Alaska Horizon (Horizon Air) in-cabin pet policy — and the carriers that fit
Alaska Horizon (Horizon Air) allows small pets in the cabin in a carrier up to 17 × 11 × 9.5 in, soft-sided, stowed under the seat in front of you. Already own a carrier? Enter its measurements below to check it against this limit. The in-cabin fee is $100 each way per kennel/carrier ($35 if traveling wholly within the State of Hawai'i), subject to space. 2 of the 15 carriers we track clear that published limit.
The Sherpa Original Deluxe (Small) leaves the most room — 1" on its tightest dimension, while the Mr. Peanut's Gold Series Mini (Low-Profile) only just squeaks in with nothing to spare. Alaska Horizon (Horizon Air)'s 9.5" height ceiling sits mid-pack among the 77 airlines we track (shared with Alaska, Hawaiian): Aegean, Air Europa, Air Transat and Allegiant allow more, while EL AL Israel allows only 7".
Will your carrier fit Alaska Horizon (Horizon Air)?
Measure the outside of your carrier (bulges included) and enter it below. The check uses Alaska Horizon (Horizon Air)’s published 17 × 11 × 9.5 in limit — height is checked strictly, the footprint may rotate.
Carriers that clear Alaska Horizon (Horizon Air) (17 × 11 × 9.5 in)
Roomiest margin first. Sized to the airline’s limit, not to your pet — 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 | Fits 1" spare | See on Amazon → |
Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb | 17 × 11 × 9 in | Exact fit 0" spare | Not available on Amazon right now |
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See all 15 carriers checked against Alaska Horizon (Horizon Air) ↓
Alaska Horizon (Horizon Air) pet rules
| Max carrier size (published) | 17 × 11 × 9.5 in |
| Soft-sided required? | Yes |
| In-cabin fee | $100 each way per kennel/carrier ($35 if traveling wholly within the State of Hawai'i), subject to space · compare all airlines → |
| Species allowed | small dogs, house cats, rabbits, small household birds |
| Minimum age | At least 8 weeks and fully weaned (dogs, cats and rabbits) |
| Pets | Up to 2 pets of the same species and similar size in one carrier; a second carrier only if you buy a second ticket for the adjacent seat. The carrier counts toward your carry-on allowance: a pet carrier plus a personal item, or a pet carrier plus a standard-size carry-on (on flights within Hawaii it does not count). |
| Booking | Reserve before the day of travel: cabin pet space is limited and first-come, first-served. The passenger traveling with the pet must be at least 18, or under 18 and accompanied by a passenger who is 18 or older. · what to book, buy and pack → |
| Seating restrictions | Not in an emergency exit or bulkhead row; no pet carriers in Business Class on the A330 or 787. |
Source: official Alaska Horizon (Horizon Air) pet policy · verified 2026-10-09 · how Alaska Horizon (Horizon Air) ranks on fee and space →
Carriers that fit Alaska Horizon (Horizon Air)
Matched to Alaska Horizon (Horizon Air)'s published 17 × 11 × 9.5 in limit (height checked strictly; footprint may rotate). See the full Alaska Horizon (Horizon Air) carrier shortlist →
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 Alaska Horizon (Horizon Air)’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 | Fits 1" spare | See on Amazon → |
Mr. Peanut's Gold Series Mini (Low-Profile) up to ~15 lb | 17 × 11 × 9 in | Exact fit 0" spare | Not available on Amazon right now |
Sherpa Original Deluxe (Medium) up to ~16 lb · max pet 16″ long × 9.5″ tall | 17 × 11 × 10.5 in | Flexes — 1" over | See on Amazon → |
12 carriers too big for Alaska Horizon (Horizon Air)
Petmate Soft-Sided Kennel Cab (Medium) up to ~10 lb | 17 × 10 × 10 in | Too tall (10" > 9.5") | View on Amazon |
Sleepypod Atom up to ~12 lb | 17 × 8.5 × 10.5 in | Too tall (10.5" > 9.5") | View on Amazon |
