Does the Osprey Daylite Plus 20 fit as a carry-on?

Packed full, the Osprey Daylite Plus 20 (48 × 28 × 24 cm (18.9 × 11.02 × 9.45 in)) fits 8 of 18 airline carry-on limits we track, and 9 more if not packed full. As a personal item it fits 0 of 15.

8 carry-on limits fit9 only if not packed full1 too bigOsprey lists 48 × 28 × 24 cm (18.9 × 11.02 × 9.45 in), 0.585 kg (1.29 lb) · maker’s page, checked 2026-10-26

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Airline limitOsprey Daylite Plus 20, as listedDrawn to scale

Osprey Daylite Plus 20 against every airline

Airline	Allowance	Max size	Tightest side	Verdict
Delta	Carry-on bag	22 × 14 × 9 in (56 × 35 × 23 cm)	−0.4 in	Fits if not packed full
United	Carry-on bag	22 × 14 × 9 in (56 × 35 × 23 cm)	−0.4 in	Fits if not packed full
United	Personal item	17 × 10 × 9 in (43 × 25 × 22 cm)	−1.9 in	Too big
American	Carry-on bag	22 × 14 × 9 in (56 × 36 × 23 cm)	−0.4 in	Fits if not packed full
American	Personal item	18 × 14 × 8 in (45 × 35 × 20 cm)	−1.4 in	Too big
Southwest	Carry-on bag	24 × 16 × 10 in (≈ 61 × 40.6 × 25.4 cm)	+0.6 in	Fits
JetBlue	Carry-on bag	22 × 14 × 9 in (55.88 × 35.56 × 22.86 cm)	−0.4 in	Fits if not packed full
JetBlue	Personal item	17 × 13 × 8 in (43.2 × 33 × 20.32 cm)	−1.9 in	Too big
Spirit	Carry-on bag (not every fare)	22 × 18 × 10 in (56 × 46 × 25 cm)	+0.6 in	Fits
Spirit	Personal item	18 × 14 × 8 in (45 × 35 × 20 cm)	−1.4 in	Too big
Frontier	Carry-on bag (not every fare)	24 × 16 × 10 in (≈ 61 × 40.6 × 25.4 cm)	+0.6 in	Fits
Frontier	Personal item	18 × 14 × 8 in (≈ 45.7 × 35.6 × 20.3 cm)	−1.4 in	Too big
Allegiant	Carry-on bag (not every fare)	22 × 16 × 10 in (55 × 40 × 25 cm)	+0.6 in	Fits
Allegiant	Personal item	18 × 14 × 8 in (45 × 35 × 20 cm)	−1.4 in	Too big
Ryanair	Priority 10 kg cabin bag (not every fare)	55 × 40 × 20 cm (≈ 21.7 × 15.7 × 7.9 in)	−4.0 cm	Too big
Ryanair	Free small bag	40 × 30 × 20 cm (≈ 15.7 × 11.8 × 7.9 in)	−8.0 cm	Too big
easyJet	Large cabin bag (not every fare)	56 × 45 × 25 cm (≈ 22 × 17.7 × 9.8 in)	+1.0 cm	Fits
easyJet	Free under-seat bag	45 × 36 × 20 cm (≈ 17.7 × 14.2 × 7.9 in)	−4.0 cm	Too big
Wizz Air	Trolley bag (WIZZ Priority) (not every fare)	55 × 40 × 23 cm (≈ 21.7 × 15.7 × 9.1 in)	−1.0 cm	Fits if not packed full
Wizz Air	Free carry-on bag	40 × 30 × 20 cm (≈ 15.7 × 11.8 × 7.9 in)	−8.0 cm	Too big
Jet2	10 kg hand luggage	56 × 45 × 25 cm (≈ 22 × 17.7 × 9.8 in)	+1.0 cm	Fits
Jet2	Small under-seat bag	40 × 30 × 20 cm (≈ 15.7 × 11.8 × 7.9 in)	−8.0 cm	Too big
British Airways	Cabin bag	56 × 45 × 25 cm (22 × 18 × 10 in)	+1.0 cm	Fits
British Airways	Handbag	40 × 30 × 15 cm (16 × 12 × 6 in)	−9.0 cm	Too big
Lufthansa	Carry-on bag (not every fare)	55 × 40 × 23 cm (≈ 21.7 × 15.7 × 9.1 in)	−1.0 cm	Fits if not packed full
Lufthansa	Personal item	40 × 30 × 15 cm (≈ 15.7 × 11.8 × 5.9 in)	−9.0 cm	Too big
KLM	Hand baggage (not every fare)	55 × 35 × 25 cm (≈ 21.7 × 13.8 × 9.8 in)	+1.0 cm	Fits
KLM	Small bag	40 × 30 × 15 cm (≈ 15.7 × 11.8 × 5.9 in)	−9.0 cm	Too big
Air Canada	Standard carry-on	55 × 40 × 23 cm (21.5 × 15.5 × 9 in)	−1.0 cm	Fits if not packed full
Air Canada	Personal item	43 × 33 × 16 cm (17 × 13 × 6 in)	−8.0 cm	Too big
WestJet	Carry-on bag	56 × 36 × 23 cm (22 × 14 × 9 in)	−1.0 cm	Fits if not packed full
WestJet	Personal item	41 × 33 × 14 cm (16 × 13 × 6 in)	−10.0 cm	Too big
Qantas	Overhead bag	56 × 36 × 23 cm (22 × 14 × 9 in)	−1.0 cm	Fits if not packed full

