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Checked Luggage Allowance
International Travel - between North America and Africa / Asia / Europe / India / Middle East)
Coach Class: Each ticketed passenger is allowed two (2) pieces of checked luggage.
Exception for Coach Class International travel with a connection time of eight (8) hours or more that requires luggage to be re-checked for a flight within the US, Canada, Mexico and Caribbean the Domestic Checked Luggage Allowance applies.*
Each piece: 50 pounds (23 kg) with linear dimensions not to exceed 62 inches (158 cm).
Exceptions for trans-Pacific travel wholly between U.S./Canada and the Philippines, China and Hong Kong, checked pieces may weigh up to 70 pounds (32 kg) each. Beginning August 1, 2008 for ticketing and travel on/after August 1, 2008, these exceptions will be removed. Travel between these countries will be subject to the standard Economy free luggage allowance of two (2) pieces up to 50 pounds (23 kgs) each, with a linear dimension not to exceed 62 inches (158 cm) each.
Checked luggage within the free 2 bag allowance that weigh more than 50 pounds and up to 70 pounds will be assessed a $50.00 heavy bag fee.
Checked luggage within the free 2 bag allowance whose linear dimensions exceed 62 inches will be assessed 2 excess baggage charges. See rate table.
(Applicable to Trans-Pacific travel between North America and Asia) Checked luggage within the free 2 bag allowance whose weight exceeds 70 pounds will be assessed 3 excess baggage charges.
See rate table.
*Coach Class International travel with connection times of eight (8) hours or more in the US, Canada, Mexico and Caribbean the Domestic Checked Luggage Allowance applies.
Each piece: 50 pounds (23 kg) with linear dimensions not to exceed 62 inches (158 cm). Or, for trans-Pacific travel exception noted above, each piece may weigh 70 pounds (32 kg) with linear dimensions not to exceed 62 inches (158 cm).
Northwest Airlines' Silver, Gold and Platinum WorldPerks® Elite customers, SkyTeam Elite customers and passengers booked in full fare classes (Y or B) may check two bags free of charge. Customers booked in First Class may check up to three bags free of charge. Luggage in excess of these special free allowances will be charged a fee of $100 per piece each-way.
Get answers to frequently asked questions about Northwest Airlines' Free Luggage Allowance
http://www.nwa.com/travel/luggage/checked.html