To save on the cost of your flight from Dallas to Sri Lanka, book at least 43 days before your planned departure. Booking around this time can save you about 16% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $1,322 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $1,339.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Dallas to Sri Lanka as you normally would.