Ryanair Approved 40x20x25 Cabin Bag - Vacuum Compression Travel Backpack & 42x29
15.7 × 9.8 × 7.9 in
$37.99estimated
Verified packing list
Personal-Item-Only Packing List, the verified version
The budget-airline game: fly on the free under-seat bag alone and give Frontier, Avelo or Breeze nothing. The sizes below come straight from our verified airline DB; the packing tricks are marked as tips. Checks save on this device.
| Airline | Personal item max | Weight | Data |
|---|---|---|---|
| Frontier Airlines | 18 × 14 × 8 in | 35 lb | verified |
| Allegiant Air | 16 × 15 × 7 in | — | verified |
| Avelo Airlines | No published size limit | — | verified |
| Breeze Airways | 17 × 13 × 8 in | — | verified |
| United Airlines | 17 × 10 × 9 in | — | verified |
| Spirit Airlines ceased ops | 18 × 14 × 8 in | — | verified |
Know your box
- The table above is our verified data — limits differ by 2–3 inches between airlines, and that's the whole game. details →
- A soft bag grows an inch when stuffed. Measure the fat version. details →
The bag itself
- Boxy beats teardrop — round corners waste sizer space. (Tip.)
- Soft bags survive a tight sizer; hard minis don't. (Tip.)
Space plays
- Heaviest shoes on your feet, jacket on your body — pockets are a free extra bag. (Tip.)
- Clothes in the cube, cube at the bottom, everything else layers on top. (Tip.)
- Bar soap, stick deodorant (any size — solid sticks skip 3-1-1), solid shampoo. Fewer liquids, no quart-bag Tetris. details →
- The charger brick pile is the silent space killer. (Tip.)
At the gate
- On strict low-cost carriers, a bag that's visibly overstuffed invites the check. Budget airlines charge much more at the gate than at booking — Frontier says so on its own bag page.
- Your bag rides at your feet — pack the flight stuff (headphones, snacks, meds) at the top. details →
Shop this trip
One pick from each part of the kit we stock — add them all, then trim in the cart. Kits are checklists, never a bundled SKU: you can remove anything.
Large Capacity 150 L Quilt Clothing House-moving Luggage Organizer
19.7 × 19.7 × 13.8 in
$8.99verified fit
FAQ
Is a backpack a personal item?
If it fits your airline's published dimensions, yes — the label doesn't matter, the size does. Frontier allows 18 × 14 × 8 in; United 17 × 10 × 9 in; Avelo publishes no numbers at all (the sizer decides). Check your bag against your airline in our fit checker.
What happens if my personal item is too big?
On budget carriers you pay the gate rate for a carry-on or checked bag — the most expensive way to buy one. Frontier's own bag page notes bags are cheaper at booking than at the airport.
What size personal item fits every airline?
Computed from our verified table (as of 2026-07-02): staying under roughly 16 × 14 × 7 in clears every published US personal-item limit — but Avelo and a few others publish no numbers, so measure conservatively and check your specific airline.
Flying to the port? Check your bag against your airline on the fit checker, and your liquids against 3-1-1.
Size limits change. We watch them for you.
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