Greetings from FRance-now sitting in MUlhouse, Big East region, and noted yet another ´social movement´=eufemism for strike in the bubbly region just west (CHampagne), effecting the remaining few regional direct TER-trains to the big capital Paris.
Having taking a plane there myself some time ago: this airpt has NO train station on the grounds-the last mile is on a PAYable local/regional bus-less as 2€
Yes, the general SNCF-site is notorious for sending people as much as possible into TGV etc trains.
ALT: the specific sites of the regional TER-in this case Occitanie (=´the country where they say oc´ for oui=yes) and PACA. On those of the regions one can also check the fiches horaires per line and the enormous list of planned works. Or use the always obliging bahn.de by german railways-can also set that one to ´only local trains´ if so wanted-this exclude the TGV and RES-needed FRench IC-trains. Using that for a weekday the week before it only shows 1 train without change early morning, confirming your notion.
Also some additional:
Occitanie TER trains are labelled LiO (Lignes in Oc). They seem mainly set on offering low fares-many of the local smaller city buses are free-joined by Montpellier a few month ago, but just for the local people. Many TER trains offer much lower fares, when prebooked.
Also there is a kind of touristy pass, for consecutive 2-5 days, only for local TER-trains in this region (goes as far as Avignon, not this airport place) for 10€/day. MUst be ordered online and self-print or loaded on fone (dont know if specific app is needed for that).
On the 1st weekend of the month ALL TER trains, but only prebooked till exhausted, sell for just 1€/ride. I dk how they handle any other comers, like passholders etc. You may enjoy this experience seeing your date.
And no, MON 6/5 is no long weekend, THU 9/5 is=ascension, but this weekend is in some FR regions the last of the spring holidays, again I dk if this also applies for this region-or not. If you stay in this area the week before: 1/5, for the joyous united workers often leads to much reduced service.
Also: a kind of FRench age-old institution might explain a little: the ´blanc horaire´= a few hrs gap in the timings to allow for any urgent inspections, short repairs and the like. Mostly late morning-just before normal lunch-perhaps also a kind of excuse to have the railway staff their cherished cooked hot lunch at that time as the tradition says all FRench should have-and many still do as I see today. As you may all know, rigid hourly timings etc are not a really french thing.
.