Airline vs airline · Checked October 29, 2026
Delta vs United: baggage rules compared
Carry-on, personal item, checked bag and check-in deadlines for Delta Air Lines and United Airlines, from each airline's own website.
The short version
- The carry-on limits are about the same size on Delta and United.
| Delta | United | |
|---|---|---|
| Carry-on size | 22 x 14 x 9 in / 56 x 35 x 23 cm | 22 x 14 x 9 in / 56 x 35 x 23 cm |
| Carry-on weight | No published limit | No published limit |
| Carry-on on the cheapest fare | Included | Included (Not included in Basic Economy on most routes) |
| Personal item | No size published, must fit under the seat | 17 x 10 x 9 in / 43 x 25 x 22 cm |
| Checked bag size | 157 cm (62 in) in total | 158 cm (62 in) in total |
| Checked bag weight | 23 kg (50 lb) per bag in economy, 45 kg (100 lb) max for any bag | 23 kg (50 lb) per bag in economy, 45 kg (100 lb) max for any bag |
| Online check-in opens | 24 hours before | 24 hours before |
| Bag drop closes | 45 min before (domestic / short-haul), 60 min before (international / long-haul) | Not published |
| At the gate by | 15 min before | Not published |
| Power banks | 2 (up to 100 Wh each); in-flight use: allowed except taxi, take-off and landing; no recharging it on board | Standard 100 Wh / 160 Wh rules |
Carry-on that fits both
22 x 13.8 x 9.1 in (56 x 35 x 23 cm)
The smallest limit on each side
Personal item that fits both
Under the seat
One airline doesn't publish a size
Flying both on one trip? The trip checker shows which airline sets each limit, and the gate card keeps the rules on your phone.
Will your bag fit?
Measure with wheels, handles and pockets included. The order of the sides doesn't matter.
Questions people ask
Is the Delta carry-on bigger than United?
The carry-on limits are about the same size on Delta and United.
What carry-on size fits both Delta and United?
A bag no bigger than 22 x 13.8 x 9.1 in (56 x 35 x 23 cm) fits both carry-on limits. Check weight limits too.