Airline strictness: how many bags each carry-on limit allows

The share of the 1937 bags in the catalog that fit each airline's size limits, strictest first. Air India takes 56% of them as a cabin bag; Singapore Airlines takes 88%.

• Fit as a cabin bag
• Fit under the seat

1. Air India55×40×20cm, ≤ 115cm total21.5×15.5×8in, ≤ 45.3in total
   56% · no seat size
2. Air Arabia55×40×20cm21.5×15.5×8in · seat 33×25×20cm13×10×8in
   56% · 6%
3. Ryanair55×40×20cm21.5×15.5×8in · seat 40×30×20cm15.5×12×8in
   56% · 13%
4. Vueling55×40×20cm21.5×15.5×8in · seat 40×30×20cm15.5×12×8in
   56% · 13%
5. Qatar Airways50×37×25cm19.5×14.5×10in
   58% · no seat size
6. Emirates55×38×22cm21.5×15×8.5in
   63% · no seat size
7. United Airlines56×35×23cm22×14×9in · seat 43×25×22cm17×10×8.5in
   68% · 10%
8. Avianca55×35×25cm21.5×14×10in
   70% · no seat size
9. Gol Linhas Aereas55×35×25cm21.5×14×10in
   70% · no seat size
10. IndiGo55×35×25cm, ≤ 115cm total21.5×14×10in, ≤ 45.3in total
    70% · no seat size
11. Air France55×35×25cm21.5×14×10in · seat 40×30×15cm15.5×12×6in
    70% · 11%
12. KLM55×35×25cm21.5×14×10in · seat 40×30×15cm15.5×12×6in
    70% · 11%
13. LATAM Airlines55×35×25cm21.5×14×10in · seat 45×35×20cm17.5×14×8in
    70% · 29%
14. Alaska Airlines56×36×23cm22×14×9in
    71% · no seat size
15. Delta Air Lines56×36×23cm22×14×9in
    71% · no seat size
16. Qantas56×36×23cm22×14×9in
    71% · no seat size
17. Vietjet Air56×36×23cm22×14×9in · seat 30×20×10cm12×8×4in
    71% · 3%
18. Cebu Pacific56×36×23cm22×14×9in · seat 35×20×20cm14×8×8in
    71% · 5%
19. AirAsia56×36×23cm22×14×9in · seat 40×30×10cm15.5×12×4in
    71% · 7%
20. Lufthansa55×40×23cm21.5×15.5×9in · seat 40×30×15cm15.5×12×6in
    71% · 11%
21. SAS55×40×23cm21.5×15.5×9in · seat 40×30×15cm15.5×12×6in
    71% · 11%
22. Turkish Airlines55×40×23cm21.5×15.5×9in · seat 40×30×15cm15.5×12×6in
    71% · 11%
23. Norwegian Air Shuttle55×40×23cm21.5×15.5×9in · seat 40×30×20cm15.5×12×8in
    71% · 13%
24. WestJet56×36×23cm22×14×9in · seat 41×33×15cm16×13×6in
    71% · 13%
25. Wizz Air55×40×23cm21.5×15.5×9in · seat 40×30×20cm15.5×12×8in
    71% · 13%
26. Air Canada55×40×23cm21.5×15.5×9in · seat 43×33×16cm17×13×6.5in
    71% · 17%
27. JetBlue Airways56×36×23cm22×14×9in · seat 43×33×20cm17×13×8in
    71% · 21%
28. American Airlines56×36×23cm22×14×9in · seat 45×35×20cm17.5×14×8in
    71% · 29%
29. ANA (All Nippon Airways)55×40×25cm, ≤ 115cm total21.5×15.5×10in, ≤ 45.3in total · seat 40×30×20cm15.5×12×8in
    76% · 13%
30. Allegiant Air55×40×25cm21.5×15.5×10in · seat 45×35×20cm17.5×14×8in
    76% · 29%
31. Volaris55×40×25cm21.5×15.5×10in · seat 45×35×20cm17.5×14×8in
    76% · 29%
32. British Airways56×45×25cm22×17.5×10in · seat 45×36×20cm17.5×14×8in
    81% · 30%
33. easyJet56×45×25cm22×17.5×10in · seat 45×36×20cm17.5×14×8in
    81% · 30%
34. Southwest Airlines61×41×25cm24×16×10in
    85% · no seat size
35. Frontier Airlines61×41×25cm24×16×10in · seat 46×36×20cm18×14×8in
    85% · 35%
36. Singapore Airlines≤ 115cm total≤ 45.3in total · seat 40×30×10cm15.5×12×4in
    88% · 7%

Every bag in the catalog, compared by its listed dimensions in any orientation. Weight limits are not counted here; they are on each airline's page. Check your own bag.