Basic economy bag rules, explained
The cheapest ticket on a US airline often looks the same on the search page. The bag rules behind it are not. Here is what each airline's own baggage page said on 2026-10-26 about the lowest fare.
| Airline | Carry-on on lowest fare | What the airline says |
|---|---|---|
| Frontier | Extra cost | Only the personal item is included; a carry-on costs extra, and bundles can include one. |
| Allegiant | Extra cost | One free personal item only; carry-on costs $10 to $75 depending on route and when it is added. |
| Breeze | Extra cost | Every fare includes one personal item; a carry-on is bought separately or comes with a bundle. |
| Sun Country | Extra cost | The base fare includes one underseat item; an overhead carry-on is an add-on. |
| Southwest | Included | A free carry-on (10 x 16 x 24 in) plus one small personal-type item are included on every fare. |
| JetBlue | Included | All fares, including the lowest (Main Base), include a carry-on (space permitting) plus a personal item. |
| Alaska | Included | One free carry-on (22 x 14 x 9 in) and one personal item are allowed; Saver fares are included. |
| United | Extra cost | On most Basic Economy tickets only the personal item is allowed; a carry-on is free on other fares. |
| American | Included | One carry-on and one personal item are allowed in all cabins, including Basic Economy. |
| Delta | Included | One free carry-on and one personal item; on Basic Economy the carry-on may be gate-checked free if bins are full. |
| Hawaiian | Included | One carry-on (22 x 14 x 9 in) plus one personal item; Hawaiian now shares Alaska's baggage pages. |
What it means for your bag
On the airlines marked "extra cost", the personal item is the only free bag. That is where a bag built to the personal-item limit pays for itself: on those fares, a carry-on is charged per flight.
On airlines that include a carry-on, a personal item still matters. It is the bag that stays at your feet with your laptop, jacket and snacks.
Fees and rules change often. Check the airline's own page, linked in the table, when you book.