“Tightest side” is the smallest margin; a minus means the bag is larger than the limit on that side. Every limit comes from the airline’s own baggage page, linked on its airline page.

Bags that fit more airlines

Tortuga Pro Backpack 40LFits 18 of 18 carry-on limits22 × 14 × 8 in (55 × 35 × 20 cm)Nomatic Travel Pack 20LFits 18 of 18 carry-on limits18.5 × 12 × 6 in (≈ 47 × 30.5 × 15.2 cm)CABINZERO Classic 28LFits 18 of 18 carry-on limits39 × 29.5 × 20 cm (15.4 × 11.6 × 7.9 in)The North Face BorealisFits 18 of 18 carry-on limits12 × 6.5 × 19.5 in (30.5 × 16.5 × 49.5 cm)

How we check

Bag size is the maker’s listed outside size. When a maker prints inches and centimetres that disagree, we use the larger.
Airline limits come from each airline’s baggage page, checked on the date shown.
Sides are compared largest to largest, the way a bag goes into a sizer.
“Fits if not packed full”: a soft pack is at most 3 cm too deep and fine on the other sides. More on the method.

Questions

Is the Osprey Daylite Plus 20 allowed as Ryanair free small bag?

No. The Osprey Daylite Plus 20 is larger than the Ryanair free small bag limit of 40 × 30 × 20 cm (≈ 15.7 × 11.8 × 7.9 in) in height and depth: height −8.0 cm, width +2.0 cm, depth −4.0 cm.

Is the Osprey Daylite Plus 20 allowed as Ryanair priority 10 kg cabin bag?

No. The Osprey Daylite Plus 20 is larger than the Ryanair priority 10 kg cabin bag limit of 55 × 40 × 20 cm (≈ 21.7 × 15.7 × 7.9 in) in depth: height +7.0 cm, width +12.0 cm, depth −4.0 cm.

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

Only if it is not packed full. The Osprey Daylite Plus 20 is listed 0.4 in deeper than the Delta carry-on bag limit (22 × 14 × 9 in (56 × 35 × 23 cm)), and fine on height and width. Packed less full, a soft pack gets thinner.

Is the Osprey Daylite Plus 20 allowed as easyJet free under-seat bag?

No. The Osprey Daylite Plus 20 is larger than the easyJet free under-seat bag limit of 45 × 36 × 20 cm (≈ 17.7 × 14.2 × 7.9 in) in height and depth: height −3.0 cm, width +8.0 cm, depth −4.0 cm.

How much does the Osprey Daylite Plus 20 weigh empty?

0.585 kg (1.29 lb), as listed by Osprey. That matters on airlines with a weight limit, such as Ryanair (10 kg) or Lufthansa (8 kg).