✓ Policy web-verified 2026-06-20
JetSmart is a true ultra-low-cost carrier, and its cheapest fare — branded Fly Light (you’ll also see it called the “Zero” base fare) — gives you exactly one thing: a single personal item up to 45 x 35 x 25 cm that fits under the seat in front of you. No overhead carry-on, no checked bag. Everything beyond that under-seat item is a paid add-on, and the price climbs the longer you wait to buy it.
JetSmart only flies short- and medium-haul routes inside South America — Chile, Argentina, Peru, Colombia, plus a handful of regional international hops (Brazil, Uruguay, Paraguay, and a Lima–USA service). There is no long-haul or intercontinental network here, so unlike North American or full-service carriers there’s no “transpacific fare with a free bag” trick: the cheapest fare strips the checked bag on every route, domestic and international alike. Want a roller bag in the cabin or a suitcase in the hold? You buy it, or you buy the SMART/FULL bundle.
Quick facts
| Free personal item | 45 x 35 x 25 cm, max 10 kg, under seat |
| Cabin carry-on | 55 x 35 x 25 cm, 10 kg — PAID (not in Fly Light) |
| Cheapest fare | Fly Light — personal item only |
| Checked bag | Paid add-on, up to 23 kg / 158 cm linear |
| Typical checked fee | ~USD 20-50 per segment (varies by route/date/channel) |
| Bundle with bag | SMART fare includes carry-on + 1 checked |
| Max checked weight | 32 kg hard limit; 23-32 kg = overweight fee |
| Bags per passenger | Up to 5 checked |
Cabin bag & personal item
| Item | Allowance |
|---|---|
| Personal item (included) | 45 x 35 x 25 cm, up to 10 kg — fits under the seat, included in every fare incl. Fly Light |
| Cabin carry-on (paid) | 55 x 35 x 25 cm, up to 10 kg — overhead bin; NOT in Fly Light, included from the SMART bundle up |
Checked baggage & fees
| Standard checked bag | Up to 23 kg, max 158 cm linear (L+W+H) |
| Typical fee | ~USD 20-50 per bag per segment, varies by route, date and where you buy |
| Cheapest when | Bought online at time of booking; more in Manage Booking; most expensive at the airport/gate |
| Overweight 23-32 kg | Flat ~USD 35 international / ~CLP 22,000 domestic surcharge |
| Over 32 kg | Not accepted — must be split |
| Quantity | Up to 5 checked bags per passenger |
Baggage by region & route
Checked-bag inclusion on the cheapest fare can depend on where you fly, not just the fare name. Here is what the lowest fare includes by route:
| Route / region | Cheapest fare includes |
|---|---|
| Domestic (Chile, Argentina, Peru, Colombia) | No checked bag |
| Regional international (Brazil, Uruguay, Paraguay, Lima-USA) | No checked bag |
What each fare includes
| Fare | Personal | Cabin | Checked |
|---|---|---|---|
| Fly Light | 45 x 35 x 25 cm | Paid add-on | Paid add-on |
| SMART | Included | Included (55 x 35 x 25) | 1 x 23 kg included |
| FULL (Flex) | Included | Included (55 x 35 x 25) | 1 x 23 kg included + flexibility/refund |
What you actually get on a cheap fare
On a cheap JetSmart deal fare you get an under-seat bag and nothing else. Fly Light is genuinely a personal-item-only fare — no overhead carry-on, no hold luggage — and because JetSmart has no long-haul flying, that’s true on every route it operates. Don’t expect the “long-haul includes a bag” exception you get from North American carriers; here, even the international hops strip it.
Budget accordingly: a checked bag typically runs ~USD 20-50 per segment if you add it online at booking, and that’s per leg — a round-trip doubles it. A cabin carry-on is its own paid extra too. If you need both a carry-on and a checked bag, price the SMART bundle against buying each piece separately; on a real trip the bundle often wins. Always add bags at the time of booking — adding later, and especially at the airport, costs noticeably more.
Oversize, sports & special items
Oversized and special items (sporting equipment, musical instruments, surfboards, bikes) are carried as special/oversize baggage at extra cost and should be declared and paid in advance through the call center or airport — they’re handled separately from the standard 23 kg allowance and remain subject to the 32 kg-per-piece hard cap. Strollers and mobility aids for passengers who need them are carried per standard accessibility rules.
2026 change: from January 2026 JetSmart shifted to assessing cabin baggage by total volume rather than the number of items — you may carry more than one personal-item-class object as long as everything together fits the 45 x 35 x 25 cm under-seat gauge. The overhead carry-on remains a separate paid product, so this doesn’t quietly add a free cabin bag to Fly Light.
Frequently asked questions
Does JetSmart's cheapest fare include a checked bag?
No. The cheapest fare, Fly Light, includes only one under-seat personal item (45 x 35 x 25 cm, up to 10 kg). There is no free checked bag on any route, domestic or international.
Is a carry-on bag free on JetSmart?
No. Only the under-seat personal item is free. An overhead carry-on (55 x 35 x 25 cm, up to 10 kg) is a paid add-on on Fly Light, or comes bundled in the SMART and FULL fares.
How much does a checked bag cost on JetSmart?
Roughly USD 20-50 per bag per flight segment, varying by route, date and channel. It’s cheapest bought online at booking, more via Manage Booking, and most expensive at the airport.
What is JetSmart's checked bag weight limit?
23 kg per bag at the standard allowance, with a maximum linear size of 158 cm. Bags from 23 to 32 kg incur an overweight surcharge (about USD 35 international); anything over 32 kg is not accepted.
Which JetSmart fare includes a checked bag?
The SMART fare includes a carry-on plus one 23 kg checked bag and seat selection. FULL (Flex) adds flexibility, priority boarding and refunds on top. Fly Light includes neither.
Does the checked-bag rule change on JetSmart's international routes?
No. JetSmart only flies short- and medium-haul within and around South America, with no long-haul network, so the cheapest fare excludes a checked bag on every route — including its regional international flights.
How many bags can I check on JetSmart?
Up to 5 checked bags per passenger, each up to 23 kg standard (or 23-32 kg with an overweight surcharge). Each piece is priced separately.
What changed for JetSmart baggage in 2026?
From January 2026, cabin baggage is judged by total volume rather than the number of items — you can carry multiple small items as long as they together fit the under-seat personal-item gauge. The paid overhead carry-on is unaffected.
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