Airport Accelerator 41L

Think Tank Airport Accelerator 41L is a 41L, 2.8kg6.2lb travel backpack measuring 49.5×34×26cm19.5×13.5×10in. It fits the carry-on size limit of 1 of 36 major airlines and the personal-item limit of 0 of 26. Under the seat, its 26cm10.2in side is over the 20cm7.9in limit at 15 of the 26 airlines it misses. Specs from thinktankphoto.com, checked September 2026.

Volume: 41Lfixed size
Weight: 2.8kg6.2lb6.2lb2.8kg
Carry-on: 1/36airlines fit it
Personal item: 0/26under-seat limits

Dimensions: 49.5×34×26cm19.5×13.5×10in 19.5×13.5×10in49.5×34×26cm
Price: $329.75 as of September 2026
Laptop: up to 16"
Opening: n/a
Warranty: Lifetime Covers defects in materials and workmanship, not normal wear, accidents or cosmetic issues.
Compartments: n/a
Bottle pockets: 2

Price history

$329.75 at every weekly check since Oct 5, 2026 (3 checks).

Checked weekly on the brand's US store.

Organizer
Rain cover
Hip belt (removable)
Luggage pass-through
Camera compartment

Material: 600D polyester, 1260D ballistic nylon, 420D nylon ripstop, DWR

Locking YKK RC Fuse zips with integrated cable lock
Full-width divider splits camera gear from personal items
Rear-panel laptop access
Depth 20 to 26 cm; the larger figure is used

Compare with…

Report wrong data

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

Does the Think Tank Airport Accelerator 41L fit airline carry-on limits?

Draw against

Too bigToo big 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	Too bigToo big	Too bigToo big	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
Air CanadaCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
Air FranceCabin bag not on every fare	Too bigToo big	Too bigToo big	9.2kg to pack (of 12kg shared with personal item)20.3lb to pack (of 26.5lb shared with personal item)
Air India	Too bigToo big	No published limit	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
AirAsia	Too bigToo big	Too bigToo big	4.2kg to pack (of 7kg shared with personal item)9.3lb to pack (of 15.4lb shared with personal item)
Alaska Airlines	Too bigToo big	No published limit	No published limitNo published limit
Allegiant AirCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
American Airlines	Too bigToo big	Too bigToo big	No published limitNo published limit
ANA (All Nippon Airways)	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg shared with personal item)15.9lb to pack (of 22lb shared with personal item)
AviancaCabin bag not on every fare	Too bigToo big	No published limit	7.2kg to pack (of 10kg)15.9lb to pack (of 22lb)
British Airways	Too bigToo big	Too bigToo big	No published limitNo published limit
Cebu Pacific	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg shared with personal item)15.9lb to pack (of 22lb shared with personal item)
Delta Air Lines	Too bigToo big	No published limit	No published limitNo published limit
easyJetCabin bag not on every fare	Too bigToo big	Too bigToo big	12.2kg to pack (of 15kg)26.9lb to pack (of 33.1lb)
Emirates	Too bigToo big	No published limit	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
Frontier AirlinesCabin bag not on every fare	Too bigToo big	Too bigToo big	13.1kg to pack (of 15.9kg)28.9lb to pack (of 35.1lb)
Gol Linhas Aereas	Too bigToo big	No published limit	7.2kg to pack (of 10kg)15.9lb to pack (of 22lb)
IndiGo	Too bigToo big	No published limit	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
JetBlue Airways	Too bigToo big	Too bigToo big	No published limitNo published limit
KLMCabin bag not on every fare	Too bigToo big	Too bigToo big	9.2kg to pack (of 12kg shared with personal item)20.3lb to pack (of 26.5lb shared with personal item)
LATAM Airlines	Too bigToo big	Too bigToo big	9.2kg to pack (of 12kg)20.3lb to pack (of 26.5lb)
LufthansaCabin bag not on every fare	Too bigToo big	Too bigToo big	5.2kg to pack (of 8kg)11.5lb to pack (of 17.6lb)
Norwegian Air ShuttleCabin bag not on every fare	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg shared with personal item)15.9lb to pack (of 22lb shared with personal item)
Qantas	Too bigToo big	No published limit	4.2kg to pack (of 7kg shared with personal item)9.3lb to pack (of 15.4lb shared with personal item)
Qatar Airways	Too bigToo big	No published limit	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
RyanairCabin bag not on every fare	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg)15.9lb to pack (of 22lb)
SAS	Too bigToo big	Too bigToo big	5.2kg to pack (of 8kg)11.5lb to pack (of 17.6lb)
Singapore Airlines	FitsFits	Too bigToo big	4.2kg to pack (of 7kg)9.3lb to pack (of 15.4lb)
Southwest Airlines	Too bigToo big	No published limit	No published limitNo published limit
Turkish Airlines	Too bigToo big	Too bigToo big	5.2kg to pack (of 8kg)11.5lb to pack (of 17.6lb)
United AirlinesCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
Vietjet Air	Too bigToo big	Too bigToo big	4.2kg to pack (of 7kg shared with personal item)9.3lb to pack (of 15.4lb shared with personal item)
VolarisCabin bag not on every fare	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg)15.9lb to pack (of 22lb)
VuelingCabin bag not on every fare	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg)15.9lb to pack (of 22lb)
WestJetCabin bag not on every fare	Too bigToo big	Too bigToo big	No published limitNo published limit
Wizz AirCabin bag not on every fare	Too bigToo big	Too bigToo big	7.2kg to pack (of 10kg)15.9lb 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 2.8kg6.2lb. Limits and sources. Own a different bag? Check it against every airline.