How far is Quincy, IL, from Seattle, WA?
The distance between Seattle (Seattle–Tacoma International Airport) and Quincy (Quincy Regional Airport) is 1630 miles / 2623 kilometers / 1416 nautical miles.
The driving distance from Seattle (SEA) to Quincy (UIN) is 2031 miles / 3268 kilometers, and travel time by car is about 35 hours 26 minutes.
Seattle–Tacoma International Airport – Quincy Regional Airport
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Distance from Seattle to Quincy
There are several ways to calculate the distance from Seattle to Quincy. Here are two standard methods:
Vincenty's formula (applied above)- 1629.695 miles
- 2622.740 kilometers
- 1416.166 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 1625.858 miles
- 2616.564 kilometers
- 1412.832 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).
How long does it take to fly from Seattle to Quincy?
The estimated flight time from Seattle–Tacoma International Airport to Quincy Regional Airport is 3 hours and 35 minutes.
What is the time difference between Seattle and Quincy?
The time difference between Seattle and Quincy is 2 hours. Quincy is 2 hours ahead of Seattle.
Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and Quincy Regional Airport (UIN)
On average, flying from Seattle to Quincy generates about 188 kg of CO2 per passenger, and 188 kilograms equals 414 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Seattle to Quincy
See the map of the shortest flight path between Seattle–Tacoma International Airport (SEA) and Quincy Regional Airport (UIN).
Airport information
| Origin | Seattle–Tacoma International Airport |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | SEA |
| ICAO Code: | KSEA |
| Coordinates: | 47°26′56″N, 122°18′32″W |
| Destination | Quincy Regional Airport |
|---|---|
| City: | Quincy, IL |
| Country: | United States |
| IATA Code: | UIN |
| ICAO Code: | KUIN |
| Coordinates: | 39°56′33″N, 91°11′40″W |