how people can get big discounts on delta airlines?

Basic Economy ( booking class) is a low-cost choice for budget-conscious passengers. When you book Basic Economy, you will normally receive our cheapest rate; but, seats will be assigned after check-in, and you will not be able to cancel or cancel your ticket once the Risk-Free Cancellation period has expired.

Everything you want to know about how do i get huge discounts on delta airlines flights ?  is mentioned below:

You can pick between two sorts of fares: Refundable and Non-refundable.

• Refundable fares give you the most freedom, and the majority of them don't require advance purchase.
• Non-refundable prices are the most cost-effective option, but they come with more restrictions. 
DISCOUNTS AND SPECIAL OFFERS. Features of a Basic Economy Fare

In addition, regardless of Medallion or another elite status, you will not be eligible for: paid or gratuitous upgrades; paid, complimentary, or discounted Delta Comfort plus paid or complimentary Preferred Seats or same-day confirmed or same-day standby travel modifications. 

Seats can be chosen in advance.

Basic Economy tickets do not allow for advance seat selection. Basic Economy ticket holders will have their seat allocations issued to them no later than check-in.

Fares for Children

Within the United States, Delta does not provide discounted infant or kid rates. Learn more about the requirements for kid ticketing.

Discounts are not available on Delta.com.

Certain discounts or companion tickets may be available on a certain route, but they are not available on delta.com. 

• Bereavement is a difficult experience.
• Adoption costs in other countries.
• Military and government fares are available.
• Senior discounts are offered (available in certain markets).
SUGGESTIONS FOR FINDING CHEAP FARES
• Make your plans as far ahead as possible. The earlier you book, the higher your chances of getting a lesser fare. Fares are normally only available if purchased in advance.
• Experiment with different days and times. Demand-driven fares can change from day today. Tuesdays, Wednesdays, and Saturdays have the lowest fares, while Fridays and Sundays have the highest. Flights later in the evening are typically less popular.

  Look for airports in the area. Low-cost flights that have sold out at one airport may be available at a neighboring airport.