Best Travel Backpacks for Families in 2026
The best family travel backpacks combine carry-on compliance, clamshell opening, and water resistance. Top 2026 picks: Cotopaxi Allpa 35L (parents), Osprey Farpoint/Fairview 40L (durability champion), and REI Co-op Trail 25 for kids.
Key takeaways
- Cotopaxi Allpa 35L — best overall for parents
- Osprey Farpoint/Fairview 40L — most durable
- REI Co-op Trail 25 — best kids' pack
- Clamshell opening makes packing 3x easier
Family backpack checklist
- Clamshell (suitcase-style) opening - Carry-on dimensions for major airlines - Hip belt that distributes load - Lockable main zipper - AirTag pocket
Frequently asked questions
What size backpack is allowed on planes?
Most US airlines allow personal item under-seat backpacks up to ~18x14x8 inches and full carry-on backpacks up to 22x14x9 inches.
Can a backpack be a kid's only luggage?
For trips under 5 days, yes — a 20-25L kid backpack with packing cubes holds enough clothes plus an iPad, water, and snacks.