Portland, United States → Boston, United States · ✈ 5h 36min · 🚗 66h 14min
2,201 nautical miles · Time difference: +3h ahead · Direction: southeast
The distance from Portland to Boston is 4,076 km (2,533 miles). The fastest way to travel is by flight. A direct flight takes approximately 5h 36min.
The straight-line distance from Portland, United States to Boston, United States is approximately 4,076 kilometers (2,533 miles or 2,201 nautical miles). This measurement uses the Haversine formula, computing the great-circle distance — the shortest path between two points on Earth's surface.
Boston is located southeast of Portland. Portland is in North America, in the Pacific Northwest region of United States, while Boston is in North America, in Northeast, United States. Both cities are in North America.
| Mode | Distance | Est. Time | Best For |
|---|---|---|---|
| ✈️ Flight | 4,076 km | ~5h 36min | Best option for speed |
Our recommendation: flight is typically the best way to travel from Portland to Boston. For 4,076 km, flying saves significant time and is usually the most practical choice.
Portland sits at 45.5152°N, 122.6784°W, while Boston is located at 42.3601°N, 71.0589°W. The initial compass bearing from Portland to Boston is 76° (ENE), so a great-circle flight path leaves Portland heading roughly ENE. Because the Earth is curved, the actual heading shifts gradually along the route — pilots and navigation systems update it continuously instead of holding a single fixed compass bearing.
The latitude difference is 3.16° and the longitude difference is 51.62°. Each degree of latitude represents about 111 km, which is one reason cross-latitude routes feel longer even when the map looks similar to east–west journeys.
The geographic midpoint between Portland and Boston is approximately 46.9441°N, 96.1333°W. This is the great-circle halfway position — the spot where you would be exactly 2,038 km from each city. On long-haul flights this point usually falls over open ocean or remote terrain, which is why in-flight maps often look "empty" mid-route.
Boston is roughly 3 hours ahead of Portland. When it is 09:00 in Portland, it is approximately 12:00 in Boston. A 3-hour shift is small enough that most travelers adjust within a day. Daylight saving time can shift the offset by an hour during certain months, so confirm the exact difference for your specific travel dates.
Portland is a major city in United States with a population of approximately 652,503. Located in the Pacific Northwest region, it is an important hub in North America. Despite its smaller size, Portland plays an important regional role in United States and attracts visitors year-round.
→ See all distances from Portland
Boston is a notable city in United States with a population of approximately 675,647. Situated in the Northeast region, it serves as a key destination in North America. Boston is a popular destination in the Northeast region of United States, known for its unique character and attractions.
→ See all distances from Boston
4,076 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 4,076 km between Portland and Boston means a beam of light could travel this distance in approximately 13.6 milliseconds — but a flight still takes 5h 36min.
Despite both being in United States, Portland and Boston are 4,076 km apart — a reminder of how vast the country is. Flying is the only practical option, and the journey likely involves crossing multiple climate zones and time zones.
The straight-line distance from Portland to Boston is approximately 4,076 kilometers (2,533 miles, 2,201 nautical miles).
A direct flight takes approximately 5h 36min, based on 800 km/h cruising speed plus 30 minutes for takeoff and landing.
Estimated driving time is approximately 66h 14min, based on 80 km/h average speed and roads being ~30% longer than straight-line distance.
Boston is approximately +3h ahead compared to Portland.
The estimated road distance is approximately 5,299 km, which is about 30% longer than the 4,076 km straight-line distance.
📍 Data: Coordinates from OpenStreetMap contributors. Distances calculated using the Haversine formula. Travel times are estimates only. Last verified: May 30, 2026.