Does the Osprey Daylite Plus 20 fit Frontier's carry-on bag limit?

Yes. The Osprey Daylite Plus 20 is within the Frontier carry-on bag limit of 24 × 16 × 10 in (≈ 61 × 40.6 × 25.4 cm) on every side: height +5.1 in, width +5.0 in, depth +0.6 in.

Frontier limit 24 × 16 × 10 in (≈ 61 × 40.6 × 25.4 cm) · Frontier baggage page, checked 2026-10-26Osprey Daylite Plus 20 48 × 28 × 24 cm (18.9 × 11.02 × 9.45 in) · maker’s page

Osprey Daylite Plus 20 in the Frontier sizer

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FRONTSIDE16 in wide10 in deep24 in tall
Frontier carry-on bag limitOsprey Daylite Plus 20, as listedDrawn to scale
FRONTSIDE14 in wide8 in deep18 in tall
Frontier · Personal item

Osprey Daylite Plus 20

Too bigNo. The Osprey Daylite Plus 20 is larger than the Frontier personal item limit of 18 × 14 × 8 in (≈ 45.7 × 35.6 × 20.3 cm) in height and depth: height −0.9 in, width +3.0 in, depth −1.4 in.
LimitBagRoomHeight, in1818.9−0.9 inWidth, in1411+3.0 inDepth, in89.5−1.4 inWeight, kgnone0.585—

Including handles, wheels and straps.

Other bags for Frontier

BagVerdict
Osprey Farpoint 40Fits
Osprey Fairview 40Fits
Cotopaxi Allpa 35LFits
Aer Travel Pack 3Fits
Tortuga Pro Backpack 40LFits

Daylite Plus 20 on other airlines

AirlineVerdict
DeltaFits if not packed full
UnitedFits if not packed full
AmericanFits if not packed full
SouthwestFits
JetBlueFits if not packed full
SpiritFits
AllegiantFits
RyanairToo big
All 18 airlines for the Daylite Plus 20

Questions

Is the Osprey Daylite Plus 20 allowed as Frontier carry-on bag?

Yes. The Osprey Daylite Plus 20 is within the Frontier carry-on bag limit of 24 × 16 × 10 in (≈ 61 × 40.6 × 25.4 cm) on every side: height +5.1 in, width +5.0 in, depth +0.6 in.

Is the Osprey Daylite Plus 20 allowed as Frontier personal item?

No. The Osprey Daylite Plus 20 is larger than the Frontier personal item limit of 18 × 14 × 8 in (≈ 45.7 × 35.6 × 20.3 cm) in height and depth: height −0.9 in, width +3.0 in, depth −1.4 in.

How much can I pack in the Osprey Daylite Plus 20 on Frontier?

Frontier allows 15.9 kg for the carry-on bag. The pack weighs 0.585 kg (1.29 lb) empty, which leaves about 15.3 kg for your things.