrough | N |
| Carry |
| Y | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap |  |
| Inside |
| 15in | Laptop | 15in |
| 3 | Main Compartments | 3 |
| N | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder |  |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>Weatherproof Bionic Canvas</td><td>600D Polyspun</td></tr></tbody></table>

## [Osprey Flapjack](https://onebag.travel/carryon/gpfbufuba2/osprey-flapjack/)

by [Osprey](https://onebag.travel/carryons/?brands=Osprey)

![Front facing view of the Osprey Flapjack](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601576342/carryons/c9e6c91c-b836-4c78-a9ed-c452b3ce9d5a_rsb3j2.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>21 L</td></tr><tr><td>Weight</td><td>0.9 kg</td></tr><tr><td>Dimensions</td><td>49×34×23 cm</td></tr><tr><td>Airline fit</td><td>72%</td></tr><tr><td>Price</td><td>$110</td></tr></tbody></table>

## Key differences between the Millican Smith 18L and Osprey Flapjack

-   **Opening:** Rolltop on the Millican Smith 18L; Other on the Osprey Flapjack.
-   **Built-in organizer:** No on the Millican Smith 18L; Yes on the Osprey Flapjack.

Both have: passport pocket, backpack straps, hip belt, laptop sleeve, water resistant.

## 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. 38 accept only the Millican Smith 18L, and 0 accept only the Osprey Flapjack.

### Only the Millican Smith 18L fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, Emirates Airlines, Enter Air, flybe, Great Lakes Airlines, 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.

## Millican Smith 18L vs. Osprey Flapjack: which should you pack?

The **Osprey Flapjack** carries 3L more than the **Millican Smith 18L** (18L vs. 21L), while the **Millican Smith 18L** is the lighter pack at 0.9kg (vs. 0.9kg). For carry-on flexibility, the **Millican Smith 18L** fits 92% 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 Millican Smith 18L is the better call.