Norse Atlantic Airways offers a structured cancellation policy that varies based on fare type and timing of cancellation.

24-Hour Cancellation Policy
Passengers can cancel their booking within 24 hours of purchase for a full refund, provided the flight is booked at least seven days before departure. This applies to all fare types, including Economy Light, Economy Classic, Premium Light, Premium Classic, Economy Flextra, and Premium Flextra. However, if the first flight on the booking is within seven days of the booking date, this 24-hour cancellation policy does not apply.

Refundable Fares
Refundable fares allow passengers to cancel at any time before departure for a full refund to the original payment method. These fares offer the most flexibility and are ideal for travelers who may need to change their plans.

Non-Refundable Fares
For non-refundable fares, cancellations made within 24 hours of booking (with at least seven days before departure) are eligible for a full refund. After this period, the fare becomes non-refundable. However, passengers may be eligible for a refund of the taxes paid on the reservation, minus an administrative fee of $65 per passenger, per flight. These fees can range from $100 to $500, depending on factors like the fare type and route. The eCredit is generally valid for one year from the original ticket issue date.

Basic Economy Tickets
These are the most restrictive fare class. After the 24-hour risk-free period, Basic Economy tickets cannot be canceled or refunded. If you do not show up for the flight, the entire value of the ticket is forfeited.

SkyMiles Award Tickets
Domestic Award Tickets: If you cancel a domestic SkyMiles award ticket, you will receive a full refund of the miles used, provided the cancellation is made at least 72 hours before departure.

International Award Tickets: A flat fee of $150 applies for cancellations made at least 72 hours before departure. This fee is waived for SkyMiles Platinum or Diamond Medallion members.

It's important to note that if Delta cancels or significantly delays a flight, passengers are entitled to a refund, even for non-refundable tickets. Significant delays are defined as three hours or more for domestic flights and six hours or more for international flights.

To cancel a flight, you can visit Delta's website and navigate to the "My Trips" section, log in with your booking details, and follow the prompts to cancel. Alternatively, you can use the Fly Delta mobile app or contact Delta's customer service for assistance.

In summary, Delta's cancellation policy provides flexibility for refundable tickets and offers options for non-refundable tickets, albeit with some restrictions and fees. Basic Economy fares are the most limited in terms of cancellation and refund options. Always review the specific terms and conditions associated with your ticket type to understand your options fully.