---
url: "https://onebag.travel/compare/kq4hid7zll/tom-bihn-aeronaut-45l/mx0u6a16g0/millican-smith-15l/"
title: "Tom Bihn Aeronaut 45L vs Millican Smith 15L - One Bag Travel"
description: "Tom Bihn Aeronaut 45L vs Millican Smith 15L: capacity, weight, dimensions and how many airlines accept each as a carry-on, side by side."
source: "https://onebag.travel/compare/kq4hid7zll/tom-bihn-aeronaut-45l/mx0u6a16g0/millican-smith-15l/"
---
1.  [Home](https://onebag.travel/)
2.  [Carry-On Travel Backpacks](https://onebag.travel/carryons/)
3.  Tom Bihn Aeronaut 45L vs. Millican Smith 15L

# Tom Bihn Aeronaut 45L vs. Millican Smith 15L

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

## [Tom Bihn Aeronaut 45L](https://onebag.travel/carryon/kq4hid7zll/tom-bihn-aeronaut-45l/)

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

![Front facing view of the Tom Bihn Aeronaut 45L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601602491/carryons/tomaero45_hv7dhp.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>45 L</td></tr><tr><td>Weight</td><td>1.4 kg</td></tr><tr><td>Dimensions</td><td>56×36×23 cm</td></tr><tr><td>Airline fit</td><td>45%</td></tr><tr><td>Price</td><td>$340</td></tr></tbody></table>

## Feature by feature

| Tom Bihn Aeronaut 45L | Feature | Millican Smith 15L |
| --- | --- | --- |
| Storage |
| N | Compression | N |
| None | Expanded Capacity | None |
| 1 | Opening | 2 |
| side | Passport | side |
| N | Passthrough | N |
| Carry |
| hideable | Backpack | Y |
| removable | Hip Belt | removable |
| removable | Sternum Strap | removable |
| Inside |
| N | Laptop | 13in |
| 5 | Main Compartments | 3 |
| N | Organizer | N |
| Outside |
| × | Hard Shell | × |
| N | Rain-fly | N |
| N | Water Bottle Holder | N |
| Y | Water Resistant | Y |

<table class="cmp-material"><tbody><tr><td colspan="2">Material</td></tr><tr><td>1050 denier ballistic nylon OR ultralight 400d Halcyon/420d nylon ripstop 200 denier Halcyon/nylon ripstop fabric lining</td><td>Weatherproof Bionic Canvas</td></tr></tbody></table>

## [Millican Smith 15L](https://onebag.travel/carryon/mx0u6a16g0/millican-smith-15l/)

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

![Front facing view of the Millican Smith 15L](https://res.cloudinary.com/obt/image/upload/c_fill,w_400/v1601121629/carryons/millicansmith_h95dgj.webp)

<table class="table table-sm cmp-spec mt-2"><tbody><tr><td>Capacity</td><td>15 L</td></tr><tr><td>Weight</td><td>0.8 kg</td></tr><tr><td>Dimensions</td><td>45×28×10 cm</td></tr><tr><td>Airline fit</td><td>96%</td></tr><tr><td>Price</td><td>$115</td></tr></tbody></table>

## Key differences between the Tom Bihn Aeronaut 45L and Millican Smith 15L

-   **Opening:** Clamshell on the Tom Bihn Aeronaut 45L; Rolltop on the Millican Smith 15L.
-   **Backpack straps:** Hideable on the Tom Bihn Aeronaut 45L; Yes on the Millican Smith 15L.
-   **Laptop sleeve:** No on the Tom Bihn Aeronaut 45L; 13in on the Millican Smith 15L.
-   **Main compartments:** 5 on the Tom Bihn Aeronaut 45L; 3 on the Millican Smith 15L.

Both have: passport pocket, hip belt, sternum strap, water resistant.

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

We checked both bags against the carry-on size limits of 189 airlines. 85 accept both. 0 accept only the Tom Bihn Aeronaut 45L, and 96 accept only the Millican Smith 15L.

### Only the Millican Smith 15L fits

Aer Lingus, Aeroflot, Aerolineas Argentinas, Aeromexico, Air Baltic, Air Canada, Air Caraibes, Air China, Air France, Air India, Air Malta, Air Mauritius, Air Niugini, Air Serbia, Air Seychelles, Air Tahiti, All Nipon Airways, American Eagle, ANA, Asiana Airlines, ATA Airlines, Austrian, Azerbaijan Airlines, Belavia, Blue Air, Boliviana de Aviacion, Brussels Airlines, Bulgaria Air, Caribbean Airlines, Cayman Airways, China Eastern, Croatia Air, Czech Airlines, easyJet, Emirates Airlines, Enter Air, Ethiopian Airlines, Etihad Airways, Eurowings, Fiji Airways, Flair Air, flybe, Gol Linhas Aereas, Great Lakes Airlines, Gulf Air, Iberia, Icelandair, Indigo, InselAir, Interjet, Iran Air, Japan Airlines, Jet Airways, Juneyao Airlines, Kenya Airways, KLM, LATAM , Liat Airlines, LOT Polish, Lufthansa, Luxair, Mahan Air, Meridiana Fly, Mesa Airlines, Nordwind Airlines, Norwegian, Oman Air, Pakistan International, Peach, Porter Airlines, Qatar Airways, Ravn Alaska, Regional Express, Royal Brunei Airlines, Royal Jordanian, Ryanair, S7, SAS Scandinavian, Scoot, Shandong Airlines, Shenzhen Airlines, Sky Airlines, Sun Express, Swiss Int'l Air Lines, TAP Air Portugal, TAROM, Tianjin Airlines (A320 & E190), Tiger Airways, TUI, Turkish Airlines, Ukraine International, VIM Airlines (Closed), Virgin Australia, Volotea, WestJet, Xiamen.

## Tom Bihn Aeronaut 45L vs. Millican Smith 15L: which should you pack?

The **Tom Bihn Aeronaut 45L** carries 30L more than the **Millican Smith 15L** (45L vs. 15L), while the **Millican Smith 15L** is the lighter pack at 0.8kg (vs. 1.4kg). For carry-on flexibility, the **Millican Smith 15L** fits 96% of the airlines we track — the higher of the two. If you prioritise packing volume, choose the Tom Bihn Aeronaut 45L; if you want to travel lighter, the Millican Smith 15L is the better call.