Does the Aer Travel Pack 3 fit British Airways's cabin bag limit?

Yes. The Aer Travel Pack 3 is within the British Airways cabin bag limit of 56 × 45 × 25 cm (22 × 18 × 10 in) on every side: height +1.5 cm, width +12.0 cm, depth +2.1 cm.

British Airways limit 56 × 45 × 25 cm (22 × 18 × 10 in) · British Airways baggage page, checked 2026-10-26Aer Travel Pack 3 21.5 × 13 × 9 in (54.5 × 33 × 21.5 cm) · maker’s page

Aer Travel Pack 3 in the British Airways sizer

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FRONTSIDE45 cm wide25 cm deep56 cm tall
British Airways cabin bag limitAer Travel Pack 3, as listedDrawn to scale
FRONTSIDE30 cm wide15 cm deep40 cm tall
British Airways · Handbag

Aer Travel Pack 3

Too bigNo. The Aer Travel Pack 3 is larger than the British Airways handbag limit of 40 × 30 × 15 cm (16 × 12 × 6 in) in height and width and depth: height −14.5 cm, width −3.0 cm, depth −7.9 cm.
LimitBagRoomHeight, cm4054.5−14.5 cmWidth, cm3033−3.0 cmDepth, cm1522.9−7.9 cmWeight, kgnone1.87—

Same size in every cabin.

Other bags for British Airways

BagVerdict
Osprey Farpoint 40Fits
Osprey Fairview 40Fits
Osprey Daylite Plus 20Fits
Cotopaxi Allpa 35LFits
Tortuga Pro Backpack 40LFits

Travel Pack 3 on other airlines

AirlineVerdict
DeltaFits
UnitedFits
AmericanFits
SouthwestFits
JetBlueFits
SpiritFits
FrontierFits
AllegiantFits
All 18 airlines for the Travel Pack 3

Questions

Is the Aer Travel Pack 3 allowed as British Airways cabin bag?

Yes. The Aer Travel Pack 3 is within the British Airways cabin bag limit of 56 × 45 × 25 cm (22 × 18 × 10 in) on every side: height +1.5 cm, width +12.0 cm, depth +2.1 cm.

Is the Aer Travel Pack 3 allowed as British Airways handbag?

No. The Aer Travel Pack 3 is larger than the British Airways handbag limit of 40 × 30 × 15 cm (16 × 12 × 6 in) in height and width and depth: height −14.5 cm, width −3.0 cm, depth −7.9 cm.