Spring Airlines lets a standard economy ticket carry exactly one 7 kg bag into the cabin, and nothing else. That is the tightest carry-on weight limit of any major low-cost carrier in Asia. It is the single fact that shapes the whole Spring Airlines baggage policy.
Spring Airlines is China’s largest low-cost carrier. It flies under code 9C out of Shanghai. Its English site shares a portal with its Japan affiliate, Spring Japan.
The figures below come only from pages marked for flight 9C, not the Japan domestic fare pages on that same menu.
The carry-on limit people miss
On the standard fare, Spring Airlines allows one cabin bag up to 7 kg, about 15.4 lb. The size cap is 30 by 20 by 40 centimeters. That is about 11.8 by 7.9 by 15.7 inches.
The airline’s fare page does not list a separate personal item on top of that single bag.
Pay for the SpringPlus fare and the carry-on allowance rises to 10 kg, about 22 lb. The bag can also be larger, at 40 by 20 by 55 centimeters. Either number sits well below what most full service carriers allow for free.
Weighing the bag at home still matters on either fare.
Checked baggage is an add-on, not a default
A standard economy ticket includes no checked baggage at all. Every checked bag has to be bought separately, either at booking or later through the airline’s site.
SpringPlus changes that math. It bundles a 20 kg checked allowance, about 44 lb, together with the higher carry-on limit.
Comparing that bundle against paying for a checked bag alone is worth doing before checkout. The Spring Airlines baggage policy prices them very differently.
How the fees are actually priced
Spring Airlines prices extra baggage in weight bands of 5, 10, and 15 kg. On domestic China routes, a piece up to 10 kg runs CNY 300.
On international routes the same tier runs about USD 75. Matching local prices apply in Thailand, Japan, and South Korea.
Those same rates apply if a bag is flagged as overweight or oversized at the gate. Spring’s own terms add one more catch.
Money paid in advance for extra baggage is not refunded if the bag ends up under the limit. Buying baggage online ahead of the airport beats paying at the counter every time.
What travelers actually run into
One forum thread on Spring Airlines is titled BE AWARE. Its complaint is not that the limit is unreasonable. It is that the limit is easy to miss, buried in small print most travelers never open.
Frequent flyer forum threads on Spring’s cabin baggage rules show a recurring question too. Travelers ask whether the 7 kg cap covers a laptop bag along with the main bag. The fare page never spells that out.
That gap between the rule and what travelers notice is exactly why the Spring Airlines baggage policy trips people up. The safer reading is to treat 7 kg as the ceiling for everything carried on.
Booking from the United States
Spring Airlines lists no US routes on its English site. American travelers typically meet 9C while connecting through hub airports in China, Japan, or Southeast Asia.
The airline’s excess baggage page is still the one to check before that connection. It is the only page confirmed to reflect flight 9C rather than an affiliate fare.
A bag that clears Spring’s 7 kg cap can still fail a connecting carrier’s own carry-on rules. Check both sides of the itinerary.
Packing around a 7 kg limit
Weigh the bag before leaving home. Airport scales at Spring’s counters are unforgiving. A size checker confirms dimensions, but weight is the number that actually catches people on this carrier.
Shifting weight into checked baggage usually beats paying the gate rate. A baggage cost tool makes it easy to compare SpringPlus against pay as you go fees.
Budget carriers with similarly tight cabins, like AirAsia and Scoot, reward the same habit of weighing before you fly.
The bottom line
The Spring Airlines baggage policy comes down to one number: 7 kg in the cabin on a standard fare. Every checked bag is sold as an extra, and SpringPlus buys more room on both fronts.
Prepaying online beats paying at the gate. Read the baggage fee schedule on Spring’s site before you fly, not after.
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