Seasonality

DAL seasonality — Delta Air Lines

Over the last 11 years, DAL's strongest month on average has been November (+10.0%) and its weakest March (-6.2%).

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Average return by month

Month-by-month statistics

MonthAvgMedianUp %BestWorstYrs
Jan+1.02%-1.83%40%+19.0%-5.6%10
Feb+0.57%+0.01%50%+26.3%-17.2%10
Mar-6.24%-0.08%50%+13.2%-38.1%10
Apr+0.43%-1.44%40%+12.9%-9.2%10
May+4.11%+2.70%70%+21.3%-11.7%10
Jun+2.17%+5.51%60%+30.9%-30.5%10
Jul-1.02%-4.67%40%+9.8%-11.0%10
Aug+1.72%-1.76%40%+23.6%-10.8%10
Sep+0.01%-0.66%40%+19.5%-13.7%10
Oct+0.12%-1.88%50%+20.9%-15.5%10
Nov+10.03%+10.93%89%+31.4%-7.5%9
Dec+0.49%+2.07%60%+8.9%-17.8%10

Monthly returns heat map — DAL

price return, %
YearJanFebMarAprMayJunJulAugSepOctNovDecYear
2026 -5.1-0.31.22.321.313.6-6.6-10.87.0-4.08.8 +25.6%
2025 11.2-10.6-27.5-4.516.21.68.216.1-8.11.111.78.3 +14.7%
2024 -2.78.013.24.61.9-7.0-9.3-1.219.512.711.5-5.2 +50.4%
2023 19.0-1.9-8.9-1.85.930.9-2.7-7.3-13.7-15.518.28.9 +22.4%
2022 1.60.6-0.98.7-3.1-30.59.8-2.3-9.720.94.2-7.1 -15.9%
2021 -5.626.30.7-2.81.6-9.3-7.81.45.4-8.2-7.58.0 -2.8%
2020 -4.7-17.2-38.1-9.2-2.711.3-11.023.6-0.90.231.4-0.1 -31.2%
2019 -0.90.34.212.9-11.710.27.6-5.2-0.5-4.44.02.0 +17.2%
2018 1.4-5.11.7-4.73.5-8.39.87.5-1.1-5.410.9-17.8 -10.9%
2017 -4.05.7-8.0-1.18.19.4-8.2-4.42.23.85.85.8 +13.8%
2016 2.1