Here is a list from surfline for surboards, generally works the same for snowboards
EVERY AIRLINE:
http://www.surfline.com/travel/boardbag_charges.cfm?id=15425 Aero California
www.aerocalifornia-usa.com 800-237-6225
$35
Price is one-way per bag, bag must be under 50 lbs
Aero Mexico
www.aeromexico.com 800-237-6639
$60
Price is one-way per board, maximum length 9' - packed
Air France
www.airfrance.com 800-237-2747
$125
One-way per bag, ouch!
Air Pacific
www.airpacific.com 800-227-4446
Varies.
Variable Excess Baggage Charge + $20 "Bulky Item" charge.
Air New Zealand
www.airnewzealand.com 800-262-1234
Free
As part of your two-bag limit, otherwise $80
Alaska
www.alaskaair.com 800-252-7522
$75
One-way per bag.
American Airlines
www.aa.com 800-433-7300
$100
One-way per bag under 70 lbs
American West
www.americawest.com 800-363-2542
$80
One-way per board
Bahamas Air
up.bahamasair.com/
800-222-4262
N/A
No boards allowed.
British Airways
www.britishairways.com 800-AIRWAYS
No
No surfboards allowed on British Airways flights.
China Air
www.china-airlines.com 800-227-5118
Varies
Price varies with destination. One-way: Under 109"
Continental*
www.continental.com 800-523-3273
$95
One-way, 2 boards per bag. Max 115" and 70lbs.
COPA
www.copaair.com 800-FLY-COPA
$50
One-way per board. Limit 2 boards per passenger.
Delta*
www.delta.com 800-221-1212
$150
One-way per board.
Hawaiian Air
www.hawaiianair.com 800-367-5320
$80
One-way. Two boards max. per bag, Max height 11ft.
Iberia
www.iberia.com 800-504-8030
Varies
Price varies with destination. Over 80 inches will be triple charged.
Japan Air
www.japanair.com 800-525-3663
Varies
Price varies with weight. 1.5% multiplied by the excess baggage lbs.
Jet Blue*
www.jetblue.com 800-538-2583
$25
One-way per bag. *No excess baggage (including surfboards) allowed on flights to the Bahamas or Dominican Republic
Korean Air
www.koreanair.com 800-438-5000
$70/$140
Under 109"/Over 109" One-way per board
Lan
www.lan.com 866-435-9526
$100 to 150
One-way per bag. Price varies with destination.
Lufthansa
www.lufthansa-usa.com 800 645-3880
$100/$200
Under 78"/Over 78", per board, not bag, One-way, must reserve spot for the board
Malaysian
www.malaysiaairlines.com 800 552 9264
Varies
Price varies with destination. Bags are 50% of normal excess baggage charge
Mexicana
www.mexicana.com 800-531-7921
$75
One-way per bag, Max 100"
Northwest
www.nwa.com 800-225-2525
$80
One-way per bag
Qantas
www.qantas.com.au 800-227-4500
Free
Free as part of your two bag limit. Otherwise $53 each way.
Singapore
www.singaporeair.com 800-742-3333
Free
As part of your two bag limit. Otherwise, $109 each way
South African Airlines
www.flysaa.com 800-722-9675
Free
As part of your two bag limit, not exceeding 109", otherwise, $125
Southwest
www.southwest.com 800-435-9792
$50
One-way per bag (2 boards per bag). No size restricitons.
TACA
www.taca.com 800-400-TACA
Free/$100
No charge for domestic flights, $100 for international. Limit 2 boards per passenger.
Thai
www.thaiairways.com 800-426-5204
$100
One-way per board.
United*
www.united.com 800-864-8331
$100/$200
Under 109"/Over 109", One-way per bag, 2 boards per bag
USA3000
www.usa3000airlines.com 877-USA-3000
$50/$100
One-way: $100 if over 50 lbs.
USAir
www.usairways.com 800-245-4882
$80
One-way per board
Varig
www.varigbrasil.com 800-468 2744
$42.50/$85
Under 109", $42.50 per board each way, Over 109", $85 per board each way
Virgin Atlantic
www.virgin-atlantic.com 800-821-5438
Free
Free, limit one per customer