Osprey Daylite Expandable Travel Pack 26+6L: 17 x 13 x 6 in
26+6L, backpack, no wheels, 1.85 lb empty. Exterior figures are the maker's own.
Under the seat at 7 of 13 airlines with a published limit
The table below shows the verdict at every airline, best fit first, using the same math as the live fit checker.
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Does the Daylite Expandable fit? All 19 airlines
17 x 13 x 6 in against each airline's published carry-on box, largest side to largest side, sorted best fit first.
| Airline | Cabin max (in) | Verdict | Under seat |
|---|---|---|---|
| British Airways | 22 x 18 x 10 | Cabin approved4 in to spare | No |
| Allegiant Air | 22 x 16 x 10 | Cabin approved3 in to spare | Yes |
| Frontier Airlines | 24 x 16 x 10 | Cabin approved3 in to spare | Yes |
| Southwest Airlines | 24 x 16 x 10 | Cabin approved3 in to spare | not published |
| Sun Country Airlines | 24 x 16 x 11 | Cabin approved3 in to spare | Yes |
| Lufthansa | 21.65 x 15.75 x 9.06 | Cabin approved2.8 in to spare | No |
| Turkish Airlines | 21.65 x 15.75 x 9.06 | Cabin approved2.8 in to spare | No |
| Air Canada | 21.5 x 15.5 x 9 | Cabin approved2.5 in to spare | Yes |
| Emirates | 21.65 x 14.96 x 8.66 | Cabin approved2 in to spare | not published |
| Ryanair | 21.65 x 15.75 x 7.87 | Cabin approved1.9 in to spare | No |
| Qatar Airways | 19.69 x 14.57 x 9.84 | Cabin approved1.6 in to spare | not published |
| Alaska Airlines | 22 x 14 x 9 | Cabin approved1 in to spare | not published |
| American Airlines | 22 x 14 x 9 | Cabin approved1 in to spare | Yes |
| Avelo Airlines | 22 x 14 x 9 | Cabin approved1 in to spare | Yes |
| Delta Air Lines | 22 x 14 x 9 | Cabin approved1 in to spare | not published |
| Hawaiian Airlines | 22 x 14 x 9 | Cabin approved1 in to spare | not published |
| JetBlue Airways | 22 x 14 x 9 | Cabin approved1 in to spare | Yes |
| United Airlines | 22 x 14 x 9 | Cabin approved1 in to spare | No |
| Air France | 21.7 x 13.8 x 9.9 | Cabin approved0.8 in to spare | No |
Bag spec source: osprey.com · accessed 2026-07-09. Airline limits come from each carrier's official baggage page; open an airline above for its citations. Policies change, so verify a borderline case before you fly.
Osprey lists pack dimensions on its product pages as height by width by depth, in both centimeters and inches. The centimeter values are the consistent primary figures and Osprey's inch values are rounded and vary in axis order between page versions, so entries lacking a clean published inch triple were converted from Osprey's published centimeters at full precision and rounded to one decimal. Dimensions for the Farpoint and Fairview 55 and 70 packs are for the main pack body and do not include the detachable 15L travel daypack, per Osprey's own note, while the stated volume does include it.
All 11 Osprey bags
