Air Canada (TSX:AC) Shiller PE Ratio: (As of Sep. 12, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

TSX:AC Air Canada TSX:AC
84 GF Score
Price C$27.53
GF Value C$25.69
Valuation Fairly Valued
! 6 Warning Signs
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What is Air Canada Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Air Canada  (TSX:AC) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Air Canada Shiller PE Ratio Related Terms


Air Canada Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Air Canada's Shiller PE Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Air Canada Shiller PE Ratio Chart

Air Canada Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Air Canada Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

TSX:AC vs DAL, UAL, LUV: Shiller PE Ratio Comparison

For the Airlines subindustry, Air Canada's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Air Canada Shiller PE Ratio vs Transportation Industry

For the Transportation industry and Industrials sector, Air Canada's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Air Canada's Shiller PE Ratio falls into.


TSX:AC
84GF Score
Air Canada TSX:AC
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Air Canada Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Air Canada's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Air Canada's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=-0.63/133.5265*133.5265
=-0.630

Current CPI (Jun. 2026) = 133.5265.

Air Canada Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 2.740 101.765 3.595
201612 -0.630 101.449 -0.829
201703 -0.050 102.634 -0.065
201706 1.130 103.029 1.464
201709 6.220 103.345 8.037
201712 0.010 103.345 0.013
201803 -0.740 105.004 -0.941
201806 -0.370 105.557 -0.468
201809 2.550 105.636 3.223
201812 -1.320 105.399 -1.672
201903 1.260 106.979 1.573
201906 1.260 107.690 1.562
201909 2.350 107.611 2.916
201912 0.580 107.769 0.719
202003 -4.000 107.927 -4.949
202006 -6.440 108.401 -7.933
202009 -2.310 108.164 -2.852
202012 -3.890 108.559 -4.785
202103 -3.900 110.298 -4.721
202106 -3.310 111.720 -3.956
202109 -1.790 112.905 -2.117
202112 -1.350 113.774 -1.584
202203 -2.720 117.646 -3.087
202206 -1.600 120.806 -1.768
202209 -1.420 120.648 -1.572
202212 0.470 120.964 0.519
202303 -0.030 122.702 -0.033
202306 2.340 124.203 2.516
202309 3.080 125.230 3.284
202312 0.410 125.072 0.438
202403 -0.220 126.258 -0.233
202406 1.040 127.522 1.089
202409 5.380 127.285 5.644
202412 -1.790 127.364 -1.877
202503 -0.400 129.181 -0.413
202506 0.510 129.892 0.524
202509 0.880 130.287 0.902
202512 0.960 130.366 0.983
202603 0.160 132.262 0.162
202606 -0.630 133.527 -0.630

Add all the adjusted EPS together and divide 10 will get our E10.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Air Canada (TSX:AC) Overvalued in 2026?

Based on GuruFocus' analysis, Air Canada stock appears to be overvalued. The current stock price of C$27.53 is trading 7.2% above its estimated GF Value™ of C$25.69. GuruFocus considers Air Canada to be Fairly Valued.

Key valuation signals for TSX:AC:

  • Shiller PE Ratio:
  • GF Value™: C$25.69 vs. price of C$27.53 (7.2% above fair value)
  • GF Score™: 84/100 with 6 warning signs

No single metric tells the full story. See the TSX:AC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Air Canada Business Description

Address 7373 Cote Vertu Boulevard West, Air Canada Centre, Saint-Laurent, Montreal, QC, CAN, H4S 1Z3
Air Canada is Canada's largest airline, serving nearly 50 million passengers each year, together with its low-cost subbrand, Rouge, and contracts for regional connection flights into its network. Air Canada is a sixth-freedom airline, which flies many passengers on long-haul trips to and from the US with a layover in Canada.
84GF Score

Get the complete analysis for TSX:AC

Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

C$27.53
Price
C$25.69
GF Value