Denver, United States → Seattle, United States · ✈ 2h 33min · 🚗 26h 40min
886 nautical miles · Time difference: -1h behind · Direction: northwest
The distance from Denver to Seattle is 1,641 km (1,020 miles). The fastest way to travel is by flight. A direct flight takes approximately 2h 33min.
The straight-line distance from Denver, United States to Seattle, United States is approximately 1,641 kilometers (1,020 miles or 886 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Seattle is located northwest of Denver. Denver is in North America, in the Mountain region of United States, while Seattle is in North America, in Pacific Northwest, United States. Both cities are in North America.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 1,641 km | ~2h 33min | Best option for speed |
| 🚗 Drive | ~2,133 km | ~26h 40min | Long journey, consider stops |
| 🚂 Regular Train | ~1,969 km | ~16h 25min | Scenic but slow |
Our recommendation: flight is typically the best way to travel from Denver to Seattle. For 1,641 km, flying saves significant time and is usually the most practical choice.
Based on an estimated road distance of 2,133 km, fuel costs for driving from Denver to Seattle are approximately $171–$320 USD (at $0.08–$0.15 per km, depending on vehicle efficiency and local fuel prices). Additional costs may include tolls, parking, and accommodation for longer trips.
Denver is a major city in United States with a population of approximately 727,211. Located in the Mountain region, it is an important hub in North America. Despite its smaller size, Denver plays an important regional role in United States and attracts visitors year-round.
→ See all distances from Denver
Seattle is a notable city in United States with a population of approximately 737,015. Situated in the Pacific Northwest region, it serves as a key destination in North America. Seattle is a popular destination in the Pacific Northwest region of United States, known for its unique character and attractions.
→ See all distances from Seattle
1,641 km is a long-distance route that typically requires air travel. This is comparable to spanning a large continent. For context, London to Dubai is about 5,500 km.
The 1,641 km between Denver and Seattle means a beam of light could travel this distance in approximately 5.5 milliseconds — but a flight still takes 2h 33min.
See how the Denver to Seattle distance compares to similar routes:
The straight-line distance from Denver to Seattle is approximately 1,641 kilometers (1,020 miles, 886 nautical miles).
A direct flight takes approximately 2h 33min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 26h 40min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Seattle is approximately -1h behind compared to Denver.
The estimated road distance is approximately 2,133 km, which is about 30% longer than the 1,641 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: April 7, 2026.