How far is Pasco, WA from SeaTac, WA?
The driving distance from Pasco, WA to SeaTac, WA is about 232.4 miles (374 km), with a travel time of about 04h 23m by car.
- The straight-line flight distance is about 172.4 miles (277.4 km).
- For a round trip, plan for roughly 08h 46m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM PDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
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 04h 23m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Kittitas County, Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Light Rain then Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Pasco and SeaTac.
Turn-by-Turn Driving Directions
Step-by-step road directions between Pasco and SeaTac.
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1
Start on North 8th Avenue
640 ft · 32 sec · North 8th Avenue
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2
At the end of the road, turn right onto West Court Street
1439 ft · 45 sec · West Court Street
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3
Turn left onto North 4th Avenue
1 km · 2 min · North 4th Avenue
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4
Take the ramp left
1944 ft · 47 sec
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5
Merge slight left onto Lewis and Clark Trail
1.3 mi · 2 min · Lewis and Clark Trail
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6
Keep slight left to continue on I 182, US 12
11.8 mi · 13 min
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7
Keep slight right to continue on I 82 West, US 12 West: Prosser, Yakima
70.9 mi · 1 hr 17 min
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8
Continue straight
31 mi · 34 min
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9
Keep slight left to continue on I 90 West
101.4 mi · 1 hr 54 min
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10
Take the exit slight right toward I 405: Renton, Everett
1138 ft · 28 sec
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11
Keep slight left to continue on I 405 South: Renton
1 km · 1 min
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12
Merge slight left
10.7 mi · 13 min
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13
Continue straight
1.5 km · 1 min
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14
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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15
Keep slight left to continue on Seattle-Tacoma International Airport
2508 ft · 43 sec
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16
Continue on Airport Expressway
2512 ft · 53 sec · Airport Expressway
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17
Take the exit slight left toward Air Cargo Road, Rental Car Return, Cell Phone Lot
760 ft · 19 sec
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18
Keep slight left to continue on Rental Car Return, Air Cargo Road
41 m · 3 sec
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19
Keep slight left to continue on WA 99: International Boulevard
105 m · 11 sec
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20
Turn left onto South 170th Street
1930 ft · 58 sec · South 170th Street
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21
Turn right onto 32nd Avenue South
949 ft · 36 sec · 32nd Avenue South
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22
Turn right
16 m · 6 sec
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23
Turn right
43 m · 10 sec
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24
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Pasco and SeaTac.
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 90 West
Keep slight left to continue on I 90 West
101 mi · 01h 54m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Slight Chance Light Rain then Mostly Sunny leaving Pasco 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 Pasco to SeaTac?
The road trip is about 232.4 miles (374 km) and usually takes 04h 23m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Ellensburg is a useful midpoint, sitting about 116 miles from Pasco and 116.4 miles from SeaTac.
How much longer is the road route than the straight-line distance?
The direct path is about 172.4 miles (277.4 km), while the road route adds roughly 60 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 6:00 AM to 8:00 AM PDT. If you want a more comfortable same-day return, try to leave by 8:14 AM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.91 one way or $85.82 round trip. Estimated CO2 is about 72.9 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Light Rain then Mostly Sunny around Pasco and Mostly Sunny near SeaTac.
Stop Ideas Near Ellensburg
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 Ellensburg.
Columbia Station
Quincy, Washington
Leavenworth, Washington
Leavenworth
Flight Path Map
This map shows the direct air route between Pasco and SeaTac. Straight-line distance: 172.39 mi (277.44 km).
#1 Pasco
The third most populous city in Franklin County, Washington.
| Population | 77,095 |
| Coordinates | 46.2395800, -119.1005700 |
| Altitude | 118 |
| 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: 374 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 44m |
| 40 mph (64.37 km/h) | 05h 48m |
| 50 mph (80.47 km/h) | 04h 38m |
| 60 mph (96.56 km/h) | 03h 52m |
| 70 mph (112.65 km/h) | 03h 19m |
| 80 mph (129 km/h) | 02h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $42.91 | $85.82 |
| Mid-grade | $5.57 | $45.65 | $91.30 |
| Premium | $5.77 | $47.32 | $94.64 |
| Diesel | $5.47 | $44.83 | $89.66 |
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.