Short answer: Most airlines allow a soft-sided holdall or weekender as a cabin carry item when it fits the carrier’s published maximum dimensions and weight limits; measure external dimensions including straps and wheels before travel.
Typical limits: European/international standard often listed as 55 × 40 × 20 cm (≈21.6 × 15.7 × 7.8 in); many US domestic carriers use ≈56 × 36 × 23 cm (≈22 × 14 × 9 in). Budget operators frequently restrict the free cabin item to roughly 40 × 20 × 25 cm and set weight caps around 7–10 kg (15–22 lb); several US legacy airlines do not publish a weight limit but enforce sizers at boarding.
Practical rules: Measure the packed item including external pockets; compress soft sides to pass through gate sizers; place heavy objects close to the base to meet weight checks; store electronics in an accessible sleeve for security inspection; follow the 100 ml/3.4 oz liquids rule placed in a single clear quart-sized bag. If oversized or overweight, expect a gate-check fee or requirement to stow in the hold.
How to measure your travel kit to meet airline carry-on size limits
Measure external dimensions–length, width (depth) and height including wheels, external pockets and straps–and aim for 55 x 40 x 20 cm or smaller for strict low-cost carriers, or 56 x 36 x 23 cm to satisfy most legacy airlines in the US and Europe.
Tools required
Flexible tape measure (metric preferred), flat floor or table, rigid straightedge for accuracy, a marker and a piece of cardboard the size of the airline limit for a quick fit test.
Step-by-step measurement
Pack the item as it will be carried during travel, close all zippers and fasten compression straps. Place on a flat surface. Measure length along the longest external side; measure width across the front-to-back axis at the widest bulge; measure height from base to topmost external point, including wheels, telescopic handles or exterior pouches. Record results to the nearest 0.5 cm.
For cylindrical or irregular soft-sided designs, measure the longest axis (length) then measure the maximum diameter across the circular section; treat diameter as depth. If easier, wrap the item in a tape measure at its widest cross-section and divide circumference by 3.14 to check approximate diameter.
Allow a safety margin of 1–2 cm under the published limit to account for gate checks and measurement tolerances. If dimensions exceed limits by more than 2 cm, redistribute contents, compress with straps, or switch to a smaller model.
Make a cardboard template cut to the carrier’s published dimensions and attempt to slide the packed item into it; if the item fits flat without bulging, odds of acceptance at gate increase. Label the template with the carrier name and date to use for future checks.
Which airlines treat a holdall as a carry-on versus a personal item
Treat a holdall as a carry-on on most major network carriers if its dimensions fit the standard cabin allowance; low-cost carriers typically accept it only as a personal item unless it meets their smaller under-seat dimensions or a paid priority/cabin allowance is added.
Practical threshold: network carriers usually use 22 x 14 x 9 in (56 x 36 x 23 cm) for cabin pieces; many budget operators restrict free under-seat items to roughly 40–45 x 30–25 cm (16–18 x 12–12 in).
Airline | Treatment for a holdall | Free allowance (max) | Notes |
---|---|---|---|
American Airlines | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | Personal item must fit under seat; carry-on allowed in main cabin fares |
Delta Air Lines | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | Basic Economy may limit to a single under-seat item depending on fare |
United Airlines | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | Plenty of gate checks for oversized items; encourage measuring before travel |
Southwest | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | One carry-on plus one under-seat item included free |
Alaska Airlines | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | Policy similar to other US legacy carriers |
JetBlue | Carry-on if within cabin dimensions | 22 x 14 x 9 in (56 x 36 x 23 cm) | Blue Basic fares may limit to under-seat item only |
British Airways | Carry-on if within cabin dimensions | 56 x 45 x 25 cm (22 x 18 x 10 in) | Certain low-fare tickets restrict cabin allowance to a single small item |
Lufthansa | Carry-on if within cabin dimensions | 55 x 40 x 23 cm (21.7 x 15.7 x 9 in) | Business/first allow additional cabin piece; economy tighter limits |
Air France / KLM | Carry-on if within cabin dimensions | 55 x 35 x 25 cm (21.7 x 13.8 x 9.8 in) | Different franchises and fare classes vary; check during booking |
easyJet | Usually treated as a personal item unless larger cabin allowance purchased | Small free: 45 x 36 x 20 cm; Cabin bag (paid): 56 x 45 x 25 cm | Priority/Up Front grants larger cabin allowance |
Ryanair | Personal item by default; carry-on only with priority | Small free: 40 x 20 x 25 cm; Priority cabin: 55 x 40 x 20 cm | Large cabin pieces require Priority or a paid allowance |
Wizz Air | Personal item by default; carry-on with WIZZ Priority | Small free: 40 x 30 x 20 cm; Priority cabin: 55 x 40 x 23 cm | Priority purchase recommended for larger pieces |
Spirit Airlines | Personal item free only; larger carry-on triggers fee | Personal item: 18 x 14 x 8 in (45 x 35 x 20 cm); Carry-on: 22 x 18 x 10 in | Low fares usually charge for cabin allowance larger than the under-seat item |
Frontier Airlines | Personal item free only; carry-on charged separately | Personal item: 18 x 14 x 8 in (45 x 35 x 20 cm); Carry-on: 24 x 16 x 10 in (approx.) | Fees & seat selection affect cabin allowances |
If dimensions are borderline, purchase priority/paid cabin allowance or gate-check at boarding to avoid unexpected fees; always verify the specific carrier’s policy before travel.