Petsfit (Medium) Expandable Soft-Sided up to ~13 lb | 17 × 11 × 11 in | Too tall (11" > 9.5") | View on Amazon |
Bergan Comfort Carrier (Small) pet size not published | 16 × 8 × 11 in | Too tall (11" > 9.5") | View on Amazon |
Mr. Peanut's Gold Series Standard (Expandable) up to ~20 lb | 18 × 11 × 10 in | Too big | Not available on Amazon right nowIn stock and fits the same airlines: Petmate Soft-Sided Kennel Cab (Medium) |
Sleepypod Air up to ~18 lb | 22 × 10.5 × 10.5 in | Too big | View on Amazon |
Diggs Passenger pet size not published · Diggs discontinued this carrier — link goes to similar carriers | 17 × 12 × 10.5 in | Too big | Compare similar on Amazon → |
ibiyaya JetPaw Expandable Backpack up to ~17 lb | 18 × 12 × 10.5 in | Too big | View on Amazon |
Away The Pet Carrier pets up to ~18 lb | 18.7 × 10.8 × 10.75 in | Too big | Compare similar on Amazon → |
Frisco Premium Airline-Compliant Carrier up to ~22 lb | 18 × 11 × 11 in | Too big | Compare similar on Amazon → |
Sherpa Original Deluxe (Large) up to ~22 lb · max pet 18″ long × 10.5″ tall | 19 × 11.75 × 11.5 in | Too big | View on Amazon |
SturdiBag Pro (Large, Flexible Height) pet size not published | 18 × 11.5 × 11.5 in | Too big | Not available on Amazon right nowIn stock and fits the same airlines: Petmate Soft-Sided Kennel Cab (Medium) |
How to confirm your actual under-seat space
Alaska Horizon (Horizon Air)'s number is its published maximum, not a guarantee 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 exit rows — bulkheads have no under-seat storage and most airlines ban pets there — and check this airline's seat rules above.
- Call Alaska Horizon (Horizon Air) to confirm under-seat dimensions for that aircraft, or
- Choose a collapsible / flexible-height carrier that adapts to a tighter space.
More airlines: Air Canada · Alaska Airlines · Allegiant Air · American Airlines · Breeze Airways · Delta Air Lines · Frontier Airlines · Southwest Airlines · United Airlines · Asiana Airlines · Austrian Airlines · Avelo Airlines · all →
Common questions
What size pet carrier does Alaska Horizon (Horizon Air) allow in the cabin?
Alaska Horizon (Horizon Air)'s recommended maximum in-cabin carrier is 17 × 11 × 9.5 in. It must fit fully under the seat in front of you. Source: the Alaska Horizon (Horizon Air) pet policy.
How much does Alaska Horizon (Horizon Air) charge for an in-cabin pet?
$100 each way per kennel/carrier ($35 if traveling wholly within the State of Hawai'i), subject to space. Always confirm the current fee on the official Alaska Horizon (Horizon Air) pet page before you fly.
Which pet carriers fit Alaska Horizon (Horizon Air)?
2 of the 15 carriers we track clear Alaska Horizon (Horizon Air)'s published 17 × 11 × 9.5 in. The roomiest is the Sherpa Original Deluxe (Small), with 1" to spare on its tightest dimension. The heaviest pet any carrier that clears Alaska Horizon (Horizon Air) is rated for is 15 lb. Full shortlist: /fits/alaska-horizon/.
Does Alaska Horizon (Horizon Air) require a soft-sided pet carrier?
Yes — Alaska Horizon (Horizon Air) requires a soft-sided carrier in the cabin. Height is what rules carriers out: Alaska Horizon (Horizon Air) publishes 9.5", against 13" at the most generous airline we track.
How many pets can I bring in the cabin on Alaska Horizon (Horizon Air)?
Up to 2 pets of the same species and similar size in one carrier; a second carrier only if you buy a second ticket for the adjacent seat. The carrier counts toward your carry-on allowance: a pet carrier plus a personal item, or a pet carrier plus a standard-size carry-on (on flights within Hawaii it does not count). Species accepted: small dogs, house cats, rabbits, small household birds. Reserve before the day of travel: cabin pet space is limited and first-come, first-served. The passenger traveling with the pet must be at least 18, or under 18 and accompanied by a passenger who is 18 or older.