Aer Lingus pet policy — why pets cannot travel in the cabin

Aer Lingus does not accept pets in the cabin, so no carrier size will make it work — this is a policy limit, not a size limit. Aer Lingus does not publish a cabin-pet fee on its own policy page. Your options are Aer Lingus's cargo service or an approved pet shipper. If you need your pet with you in the cabin, you need a different airline.

Aer Lingus does not accept pets in the cabin

Aer Lingus does not accept pets in the cabin, so there is no carrier height to compare. Its own policy covers cargo or approved pet-shipper options instead.

Aer Lingus pet rules

Source: official Aer Lingus pet policy · verified 2026-10-03 · every airline ranked on fee and space →

Airlines that do allow pets in the cabin

A cabin ban is a policy limit, not a size limit, so no carrier changes it. Aer Lingus’s own published route: Pets travel only in the aircraft hold, booked through a pet agent at IAG Cargo; pets brought to an Aer Lingus check-in desk are not accepted

If the cabin is the requirement rather than the route, these are the airlines we track that do allow it, ranked by how many of our tracked carriers clear their published limit. We do not know your route, so treat this as a reference rather than a substitution:

• Pegasus Airlines — 19.7 × 12.6 × 12.6 in · 14 of 15 carriers clear it
• Saudia — 21 × 16 × 13 in · 14 of 15 carriers clear it
• Allegiant Air — 18 × 12 × 11 in · 11 of 15 carriers clear it
• Frontier Airlines — 18 × 14 × 11 in · 11 of 15 carriers clear it
• American Airlines — 18 × 11 × 11 in · 9 of 15 carriers clear it
• American Eagle (regional, incl. Republic Airways) — 18 × 11 × 11 in · 9 of 15 carriers clear it
• Copa Airlines — 18 × 11 × 11 in · 9 of 15 carriers clear it
• Delta Air Lines — 18 × 11 × 11 in · 9 of 15 carriers clear it

Carrier sizes we track

None of these can be used in an Aer Lingus cabin. They are listed so you can size up for whichever airline you switch to.

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

This table ranks by Aer Lingus’s size limit — not by your pet. The weight under each carrier is what that size is rated to hold. A bag can clear the airline and still be the wrong size for the animal, which is the most common reason one goes back — measure your pet first →

Carrier	Size	Fit	Buy
Sherpa Original Deluxe (Small) up to ~8 lb · max pet 13″ long × 7.5″ tall	15 × 10 × 8.5 in	No cabin pets	See on Amazon →
Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb	17 × 11 × 9 in	No cabin pets	See on Amazon →
Mr. Peanut's Gold Series Standard (Expandable) up to ~20 lb	18 × 11 × 10 in	No cabin pets	See on Amazon →
Petmate Soft-Sided Kennel Cab (Medium) up to ~10 lb	17 × 10 × 10 in	No cabin pets	See on Amazon →
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall	17 × 11 × 10.5 in	No cabin pets	See on Amazon →
Sleepypod Air up to ~18 lb	22 × 10.5 × 10.5 in	No cabin pets	See on Amazon →
Diggs Passenger pet size not published · Diggs discontinued this carrier — link goes to similar carriers	17 × 12 × 10.5 in	No cabin pets	Search Amazon →
ibiyaya JetPaw Expandable Backpack up to ~17 lb	18 × 12 × 10.5 in	No cabin pets	See on Amazon →
Sleepypod Atom up to ~12 lb	17 × 8.5 × 10.5 in	No cabin pets	See on Amazon →
Away The Pet Carrier pets up to ~18 lb	18.7 × 10.8 × 10.75 in	No cabin pets	Search Amazon →
Petsfit (Medium) Expandable Soft-Sided up to ~13 lb	17 × 11 × 11 in	No cabin pets	See on Amazon →
Bergan Comfort Carrier (Small) pet size not published	16 × 8 × 11 in	No cabin pets	See on Amazon →
Frisco Premium Airline-Compliant Carrier up to ~22 lb	18 × 11 × 11 in	No cabin pets	Search Amazon →
Sherpa Original Deluxe (Large) up to ~22 lb · max pet 18″ long × 10.5″ tall	19 × 11.75 × 11.5 in	No cabin pets	See on Amazon →
SturdiBag Pro (Large, Flexible Height) pet size not published	18 × 11.5 × 11.5 in	No cabin pets	See on Amazon →

How to confirm your actual under-seat space

Aer Lingus's number is its published maximum, not a guarantee for your exact seat. Before you buy or fly:

1. Check which aircraft operates your flight (in your booking or on a seat-map site).
2. Avoid bulkhead and exit rows — bulkheads have no under-seat storage and most airlines ban pets there — and check this airline's seat rules above.
3. Call Aer Lingus to confirm under-seat dimensions for that aircraft, or
4. Choose a collapsible / flexible-height carrier that adapts to a tighter space.

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