Carry-On Only for Miami: Airlines, MIA vs FLL, and Packing Tips

Miami is one of the most carry-on friendly US destinations if you pick the right airline and pack intelligently for the heat. The city has two major airports — Miami International (MIA) and Fort Lauderdale-Hollywood International (FLL) — and the choice of airport affects which airlines are most practical.

American Airlines at MIA: The Hub Advantage

Miami is American Airlines' southern hub, and that shows in the quality of Terminal D and E. American's giant international operation runs through these terminals, and for domestic travelers the facilities are modern and well-organized. American includes a carry-on bag at no charge for most main cabin fares. Basic Economy is the exception — only a personal item is included, making carry-on only travel difficult unless you pack an extremely small bag.

If you are flying American into Miami, Terminal D is likely your arrival point. TSA PreCheck lanes at MIA are well-staffed and the airport's size is worth budgeting for: allow at least 90 minutes for domestic security and boarding at peak times, and longer for international connections.

Spirit Airlines at FLL: Personal Item Is Your Best Friend

Spirit's model is built around paying only for what you use. That means the personal item under the seat is free, but overhead bin access is a paid upgrade. A soft-sided bag that fits within 45 × 35 × 20 cm and goes under the seat travels free on Spirit. Pack light enough to stay within personal item dimensions and a Spirit Miami flight becomes surprisingly affordable.

Fort Lauderdale is Spirit's busiest base. FLL is smaller than MIA, with shorter security lines and easier navigation. For carry-on only travelers on Spirit, arriving at FLL 75 minutes before a domestic departure is typically comfortable.

Frontier Airlines at FLL: Same Strategy as Spirit

Frontier follows a similar model to Spirit. The free personal item fits under the seat (up to 35 × 20 × 20 cm), and carry-on bags in the overhead bin are charged separately. Frontier also primarily operates from FLL rather than MIA for South Florida routes.

The WORKS bundle on Frontier includes a carry-on plus checked bag plus other perks for a fixed price. If you need overhead space, pricing the WORKS bundle against an à la carte carry-on fee is worth doing during booking — the bundle is sometimes cheaper on popular routes.

JetBlue: Blue Basic vs Blue

JetBlue operates out of Fort Lauderdale with a large presence. Blue Basic, its cheapest fare tier, includes only a personal item — no overhead bin space. Blue fares and above include a carry-on at no additional charge. JetBlue is known for good legroom even in standard economy, which makes it comfortable for carry-on only travelers who want to keep a bag at their feet.

Miami Packing: Beach-Ready Without Overpacking

Miami's climate is straightforward from a packing perspective: hot, humid, and sunny most of the year, with afternoon thunderstorms from June through September.

Swimwear: Pack at least two swimsuits. One will always be damp. Quick-dry fabric is essential — heavy cotton swimwear takes overnight to dry in humid conditions. Pack both in a small mesh laundry bag to contain moisture.

Lightweight clothing: Linen shorts and light cotton or linen dresses take up minimal space and breathe well in Miami's heat. Avoid heavy fabrics entirely. Three or four changes of clothing is enough for most Miami trips.

One upscale outfit: South Beach restaurants and rooftop venues maintain dress standards. One dress shirt or a good dress weighs almost nothing and handles the one or two dinners where smarter clothing matters.

Sunscreen at 100 ml or under: Full-size sunscreen bottles are large and breach the 100 ml liquid limit. Buy travel-size bottles or decant into a reusable bottle. Sunscreen is widely available at pharmacies in Miami if you run out.

Compact umbrella: June through September, afternoon storms in Miami arrive quickly and pass quickly. A 200-gram folding umbrella handles these showers without requiring a full rain jacket.

Sarong: A sarong is genuinely multi-purpose in Miami — beach towel, cover-up, afternoon layer for air-conditioned interiors, and improvised picnic blanket. It packs flat and weighs almost nothing.

Flip-flops: Compact, flat, and appropriate for the beach, pool deck, and casual beach bars. Pack one pair alongside a smarter shoe option for evenings.

MIA vs FLL: Which Airport to Choose

Miami International (MIA) is American's hub and the right choice for American flights. It handles international connections well and has a good range of food and retail options in the renovated terminals. Allow extra time for its size.

Fort Lauderdale (FLL) is faster and less stressful for carry-on only travelers. Security is quicker, the layout is simpler, and it serves Spirit and Frontier's FLL operations well. The drive or Uber from Miami to FLL takes around 45–60 minutes depending on traffic — factor this in if your accommodation is in South Beach or Downtown Miami.