---
url: "https://onebag.travel/compare/th3li8ory7/deuter-utilion-30/ut39o0uw8z/aer-day-pack-3/"
title: "Deuter Utilion 30 vs Aer Day Pack 3 - One Bag Travel"
description: "Deuter Utilion 30 vs Aer Day Pack 3: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/th3li8ory7/deuter-utilion-30/ut39o0uw8z/aer-day-pack-3/"
---
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3.  Deuter Utilion 30 vs. Aer Day Pack 3

# Deuter Utilion 30 vs. Aer Day Pack 3

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

## [Deuter Utilion 30](https://onebag.travel/carryon/th3li8ory7/deuter-utilion-30/)

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

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>30 L</td></tr><tr><td>Weight</td><td>1.1 kg</td></tr><tr><td>Dimensions</td><td>51×31×18 cm</td></tr><tr><td>Airline fit</td><td>89%</td></tr><tr><td>Price</td><td>$155</td></tr></tbody></table>

## Feature by feature

| Deuter Utilion 30 | Feature | Aer Day Pack 3 |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 1 |
| front | Passport | top |
| N | Passthrough | Y |
| Carry |
| Y | Backpack | Y |
| optional | Hip Belt | N |
| Y | Sternum Strap | Y |
| Inside |
| 16in | Laptop | 16in |
| 3 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| 1, side | Water Bottle Holder | 1, side |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td></td><td>1680D Cordura® ballistic nylon exterior (bluesign® approved)</td></tr></tbody></table>

## [Aer Day Pack 3](https://onebag.travel/carryon/ut39o0uw8z/aer-day-pack-3/)

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

![Front facing view of the Aer Day Pack 3](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1788990291/carryons/aer-day-pack-3-ut39o0uw8z.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>14 L</td></tr><tr><td>Weight</td><td>1.3 kg</td></tr><tr><td>Dimensions</td><td>44×30×14 cm</td></tr><tr><td>Airline fit</td><td>95%</td></tr><tr><td>Price</td><td>$160</td></tr></tbody></table>

## Key differences between the Deuter Utilion 30 and Aer Day Pack 3

-   **Passport pocket:** Front on the Deuter Utilion 30; Top on the Aer Day Pack 3.
-   **Luggage passthrough:** No on the Deuter Utilion 30; Yes on the Aer Day Pack 3.
-   **Hip belt:** Optional on the Deuter Utilion 30; No on the Aer Day Pack 3.

Both have: backpack straps, sternum strap, laptop sleeve, water bottle pockets, water resistant.

## Which airlines take each bag as a carry-on

We checked both bags against the carry-on size limits of 189 airlines. 169 accept both. 0 accept only the Deuter Utilion 30, and 11 accept only the Aer Day Pack 3.

### Only the Aer Day Pack 3 fits

Air Niugini, Air Tahiti, American Eagle, Belavia, easyJet, Etihad Airways, Gulf Air, Qatar Airways, Ravn Alaska, Regional Express, Virgin Australia.

## Deuter Utilion 30 vs. Aer Day Pack 3: which should you pack?

The **Deuter Utilion 30** carries 16L more than the **Aer Day Pack 3** (30L vs. 14L), while the **Deuter Utilion 30** is the lighter pack at 1.1kg (vs. 1.3kg). For carry-on flexibility, the **Aer Day Pack 3** fits 95% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Deuter Utilion 30; if you want to travel lighter, the Deuter Utilion 30 is the better call.