How to pack a travel sack to speed up airport security screening
Place electronics, liquids and travel documents in external or topmost compartments for immediate presentation at security checkpoints.
Layout and placement
Keep laptop and tablet in a slim, removable sleeve located in a dedicated zip pocket; power banks and chargers in a small clear pouch beside that pocket. Store the clear quart-size toiletry bag (containers ≤100 ml / 3.4 oz) at the top so it can be lifted out without opening the main compartment.
Heavier items (shoes, packing cube with bulk clothing) belong at the bottom to prevent shifting; thin items that may be x-rayed separately (hard drives, camera batteries) should be grouped in one easily accessible pocket.
Preparation and items to avoid delays
Use one zippered electronics pouch for cords, adapters and spare batteries to avoid loose items spilling into trays. Keep passport/boarding pass in the front organizer or a quick-access sleeve. Wear bulky footwear and outerwear through the checkpoint to reduce items needing removal.
For photography gear choose compact models and modular padding that fit an internal organizer; see best digital camera consumer search for suitable small cameras that slide into carry-on organizers.
Quick checklist: removable laptop sleeve, clear quart toiletry pouch, single electronics pouch, passport/front-pocket access, heavy items low, shoes worn through screening.
How to weigh a carryall to avoid carry-on overweight charges
Weigh the packed carryall on a digital hook scale and keep at least a 0.9 kg (2 lb) buffer under the airline’s published cabin-weight allowance.
- Essential tools
- Digital hook/strap luggage scale (accuracy ±0.05–0.1 kg, capacity 40–50 kg).
- Bathroom scale (for the body-minus-item method) with 0.2 kg resolution or better.
- Postal/kitchen scale for small items and liquids (max 5–10 kg, 1–5 g resolution).
- Quick weighing methods
- Hook scale: fast and most accurate – attach strap to handle, lift until stable, read weight. Record the result.
- Bathroom scale method: weigh self, note number A. Pick up packed carryall, weigh self again, note number B. Packed weight = B − A. Repeat once to confirm.
- Tare method for divided items: place heavy pockets or toiletry kit on postal scale to subtract from total when necessary.
- Step-by-step process before heading to airport
- Confirm the exact cabin-weight allowance for the booked fare class and aircraft; use airline website or boarding pass notes.
- Weigh the empty carryall (record empty weight). This helps estimate how much can be added without reweighing every time.
- Pack and seal main compartments, zip external pockets, then weigh using the hook or bathroom method.
- If measured weight exceeds allowance minus 0.9 kg (2 lb), remove items and reweigh; target final weight = allowance − 0.9 kg (2 lb).
- Practical tips to avoid surprises at the gate
- Place heavy items near the base to keep center of gravity low; shifting weight doesn’t change total but reduces stress on straps and closures.
- Weigh liquids and electronics separately; a laptop or full toiletry kit can add 1–3 kg quickly.
- Round up displayed scale values: if reading 9.3 kg and allowance is 10 kg, treat as 9.5–9.7 kg for safety.
- For airlines with strict enforcement, aim for a 1–1.5 kg (2–3 lb) buffer if planning to board during busy times.
- If overweight at departure
- Shift items to checked hold if that option was purchased and is cheaper than overweight fees.
- Move heavy single items into a separate pouch and wear bulkiest garments on the plane if allowed by cabin policy.
- Consider repacking into a personal-item-sized carrier if that item class permits; reweigh after transfer.
