Prediction of Skytrax airline rankings, short formula (2e) - 2010

[PEREZGONZALEZ Jose D (2010). Prediction of Skytrax airline rankings, short formula (2e)3. Journal of Knowledge Advancement & Integration (ISSN 1177-4576), 2012, pages 222-227.] [Printer friendly]

Prediction of airline rankings

Perezgonzalez and Gilbey (20102) obtained a regression formula for predicting Skytrax's 2010 airline rankings from customer reviews. The research behind the study attempted to predict Skytrax Global Airline Ranking4 from average ratings that passengers had given to those airlines, independently, on Skytrax's website. The regression formula was based on a single variable (the average 'Customer review scoring').

The short regression formula for predicting Skytrax's 2010 ranking was:

Predicted Skytrax Ranking = 1.675 + (0.291 * Customer review scoring)
(F = 87.302, p < 0.01; R = 0.688; R2 = 0.473; Adj.R = 0.684; Adj.R2 = 0.468)

Table 1 shows the actual ranking given by Skytrax, the predicted 'ranking' obtained from above formula, as well as the customer average rating used as predictor. Overall, 69% of the research airlines could be ranked in approximately the same hierarchy than the one provided by Skytrax. Furthermore, it may be possible to also rank correctly 68% of the remaining airlines not ranked by Skytrax (adj.R).

Although an accuracy of 68%-69% is probably too low for dependable predictions (after all, the ranking of 1/3 of the airlines will not be predicted well), these results suggest the possibility of using customer reviews as proxies for estimating the quality of those airlines not "officially" ranked by Skytrax.

