Air Miles Calculator

Distance between Redmond, OR (RDM) and Seattle, WA (SEA)

Flight distance from Redmond to Seattle (Roberts Field – Seattle–Tacoma International Airport) is 228 miles / 366 kilometers / 198 nautical miles. Estimated flight time is 55 minutes.

Driving distance from Redmond (RDM) to Seattle (SEA) is 301 miles / 485 kilometers and travel time by car is about 6 hours 11 minutes.

Map of flight path and driving directions from Redmond to Seattle.

Shortest flight path between Roberts Field (RDM) and Seattle–Tacoma International Airport (SEA).

How far is Seattle from Redmond?

There are several ways to calculate distances between Redmond and Seattle. Here are two common methods:

Vincenty's formula (applied above)
  • 227.626 miles
  • 366.328 kilometers
  • 197.801 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 227.677 miles
  • 366.410 kilometers
  • 197.846 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

Airport information


A Roberts Field
City: Redmond, OR
Country: United States Flag of United States
IATA Code: RDM
ICAO Code: KRDM
Coordinates: 44°15′14″N, 121°9′0″W

B Seattle–Tacoma International Airport
City: Seattle, WA
Country: United States Flag of United States
IATA Code: SEA
ICAO Code: KSEA
Coordinates: 47°26′56″N, 122°18′32″W

Time difference and current local times

There is no time difference between Redmond and Seattle.

Time Difference

Redmond, OR

 PST

Seattle, WA

 PST

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 59 kg (129 pounds).

Frequent Flyer Miles Calculator

Redmond (RDM) → Seattle (SEA).

Distance:
228
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
228

Round trip?