Sizeproof
Pakt · carry-on

Does the Pakt The Travel Backpack 35L fit as a carry-on?

By its listed size it fits 32 of 38 airlines that publish a carry-on limit, is borderline on 2 and is too big for 4.

Size and specs

Listed size55 × 32 × 21 cm (21.7 × 12.6 × 8.3 in)
Expanded55 × 32 × 28 cm (21.7 × 12.6 × 11 in)
Volume35 L
Empty weight4.1 lb (1.9 kg)
Laptop sleeveup to 16 in
Wheelsnone
List price$325 (seen 2026-10-19)
The brand doesn't say whether this is the outside size.Fits only when the expansion zip is closed.

Against the usual US limit

05101520in FrontSide

Dashed and yellow: American Airlines' carry-on limit, 22 × 14 × 9 in. Coloured: this bag's listed size.

Every airline

Airlinecarry-on limitThis bag
United States
Alaska Airlines22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Allegiant Air10 × 16 × 22 in (25 × 41 × 56 cm)Fits 0.3 in to spare
American Airlines22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Avelo Airlines22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Breeze Airways22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Delta Air Lines22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Frontier Airlines24 × 16 × 10 in (61 × 41 × 25 cm)Fits 1.7 in to spare
Hawaiian Airlines22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
JetBlue22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Southwest Airlines24 × 16 × 10 in (61 × 41 × 25 cm)Fits 1.7 in to spare
Sun Country Airlines24 × 16 × 11 in (61 × 41 × 28 cm)Fits 2.3 in to spare
United Airlines9 × 14 × 22 in (23 × 36 × 56 cm)Fits 0.3 in to spare
Canada & Mexico
Aeromexico55 × 40 × 25 cm (21.7 × 15.7 × 9.8 in)Fits right at the limit
Air Canada9 × 15.5 × 21.5 in (23 × 39 × 55 cm)Borderline 0.2 in over, too tall
Porter Airlines21.5 × 15.5 × 9 in (55 × 39 × 23 cm)Borderline 0.2 in over, too tall
Viva Aerobus22 × 16 × 10 in (56 × 41 × 25 cm)Fits 0.3 in to spare
Volaris55 × 40 × 25 cm (21.7 × 15.7 × 9.8 in)Fits right at the limit
WestJet22 × 14 × 9 in (56 × 36 × 23 cm)Fits 0.3 in to spare
Latin America
Avianca55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in)Fits right at the limit
Copa Airlines56 × 36 × 26 cm (22 × 14.2 × 10.2 in)Fits 0.4 in to spare
LATAM Airlines55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in)Fits right at the limit
Europe
Aer Lingus55 × 40 × 24 cm (21.7 × 15.7 × 9.4 in)Fits right at the limit
Air France55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in)Fits right at the limit
British Airways56 × 45 × 25 cm (22 × 17.7 × 9.8 in)Fits 0.4 in to spare
easyJet56 × 45 × 25 cm (22 × 17.7 × 9.8 in)Fits 0.4 in to spare
Iberia56 × 40 × 25 cm (22 × 15.7 × 9.8 in)Fits 0.4 in to spare
Icelandair55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in)Too big 0.4 in over, too deep
KLM55 × 35 × 25 cm (21.7 × 13.8 × 9.8 in)Fits right at the limit
Lufthansa55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in)Fits right at the limit
Ryanair55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in)Too big 0.4 in over, too deep
Turkish Airlines23 × 40 × 55 cm (9.1 × 15.7 × 21.7 in)Fits right at the limit
Virgin Atlantic23 × 36 × 56 cm (9.1 × 14.2 × 22 in)Fits 0.4 in to spare
Vueling55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in)Too big 0.4 in over, too deep
Wizz Air55 × 40 × 23 cm (21.7 × 15.7 × 9.1 in)Fits right at the limit
Middle East & Asia-Pacific
Emirates55 × 38 × 22 cm (21.7 × 15 × 8.7 in)Fits right at the limit
Japan Airlines55 × 40 × 25 cm (21.7 × 15.7 × 9.8 in)Fits right at the limit
Qantas56 × 36 × 23 cm (22 × 14.2 × 9.1 in)Fits 0.4 in to spare
Qatar Airways50 × 37 × 25 cm (19.7 × 14.6 × 9.8 in)Too big 2 in over, too tall

"Borderline" means over by no more than the rounding in published sizes (0.5 cm, about 0.2 in). It may pass at the gate, but we don't promise it.

Where these numbers come from

Notes from our data check

Brand 'Measurements & dimensions': '35L 4.1lbs / 55 x 32 x 21 cm; 21.5 x 12.5 x 8 in' and 'The expansion compartment adds 7 cm of depth to both bags. Width and height remain unchanged.' expandedDims are computed from that statement: 21 + 7 = 28 cm deep, and 8 in + 2.76 in = 10.8 in deep. CONFLICT on the same page: 8 in = 20.3 cm, but the cm figure is 21 cm; both stored as published. Pakt: 'This bag is carry-on compliant with most major airlines, even though the dimensions may not be within limits... we don't strictly adhere to them because soft luggage is malleable.' The 45L size (60 x 33 x 24 cm / 23 x 13 x 9 in, 4.4 lb, $345, sold out) is over most limits and was not added. The page says 'The best-selling carry-on is back and better than ever', so this may be a newer version than Pack Hacker's V2 review. The Pakt One Travel Backpack 35L+ (19.5 x 12.5 x 9 in / 50 x 32 x 23 cm, 3.6 lb, $349) is a different bag. Price $325 (Black and Forest in stock). Amazon not checked. Derived values: kg from lb. The page gives 21 cm and 8 in for the depth; we use the cm figures, which are the larger.