We travelled to Lyon for the Euros and this doesnt sound right and if i remember correctly we definitely did not pay 80 euro + for 2 people into the city centre.
Also note, there is like 1 very small bar at this stadium, i suggest get a carry out in the city centre. The ground is in the middle of nowhere and you need to get a tram to get there.
edit* just found this online.
Rhonexpress: the direct Shuttle service from the airport to the city center
The Rhônexpress is tram shuttle service that goes between Lyon-Saint Exupéry airport and Lyon’s Part-Dieu train station. The tram stop can be found in the St Exupery train station.
The shuttle runs every 15 minutes, and will take around 30 minutes.
Full-price tickets cost €16.10/€27.80, with cheaper rates if you buy online or are under 25.
Children under 12 travel free.
Tickets can be purchased online, from machines at the airport/tram stops or from the on-board conductor (€4 fee). The machines and conductor accept all major bank cards and cash (euros).
At the
Gare de Lyon Part-Dieu, the tram stop is outside the station. But be aware: there are two exits. Follow the signs inside for the
Rhônexpress (
Porte Alpes) and it will be on your right as you exit. If you find yourself by the metro station, then you need to be on the other side.