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Transport Operators Educational Guide

EBITDAR and Airline Leverage

By Selborne Research ·

Why EBITDAR replaces EBITDA for lease-heavy airlines; adjusted net debt including operating leases; FY2025 leverage anchors for DAL, UAL and AAL.

Educational analysis for professional use. This guide is not investment advice or a recommendation to buy or sell any security, and it is not personalised.

Leases Break EBITDA; EBITDAR Fixes the Pairing

For an airline that rents much of its fleet, EBITDA is the wrong earnings figure to set against debt. Under the US lease standard (ASC 842), operating lease rent stays in operating expenses while the lease liability sits on the balance sheet. Put those leases into adjusted net debt and enterprise value, and plain EBITDA counts the rent twice: as debt, and as a cost already deducted.

EBITDAR adds depreciation, amortisation and the fixed portion of operating lease expense back to operating income; Delta defines it in Note A of its FY2025 earnings release (8-K EX-99.1). Whenever leases are in the debt, EBITDAR goes in the ratio.

International Airlines Group (IAG, owner of British Airways and Iberia) and Ryanair report under IFRS 16, the international lease standard, which removes the rent line. Leases become right-of-use assets and lease liabilities, and their cost appears as depreciation and interest, both below EBITDA. Reported EBITDA is therefore already struck before lease costs.

Adjusted Net Debt: Read the Reconciliation

Balance-sheet debt alone understates what an airline owes. Filers’ adjusted net debt tables typically add finance leases, operating lease liabilities and sometimes pensions, less cash. Figures are at FY2025 year end (31 December; Ryanair 31 March 2025).

CarrierAdjusted / net debt (FY2025)Leverage metric filed
Delta$14.3B adj. net debt2.4× gross adj. debt to EBITDAR; 2026 guidance ~2×, long-term 1×
United$19.9B adj. net debt2.2× net FY2025; 2.0× TTM Mar 2026; target <2.0×
American$30.7B net debt (incl. operating leases and pension)No leverage-ratio target; total debt $36.5B, guided below $35B in 2026
Southwest~$2.75B adj. net debt (adjusted debt $5,981m less cash)2.4× gross adjusted debt to adjusted EBITDAR
IAG€5,948m net debt (incl. €6,995m IFRS 16 lease liabilities)0.8× net debt to EBITDA; target <1.8×
RyanairNet cash €1.30BNo net debt to measure

Read each ratio against the company’s own target and definition. Delta’s gross ratio ended FY2025 above its 2026 guidance. United’s net ratio fell to 2.0× in the twelve months to March 2026 (TTM), against a target below 2.0×. Gross and net differ: Southwest’s filed 2.4× is gross, and net of cash its adjusted debt is about 1.1× EBITDAR. American, with −$83M of FY2025 company-defined FCF, gives only total-debt guidance.

EV/EBITDAR Valuation Band

Because fuel and the cycle swing trading multiples, the band is set on normalised EBITDAR: earnings in a mid-cycle year. We hold ~4–7× EV/EBITDAR, with a 5.5× model anchor. That band is a house convention; no filing publishes an industry multiple.

On leverage, the house convention reads adjusted net debt ÷ EBITDAR below 2.0× as low, 2.0–3.0× as mid-range and above 3.0× as high for a US network carrier.

Mismatch the pair and both numbers go wrong: EBITDA against a lease-capitalised EV overstates the multiple, and net debt without leases understates leverage.

Worked Mini-Example: Leverage at 2.0× EBITDAR

An illustrative carrier with adjusted net debt at 2.0× EBITDAR:

StepInputResult
Assume normalised EBITDARn/a$8.0B
Implied adj. net debt at 2.0×2.0 × $8.0B$16.0B
Add market cap (illustrative)n/a$20.0B
Enterprise valuen/a$36.0B
EV/EBITDAR$36.0B ÷ $8.0B4.5×

4.5× sits inside the ~4–7× screening band. Move fuel or normalised EBITDAR and both the leverage and the multiple shift, so the primer reads leverage alongside free cash flow, which decides how fast debt falls, rather than one year’s EBITDAR.

