How far is Redmond, WA from SeaTac, WA?
The driving distance from Redmond, WA to SeaTac, WA is about 23.7 miles (38.1 km), with a travel time of about 00h 32m by car.
- The straight-line flight distance is about 17.5 miles (28.2 km).
- For a round trip, plan for roughly 01h 05m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM PDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 32m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
City in, and the county seat of, Pend Oreille County, Washington
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Redmond and SeaTac.
Turn-by-Turn Driving Directions
Step-by-step road directions between Redmond and SeaTac.
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1
Start on 164th Avenue Northeast
609 ft · 24 sec · 164th Avenue Northeast
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2
Enter the roundabout and take exit 1 toward Northeast 76th Street
2 m · 1 sec · Northeast 76th Street
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3
Exit the roundabout onto Northeast 76th Street
614 ft · 21 sec · Northeast 76th Street
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4
Turn slight left onto Leary Way
1830 ft · 58 sec · Leary Way
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5
Take the ramp straight toward WA 520 West
2015 ft · 51 sec
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6
Merge slight left
1.1 km · 54 sec
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7
Take the exit slight right toward Northeast 40th Street
2259 ft · 32 sec
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8
Keep slight left to continue on WA 520 West: Seattle
1 km · 49 sec
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9
Merge slight left
2.8 mi · 3 min
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10
Take the exit slight right toward I 405 South: Renton
1445 ft · 35 sec
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11
Merge slight left
14.8 mi · 18 min
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12
Continue straight
1.5 km · 1 min
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13
Take the exit slight right toward WA 99 South: Seattle-Tacoma International Airport, Rental Car Return, State Patrol, Tukwila International Boulevard Station
1670 ft · 28 sec
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14
Keep slight left to continue on Seattle-Tacoma International Airport
2508 ft · 43 sec
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15
Continue on Airport Expressway
2512 ft · 53 sec · Airport Expressway
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16
Take the exit slight left toward Air Cargo Road, Rental Car Return, Cell Phone Lot
760 ft · 19 sec
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17
Keep slight left to continue on Rental Car Return, Air Cargo Road
41 m · 3 sec
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18
Keep slight left to continue on WA 99: International Boulevard
105 m · 11 sec
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19
Turn left onto South 170th Street
1930 ft · 58 sec · South 170th Street
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20
Turn right onto 32nd Avenue South
949 ft · 36 sec · 32nd Avenue South
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21
Turn right
16 m · 6 sec
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22
Turn right
43 m · 10 sec
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23
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Redmond and SeaTac.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 405 South
Merge slight left
14.8 mi · 00h 18m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Mostly Sunny leaving Redmond and Mostly Sunny near SeaTac.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Redmond to SeaTac?
The road trip is about 23.7 miles (38.1 km) and usually takes 00h 32m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Newport is a useful midpoint, sitting about 11.8 miles from Redmond and 11.9 miles from SeaTac.
How much longer is the road route than the straight-line distance?
The direct path is about 17.5 miles (28.2 km), while the road route adds roughly 6.2 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 7:00 AM to 7:00 PM PDT. If you want a more comfortable same-day return, try to leave by 7:24 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.34 one way or $8.69 round trip. Estimated CO2 is about 7.4 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Redmond and Mostly Sunny near SeaTac.
Stop Ideas Near Newport
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Tukwila Community Center
Renton City Human Services
Renton City Hall
Renton Police Department
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Newport.
King Street Station
Tukwila station
Seattle (Ferry - Pier 69), Washington
Edmonds station
Flight Path Map
This map shows the direct air route between Redmond and SeaTac. Straight-line distance: 17.5 mi (28.16 km).
#1 Redmond
The second most populous city in King County, Washington.
| Population | 72,507 |
| Coordinates | 47.6739900, -122.1215100 |
| Altitude | 13 |
| Country | United States |
#2 SeaTac
Airport in SeaTac, Washington, USA
| Population | 28,904 |
| Coordinates | 47.4484600, -122.2921700 |
| Altitude | 80 |
| Country | United States |
End: SeaTac (-122.29217, 47.44846)
Estimated Travel Time
Distance: 38 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 00h 47m |
| 40 mph (64.37 km/h) | 00h 35m |
| 50 mph (80.47 km/h) | 00h 28m |
| 60 mph (96.56 km/h) | 00h 23m |
| 70 mph (112.65 km/h) | 00h 20m |
| 80 mph (129 km/h) | 00h 17m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $4.34 | $8.69 |
| Mid-grade | $5.57 | $4.62 | $9.24 |
| Premium | $5.77 | $4.79 | $9.58 |
| Diesel | $5.47 | $4.54 | $9.08 |
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.