Best Online Ground Schools for the FAA Written Test

The best online ground school for most student pilots in 2026 is Pilot Institute, at $249 with lifetime access, a written test endorsement and a refund if you fail. King Schools explains concepts better than anyone and adds checkride prep for $349, Sporty’s has the slickest video and runs on almost every screen you own, and Gleim is the cheapest way to get endorsed at $159.95. All four cover the private pilot knowledge test and give you the sign-off you need to book it.

Prices, access and guarantees for the four courses

Course	Price (private pilot)	Access	Pass guarantee
Pilot Institute	$249	Lifetime	Refund plus $175 if you fail on the first try
King Schools	$349 (Complete), $599 (Deluxe Kit)	Lifetime	Money back if you fail within a year of purchase
Sporty’s Learn to Fly	$299 in the app, $499 Deluxe Kit	Lifetime updates	Covers written, oral and flight tests
Gleim	$159.95	12 months	Refund if you fail after graduating

Prices are list prices for the private pilot course in October 2026. Discount codes and seasonal sales come up regularly, so check the provider’s site before paying full price.

King Schools: the best explanations

John and Martha King have been teaching pilots on video for decades, and their style has aged well: short segments, plain analogies and lots of animated diagrams. The Complete Private Pilot Course at $349 bundles ground school with written test prep, checkride prep, a maneuvers course and an online library. The $599 Deluxe Kit adds 14 shorter courses on topics such as radio communications, risk management, and takeoffs and landings.

The endorsement works through the course itself. You complete every lesson, pass three practice exams at 70% or better, then print a certificate from the main menu and bring it to the testing center. Unlimited practice exams and a flashcard app come with every private course. If you fail the FAA test within a year of buying, King refunds you and you keep the course.

If concepts like density altitude or the left-turning tendencies have never clicked from a textbook, King is the course that fixes it.

Sporty’s Learn to Fly: polished video on any screen

Sporty’s Learn to Fly Course is filmed like a documentary, with in-cockpit footage and 4K animation. The current version has more than 15 hours of video, a test prep bank of over 1,000 FAA-style questions, a guide to 32 narrated maneuvers and a full training syllabus your instructor can follow. It plays in a browser, on iOS and Android, on a Mac and on smart TVs, which makes it easy to watch a lesson on the couch the night before a flight.

The course costs $299 through the Sporty’s Pilot Training app, and a $499 Deluxe Kit adds printed and physical training materials. Sporty’s guarantees you will pass all three tests: written, oral and flight. It also earns you FAA WINGS credit, and the “Ask a CFI” feature lets you send questions to an instructor.

The one weakness is depth on the hardest written test topics. The video moves fast, so plan extra time on the question bank for weight and balance, charts and weather products.

Gleim: the cheapest route to the endorsement

Gleim is built around the test. Its Online Ground School for private pilots costs $159.95 and runs on a study-then-quiz loop, lesson after lesson. Finish all the course requirements and you receive the test center authorization, which serves as your endorsement without a separate instructor review.

The catch is the clock: access lasts 12 months from purchase. An extension costs half the current price, but only if you buy it within 30 days of expiration. Gleim’s guarantee refunds the purchase if you complete the course, take the FAA test within 30 days of graduating and still fail on the first attempt.

The material reads more like a textbook than a show. For a disciplined student who wants to pass the FAA written test quickly and spend the savings on flight time, that is a feature.

Pilot Institute: the best value overall

Pilot Institute’s private pilot course costs $249, one time, with lifetime access. It includes about 35 hours of video split into more than 540 short lessons, over 800 practice questions, a 44-page illustrated study guide, a flashcard app and live office hours with a flight instructor. The Airplane Maneuvers Mastery course, sold separately at $149, is included at no cost.

The endorsement is free once you finish 100% of the course and score at least 80% on two timed practice exams. If you fail the FAA test on the first try, Pilot Institute refunds the course plus the $175 testing fee, on top of a 30-day money-back window.

I would buy this one first if I were starting over. It is the most complete package per dollar, and the short lessons fit a lunch break.

Finer Points, ASA and printed kits

King, Sporty’s, Gleim and Pilot Institute are the big online names, not the only ones. The Finer Points ground school app sells for $49 at pilot shops and suits students who like a single instructor talking through each topic. ASA and Jeppesen sell printed private pilot kits with textbooks and test prep, which some flight schools still hand out on day one. Check with your school before buying anything: if a syllabus or kit is already included in your training package, an online course becomes a supplement rather than a must.

How the knowledge test endorsement works

To sit for the private pilot knowledge test, you need a written endorsement showing you completed a home-study course or ground training. Each of the four schools above issues it once you meet its completion rules; a flight instructor can also review your work and sign it.

1. Create an FAA Tracking Number (FTN) in IACRA if you do not already have one.
2. Book the exam with PSI, the FAA’s testing contractor, and pay the $175 fee.
3. Bring a government photo ID and the printed endorsement on test day.
4. Answer 60 multiple-choice questions; 70% passes.
5. Keep the Airman Knowledge Test Report. It lists the knowledge areas you missed and remains good for 24 calendar months.

Your instructor reviews the missed areas before the checkride, and the examiner will look at that report during the oral. A score in the 90s gives you a stronger start in that conversation than a 72.

Picking the right ground school for how you learn

• You learn by understanding the why: King Schools.
• You watch content on a TV or tablet in the evening: Sporty’s.
• You want the lowest cost and can study on a deadline: Gleim.
• You want the most material and a guarantee for the least money: Pilot Institute.

Whichever you pick, start it before or alongside your first lessons rather than after. Students who show up knowing airspace, the basics of reading a METAR and the four forces fly better lessons, and that has a direct effect on the cost of flight training. Most of the material also carries over to apps like ForeFlight once you begin cross-country planning, so the hours spent on charts and weather pay twice.

If you are still deciding whether to become a pilot at all, a cheap course is also a low-risk way to find out whether the subject holds your interest before you spend money on a private pilot license. I’d pair it with a lesson or two in the airplane, because the material reads very differently once you have felt a stall warning for yourself.