---
url: "https://onebag.travel/compare/ftw13cg3ht/osprey-quasar-26/zaj208cenq/thule-aion-40l/"
title: "Osprey Quasar 26 vs Thule Aion 40L - One Bag Travel"
description: "Osprey Quasar 26 vs Thule Aion 40L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/ftw13cg3ht/osprey-quasar-26/zaj208cenq/thule-aion-40l/"
---
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3.  Osprey Quasar 26 vs. Thule Aion 40L

# Osprey Quasar 26 vs. Thule Aion 40L

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

## [Osprey Quasar 26](https://onebag.travel/carryon/ftw13cg3ht/osprey-quasar-26/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>36 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>50×35×27 cm</td></tr><tr><td>Airline fit</td><td>14%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Feature by feature

| Osprey Quasar 26 | Feature | Thule Aion 40L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| top | Passport | top |
| Y | Passthrough | Y |
| Carry |
| hideable | Backpack | Y |
| hideable | Hip Belt | optional |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 4 | Main Compartments | 4 |
| Y | Organizer | Y |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>450D recycled polyester TPU coated</td><td></td></tr></tbody></table>

## [Thule Aion 40L](https://onebag.travel/carryon/zaj208cenq/thule-aion-40l/)

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

![Front facing view of the Thule Aion 40L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990324/carryons/thule-aion-40l-zaj208cenq.avif)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>40 L</td></tr><tr><td>Weight</td><td>1.5 kg</td></tr><tr><td>Dimensions</td><td>52×33×23 cm</td></tr><tr><td>Airline fit</td><td>70%</td></tr><tr><td>Price</td><td>$200</td></tr></tbody></table>

## Key differences between the Osprey Quasar 26 and Thule Aion 40L

-   **Backpack straps:** Hideable on the Osprey Quasar 26; Yes on the Thule Aion 40L.
-   **Hip belt:** Hideable on the Osprey Quasar 26; Optional on the Thule Aion 40L.
-   **Water bottle pockets:** No on the Osprey Quasar 26; 1, side on the Thule Aion 40L.

Both have: passport pocket, luggage passthrough, sternum strap, 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. 27 accept both. 0 accept only the Osprey Quasar 26, and 105 accept only the Thule Aion 40L.

### Only the Thule Aion 40L fits

Aegean Airlines, Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Asia, Air Astana, Air Canada, Air Caraibes, Air France, Air India, Air Macau, Air Mauritius, Air Nostrum, Air Wisconsin, AirAsiaX, Alaska Airlines, All Nipon Airways, Allegiant Air, American Airlines, ANA, Atlas Global, Austrian, Avianca , Azerbaijan Airlines, Bahamasair, Bangkok Airways, Biman Bangladesh, Boliviana de Aviacion, British Airways, Brussels Airlines, Cambodia Angkor Air, Cathay Pacific, Cayman Airways, Cebu Pacific, China Airlines, CommutAir, Conviasa, Copa Airlines, Czech Airlines, Delta Airlines, Dragonair, EL AL, Ethiopian Airlines, Eurowings, EVA Air, Fiji Airways, Finnair, Flair Air, Frontier Airlines, Garuda Indonesia, Gol Linhas Aereas, Hawaiian Airlines, Hong Kong Airlines, Iberia, Indigo, Interjet, Iran Air, Iran Aseman Air, Japan Airlines, Jet Airways, Jet2, jetBlue Airways, Jetstar Airways, Jetstar Asia, Kenya Airways, KLM, Kulula, Kuwait Air, LATAM , LOT Polish, Lufthansa, Mahan Air, Malaysia Airlines, Mango, Mesa Airlines, Middle East Airlines, Monarch Airlines, Norwegian, Onur Air, Peach, PenAir, Porter Airlines, Qantas Airways, Republic Airways, SAS Scandinavian, Scoot, Sky Airlines, Skywest, Inc., South African Airways, Southwest Airlines, Spirit Airlines, SriLankan Airlines, Swiss Int'l Air Lines, Thai Airways, Tiger Airways, Trans States, Travel Service Airlines, Turkish Airlines, United Airlines, Uzbekistan Air, Vietnam Airlines, Virgin Atlantic, WestJet, WOW Airlines.

## Osprey Quasar 26 vs. Thule Aion 40L: which should you pack?

The **Thule Aion 40L** carries 4L more than the **Osprey Quasar 26** (36L vs. 40L), while the **Osprey Quasar 26** is the lighter pack at 1.3kg (vs. 1.5kg). For carry-on flexibility, the **Thule Aion 40L** fits 70% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Thule Aion 40L; if you want to travel lighter, the Osprey Quasar 26 is the better call.