What if you invested $1,000 in Delta Air Lines in 2015? (Inflation-Adjusted)

DAL · Industrial · Adjusted to 2026 dollars using BLS CPI-U data

Nominal returns can be misleading over long periods. $1,000 in Delta Air Lines in 2015 became $1,610 by 2026. Over those 11 years, cumulative CPI inflation reached 39% (BLS CPI-U). Restating the return in constant purchasing power, the real value of your gain in 2015 dollars is $1,158, a real annualized return of +1.3%.

Nominal final value

$1,610

+61.0% total return

Real value (2015 dollars)

$1,158

+15.8% real total return

Real annualized return

+1.3%

vs. +4.3% nominal annualized

Cumulative CPI-U inflation since 2015: 39% (1 dollar in 2015 = $1.39 in 2026)

Year-by-Year (Inflation-Adjusted)

$1,000 in Delta Air Lines since 2015, values in constant 2015 dollars

Year	Nominal Value	Real Value (2015 $)
2015	$1,000	$1,000
2016	$945	$932
2017	$1,025	$988
2018	$1,257	$1,176
2019	$1,122	$1,025
2020	$1,300	$1,169
2021	$891	$763
2022	$932	$731
2023	$918	$694
2024	$924	$678
2025	$1,605	$1,154
2026	$1,590	$1,144

Inflation adjustment uses BLS CPI-U annual data, deflated to 2026 dollars. Nominal stock data from Yahoo Finance (split-adjusted closing prices). Real values are expressed in constant 2015 purchasing-power dollars. For informational and educational purposes only. Not financial advice. Past performance does not guarantee future results. See our methodology and full disclaimer.