IAG: Label the Metric Before You Compare

IAG’s FY2025 net leverage of 0.8× is net debt ÷ EBITDA before exceptional items. Its borrowings include €6,995m of lease liabilities and its EBITDA sits above lease depreciation and interest, so the ratio already includes leases. It still differs from US ratios, which add back only the fixed portion of operating lease expense, and some of which (United, American) put pensions in adjusted debt.

IAG also states a gross leverage ambition of 1.5–2.0×, tied to its unencumbered-fleet strategy: aircraft owned outright, with no loan secured against them. FY2025 gross leverage was 1.9× (gross debt €14,267m ÷ EBITDA €7,652m, in euros). Like for like means gross against gross, so IAG’s 1.9× sits beside Delta’s 2.4×, marked as an IFRS figure.

What Load Factor Has to Do With Leverage

A full plane does not guarantee a manageable balance sheet. Load factor, the share of seats sold, measures how full an airline flies, and it reaches the balance sheet only through cash. If capacity growth outruns FCF, or unit economics are poor, net debt stays high even when planes are 84% full.

Airlines Sector Primer

EBITDAR builds from a thin unit margin on seat miles, the leases are capitalised into net debt, and the value moves on what a small load-factor drop costs.

41 pages
15 sections, unit economics to lease-adjusted EV/EBITDAR and the downturn
2 worked examples
a premium network carrier and a low-cost carrier
6-company screen
US and European carriers on filed unit revenue, unit cost and leverage

The Excel model is the primer's airline build live across 11 sheets: EBITDAR from seat miles and unit margin, leases capitalised into adjusted net debt, a through-cycle EV/EBITDAR valuation for a network carrier and a low-cost carrier, a load-factor downturn, a lease-adjusted leverage screen and a sensitivity grid. Change the unit revenue, fuel or leases and the value moves.

See what's in the Airlines Sector Primer → £25 PDF, £59 with the Excel model, or £159 for the full Transport Operators library

Frequently Asked Questions

Why do airline analysts use EBITDAR instead of EBITDA?
Under US GAAP (ASC 842), operating lease rent stays in operating expenses while the lease liability goes on the balance sheet. If adjusted debt includes those lease liabilities, the earnings measure must add back the fixed portion of lease expense (EBITDAR). Using plain EBITDA while capitalising leases in EV counts the rent twice: once as debt, once as a cost. Under IFRS 16 the rent is replaced by depreciation and interest, so an IFRS filer's EBITDA is already struck before lease costs.
What is a normal EV/EBITDAR multiple for airlines?
We screen at roughly 4–7× EV/EBITDAR on normalised earnings, with a 5.5× model anchor. That is a house convention, not an industry table; trailing multiples swing with fuel and the cycle.
What leverage ratio do US network airlines target?
Delta guides gross adjusted debt to EBITDAR to about 2× for 2026 and 1× long term (filed 2.4× FY2025). United targets below 2.0× net (filed 2.2× FY2025; 2.0× TTM Mar 2026). Southwest filed 2.4× adjusted debt to adjusted EBITDAR at FY2025. American publishes debt-level guidance but no leverage-ratio target.
How does IAG report leverage differently from US carriers?
IAG reports net leverage of 0.8× at FY2025 (net debt €5,948m ÷ EBITDA before exceptional items €7,652m), with a medium-term target below 1.8×. It reports under IFRS 16, so its debt includes €6,995m of lease liabilities and its EBITDA is struck before lease costs: the ratio already includes leases, close in concept to a US adjusted-debt-to-EBITDAR ratio but built on different definitions. IAG also states a gross leverage ambition of 1.5–2.0× (FY2025 actual gross 1.9×).