Yes, direct cremation is the cheapest funeral service today, even cheaper than other types of cremation such as traditional funeral service cremation or cremation with a memorial service afterwards.
The reason is that with direct cremation there are no additional services (wake, flowers, ceremony, etc).
Direct cremation is the cheapest option when dealing with the death of a loved one. A cremation can cost between 30% and 50% less than a traditional funeral with burial, which is why more and more families - with tight budgets - choose this option.