Delta Air Lines in-cabin pet policy — and the carriers that fit
Delta Air Lines allows small pets in the cabin in a carrier up to 18 × 11 × 11 in. Below: the official rules (cited), the honest under-seat caveat, and which carriers fit that limit.
⚠️ Delta Air Lines states under-seat space varies by aircraft. Delta explicitly states under-seat space varies by aircraft and that 18×11×11 is a recommendation that fits most aircraft — not a per-flight guarantee. Check the aircraft on your specific flight. Here's how to confirm yours →
Delta Air Lines pet rules
| Recommended max carrier (soft) | 18 × 11 × 11 in |
| Soft-sided required? | Yes |
| In-cabin fee | $150 each way (within US/Canada/Puerto Rico/USVI); $200 international |
| Species allowed | small dogs, cats, household birds |
| Pets | Delta First 2 · Comfort/Main 4 · pet + carrier must fit fully under the seat |
| Booking | Call Delta Reservations to add your pet before travel |
Source: official Delta Air Lines pet policy · verified 2026-07-03
Carriers that fit Delta Air Lines
Matched to Delta Air Lines's published 18 × 11 × 11 in limit (height checked strictly; footprint may rotate). See the full Delta Air Lines carrier shortlist →
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How to confirm your actual under-seat space
Delta Air Lines's number is a fleet-wide recommendation, not a promise for your exact seat. Before you buy or fly:
- Check which aircraft operates your flight (in your booking or on a seat-map site).
- Avoid bulkhead and some window seats — they have less (or no) under-seat storage.
- Call Delta Air Lines to confirm under-seat dimensions for that aircraft, or
- Choose a collapsible / flexible-height carrier that adapts to a tighter space.
More airlines: JetBlue · American · United · Southwest · Alaska · Frontier · all →