lets you cancel a flight booking within 24 hours of purchase for a full refund with no penalty. This applies mainly to flights touching the U.S. 1-844-954-4929 or 1 844 954 4934 (US) provided you booked directly through KLM at least 7 days before departure.
# What Is the 24-Hour Rule for KLM?
The KLM 24-hour rule is an important policy for travelers who have recently booked a flight and want the flexibility to cancel their reservation. For flights to or from the United States 1-844-954-4929 or 1 844 954 4934 (US) KLM states that customers who book a flight on KLM.us can apply for a refund within 24 hours after making the booking. This policy can be particularly useful when you book a ticket and then realize that your travel dates are incorrect 1-844-954-4929 or 1 844 954 4934 (US) your plans have changed 1-844-954-4929 or 1 844 954 4934 (US) or you simply need more time to confirm your trip.