Duffel / weekender · 16.5 × 10.6 × 7.9 in (41.9 × 26.9 × 20.1 cm)
Fits 5.3 cm (2.1 in) to spare on the depth
Bags that fit Southwest Airlines
Southwest Airlines publishes no personal-item size. The carry-on limit is 24 × 16 × 10 in (61 × 40.6 × 25.4 cm). We checked 1,046 bags against both, using each brand's own published size. Wheels count; soft bags get no more than 1 cm of squeeze.
Rules checked 5 October 2026 · Southwest Airlines rules and fares
Carry-on: 342 fit
Duffel / weekender (84)
Duffel / weekender · 16.9 × 13.2 × 8.1 in (42.9 × 33.5 × 20.6 cm)
Fits 4.8 cm (1.9 in) to spare on the depth
Duffel / weekender · 20.5 × 11.8 × 8.7 in (52.1 × 30 × 22.1 cm)
Fits 3.3 cm (1.3 in) to spare on the depth
Duffel / weekender · 20.9 × 13.8 × 9.4 in (53.1 × 35.1 × 23.9 cm)
Fits 1.5 cm (0.6 in) to spare on the depth
Duffel / weekender · 20.9 × 11.8 × 9.4 in (53.1 × 30 × 23.9 cm)
Fits 1.5 cm (0.6 in) to spare on the depth
Duffel / weekender · 16.3 × 11.2 × 7.2 in (41.4 × 28.4 × 18.3 cm)
Fits 7.1 cm (2.8 in) to spare on the depth
Duffel / weekender · 16 × 10 × 7.1 in (40.6 × 25.4 × 18 cm)
Fits 7.4 cm (2.9 in) to spare on the depth
Duffel / weekender · 20 × 12.8 × 7.9 in (50.8 × 32.5 × 20.1 cm)
Fits 5.3 cm (2.1 in) to spare on the depth
Duffel / weekender · 17.7 × 11 × 7.9 in (45 × 27.9 × 20.1 cm)
Fits 5.3 cm (2.1 in) to spare on the depth
Duffel / weekender · 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in)
Fits 10.4 cm (4.1 in) to spare on the depth
Duffel / weekender · 40 × 30 × 20 cm (15.7 × 11.8 × 7.9 in)
Fits 5.4 cm (2.1 in) to spare on the depth
Duffel / weekender · 40 × 25 × 20 cm (15.7 × 9.8 × 7.9 in)
Fits 5.4 cm (2.1 in) to spare on the depth
Carry-on suitcase (124)
Carry-on suitcase · 19.1 × 12.8 × 8.9 in (48.5 × 32.5 × 22.6 cm)
Fits 2.8 cm (1.1 in) to spare on the depth
Carry-on suitcase · 21.9 × 15 × 9.1 in (55.6 × 38.1 × 23.1 cm)
Fits 2.3 cm (0.9 in) to spare on the depth
Carry-on suitcase · 22 × 14.4 × 9.1 in (55.9 × 36.6 × 23.1 cm)
Fits 2.3 cm (0.9 in) to spare on the depth
Carry-on suitcase · 22 × 14.4 × 9.1 in (55.9 × 36.6 × 23.1 cm)
Fits 2.3 cm (0.9 in) to spare on the depth
Carry-on suitcase · 23 × 15.4 × 9.4 in (58.4 × 39.1 × 23.9 cm)
Fits 1.5 cm (0.6 in) to spare on the width
Carry-on suitcase · 23 × 15.4 × 9.4 in (58.4 × 39.1 × 23.9 cm)
Fits 1.5 cm (0.6 in) to spare on the width
Carry-on suitcase · 22.1 × 14.5 × 9.4 in (56.1 × 36.8 × 23.9 cm)
Fits 1.5 cm (0.6 in) to spare on the depth
Carry-on suitcase · 22.7 × 15.4 × 9.6 in (57.7 × 39.1 × 24.4 cm)
Fits 1 cm (0.4 in) to spare on the depth
Carry-on suitcase · 22 × 14 × 9 in (55.9 × 35.6 × 22.9 cm)
Fits 2.5 cm (1 in) to spare on the depth
Carry-on suitcase · 22 × 14 × 9 in (55.9 × 35.6 × 22.9 cm)
Fits 2.5 cm (1 in) to spare on the depth
Carry-on suitcase · 22 × 14 × 9 in (55.9 × 35.6 × 22.9 cm)
Fits 2.5 cm (1 in) to spare on the depth
Carry-on suitcase · 22.2 × 14.2 × 9.3 in (56.4 × 36.1 × 23.6 cm)
Fits 1.8 cm (0.7 in) to spare on the depth
Travel backpack (134)
Travel backpack · 16.9 × 13 × 7.9 in (43 × 33 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Travel backpack · 21.7 × 13.8 × 9.1 in (55 × 35 × 23 cm)
Fits 2.4 cm (0.9 in) to spare on the depth
Travel backpack · 21.7 × 13.8 × 9.1 in (55 × 35 × 23 cm)
Fits 2.4 cm (0.9 in) to spare on the depth
Travel backpack · 16.9 × 11.8 × 6.3 in (43 × 30 × 16 cm)
Fits 9.4 cm (3.7 in) to spare on the depth
Travel backpack · 18.7 × 12.6 × 6.7 in (47.5 × 32 × 17 cm)
Fits 8.4 cm (3.3 in) to spare on the depth
Travel backpack · 18.1 × 12.2 × 7.1 in (46 × 31 × 18 cm)
Fits 7.4 cm (2.9 in) to spare on the depth
Travel backpack · 18.1 × 12.2 × 7.1 in (46 × 31 × 18 cm)
Fits 7.4 cm (2.9 in) to spare on the depth
Travel backpack · 21.7 × 13.8 × 7.9 in (55 × 35 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Travel backpack · 21.7 × 13.8 × 7.9 in (55 × 35 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Travel backpack · 15.4 × 11.6 × 7.9 in (39 × 29.5 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Travel backpack · 17.7 × 12.2 × 7.9 in (45 × 31 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Travel backpack · 18.1 × 12.2 × 7.9 in (46 × 31 × 20 cm)
Fits 5.4 cm (2.1 in) to spare on the depth
Not on the list? Check your own bag
Bag sizes are the brands' published dimensions, read from their own product pages on 5 October 2026; we don't measure bags ourselves. Airline staff have the final say at the gate. Links to brand stores may earn us a commission (disclosure).