Aeronaut 30

Tom Bihn Aeronaut 30 is a 30L, 1.2kg2.6lb travel backpack measuring 32×50×20cm12.5×19.5×8in. It fits the carry-on size limit of 36 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 50cm19.7in side is over the 40cm15.7in limit at 12 of the 26 airlines it misses. Specs from tombihn.com, checked September 2026.

Volume: 30Lfixed size
Weight: 1.2kg2.6lb2.6lb1.2kg
Carry-on: 36/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 32×50×20cm12.5×19.5×8in 12.5×19.5×8in32×50×20cm
Price: $345 as of September 2026
Laptop: no laptop sleeve
Opening: Clamshell, clamshell (U-shape)
Warranty: Lifetime Fixes faults free of charge, wear and tear repairs are done at a reasonable charge.
Compartments: 5
Bottle pockets: 0

Price history

$345 at every weekly check since Oct 5, 2026 (3 checks).

Checked weekly on the brand's US store.

Water-resistant
Sternum strap
Shoulder strap

Material: 630d bluesign-certified ballistic nylon exterior, 200d Halcyon nylon ripstop interior (default Aubergine Ballistic colorway)

Three-way carry: backpack, duffel, or shoulder bag (separate $40 Absolute Shoulder Strap accessory needed for shoulder-bag mode)
Two general-purpose quick-access pockets (not dedicated water-bottle pockets) can hold a small bottle
YKK Racquet-Coil water-repellent zippers
Weight varies 1090-1295g depending on fabric chosen; 1170g (630d Ballistic) is the default swatch shown

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Last checked: 2026-09. Prices and specs may have changed.

Does the Tom Bihn Aeronaut 30 fit airline carry-on limits?

Draw against

Cabin bag, tight (no spare)Cabin bag, tight (no spare) on Ryanair. cabin bag 55×40×20cm21.5×15.5×8in · under the seat 40×30×20cm15.5×12×8in. Bag in cminches, turned to fit.

Flag as a tight fit undercm spare

Airline	Carry-on	Personal item	Cabin-bag weight
Air Arabia	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	FitsFits	Too bigToo big	10.8kg to pack (of 12kg shared with personal item)23.8lb to pack (of 26.5lb shared with personal item)
Air India	Tight fit (no spare)Tight fit (no spare)	No published limit	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
AirAsia	FitsFits	Too bigToo big	5.8kg to pack (of 7kg shared with personal item)12.8lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	FitsFits	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
American Airlines	FitsFits	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	FitsFits	Too bigToo big	8.8kg to pack (of 10kg shared with personal item)19.4lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	FitsFits	No published limit	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)
British Airways	FitsFits	Too bigToo big	No published limitNo published limit
Cebu Pacific	FitsFits	Too bigToo big	8.8kg to pack (of 10kg shared with personal item)19.4lb to pack (of 22lb shared with personal item)
Delta Air Lines	FitsFits	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	FitsFits	Too bigToo big	13.8kg to pack (of 15kg)30.4lb to pack (of 33.1lb)
Emirates	FitsFits	No published limit	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	14.7kg to pack (of 15.9kg)32.4lb to pack (of 35.1lb)
Gol Linhas Aereas	FitsFits	No published limit	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)
IndiGo	FitsFits	No published limit	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
JetBlue Airways	FitsFits	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	FitsFits	Too bigToo big	10.8kg to pack (of 12kg shared with personal item)23.8lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	FitsFits	Too bigToo big	10.8kg to pack (of 12kg)23.8lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	FitsFits	Too bigToo big	6.8kg to pack (of 8kg)15lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	FitsFits	Too bigToo big	8.8kg to pack (of 10kg shared with personal item)19.4lb to pack (of 22lb shared with personal item)
Qantas	FitsFits	No published limit	5.8kg to pack (of 7kg shared with personal item)12.8lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Tight fit (no spare)Tight fit (no spare)	No published limit	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)
SAS	FitsFits	Too bigToo big	6.8kg to pack (of 8kg)15lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	5.8kg to pack (of 7kg)12.8lb to pack (of 15.4lb)
Southwest Airlines	FitsFits	No published limit	No published limitNo published limit
Turkish Airlines	FitsFits	Too bigToo big	6.8kg to pack (of 8kg)15lb to pack (of 17.6lb)
United AirlinesCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Vietjet Air	FitsFits	Too bigToo big	5.8kg to pack (of 7kg shared with personal item)12.8lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	FitsFits	Too bigToo big	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)
VuelingCabin bag not on every fare	Tight fit (no spare)Tight fit (no spare)	Too bigToo big	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)
WestJetCabin bag not on every fare	FitsFits	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	FitsFits	Too bigToo big	8.8kg to pack (of 10kg)19.4lb to pack (of 22lb)

Compared in any orientation against each airline's published size limit. A tight fit has under 2cm to spare, so a packed soft bag may not pass a sizer. Set it to 0 to turn the warning off. Weight is what the airline allows in the cabin minus this bag's empty 1.2kg2.6lb. Limits and sources. Own a different bag? Check it against every airline.