Ocean Vs. Air Freight: What SMB Shippers Need To Know For 2025
For small and medium-sized enterprise shippers, choosing sea or air transport is always a "cost-time" balance question: sea transport is cheap but takes 30-40 days, while air transport is fast but 5-10 times more expensive. However, the global logistics environment in 2025 is experiencing multiple variables impact - the Red Sea crisis has led to detours in sea transport, the explosion of e-commerce has pushed up demand for air transport, and changes in tariff policies have reshaped transportation costs. This article combines the latest data and industry insights from Freightos to analyze the key changes in sea and air transport from six dimensions, providing small and medium-sized enterprises with a practical transportation decision-making guide.
Table of Contents
1. The Red Sea crisis continues to affect air and ocean
2. E-commerce trends drive demand for air cargo
3. Potential changes in tariffs and minimum requirements
4. Transshipment hubs make ocean shipping more complicated
5. Evolving carrier alliances may affect capacity and rates
6. Ocean and air freight comparison in 2025: actionable suggestions for SMEs
1. The Red Sea crisis continues to affect air and ocean
1.1 Ocean shipping: cost and time efficiency double increase due to detour
Since the Houthi armed forces attacked merchant ships in the Red Sea at the end of 2023, 12% of the world's sea freight has been forced to detour around the Cape of Good Hope, directly resulting in:
Freight rate surge: Container freight rates on the Asia-Europe route rose from US$2,410/FEU in 2022 to US$3,910/FEU at the end of 2024, an increase of 62%. Freightos terminal data shows that bypassing the Cape of Good Hope increases the transportation cost of a single box by $800-1,200;
Extended transit time: The transit time from Asia to the Mediterranean has been extended from 21 days to 35 days, and due to port congestion, the on-time rate has plummeted from 85% to 55%. A Chinese small appliance company reported that customer claims for goods shipped to Italy increased by 30% due to delays.
1.2 Air freight: diversion effect pushes up prices
The shift of high-value, time-sensitive goods (such as electronic products and medical devices) to air freight has pushed the trans-Pacific air freight price to stabilize at $5-6/kg, up 25% from before the crisis. However, air transport also faces challenges:
Tight space: In Q4 2024, the utilization rate of air transport space from Asia Pacific to North America reached 95%. Small and medium-sized enterprises need to book 3 weeks in advance, and the success rate of temporary booking is less than 40%;
Security inspection upgrade: Airports around the Red Sea have strengthened security checks, and the cargo detention time has increased by 12-24 hours. Special cargo such as lithium batteries require additional document review.
1.3 Enterprise response: Rebalance of cost performance
Case of a Shenzhen 3C product exporter: In the past, 90% of the goods were shipped by sea. In 2025, 20% of high-value headphones (single ticket value > US$5,000) will be transferred to air transport. Although the cost increased by 15%, the customer's order increase of 10% was obtained due to on-time delivery.
2. E-commerce trends drive demand for air cargo
2.1 E-commerce small packages reshape the air transport landscape
Fast fashion e-commerce represented by Temu and Shein rely on the "air transport small package + minimum duty-free amount (less than US$800)" model to drive global e-commerce air transport volume to grow by 18% in 2024. However, this model faces dual challenges:
Sea transport is difficult to meet time efficiency: 30-day sea transport time efficiency cannot match the "7-day delivery" demand of e-commerce, and 85% of fast fashion e-commerce still rely on air transport;
Policy risks are increasing: The United States intends to cancel the minimum duty-free amount for Chinese goods, forcing companies to explore "sea transport to overseas warehouses + local distribution", such as Shein's establishment of 5 transit warehouses in Mexico, and the proportion of sea transport has increased from 10% to 30%.
2.2 The rise of sea-air transport
Some e-commerce companies are trying the combination of "sea freight for the first leg + air freight for the last leg":
Cost advantage: 15 days of sea freight from China to the west coast of the United States + 3 days of domestic air freight, 40% lower cost than pure air freight, and 10 days faster than pure sea freight;
Applicable scenarios: daily necessities (such as small household items) with a unit price of US$20-50 can avoid the high cost of air freight and meet the 15-20 day delivery requirement.
2.3 Data comparison: cost-effectiveness of e-commerce transportation models
| Mode | Cost (US$/kg) | Time limit (days) | Damage rate | Policy risk |
|---|---|---|---|---|
| Pure air transport | 5-8 | 3-7 | <1% | Changes in duty-free policy |
| Air-sea transport | 2-4 | 12-18 | 3% | Transit warehouse management |
| Pure sea transport | 0.5-1 | 30-40 | 5% | Time delay |
3. Changes in potential tariffs and minimum requirements
3.1 Tariff expectations trigger a "rush to ship"
The United States intends to impose 25%-60% tariffs on Mexican and Chinese goods, resulting in:
Advance stocking for ocean shipping: In Q1 2024, China-US ocean shipping volume surged by 22%. In order to avoid tariffs, companies shipped 3-6 months of inventory in advance, pushing up short-term ocean shipping prices by 15%;
Increased compliance costs for air transport: If the minimum duty-free amount is cancelled, air transport parcels will need to pay an additional $100-300 per ticket for customs clearance fees. A jewelry e-commerce company estimates that the annual compliance cost will increase by 800,000 yuan.
3.2 Transportation strategy during the policy window period
Sea transportation is the main mode, and air transportation is the auxiliary mode: Goods with a unit price of <200 USD are transported by sea (accounting for 70%), and goods with a unit price of >200 USD and high timeliness requirements are transported by air (accounting for 30%);
Utilize the free trade zone policy: transit through Mexico and Vietnam, and use agreements such as USMCA and RCEP to reduce tariffs. For example, a textile company transferred 20% of its production capacity to Vietnam, and the cost of sea transportation to the United States decreased by 12%.
