Travel backpack · carry-on
Aer Travel Pack 4 28L: size, weight and airline fit
The Aer Travel Pack 4 28L measures 19.25 x 12.75 x 8 in and fits the carry-on limit of 39 of 39 airlines.
Listed outside size
19.25 x 12.75 x 8 in
about 49 x 32 x 20 cm · 3.5 lb (1.59 kg) · 28 L
Fits 39 of 39 airlines
See it on Aer's sitePrices change often. Sizes from aersf.com, checked October 29, 2026.
What to know before you buy
- Aer lists 19.25 x 12.75 x 8 in (49 x 32 x 20 cm), 3.52 lb and 28 L.
- Too tall for a free under-seat allowance on most budget airlines, but well inside overhead carry-on limits.
Which airlines does it fit as a carry-on?
| Airline | Carry-on limit | Verdict | Tightest side | Weight limit |
|---|---|---|---|---|
| ANA (All Nippon Airways) | 55 x 40 x 25 cm | Fits | 5 cm spare | 10 kg (22 lb) |
| AirAsia | 56 x 36 x 23 cm | Fits | 3 cm spare | 7 kg (15 lb) |
| Japan Airlines (JAL) | 55 x 40 x 25 cm | Fits | 5 cm spare | 10 kg (22 lb) |
| Singapore Airlines | 115 cm total | Fits | 14 cm spare | 7 kg (15 lb) |
| Vietjet Air | 56 x 36 x 23 cm | Fits | 3 cm spare | 7 kg (15 lb) |
| Vietnam Airlines | 56 x 36 x 23 cm | Fits | 3 cm spare | — |
| Aer Lingus | 21.5 x 15.5 x 9.5 in | Fits | 1.5 in spare | 22 lb (10 kg) |
| Air France | 21.7 x 13.8 x 9.9 in | Fits | 1.1 in spare | 26 lb (12 kg) |
| British Airways | 22 x 18 x 10 in | Fits | 2 in spare | — |
| Iberia | 56 x 40 x 25 cm | Fits | 5 cm spare | 10 kg (22 lb) |
| Jet2 | 56 x 45 x 25 cm | Fits | 5 cm spare | 10 kg (22 lb) |
| KLM | 55 x 35 x 25 cm | Fits | 3 cm spare | 12 kg (26 lb) |
| Lufthansa | 55 x 40 x 23 cm | Fits | 3 cm spare | 8 kg (18 lb) |
| Ryanair | 55 x 40 x 20 cm | Fits | exactly at the limit | 10 kg (22 lb) |
| Turkish Airlines | 55 x 40 x 23 cm | Fits | 3 cm spare | 8 kg (18 lb) |
| Vueling | 55 x 40 x 20 cm | Fits | exactly at the limit | 10 kg (22 lb) |
| Wizz Air | 55 x 40 x 23 cm | Fits | 3 cm spare | 10 kg (22 lb) |
| easyJet | 56 x 45 x 25 cm | Fits | 5 cm spare | — |
| Avianca | 55 x 35 x 25 cm | Fits | 3 cm spare | 10 kg (22 lb) |
| Copa Airlines | 22 x 14 x 10 in | Fits | 1.2 in spare | 22 lb (10 kg) |
| LATAM Airlines | 21.7 x 13.8 x 9.8 in | Fits | 1.1 in spare | 26 lb (12 kg) |
| Volaris | 55 x 40 x 25 cm | Fits | 5 cm spare | 10 kg (22 lb) |
| Emirates | 55 x 38 x 22 cm | Fits | 2 cm spare | 7 kg (15 lb) |
| Qatar Airways | 50 x 37 x 25 cm | Fits | 1 cm spare | 7 kg (15 lb) |
| Air Canada | 21.5 x 15.5 x 9 in | Fits | 1 in spare | — |
| Alaska Airlines | 22 x 14 x 9 in | Fits | 1 in spare | — |
| Allegiant Air | 22 x 16 x 10 in | Fits | 2 in spare | — |
| American Airlines | 22 x 14 x 9 in | Fits | 1 in spare | — |
| Breeze Airways | 22 x 14 x 9 in | Fits | 1 in spare | 35 lb (15.9 kg) |
| Delta Air Lines | 22 x 14 x 9 in | Fits | 1 in spare | — |
| Frontier Airlines | 24 x 16 x 10 in | Fits | 2 in spare | 35 lb (15.9 kg) |
| JetBlue | 22 x 14 x 9 in | Fits | 1 in spare | — |
| Porter Airlines | 21.5 x 15.5 x 9 in | Fits | 1 in spare | — |
| Southwest Airlines | 24 x 16 x 10 in | Fits | 2 in spare | — |
| United Airlines | 22 x 14 x 9 in | Fits | 1 in spare | — |
| WestJet | 22 x 14 x 9 in | Fits | 1 in spare | — |
| Air New Zealand | 21 x 16 x 9 in | Fits | 1 in spare | 15 lb (7 kg) |
| Jetstar | 56 x 36 x 23 cm | Fits | 3 cm spare | 7 kg (15 lb) |
| Qantas | 22 x 14 x 9 in | Fits | 1 in spare | 15 lb (7 kg) |
Compared side by side in the unit each airline publishes, largest side first. "Spare" is the room left on the tightest side.
Specs
| Listed outside size | 19.25 x 12.75 x 8 in (about 49 x 32 x 20 cm) |
|---|---|
| Includes wheels and handles? | Not stated by the maker |
| Linear size (L + W + H) | 40 in (101 cm) |
| Empty weight | 3.5 lb (1.59 kg) |
| Capacity | 28 L |
| Type | Travel backpack |
| Brand | Aer |
Questions people ask
What size is the Aer Travel Pack 4 28L?
The maker lists 19.25 x 12.75 x 8 in (about 49 x 32 x 20 cm).
Which airlines does the Aer Travel Pack 4 28L fit?
On paper it fits the carry-on limit of 39 of the 39 airlines we track that publish a size.
How much does the Aer Travel Pack 4 28L weigh?
3.5 lb (1.59 kg) empty.
Researched from the maker's published specifications, not measured by us. Listings change, so check the size on the product page before you buy.
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