United Airlines baggage rules

United lists a 22 × 14 × 9 in carry-on and a 17 × 10 × 9 in personal item that must fit under the seat.

Carry-on

56 × 36 × 23 cm

22 × 14.2 × 9.1 in

Weight limit
Not stated in our sources

Personal item

43 × 25 × 23 cm

16.9 × 9.8 × 9.1 in

Weight limit
Not stated in our sources
Sources agree

Last reviewed October 30, 2026. Cross-checked against: Canadian travel-points blog (2025); US travel-advice roundup (2025).

Conditions to know

  • Basic Economy fares have restricted carry-on rules on some routes. Check your fare.
  • Sizes are quoted in inches; centimetres here are rounded up slightly.
  • Most airlines measure the whole bag including wheels, handles and pockets, so use packed dimensions.

Check before you fly

Use the allowance shown in your booking as the final word, especially for basic or promotional fares. Recheck the packed bag, including wheels, handles and full pockets.

Open the pre-flight checklist

Bags that fit United Airlines as a carry-on

Sizes are manufacturer-listed. “Check first” means it fits on paper but something is uncertain.

BagListed sizeResultLink
53 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare; keep the expansion zip closed. Amazon.ca (opens Amazon.ca in a new tab)
56 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare; keep the expansion zip closed. Amazon.ca (opens Amazon.ca in a new tab)
56 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare; keep the expansion zip closed. Amazon.ca (opens Amazon.ca in a new tab)
56 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)
56 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)
43 × 28 × 13 cm Fits listed limitWithin the listed limit with 8 cm to spare on the tightest side. Amazon.ca (opens Amazon.ca in a new tab)
40 × 25 × 20 cm Fits listed limitWithin the listed limit with 3 cm to spare on the tightest side. Amazon.ca (opens Amazon.ca in a new tab)
55 × 35 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)
55 × 35 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)
56 × 36 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)
55 × 35 × 23 cm Check firstFits on paper (0 cm to spare on the tightest side), but under 1 cm to spare. Amazon.ca (opens Amazon.ca in a new tab)

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