How far is Bellingham, WA from Sammamish, WA?
The driving distance from Bellingham, WA to Sammamish, WA is about 90.4 miles (145.5 km), with a travel time of about 01h 57m by car.
- The straight-line flight distance is about 79.5 miles (127.9 km).
- For a round trip, plan for roughly 03h 54m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM PDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 01h 57m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Light Rain
Light Rain Likely
Driving Route Map
The map below follows the saved road route between Bellingham and Sammamish.
Turn-by-Turn Driving Directions
Step-by-step road directions between Bellingham and Sammamish.
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1
Start on Dupont Street
2418 ft · 1 min · Dupont Street
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2
Continue on Prospect Street
1102 ft · 38 sec · Prospect Street
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3
Turn left onto West Champion Street
107 m · 12 sec · West Champion Street
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4
Continue on West Magnolia Street
2616 ft · 1 min · West Magnolia Street
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5
Turn right onto Ellis Street
700 ft · 27 sec · Ellis Street
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6
Turn left onto Lakeway Drive
1207 ft · 49 sec · Lakeway Drive
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7
Take the ramp right toward I 5 South: Seattle
1346 ft · 33 sec
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8
Merge slight left
69.6 mi · 1 hr 22 min
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9
Take the exit slight right toward I 405 South: Bellevue, Renton
1.5 km · 1 min
-
10
Merge slight left
1.5 km · 1 min
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11
Keep slight right
10.3 mi · 13 min
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12
Take the exit slight right toward Northeast 85th Street, Kirkland
2690 ft · 1 min
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13
Turn straight onto Northeast 85th Street
1 mi · 2 min · Northeast 85th Street
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14
Continue on Redmond Way
3.3 mi · 7 min · Redmond Way
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15
Turn slight right
105 m · 15 sec
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16
Turn straight onto East Lake Sammamish Parkway Northeast
1.9 mi · 4 min · East Lake Sammamish Parkway Northeast
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17
Arrive at your destination
0 m · 1 sec · East Lake Sammamish Parkway Northeast
Car Route Details
A richer read on the saved driving route between Bellingham and Sammamish.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 5 South
Merge slight left
69.6 mi · 01h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Chance Light Rain leaving Bellingham and Light Rain Likely near Sammamish.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Bellingham to Sammamish?
The road trip is about 90.4 miles (145.5 km) and usually takes 01h 57m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Smokey Point is a useful midpoint, sitting about 45.2 miles from Bellingham and 45.2 miles from Sammamish.
How much longer is the road route than the straight-line distance?
The direct path is about 79.5 miles (127.9 km), while the road route adds roughly 10.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM PDT. If you want a more comfortable same-day return, try to leave by 2:36 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $16.69 one way or $33.39 round trip. Estimated CO2 is about 28.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Light Rain around Bellingham and Light Rain Likely near Sammamish.
Stop Ideas Near Smokey Point
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Smokey Point.
Stanwood station
Everett Station
Skagit Transportation Center
Monroe, Washington
Flight Path Map
This map shows the direct air route between Bellingham and Sammamish. Straight-line distance: 79.48 mi (127.91 km).
#1 Bellingham
The most populous city in Whatcom County, Washington.
| Population | 93,955 |
| Coordinates | 48.7595500, -122.4882200 |
| Altitude | 21 |
| Country | United States |
#2 Sammamish
Town
| Population | 65,960 |
| Coordinates | 47.6417700, -122.0804000 |
| Altitude | 18 |
| Country | United States |
End: Sammamish (-122.0804, 47.64177)
Estimated Travel Time
Distance: 145 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 00m |
| 40 mph (64.37 km/h) | 02h 15m |
| 50 mph (80.47 km/h) | 01h 48m |
| 60 mph (96.56 km/h) | 01h 30m |
| 70 mph (112.65 km/h) | 01h 17m |
| 80 mph (129 km/h) | 01h 07m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $16.69 | $33.39 |
| Mid-grade | $5.57 | $17.76 | $35.52 |
| Premium | $5.77 | $18.41 | $36.82 |
| Diesel | $5.47 | $17.44 | $34.88 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Washington · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.