For your first standard checked bag under 50 lbs. (23 kg),
Baggage size must not exceed 62 inches (158 cm) when you total LENGTH + WIDTH + HEIGHT
https://www.delta.com/jp/en/baggage/overview
Excess & Overweight Baggage
If you’re bringing a bag or two, or even 3 to 10, review the guidelines for associated fees. Keep in mind, there are separate fees for each limitation a bag exceeds: including size, weight or quantity limits. For items with a unique size, shape or weight, check Special Items. Exceptions may apply to Active Military and Medallion Members.
You can bring most sports equipment with you on your trip, though keep in mind that standard checked baggage fees apply based on cabin, travel region and total number of checked bags. Overweight baggage fees apply to bags that exceed 50 lbs and bags cannot exceed 115 linear in/292 cm (length + width + height). Items in excess of the baggage allowance will be subject to additional, overweight, and oversized baggage fees. Please refer to Calculate Baggage Estimate for additional details. All Sports Equipment must be packed in a durable protective container designed specifically for the equipment.
If you don’t see your item below, then normal baggage allowances, fees and handling policies apply Items over 115 linear inches (292cm) and/or 100 lbs (45kg) will not be accepted CAD amount will be charged exit Canada, and EUR amount will be charged exit Europe See Previous Checked Bag Fees for tickets purchased before 12AM (ET) July 17, 2019
Bicycles, non-motorized touring or single seat racing, are allowed as checked baggage on most flights, with the exception of certain Delta Connection® carriers.
Standard baggage allowance and fees based on cabin and travel region apply
Bicycles weighing over 50 lbs. will be charged the applicable excess weight fee
If the outside linear dimensions (length + width + height) exceed 115 linear inches (292 cm) or exceeds 100 lbs, the item will not be accepted
Items in excess of baggage allowance will be subject to additional or overweight baggage fees
Non-motorized touring or single seat racing bicycles must be packed in a durable protective container designed specifically for bicycles.
A limited liability release form must be signed by the passenger in the case that the bike is not properly packed
If the bicycle is packaged in a hard shell case specifically designed for transporting bicycles, then a limited release form is not required
If the bicycle is packaged in a soft sided travel bag or anything other than a hard shell case, a limited release form will need to be signed
