KLM Service Centre USA
Telephone number: 1-866-434-0320
Opening hours:
7 days a week 08:00 am – 7.30 pm(EST)
Note:
Outside these opening hours, you can contact Delta/KLM reservations at 1-800-221-1212.
KLM Telephone Reservations
For making a reservation by phone or if you want to change or cancel an existing reservation.
Telephone number: 1-800-221-1212
Flying Blue Service Centre
For all your questions or requests concerning KLM Northwest Airlines’s frequent flyer programme, Flying Blue, you can reach KLM Northwest Airlines at the telephone number.
Telephone number:
1-800-375-8723
1-519-772-3570 (From abroad)
Address:
235 King Street East,
Kitchener, ON, N2G 4N5
