Cut flowers are cooled right after harvest, packed in ventilated boxes and kept at roughly 0 to 4 °C with high humidity through every handoff until they reach the florist. Air freight makes this possible because it delivers in hours what sea or road would take days or weeks to do.
Key takeaways
- Freshness is decided by time and temperature, so pre-cool at the farm and keep the cold chain unbroken from truck to cold room to aircraft.
- Flowers are typically kept at about 0 to 4 °C with humidity near 95 percent to prevent dehydration.
- Use ventilated fibreboard boxes sized for the pallet, and book capacity early for peaks such as Valentine's Day.
- Plan paperwork up front: air waybill, phytosanitary certificate where the destination requires it, and any CITES permits.
- Put a temperature logger in the shipment so you can show where an excursion happened and support a claim.
Why are cut flowers shipped by air?
Cut flowers are shipped by air because they begin to lose quality within hours of harvest, and air freight is the only mode that moves them across oceans while they still have shelf life.
According to Air Cargo Week, air freight can deliver flowers to global markets within hours, where sea or road freight can take days or weeks. The same article, citing IATA data, puts the airfreight value of flowers at $3.7 billion in 2024, up from $852 million in 2003, and names Colombia, Ecuador and Kenya as the leading exporters, with Ethiopia emerging as a notable contributor. The United States is the largest importer, with more than 53 percent of the global market in that report, and the Netherlands follows at 31.2 percent, largely because it acts as a European hub.
A flower that spends too long in a warm warehouse will open early, droop or brown, and a vase life measured in days can shrink quickly. That is why the whole journey is built around speed and temperature, not just the flight.
What temperature and humidity do cut flowers need?
Flowers are commonly shipped at about 0 to 4 °C with humidity near 95 percent, which slows respiration and prevents dehydration.
Air Cargo Week gives that range and humidity figure for the trade. IATA's guidance on shipping perishables adds that time and temperature management is the core requirement for perishables, and that some produce needs lower temperatures to slow respiration and ripening. The IATA page does not list specific ranges, so the Perishable Cargo Regulations (PCR) manual is where you confirm the number for your product.
Different flowers tolerate cold differently, so the buyer's specification and the grower's guidance decide the final setpoint. Treat the range above as the general case, not a rule for every variety. For a broader view of perishables, see our perishables air freight guide.
How does the cold chain work from farm to aircraft?
The cold chain is a series of linked steps, and a break in any one of them is what spoils flowers.
- Harvest and pre-cooling. Stems are cut, graded, bunched and cooled at the farm so heat does not travel into the box.
- Refrigerated trucking. Boxes move to the airport in refrigerated trucks. Air Cargo Week lists refrigerated trucks, temperature-controlled warehouses and pre-cooled packaging as the core infrastructure.
- Airport cold rooms. Cargo waits in cold storage until the aircraft is ready to load.
- Loading and flight. Pallets are built, wrapped and loaded as late as safely possible.
- Arrival and onward delivery. The receiver clears customs and moves the boxes to a cold room, then to wholesalers and florists.
Research on African cut-flower airfreight, summarized in trade press, points to the weak spots: little temperature monitoring, high temperatures when cargo reaches the airport, poor cooling and holding facilities, handling and transfers, and a lack of temperature control during the flight. Each is a place to ask your forwarder pointed questions.
Some airports invest specifically here. Swissport, for example, has described a vacuum cooler at its Nairobi cargo center able to cool two main deck pallets from 24 °C to 2 °C in 22 minutes, which shortens the time flowers spend warm.
How should cut flowers be packed for air freight?
Pack flowers in sturdy, ventilated fibreboard boxes that hold their temperature, survive stacking and handling, and fit the pallet.
