Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chennai to Spokane as you normally would.
Looking at all options, your cheapest flight can be booked for ₹ 88,311. While the most popular route (Chennai - Spokane) can be booked for ₹ 126,387 on average our data indicates ₹ 88,311 when flying from Chennai to Spokane.