The Savvy Packer
Airline vs airline · Checked October 29, 2026

Frontier vs JetBlue: baggage rules compared

Carry-on, personal item, checked bag and check-in deadlines for Frontier Airlines and JetBlue, from each airline's own website.

The short version

FrontierJetBlue
Carry-on size24 x 16 x 10 in / about 61 x 41 x 25 cm22 x 14 x 9 in / 55.88 x 35.56 x 22.86 cm
Carry-on weight35 lb (15.9 kg)No published limit
Carry-on on the cheapest farePaid extraIncluded
Personal item18 x 14 x 8 in / about 46 x 36 x 20 cm17 x 13 x 8 in / 43.2 x 33 x 20.32 cm
Checked bag size62 in (157 cm) in total157 cm (62 in) in total
Checked bag weight18 kg (40 lb) per bag in economy, 45 kg (100 lb) max for any bag23 kg (50 lb) per bag in economy, 45 kg (99 lb) max for any bag
Online check-in opens24 hours before24 hours before
Bag drop closes60 min before45 min before (domestic / short-haul), 60 min before (international / long-haul)
At the gate by20 min before15 min before (domestic / short-haul), 20 min before (international / long-haul)
Power banksStandard 100 Wh / 160 Wh rules2; in-flight use: not allowed
Carry-on that fits both
22 x 14 x 9 in (55.9 x 35.6 x 22.9 cm)
The smallest limit on each side
Personal item that fits both
17 x 13 x 7.9 in (43.2 x 33 x 20 cm)
The smallest limit on each side

Flying both on one trip? The trip checker shows which airline sets each limit, and the gate card keeps the rules on your phone.

Will your bag fit?

Measure with wheels, handles and pockets included. The order of the sides doesn't matter.

Questions people ask

Is the Frontier carry-on bigger than JetBlue?

Frontier's carry-on limit is roomier (24 x 16 x 10 in) than JetBlue's (22 x 14 x 9 in), about 38% more space.

What carry-on size fits both Frontier and JetBlue?

A bag no bigger than 22 x 14 x 9 in (55.9 x 35.6 x 22.9 cm) fits both carry-on limits, and 17 x 13 x 7.9 in (43.2 x 33 x 20 cm) fits both personal item limits. Check weight limits too.

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