Aer Travel Pack 4 35L vs. ULA Equipment Ultra Cicada

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

Aer Travel Pack 4 35L

by Aer
Front facing view of the Aer Travel Pack 4 35L
Capacity35 L
Weight1.8 kg
Dimensions55×34×23 cm
Airline fit68%
Price$260

Feature by feature

Aer Travel Pack 4 35LFeatureULA Equipment Ultra Cicada
Storage
N Compression N
None Expanded Capacity None
1 Opening 1
top Passport top
Y Passthrough Y
Carry
Y Backpack Y
optional Hip Belt optional
removable Sternum Strap removable
Inside
16in Laptop 15in
5 Main Compartments 4
Y Organizer Y
Outside
× Hard Shell ×
N Rain-fly N
2, side Water Bottle Holder 2, side, internal
Y Water Resistant Y
Material
1680D CORDURA® ballistic nylon exterior (bluesign® approved)ULTRA 400TX

ULA Equipment Ultra Cicada

Front facing view of the ULA Equipment Ultra Cicada
Capacity22 L
Weight0.8 kg
Dimensions46×28×13 cm
Airline fit95%
Price$350

Key differences between the Aer Travel Pack 4 35L and ULA Equipment Ultra Cicada

Both have: passport pocket, luggage passthrough, backpack straps, hip belt, sternum strap, 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. 129 accept both. 0 accept only the Aer Travel Pack 4 35L, and 50 accept only the ULA Equipment Ultra Cicada.

Only the ULA Equipment Ultra Cicada fits

Air Baltic, Air China, Air Malta, Air Niugini, Air Serbia, Air Seychelles, American Eagle, Asiana Airlines, ATA Airlines, Belavia, Blue Air, Bulgaria Air, China Eastern, easyJet, Emirates Airlines, Enter Air, Etihad Airways, flybe, Great Lakes Airlines, Icelandair, InselAir, Juneyao Airlines, Liat Airlines, Luxair, Meridiana Fly, Nordwind Airlines, Oman Air, Pakistan International, Qatar Airways, Ravn Alaska, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, Scoot, Shandong Airlines, Shenzhen Airlines, Sun Express, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

Aer Travel Pack 4 35L vs. ULA Equipment Ultra Cicada: which should you pack?

The Aer Travel Pack 4 35L carries 13L more than the ULA Equipment Ultra Cicada (35L vs. 22L), while the ULA Equipment Ultra Cicada is the lighter pack at 0.8kg (vs. 1.8kg). For carry-on flexibility, the ULA Equipment Ultra Cicada fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Aer Travel Pack 4 35L; if you want to travel lighter, the ULA Equipment Ultra Cicada is the better call.