It’s generally more expensive to depart on a Wednesday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.
Travelers have found it’s best to book a flight 39 days in advance to save up to 67% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 39 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Austin to St John's 1-2 weeks in advance for as low as $539, or $728 for flights within the next 24 hours.
Flights from Austin to St John's lean towards being more expensive in December. Prices are generally better when you fly from Austin to St John's in August, with the cheapest ticket starting at $272.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Austin to St John's as you normally would.