When to gate-check a soft-sided travel sack and how to protect its contents
Gate-check when boarding group is late, overhead bins are full, the item visibly bulges beyond the carrier’s cabin allowance, or it contains wet/odorous articles that may be refused for overhead storage; remove passports, cash, prescription medicines, cameras, and other high-value electronics before handing the item to gate staff.
If dimensions exceed the common cabin maximum of 22 × 14 × 9 inches, expect a gate-check request; overstuffed soft-sided packs that extend more than 1–2 inches beyond seams are also routinely flagged at the jetway. If flight is full or boarding group is after Group 3, probability of available bin space drops sharply–consider voluntary gate-check at that point.
Internal protection checklist: wrap rigid items (lenses, watches, glass bottles) in soft clothing layers and place them in the central core surrounded by garments; place fragile items inside a padded insert or small hard case; keep liquids in sealed quart zip bags and double-bag toiletries to prevent seepage; use compression cubes for separation and to prevent shifting.
External protection measures: use a brightly colored or uniquely patterned exterior strap and a secure name tag to speed retrieval and reduce misrouting; apply a luggage wrap (plastic shrink-wrap at the counter) when available to add abrasion and moisture protection; attach a duplicate contact card inside the main compartment in case the external tag is lost.
Security and claims protocol: photograph the item from all sides and an interior shot showing packed contents and serial numbers of electronics; obtain and retain the gate-check claim stub issued by staff; if damage is discovered on arrival, complete an irregularity report before leaving the airport and keep boarding pass plus claim stub for any compensation request.
Locks and closures: use TSA-recognized combination locks on any external zipper; for gate-checked soft-sided packs, consider using tamper-evident zip ties on main zippers (store spare tie) so a cut tie signals inspection rather than concealed damage. Avoid placing irreplaceable items in the checked compartment; store those on person or inside a secure personal item.
For frequent travelers who face repeat gate-checks, switching to a compact hard-shell roller with reinforced corners reduces crush damage and water intrusion–see recommendations for structured cases like best luggage alpha m. For rainy departures or stroller transfers, keep a compact, foldable umbrella in an exterior pocket such as the best umbrella fold pram listings suggest, so wet items can be separated immediately at the gate.
Final quick checklist for gate-handovers: remove valuables and meds; photograph item and contents; secure fragile items with padding and a hard insert when possible; request and keep the gate-check tag; carry a small personal item on board with critical documents and a phone charger.
Choosing a carry-on travel pack for short trips: materials, pockets and handles
Prefer a 20–35 L soft-sided travel pack built from 1000D Cordura or 840D ballistic nylon, fitted with water-resistant YKK zippers, a padded removable shoulder strap and reinforced top and end haul points.
Materials
Opt for fabric with a denier rating between 600D (lightweight) and 1000D (high abrasion resistance); 840D ballistic nylon offers a balance of tear resistance and lower bulk. Look for DWR coating plus a PU or TPU laminate with a hydrostatic head of at least 1500–2000 mm for reliable splash and light-rain protection. Base panels should use thicker material (Hypalon or reinforced 1000D) or a thermoplastic sheet to resist wear from airport floors. Seams around pockets and base benefit from bartack or bar-tack stitching; critical load points should show box-x reinforcement. Target empty weight under 1.2 kg for a 20–35 L model to keep overall carry weight manageable.
Pockets and handles
Must-have organizational features: one full-width main compartment; a fleece-lined pocket for sunglasses or phone (approx. 18 x 10 cm); a padded sleeve sized for 13–15″ laptops (~34 x 24 cm) that either lies flat or is accessible from a clamshell opening; a separate external zippered shoe/wet pocket (approx. 28 x 18 x 12 cm) with internal drainage or waterproof lining; two internal mesh pockets for cables and toiletries; and one RFID-blocking pocket for passport/cards. External quick-access pockets should use water-resistant zippers and be able to accept a phone or boarding pass without opening the main compartment.
Handles and straps: shoulder strap width 40–50 mm with 8–12 mm foam padding and a non-slip neoprene or silicone-backed cover; detachable strap length adjustable ~90–130 cm with Duraflex or anodized aluminum hardware; top and side haul handles reinforced with boxed stitching and either rivets or bartacks at attachment points. If shoulder straps convert to a backpack carry, ensure a tuck-away panel with a zippered slot. For short trips, omit heavy frames; prefer load-transfer via a minimal removable waist strap 25–40 mm wide when longer walks are expected. Quick-release buckles and welded zipper garages reduce snagging and speed handling at checkpoints.