Osprey Sojourn Porter Travel Pack 30 vs. Thule Aion 40L

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

Osprey Sojourn Porter Travel Pack 30

Front facing view of the Osprey Sojourn Porter Travel Pack 30
Capacity30 L
Weight1.4 kg
Dimensions44×37×27 cm
Airline fit15%
Price$180

Feature by feature

Osprey Sojourn Porter Travel Pack 30FeatureThule Aion 40L
Storage
2 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
Material
bluesign®-approved Recycled 500D Nylon Packcloth PFC Free DWR

Thule Aion 40L

Front facing view of the Thule Aion 40L
Capacity40 L
Weight1.5 kg
Dimensions52×33×23 cm
Airline fit70%
Price$200

Key differences between the Osprey Sojourn Porter Travel Pack 30 and 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. 1 accept only the Osprey Sojourn Porter Travel Pack 30, and 105 accept only the Thule Aion 40L.

Only the Osprey Sojourn Porter Travel Pack 30 fits

Gulf Air.

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 Sojourn Porter Travel Pack 30 vs. Thule Aion 40L: which should you pack?

The Thule Aion 40L carries 10L more than the Osprey Sojourn Porter Travel Pack 30 (30L vs. 40L), while the Osprey Sojourn Porter Travel Pack 30 is the lighter pack at 1.4kg (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 Sojourn Porter Travel Pack 30 is the better call.