Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Thunder Bay to Limerick as you normally would.
For a flight from Thunder Bay to Limerick, you will be flying from Thunder Bay. Thunder Bay (YQT) is just 5.6 km from the centre of the city. Thunder Bay is the only Thunder Bay airport and it handles 0 outbound flights to Limerick per day. 0 airlines have flights to Limerick from Thunder Bay on a regular basis.