Introduction. Sinus headaches cause a dull, deep, throbbing pain in the front of your head and face. They are caused by an inflammation in your sinuses, air-filled cavities around your nose, eyes, and cheeks. Bending down or leaning over usually makes the pain worse, as does cold and damp weather. Sinus headaches often begin first thing in the morning, and may be better by afternoon. Sinus headaches can be difficult to diagnose, however, because symptoms are similar to tension headaches and migraines.
The total distance from Boston, MA to Seattle, WA is 2,492 miles. This is equivalent to 4 011 kilometers or 2,166 nautical miles. Your trip begins in Boston, Massachusetts. It ends in Seattle, Washington. Your flight direction from Boston, MA to Seattle, WA is Northwest (-64 degrees from North). The distance calculator helps you figure out how far it is to fly from Boston, MA to Seattle, WA. It does this by computing the straight line flying distance (as the crow flies).
Distance from Seattle, WA to Moscow, Russia. The total distance from Seattle, WA to Moscow, Russia is 5,218 miles. This is equivalent to 8â397 kilometers or 4,534 nautical miles. Your trip begins in Seattle, Washington. It ends in Moscow, Russia. Your flight direction from Seattle, WA to Moscow, Russia is North (12 degrees from North). The distance calculator helps you figure out how far it is to fly from Seattle, WA to Moscow, Russia. It does this by computing the straight line flying distance (as the crow flies). It uses the great circle formula to compute the total travel mileage.