VerdictAI

Travel & Luggage · Travel Backpacks

What size travel backpack is best for carry-on?

Reviewer consensus

Most major airlines accept bags in the 35-45L range as carry-on, with 40L being the most popular sweet spot among one-bag travelers. Bags labeled 40L like the Osprey Farpoint or tomtoc Navigator typically meet U.S. domestic limits, but stricter European budget carriers (Ryanair, Wizz) may force you to size down or use a 35L-class pack.

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