Table 1. Predicted and actual scores
Airline Customer Customer (adj) Predicted Skytrax
Asiana Airlines 9.00 4.60 4.29 5.00
Qatar Airways 8.80 4.52 4.24 5.00
Hainan Airlines 8.60 4.44 4.18 4.00
Bangkok Airways 8.50 4.40 4.15 4.00
Aegean Airlines 8.50 4.40 4.15 3.00
Kingfisher Airlines 8.40 4.36 4.12 5.00
Qantas Airways 8.40 4.36 4.12 4.00
Singapore Airlines 8.20 4.28 4.06 5.00
Southwest Airlines 8.20 4.28 4.06 3.00
Garuda Indonesia 8.10 4.24 4.03 4.00
Porter Airlines 8.00 4.20 4.00 4.00
Silk Air 8.00 4.20 4.00 4.00
Air New Zealand 7.70 4.08 3.92 4.00
ANA 7.60 4.04 3.89 4.00
Virgin Blue 7.60 4.04 3.89 4.00
CityJet 7.60 4.04 3.89 3.00
JetBlue Airways 7.50 4.00 3.86 4.00
TACA International 7.50 4.00 3.86 3.00
Thai Airways 7.30 3.92 3.80 4.00
Malaysia Airlines 7.20 3.88 3.77 5.00
Dragonair 7.20 3.88 3.77 4.00
Air Berlin 7.00 3.80 3.71 4.00
British Airways 6.90 3.76 3.68 4.00
China Airlines 6.90 3.76 3.68 4.00
Aer Lingus 6.90 3.76 3.68 3.00
Oman Air 6.90 3.76 3.68 3.00
Cathay Pacific 6.80 3.72 3.65 5.00
EVA Air 6.80 3.72 3.65 4.00
Austrian Airlines 6.70 3.68 3.62 4.00
LAN Airlines 6.70 3.68 3.62 3.00
Lufthansa 6.60 3.64 3.60 4.00
Air France 6.50 3.60 3.57 4.00
Japan Airlines 6.50 3.60 3.57 4.00
South African Airways 6.50 3.60 3.57 4.00
Swiss Int'l Air Lines 6.50 3.60 3.57 4.00
Alaska Airlines 6.50 3.60 3.57 3.00
Avianca 6.50 3.60 3.57 3.00
Thomson Airways 6.50 3.60 3.57 3.00
Philipines Airlines 6.40 3.56 3.54 3.00
bmi British Midland 6.30 3.52 3.51 3.00
Turkish Airlines 6.20 3.48 3.48 4.00
Korean Air 6.10 3.44 3.45 4.00
Royal Brunei Airlines 6.10 3.44 3.45 3.00
Air Asia 6.00 3.40 3.42 3.00
Air Asia X 6.00 3.40 3.42 3.00
Malev Hungarian Airlines 6.00 3.40 3.42 3.00
Frontier Airlines 5.90 3.36 3.39 3.00
Onur Air 5.80 3.32 3.36 2.00
Finnair 5.70 3.28 3.33 4.00
Air Canada 5.70 3.28 3.33 3.00
Etihad Airways 5.60 3.24 3.30 4.00
Brussels Airlines 5.50 3.20 3.28 3.00
Icelandair 5.50 3.20 3.28 3.00
LOT Polish Airlines 5.50 3.20 3.28 3.00
Vietnam Airlines 5.50 3.20 3.28 3.00
KLM 5.40 3.16 3.25 3.00
Jet Airways 5.20 3.08 3.19 3.00
Royal Jordanian Airlines 5.20 3.08 3.19 3.00
SriLankan Airlines 5.20 3.08 3.19 3.00
Virgin Atlantic 5.10 3.04 3.16 4.00
Continental Airlines 5.10 3.04 3.16 3.00
CSA Czech Airlines 5.10 3.04 3.16 3.00
SAS Scandinavian Airlines 5.10 3.04 3.16 3.00
TAP Air Portugal 5.00 3.00 3.13 3.00
Aeroflot 4.90 2.96 3.10 3.00
Pegasus Airlines 4.80 2.92 3.07 2.00
Emirates Airlines 4.70 2.88 3.04 4.00
El Al Israel Airlines 4.70 2.88 3.04 3.00
Air India 4.60 2.84 3.01 3.00
China Southern Airlines 4.60 2.84 3.01 3.00
Meridiana 4.60 2.84 3.01 3.00
United Airlines 4.60 2.84 3.01 3.00
Air China 4.50 2.80 2.98 3.00
Air Mauritius 4.50 2.80 2.98 3.00
Spanair 4.50 2.80 2.98 3.00
TAM Airlines 4.50 2.80 2.98 3.00
Egyptair 4.40 2.76 2.96 3.00
Delta Airlines 4.10 2.64 2.87 3.00
Tiger Airways 4.10 2.64 2.87 3.00
Ethiopian Airlines 4.00 2.60 2.84 3.00
Gulf Air 4.00 2.60 2.84 3.00
Iberia 4.00 2.60 2.84 3.00
Kuwait Airways 4.00 2.60 2.84 3.00
Alitalia 3.90 2.56 2.81 3.00
flyBe 3.90 2.56 2.81 3.00
Saudi Arabian Airlines 3.90 2.56 2.81 3.00
Spirit Airlines 3.90 2.56 2.81 3.00
American Airlines 3.80 2.52 2.78 3.00
China Eastern Airlines 3.80 2.52 2.78 3.00
Kenya Airways 3.80 2.52 2.78 3.00
Aerolineas Argentinas 3.70 2.48 2.75 3.00
Air Europa 3.60 2.44 2.72 3.00
Cubana Airlines 3.60 2.44 2.72 2.00
Aerosvit Airlines 3.50 2.40 2.69 2.00
US Airways 3.40 2.36 2.66 3.00
Air Seychelles 3.20 2.28 2.61 3.00
EasyJet 3.10 2.24 2.58 3.00
Ryanair 2.00 1.80 2.26 2.00
Royal Air Maroc 1.90 1.76 2.23 2.00
(The 'Customer (adj)' column shows customer scores on a 1-5 scale in order to facilitate comparisons)

Author

Jose D PEREZGONZALEZ (2011). Massey University, Turitea Campus, Private Bag 11-222, Palmerston North 4442, New Zealand. ().

Peer-reviewers

Nicholas ASHLEY (2012). School of Aviation, Massey University, New Zealand ().

Want to know more?

Skytrax's website
Skytrax offers the latest rankings for airports and airlines, as well as independent reviews of those by passengers.
Wiki of Science - Prediction of Skytrax 2011 airline rankings
This Wiki of Science page describes a similar research done in 2011.
Wiki of Science - Prediction of Skytrax airport rankings
Wiki of Science offers access to both 2010's and 2011's predictions for airports.

 Other interesting sites
page revision: 21, last edited: 01 Aug 2012 21:40