Fixed vs Variable Rate Aircraft Loans: How Operators Should Choose
A fixed rate keeps your aircraft loan payment the same for the fixed period, while a variable (floating) rate moves with a benchmark such as SOFR, so your payment can rise or fall. Fixed suits operators whose revenue is steady and who need predictable debt service. Floating can start lower and works when you can absorb higher payments or plan to exit early, but early exit from either structure can carry prepayment or breakage costs, so read those terms before you choose.
Key takeaways
- A fixed rate stays the same for the fixed period; a floating rate moves with a benchmark such as SOFR, according to aviation finance attorney David Mayer.
- Floating rates are typically quoted as a margin over a benchmark, so compare the margin and reset terms, not only the starting rate.
- Swaps can convert a floating loan to a fixed one (or the reverse), but unwinding a swap early can trigger breakage fees.
- Many turbine loans use a 15-year amortization with a 5-year term, so the rate you choose also decides how you handle the balloon and a possible refinance.
- Stress test your payment at a rate well above today's before you accept a floating structure.
What is the difference between a fixed and a variable rate aircraft loan?
A fixed rate stays the same for the fixed period of the loan, so your principal and interest payment is known in advance. A variable, or floating, rate moves with market rates. David Mayer, an aviation finance attorney writing in AIN, puts it simply: a floating rate moves up or down as market interest rates change, based on the applicable benchmark index.
The benchmark most often named today is the Secured Overnight Financing Rate. The Federal Reserve Bank of New York describes SOFR as a broad measure of the cost of borrowing cash overnight, backed by Treasury securities. A floating aircraft loan is usually priced as a margin over a benchmark like this, so when the benchmark moves, your rate moves with it.
Both structures sit inside the wider set of terms covered in airplane loan terms explained: amortization, term, balloon, prepayment and collateral rules. Rate type is one lever among several, and it interacts with the others.
How do lenders offer fixed and floating rates on aircraft?
Lenders in the specialty market commonly offer both. AOPA Aviation Finance lists credit-based and asset-based loans with fixed rates, floating rates and hybrids on its turbine and turboprop program page. It does not publish rate levels or definitions for those structures there, so ask each lender how a hybrid works, including when it resets and what it resets to.
Published lender starting rates are on the aircraft loan rates page, each with its source and date. Treat those as starting points for strong borrowers, not as your quote. The pillar guide to airplane financing explains how credit, aircraft age and down payment move the number.
Two practical points apply to both structures:
- Rate locks are not guaranteed. AOPA Aviation Finance's then-president wrote in late 2022 that lenders facing a higher cost of money were reluctant to extend rate locks, and advised borrowers to make sure they could accept the rate as the one they would pay for the life of the loan.
- The term may be shorter than the amortization. AOPA Aviation Finance states that standard turbine terms are a 15-year amortization with a 5-year term. At the end of the term, the remaining balance is due or must be refinanced at whatever rates exist then. See balloon payments on aircraft loans.
Fixed vs floating: how do they compare?
Fixed trades a possibly higher starting rate for certainty. Floating trades certainty for a possibly lower starting rate and upside if rates fall. The table summarizes the trade-offs described by the sources above.
| Factor | Fixed rate | Floating rate |
|---|---|---|
| Payment predictability | Known for the fixed period | Can rise or fall at each reset |
| Benefit if market rates fall | None unless you refinance or swap | Payment can fall automatically |
| Risk if market rates rise | Protected for the fixed period | Payment can rise, which can strain cash flow |
| Early exit costs | Possible loan prepayment fee | Check the loan documents; a swap adds breakage risk |
| Best fit | Steady revenue, tight margins, long hold | Cash reserves, shorter hold, or a bridge period |
Mayer notes that in early 2024, with an inverted yield curve, banks were offering lower fixed rates than variable rates. That is a market condition, not a rule. The relationship between fixed and floating pricing changes over time, so ask for both quotes on the same day and the same assumptions.
What are swaps and breakage fees on an aircraft loan?
A swap is an agreement to exchange interest rate streams, so a borrower with a variable-rate loan can effectively pay a fixed rate, or the reverse. Mayer explains that swapping from variable to fixed removes exposure to interest rate volatility and helps with payment planning, and that swaps may produce a lower fixed rate than the customary fixed-rate loan. He also says that, structured correctly, a swap can manage the rate on a bridge loan from delivery date onward.
