Ticketmaster via TravelZoo has US Open Tennis Championship 2009 tickets for as low as $21. Tickets are sold in pairs with the Buy 1 Get 1 FREE offer (50% off). The 2009 US Open Tennis Championship begins Aug. 31 – Sept. 13 and takes place in New York City at Arthur Ashe Stadium.

Seating prices for Lower and Upper Promenade are as follows when purchased in pairs:

Evening matches starting at 7PM:
Thursday, Sept. 3
$21 (reg. $42) Upper Promenade, $27.50 (reg. $55) Lower Promenade
Tuesday, Sept. 8
$28 (reg. $56) Upper Promenade, $45 (reg. $90) Lower Promenade

Day matches starting at 11AM:
Tuesday, Sept. 8
$24 (reg. $48) Upper Promenade, $35 (reg. $70) Lower Promenade
Wednesday, Sept. 9
$24 (reg. $48) Upper Promenade, $35 (reg. $70) Lower Promenade
Thursday, Sept. 10
$24 (reg. $48) Upper Promenade, $35 (reg. $70) Lower Promenade
Friday, Sept. 11
$40 (reg. $80) Upper Promenade, $49 (reg. $98) Lower Promenade

To get in on this deal, visit Ticketmaster and click “Find Tickets” next to the desired session. Then enter the code: BZOO (make sure to use all capital letters) in the box marked “Promotions and Special Offers.” Use the pull-down menu to select the original price of the ticket and then click “Find Tickets” to see the discounted price. Tickets must be purchased on pairs.