Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner on Southwest Airlines
Bag 21×15×9" vs sizer 24×16×10"
Yes — it fits the bin.
The verdict, explained
At 21x15x9", the Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner fits inside Southwest Airlines's 24x16x10" carry-on allowance with about 1" to spare on its tightest side. It should slide into the overhead bin without trouble at the gate sizer. On Southwest Airlines: Generous 24x16x10 carry-on plus two free checked bags. It is too large for Southwest Airlines's under-seat personal-item space, so it has to go overhead or be checked.
| Axis | Bag | Sizer | Margin |
|---|---|---|---|
| Length | 21" | 24" | +3" |
| Width | 15" | 16" | +1" |
| Height | 9" | 10" | +1" |
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Frequently asked
Does the Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner fit Southwest Airlines's carry-on size limit?
Yes. The Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner fits within Southwest Airlines's 24x16x10" carry-on allowance and can go in the overhead bin.
What is Southwest Airlines's carry-on size limit?
Southwest Airlines allows carry-on bags up to 24x16x10" (length x width x height), including wheels and handles. Generous 24x16x10 carry-on plus two free checked bags.
Can the Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner be a personal item on Southwest Airlines?
No. At 21x15x9" it is too big for Southwest Airlines's under-seat personal-item space (18.5x13.5x8.5"); it travels as a carry-on instead.
The full verdict on the Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner — every airline sizer it clears, and the ones it doesn't.
Bags that clear Southwest Airlines's sizer
Alternatives that fit the 24×16×10" limit outright.
The Briggs & Riley Baseline Global 21" Carry-On Expandable Spinner on other airlines
Same bag, different sizers — check before a connecting or return flight.
- ✕Delta Airlines
- ✕American Airlines
- ✕United Airlines
- ✕JetBlue
- ✕Alaska Airlines
- ✓Spirit Airlines
- ✓Frontier Airlines
- ✕Hawaiian Airlines
- ✕Allegiant Air
- ✓Sun Country Airlines
- ✓Ryanair
- ✓easyJet
- ✓Wizz Air
- ✓British Airways
- ✓Lufthansa
- ✕Air France
- ✕KLM
- ✓Iberia
- ≈Vueling
- ✓Eurowings
- ✓Norwegian
- ≈TAP Air Portugal
- ✓SAS Scandinavian
- ✓SWISS
- ✓Austrian Airlines
- ✓Aer Lingus
- ✓Finnair
- ✕ITA Airways
- ✓Brussels Airlines
- ✓LOT Polish Airlines
- ✓Transavia
- ≈Volotea