The cost shows up on the way out. Mayer warns that unwinding a swap early can trigger breakage fees, and that a fixed-rate loan ending before its penalty period expires may carry a loan prepayment fee. If there is any chance you will sell the aircraft, upgrade or refinance within a few years, the exit cost belongs in your comparison, not in the fine print you read after closing.
Collateral true-ups matter too. Mayer notes that some lenders can demand prepayment of part of the principal to maintain a set loan-to-value ratio, and recommends negotiating limits on the amount and timing. That risk is separate from rate type but affects your cash planning either way.
What does a rate increase do to the payment? A hypothetical example
The numbers below are hypothetical and for illustration only. They are not quotes, and no lender has offered these rates. Use the airplane loan calculator to model your own figures.
In this example, the floating loan saves about $111 a month for two years, roughly $2,600 in total. If the rate then rises two points, the payment is about $292 a month higher than the fixed loan for the remaining 13 years, unless rates fall again. The point is not that one option wins. It is that a floating loan is a bet on the path of rates, and the downside should be survivable.
The reset calculation re-amortizes the balance over the remaining 156 months. Some loans adjust differently, for example by changing the term rather than the payment, so confirm how your lender handles resets.
How should an operator choose between fixed and floating?
Choose based on how well your operation absorbs payment changes, how long you will hold the aircraft, and what exit costs you can accept. A short checklist:
- Stress test the payment. Model your loan at one to three points above the starting rate. If that payment breaks your breakeven, favor fixed or a swap.
- Match the rate to the revenue. Flight schools with seasonal cash flow and charter operators with variable utilization often need a payment that does not move. A fixed contract-backed revenue stream can support more rate risk.
- Know your holding period. Planning to sell or refinance in three years? Compare prepayment and breakage costs against the rate savings.
- Ask for the full schedule. Get the margin, benchmark, reset frequency, any floor or cap, the prepayment schedule and swap termination terms in writing.
- Plan the term end. If the term is shorter than the amortization, decide now how you will handle the balloon. AOPA Aviation Finance cautioned in 2022 against assuming a quick refinance, and our guide to when aircraft refinancing makes sense covers the math. Also see the refinancing structure page.
Tax and legal terms of any swap or guarantee should be reviewed with a tax advisor and aviation counsel. This article is general information, not advice for your situation.
What should you do before you commit to a rate type?
Request written quotes for both fixed and floating on identical assumptions: loan amount, down payment, term and amortization. Then compare total cost under a rising-rate scenario and under a flat-rate scenario, along with the exit costs for each. If you want help organizing the numbers for lenders, you can start a deal file with JetFinex and keep your quote comparison in one place.
Aircraft Loan Calculator
Monthly payment, total interest and balloon, with a balance chart.
Frequently asked questions
Is a fixed or variable rate better for an aircraft loan?
Neither is better in every case. Fixed gives payment certainty, which matters most for operators with thin margins or fixed revenue. Floating can cost less at the start and when rates fall, but it exposes you to rising payments.
What is SOFR and why does it matter for aircraft loans?
The Federal Reserve Bank of New York describes SOFR as a broad measure of the cost of borrowing cash overnight, backed by Treasury securities. Floating-rate aircraft loans are commonly priced as a margin over a benchmark like SOFR, so the loan's rate moves when the benchmark moves.
Can I switch an aircraft loan from floating to fixed?
Sometimes. Aviation attorney David Mayer describes interest rate swaps that convert a variable-rate loan to a fixed rate, at closing or later. Ask the lender whether a swap is available and what breakage fees apply if you unwind it.
Do fixed rate aircraft loans have prepayment penalties?
They can. Mayer notes that a fixed-rate loan that ends before its penalty period expires may carry a loan prepayment fee. Ask for the exact schedule in writing.
What are hybrid rate aircraft loans?
AOPA Aviation Finance lists fixed rates, floating rates and hybrids among the structures its lenders offer. A hybrid generally combines the two, for example a fixed period followed by a reset. Confirm the exact reset terms with the lender.
Sources
- David G. Mayer, AIN, AINsight: Strategies to manage aircraft financing costs
- David G. Mayer, Business Jet Traveler, How to manage aircraft financing costs
- Federal Reserve Bank of New York, Secured Overnight Financing Rate
- AOPA Aviation Finance, Turbine and turboprop financing
- AOPA, Turbine finance: interest rates are up
- Federal Reserve, H.15 Selected Interest Rates
This guide is educational and is not tax, legal or investment advice. See our editorial standards and disclosures. Spot an error? Tell us.