Air Cargo Week describes ventilated fibreboard boxes with hydrating gel packs as common. IATA's guidance says packaging must cope with altitude changes, keep internal temperature stable while outside conditions change, and be strong enough to stack and survive ground and air handling. It also notes that some countries require pest netting over pallets of fruit, vegetables and flowers, and that polymer film wrapped around a pallet helps protect against moisture and leakage.
| Packing item | Purpose | Check before you ship |
|---|---|---|
| Ventilated fibreboard box | Airflow for cooling, stackable strength | Vent alignment when boxes are stacked on the pallet |
| Hydrating gel packs | Moisture for the stems | No leakage onto other cargo |
| Pallet wrap or film | Protects against moisture and holds the load | Does not trap heat or block airflow |
| Pest netting | Required by some importing countries | Destination plant health rules |
| "This way up" and perishable labels | Tells handlers how to treat the box | Labels meet the PCR requirements |
Pallets are charged by weight or volume, whichever is greater, and flowers are bulky for their weight. Use our chargeable weight calculator to see what your box dimensions do to cost, which also explains how chargeable weight works.
What paperwork do flower shipments need?
Every flower shipment needs a completed air waybill, and many also need plant health documents and, for protected species, CITES permits.
IATA says an air waybill is required for all perishable air cargo shipments and that the electronic air waybill is preferred for sharing information across the supply chain. Air Cargo Week adds that shipments may require CITES permits, meet country-specific import restrictions and pass strict inspections. Which certificates apply depends on the destination, so check with the importing country's plant health authority before you book. Our guide to the air waybill shows how to fill it in.
IATA assigns responsibilities on both sides. The shipper or its agent declares shipment details, states special handling needs, obtains permits and handles marking and documentation. The carrier checks for regulations that could delay cargo, confirms space and special storage, and prepares alternatives for flight delays.
What goes wrong, and how do you reduce claims?
Most flower losses come from temperature excursions and delays, and you reduce them by monitoring, planning and choosing certified partners.
IATA's guidance, citing the Perishable Cargo Regulations, says fruit, fish and seafood, and cut flowers account for about 40 percent of perishable claims. Common causes include appearance problems, decay, damaged packaging and melted refrigerant. A few habits help:
- Monitor temperature. Loggers give you an evidence trail. See temperature data loggers in air cargo.
- Limit time on the ramp. Ask how long cargo sits between cold room and aircraft.
- Choose certified handlers. IATA's CEIV Fresh program sets standardized perishable procedures and aims to improve staff competency and reduce food loss and waste.
- Book early for peaks. Space tightens around events like Valentine's Day, so confirm capacity before harvest.
Capacity also matters structurally. IATA has noted that flower exporters rely heavily on belly space in passenger aircraft, and that cuts to passenger flights during 2020 hit exports hard, with IATA estimating drops of around 70 percent in Kenya, 25 percent in Colombia and 15 percent in the Netherlands. A forwarder with access to both belly and freighter capacity gives you more options when schedules change.
How can you ship flowers with a forwarder you can rely on?
Give your forwarder the product, quantity, box dimensions, harvest time, required temperature and destination early, and ask who is responsible at each handoff.
Perishable lanes reward planning. Jumbo Air Cargo's JumboFresh service covers perishable freight, and you can request a quote with these details. Whoever you use, agree in advance on the temperature range, the alarm contact if a logger shows a problem, and how a claim would be handled.
Frequently asked questions
What temperature should cut flowers be shipped at?
Industry sources describe a range of about 0 to 4 °C with humidity near 95 percent. Always confirm the exact range for your flower type against the current IATA Perishable Cargo Regulations and your buyer's specification.
Why are flowers shipped by air instead of sea?
Flowers begin to degrade within hours of harvest. Air freight reaches markets within hours, while sea or road freight can take days or weeks.
Do cut flowers need a phytosanitary certificate?
It depends on the destination country's import rules. Many countries require one and inspect flower shipments on arrival, so check the importing country's plant health authority before booking.
Who are the biggest cut-flower exporters by air?
Air Cargo Week, citing IATA data, names Colombia, Ecuador and Kenya as the leading exporters, with Ethiopia emerging.
