Going to an online college became popular because of the flexibility it offers students. Another of its top perks is that it is more affordable than traditional college or university.

Two of the most common excuses that cause students not to complete their college education is the lack of time and resources. An online degree program is inexpensive since students do not need to pay for room and board as compared to when they enroll in a traditional college or university. Usually, online students just have to pay for tuition and books.

BestColleges.com shared a list of the most affordable online colleges in the nation. The publication used a "College Affordability Score" to rank the institutions.

Arizona State University

The school gives out of state students the same rate as state students in terms of tuition fees. It has a score of 75.63 and a graduation rate of 63.43 percent. It has several online undergraduate degrees ranging from art history and anthropology to urban planning.

The Baptist College of Florida

Prides itsef of having a score of 77.35. It offers traditional degrees to its online students for courses on English, History and Psychology as well as Christian-focused majors.

North Dakota State University

NDSU has 11.4 percent less tuition on average compared to other state schools. It has a score of 77.58 and offers three online bachelor's degrees: human development & family science, sociology, university studies and strategic communications.

Towson University

This University allows students to earn a bachelor's degree in allied health. It was intended as a transfer program for associate degree holders. It has a score of 77.88 and is part of the University System of Maryland.

Minot State University

Minot State U is the third-largest institution in the state. It offers 10 undergraduate degrees online which includes general studies, marketing and nursing. Online students also get to have full access to the school's "E Tutoring" service, which provides personalized assistance with their writing assignments through email.