Sea Freight vs Air Freight: The Numbers Behind the Shift
Ocean is roughly 40–50% cheaper and dramatically lower carbon, but it demands a post-harvest discipline most farms have not built yet. An honest comparison.
Bloom Farm Editorial · Supply Chain
Air freight built the East African flower industry. It is fast, it is proven, and it is expensive — and as air costs climbed, exporters started looking seriously at the ocean alternative. The shift is real, but it is not a simple swap.
Cost
Figures as reported by source[1]
Ethiopia has been charging around $2.50 per kilo shipped to the world market, which keeps Ethiopian produce price-competitive against origins with higher freight rates. Freight cost is not a rounding error in flower economics — on a low-value grade it can exceed the value of the stem itself, which is precisely why the freight decision should be made per grade rather than per farm.[1]
Carbon
The emissions gap is not incremental. Sea freight emits roughly 10–40 gCO₂ per tonne-kilometre; air freight emits 500–1,050 gCO₂ — a 40–50x multiplier. For any buyer with a Scope 3 target, that ratio is doing the arguing for them, and increasingly the request to move volume to sea is coming from the retailer rather than the grower.[5]
Does the quality hold up?
Modern reefer containers with controlled-atmosphere technology slow respiration and limit ethylene buildup, and can theoretically deliver flowers in conditions comparable to air freight — sometimes better, because the temperature stays genuinely constant for the whole voyage rather than cycling through tarmac heat, unrefrigerated ground handling, and an unheated hold.[2]
Air is not going away
Peak season makes the case for air by itself. Between late January and 14 February 2026, Network Airline Management moved 3.1 million kilograms of fresh cut flowers from Nairobi to Liège. No ocean schedule can serve a demand spike with a two-week window and a hard date.[4]
How to decide, per consignment
- Sea suits programme volume with predictable weekly offtake, longer-vase-life varieties, and buyers with carbon targets.
- Air suits peak season, new variety launches, short-vase-life product, and any order where the delivery date is contractual.
- Run vase-life trials per variety before committing a variety to ocean. Variety performance under 21 days of transit differs far more than farm averages suggest.
- Model landed cost per stem by grade, not per kilo by farm. The freight decision flips between grades on the same farm.
Sources
Every figure and claim above is drawn from the published reporting and research below.
- 1Flower exporters eye sea freight as air costs shoot up — Business Daily
- 2Striking a Balance Between Air Freight and Sea Freight of Flowers — Thursd
- 3Cool transportation solutions for boosting Kenya’s flower exports — Maersk
- 4Air Freight: 3,100 Tonnes of Flowers Shipped from Kenya to Europe for Valentine’s Day 2026 — LogistAfrica
- 5Air vs Sea Freight: Costs, CO₂ & Comparisons 2026 — FreightAmigo
