which carrier fits your airline

Diggs Passenger — dimensions & which airlines it fits

Diggs Passenger: 17 × 12 × 10.5 in external. Structured, well-ventilated design; sits within the 18×11×11 airlines but its 10.5" height rules out the 8.5" airlines.

Last verified 2026-07-03 · soft-sided

Specs

External size (L×W×H)17 × 12 × 10.5 in
Typesoft-sided

Dimensions from the manufacturer product page · verified 2026-07-03

See on Amazon →

Affiliate link — we may earn a small commission at no extra cost to you. It never changes our specs or which carriers we list.

Which airlines does the Diggs Passenger fit?

Compared against each airline's published under-seat limit (height strict; footprint may rotate). Green = within the published size; amber = fits only when collapsed / flexed; grey = over.

AirlineIts limitThis carrier
Frontier Airlines18 × 14 × 11 inFits
JetBlue17 × 12.5 × 8.5 inToo tall (10.5" > 8.5")
Southwest Airlines18.5 × 13.5 × 8.5 inToo tall (10.5" > 8.5")
Air Canada17 × 16 × 8 inToo tall (10.5" > 8")
Delta Air Lines18 × 11 × 11 inToo big
American Airlines18 × 11 × 11 inToo big
United Airlines18 × 11 × 11 inToo big
Alaska Airlines17 × 11 × 9.5 inToo big
⚠️ "Fits" here means it's within the published maximum — the actual space under your seat varies by aircraft. See why →

Compare carriers: all carriers · fit for a specific airline: Delta · JetBlue · American · United · Southwest