How far is Marietta, WA from Federal Way, WA?
The driving distance from Marietta, WA to Federal Way, WA is about 118.4 miles (190.6 km), with a travel time of about 02h 06m by car.
- The straight-line flight distance is about 102 miles (164.1 km).
- For a round trip, plan for roughly 04h 12m 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 02h 06m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Marietta and Federal Way.
Turn-by-Turn Driving Directions
Step-by-step road directions between Marietta and Federal Way.
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1
Start on Bayon Road
11 m · 8 sec · Bayon Road
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2
Turn left onto Marine Drive
2.1 mi · 5 min · Marine Drive
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3
Turn left onto Alderwood Avenue
1436 ft · 29 sec · Alderwood Avenue
-
4
Continue on Airport Drive
1.3 km · 1 min · Airport Drive
-
5
Continue on West Bakerview Road
803 ft · 19 sec · West Bakerview Road
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6
Take the ramp slight right toward I-5 South Onramp
1594 ft · 39 sec · I-5 South Onramp
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7
Merge slight left
110.2 mi · 2 hr 13 min
-
8
Take the exit slight right toward South 272nd Street
2018 ft · 55 sec
-
9
Turn right onto South 272nd Street
2875 ft · 1 min · South 272nd Street
-
10
Turn left onto Pacific Highway South
2.5 mi · 5 min · Pacific Highway South
-
11
Turn left onto South 312th Street
64 m · 9 sec · South 312th Street
-
12
Turn right
7 m · 2 sec
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13
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Marietta and Federal Way.
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 Onramp
Merge slight left
110 mi · 02h 13m
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.
Mostly Sunny leaving Marietta and Sunny near Federal Way.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Marietta to Federal Way?
The road trip is about 118.4 miles (190.6 km) and usually takes 02h 06m 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?
North Marysville is a useful midpoint, sitting about 58.6 miles from Marietta and 59.8 miles from Federal Way.
How much longer is the road route than the straight-line distance?
The direct path is about 102 miles (164.1 km), while the road route adds roughly 16.4 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 2:18 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $22.72 one way or $45.44 round trip. Estimated CO2 is about 37.1 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Marietta and Sunny near Federal Way.
Stop Ideas Near North Marysville
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 North Marysville.
Everett Station
Stanwood station
Monroe, Washington
Monroe (Eastbound), WA
Flight Path Map
This map shows the direct air route between Marietta and Federal Way. Straight-line distance: 101.95 mi (164.08 km).
#1 Marietta
Situated at an elevation of 10 feet along Bellingham Bay, this low-lying Whatcom County community is located near the outlet of the Nooksack River.
| Population | 0 |
| Coordinates | 48.7870500, -122.5804500 |
| Altitude | 3 |
| Country | United States |
#2 Federal Way
A city in King County, Washington.
| Population | 96,307 |
| Coordinates | 47.3223200, -122.3126200 |
| Altitude | 141 |
| Country | United States |
End: (-122.312612, 47.32232)
Estimated Travel Time
Distance: 191 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 03h 56m |
| 40 mph (64.37 km/h) | 02h 57m |
| 50 mph (80.47 km/h) | 02h 22m |
| 60 mph (96.56 km/h) | 01h 58m |
| 70 mph (112.65 km/h) | 01h 41m |
| 80 mph (129 km/h) | 01h 28m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.44 | $22.72 | $45.44 |
| Mid-grade | $5.72 | $23.91 | $47.81 |
| Premium | $5.98 | $24.98 | $49.97 |
| Diesel | $7.29 | $30.48 | $60.96 |
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 · Oct 15, 2026