The journey from Lansdowne to Seattle covers approximately 4,500 kilometers. Flying from Dulles (IAD) to Seattle-Tacoma International Airport (SEA) is the most practical choice. Driving involves a long trek across the northern United States via I-90, passing through the Great Plains and the Rocky Mountains. You will transition from the Atlantic coast to the lush, rainy landscapes of the Pacific Northwest. Ensure your vehicle is prepared for long-distance travel and potential mountain weather.
Total Distance: Driving distance 4,550 km; straight-line air distance 3,700 km.
|
Direct
|
Direct
|
|
|---|---|---|
| Duration | 6 hours | 48 hours |
| Avg Price | $300 - $700 | $600 - $950 |
| Operator | Alaska Airlines | Personal Vehicle |
| Route | IAD to SEA | I-90 W |
| Tip | Book early for the best rates on this popular transcontinental route. | Prepare for significant elevation changes in Montana and Idaho. |
July to September for the best chance of clear, sunny weather.