3.3 Expert advice
Adam Lewis, president of Clearit Customs Brokers, pointed out: "The three months before the tariff policy changes are the golden period for stocking up. Companies need to calculate the balance between 'tariff increase' and 'warehousing cost' - if the tariff increases by more than 20%, it is economical to stock up 6 months in advance."
4. Transshipment hubs make sea transportation more complicated
4.1 The double-edged sword of transshipment hubs
To avoid the risk of the Red Sea, 65% of sea freight is transshipped through hubs such as Dubai and Singapore, but it brings new problems:
Delays are normalized: Transshipment increases the handling time of goods by 2-3 days, and due to warehouse allocation problems, 15% of the goods have "port-to-port timeliness meets the standard, but overall delays";
Increased operating costs: Each piece of goods needs additional labeling and tallying, and the operating cost of a single ticket increases by 5-10 US dollars.
4.2 The " direct advantage" of air transport
Air transport avoids transit risks by "point-to-point direct", and is particularly suitable for:
Precision instruments: such as semiconductor equipment, the damage rate of sea transport transit is 5%, while the damage rate of air transport is only 0.1%;
Fresh food: sea transport transit requires multiple temperature controls, the loss rate is 12%, and the loss rate of direct air transport is < 3%.
4.3 Data confirmation
Freightos research shows that the on-time delivery rate of sea freight using transshipment hubs is 72%, while the on-time rate of direct air transport is 95%. The comprehensive cost of the two tends to be close when the value of the goods is > US$500/cubic meter.
5. Evolving carrier alliances may affect capacity and rates
5.1 Opportunities and challenges brought by the restructuring of shipping alliances
At the beginning of 2025, the world's top three shipping alliances will undergo adjustments:
2M Alliance disbanded: Maersk and MSC terminated their cooperation and will operate separately from January 2025, which may lead to a 10% reduction in capacity on the Asia-Europe route and a short-term rate increase of 5%-8%;
New alliances emerge: Maersk and Hapag-Lloyd established "Gemini Cooperation", focusing on the North America-Europe route, and are expected to provide more flexible space allocation.
5.2 Impact on small and medium-sized enterprises
Changes in bargaining space: In the early stages of alliance restructuring, small and medium-sized shippers may face uneven space allocation. It is recommended to sign contracts with 2-3 carriers at the same time to spread risks;
Rate fluctuations: In Q2 2025, shipping rates may fluctuate by 10%-15% due to alliance competition, and real-time price comparisons need to be made using the Freightos platform.
5.3 The air freight market is relatively stable
Due to the high concentration of carriers (the top five account for 70%), the air freight market is less affected by alliance changes, and prices are mainly driven by fuel costs and e-commerce demand.
6. Comparison of sea and air freight in 2025: Actionable suggestions for small and medium-sized enterprises
6.1 Dynamically monitor market trends
Establish a policy warning table: focus on tracking the effective date of US tariffs (such as steel tariffs on March 12), signals for the lifting of the Red Sea crisis, and the progress of the adjustment of the minimum duty-free amount;
Use digital tools: view the real-time freight index through Freightos Terminal, and set automatic reminders for "sea freight prices increase by more than 10%" and "air freight prices fall by more than 15%".
6.2 Diversification of transportation modes
"3+2" combination strategy: 30% of high-value goods are transported by air (unit price > US$1,000), 20% of urgent orders are transported by air, and 50% of regular goods are transported by sea;
Testing sea-air transport: For goods with a unit price of US$50-200, try "sea transport to nearshore warehouse + local express delivery", such as 12 days of sea transport from China to Mexico, and then land transport to the United States via FedEx, the total cost is 60% lower than pure air transport.
6.3 Supply chain resilience construction
Pre-sale of warehouse space: Sign a "sea freight warehouse pre-sale agreement" with freight forwarders to lock in 20% of the space in Q3 2025 to avoid price surges during the peak season;
Emergency plan: Develop an alternative plan for "the Red Sea crisis lasts for more than 6 months", such as rerouting 10% of the goods to routes outside the Suez Canal, or partially switching to air transport.
6.4 Digital tools improve efficiency
Freightos market platform: real-time comparison of quotations from 20+ carriers, such as the current sea freight price from Shenzhen to Los Angeles is US$2,800/FEU, and the air freight price is US$5.5/kg, and a cost comparison table can be generated with one click;
Intelligent order splitting system: automatically allocates transportation modes according to the value and timeliness requirements of the goods to avoid human decision-making errors.
Summary: Find the optimal solution among variables
The choice of sea and air transportation in 2025 is essentially a multi-dimensional game of "risk-cost-efficiency":
Sea transportation is suitable for: low-value, large-volume, non-urgent goods (such as furniture and raw materials), but transit delays and policy fluctuations must be accepted;
Air transportation is suitable for: high-value, small-volume, time-sensitive goods (such as electronic products and samples), but cost pressure and compliance challenges must be addressed;
Intermediate solution: sea-air combined transportation and near-shore warehouse mode to balance the cost and timeliness of small and medium-sized batches of goods.
As Freightos chief analyst Judah Levine said: "There is no absolute optimal solution, only a dynamic balance. Small and medium-sized enterprises should establish a 'data-driven + agile adjustment' transportation strategy - automatically trigger air transport plans when sea freight prices rise by more than 30%, and decisively prepare goods in advance when the policy window appears."
By real-time monitoring of the market, diversifying transportation combinations, and making good use of digital tools, small and medium-sized enterprises can fully find their own cost-effective optimal solution in this transportation model transformation, so that goods can arrive on time in every corner of the world under the premise of controllable costs.
