Airline Personal Item & Carry-On Bag Size Compatibility
Most major U.S. airlines publish personal-item limits around 18 × 14 × 8 in (45 × 35 × 20 cm). There’s no true industry standard, but the Personal Duffel 27L (PD27) was designed to fit within those real-world under-seat constraints at 17 × 11.5 × 8 in (43 × 29 × 20 cm).
Airlines often post conservative dimensions online, while the actual sizers at the airport—and the space under the seat—can be more forgiving depending on aircraft and seat layout. And because the PD27 is soft-sided, how you pack it matters: don’t overstuff it and it can compress slightly to fit tighter, more constrained bag sizers.
In the table below, “Listed / Tested” compares the airline’s published limits with real-world experience traveling with the PD27. Always confirm requirements with your airline before flying, as policies can change. Last updated: February 2026.
| Airline | Personal Item (IN) | Personal Item (CM) | Fits as Personal Item? (Listed / Tested) | Carry-On (IN) | Carry-On (CM) | Fits as Carry-On? |
|---|---|---|---|---|---|---|
| Air Canada | 17 × 13 × 6.3 | 43 × 33 × 16 | LIKELY / YES | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Air France | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 14 × 9 | 55 × 35 × 25 | YES |
| Air Transat | 17 × 12.5 × 5.1 | 43 × 31 × 13 | LIKELY / YES | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Alaska Airlines | 14 × 12 × 9 | 35 × 30 × 22 | LIKELY | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| Allegiant | 18 × 14 × 8 | 45 × 35 × 20 | YES | 22 × 16 × 10 | 55 × 40 × 25 | YES |
| American Airlines | 18 × 14 × 8 | 45 × 35 × 20 | YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| British Airways | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 18 × 10 | 56 × 45 × 25 | YES |
| Cathay Pacific | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| Delta | 17 × 13 × 9 | 43 × 33 × 23 | YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| EasyJet | 18 × 14 × 8 | 45 × 36 × 20 | YES | 22 × 18 × 10 | 56 × 45 × 25 | YES |
| Emirates | 18 × 14 × 8 | 45 × 35 × 20 | YES | 22 × 15 × 9 | 55 × 38 × 22 | YES |
| Flair | 17 × 13 × 6 | 43 × 33 × 16 | LIKELY / YES | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Frontier | 18 × 14 × 8 | 46 × 36 × 20 | YES | 24 × 16 × 10 | 61 × 40 × 25 | YES |
| Hawaiian | Not specified | Not specified | LIKELY / YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| Jet Blue | 17 × 13 × 8 | 43 × 33 × 20 | YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| KLM | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 14 × 10 | 55 × 35 × 25 | YES |
| Korean Air | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 16 × 8 | 55 × 40 × 20 | YES |
| Lufthansa | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Porter Airlines | 17 × 13 × 6.3 | 43 × 33 × 16 | LIKELY / YES | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Qantas | 19 × 13.4 × 9 | 48 × 34 × 23 | YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| Qatar | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 20 × 15 × 10 | 50 × 37 × 25 | YES |
| Ryanair | 16 × 12 × 8 | 40 × 30 × 20 | LIKELY / YES | 22 × 16 × 8 | 55 × 40 × 20 | YES |
| SAS | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 16 × 9 | 55 × 40 × 23 | YES |
| Southwest | 18 × 13 × 8 | 46 × 33 × 20 | YES | 24 × 16 × 10 | 61 × 40 × 25 | YES |
| Spirit | 18 × 14 × 8 | 45 × 35 × 20 | YES | 22 × 18 × 10 | 56 × 46 × 25 | YES |
| United | 17 × 10 × 9 | 43 × 25 × 22 | LIKELY / YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| Virgin Atlantic | 16 × 12 × 6 | 40 × 30 × 15 | LIKELY | 22 × 14 × 9 | 56 × 36 × 23 | YES |
| WestJet | 16 × 13 × 6 | 41 × 33 × 14 | LIKELY / YES | 22 × 14 × 9 | 56 × 36 × 23 | YES |