No it is a grave sin (mortal sin).
One is not to miss Mass on a Sunday or other days of Obligation (Holy Days) for just any reason -rather it must be a serious reason - for such is of the highest importance - the Eucharist is indeed the source and summit of the Christian life!
2181 The Sunday Eucharist is the foundation and confirmation of all Christian practice. For this reason the faithful are obliged to participate in the Eucharist on days of obligation, unless excused for a serious reason (for example, illness, the care of infants) or dispensed by their own pastor. Those who deliberately fail in this obligation commit a grave sin.
I very much recommend more reading on the matter - once one realizes the reality of what the Mass is and how important it is - one can then resist very quickly any temptation to miss Mass.
Read that whole section there linked (all about the Lords Day (Sunday) - a day of worship and rest…etc
More from Pope Benedict XVI w2.vatican.va/content/benedict-xvi/en/apost_exhortations/documents/hf_ben-xvi_exh_20070222_sacramentum-caritatis.html#The_eucharistic_form_of_the_christian_life
There was a group of early Christians who gathered to celebrate Sunday Mass (the Lords Day) - which was illegal. They were caught and put on trial - and the response of these martyrs as to why they went against the law was …“without the Lords Day (the Sunday Eucharist) it is not possible to live.”