Here’s a possible travel route and transportation options from Seattle, USA to Tagum City, Philippines with layovers in Singapore and Davao City:

  1. Seattle to Singapore: You can fly directly from Seattle to Singapore with several airlines, including Singapore Airlines, Delta Air Lines, and United Airlines. Flight time is around 16 to 18 hours.
  2. Singapore to Davao City: There are several airlines that offer flights from Singapore to Davao City, including SilkAir, Cebu Pacific, and Philippine Airlines. Flight time is around 3 to 4 hours.
  3. Davao City to Tagum City: Once you arrive in Davao City, you can take a taxi or bus to Tagum City. The distance between the two cities is around 55-60 km, and the travel time is approximately 1 hour.

Overall, the travel time from Seattle to Tagum City with layovers in Singapore and Davao City can range from 20 to 23 hours, depending on the flight schedules and transportation options chosen.