How far is Union Gap, WA from Pasco, WA?
The driving distance from Union Gap, WA to Pasco, WA is about 80.7 miles (129.8 km), with a travel time of about 01h 16m by car.
- The straight-line flight distance is about 69.1 miles (111.2 km).
- For a round trip, plan for roughly 02h 32m 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 16m.
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.
City in Washington, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Slight Chance Light Rain then Mostly Sunny
Driving Route Map
The map below follows the saved road route between Union Gap and Pasco.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union Gap and Pasco.
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1
Start on the route
24 m · 8 sec
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2
Turn right
21 m · 7 sec
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3
Turn right onto East Ahtanum Road
40 m · 11 sec · East Ahtanum Road
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4
Turn left onto Main Street
1.5 km · 2 min · Main Street
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5
Turn slight right
1129 ft · 19 sec
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6
Take the ramp straight
1408 ft · 34 sec
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7
Keep slight right
1286 ft · 31 sec
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8
Merge slight left
63.4 mi · 1 hr 8 min
-
9
Take the exit slight right toward I‑182 east, US 12 east: Richland, Pasco
14.5 mi · 16 min
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10
Take the exit slight right toward North 4th Avenue: Pasco City Center
1011 ft · 25 sec
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11
Turn straight onto North 4th Avenue
3107 ft · 1 min · North 4th Avenue
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12
Turn right onto Court Street
1439 ft · 43 sec · Court Street
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13
Turn left onto North 8th Avenue
640 ft · 28 sec · North 8th Avenue
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14
Arrive at your destination
0 m · 1 sec · North 8th Avenue
Car Route Details
A richer read on the saved driving route between Union Gap and Pasco.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
Main Street
Merge slight left
63.4 mi · 01h 08m
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.
Sunny leaving Union Gap and Slight Chance Light Rain then Mostly Sunny near Pasco.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union Gap to Pasco?
The road trip is about 80.7 miles (129.8 km) and usually takes 01h 16m 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?
Grandview is a useful midpoint, sitting about 40.3 miles from Union Gap and 40.3 miles from Pasco.
How much longer is the road route than the straight-line distance?
The direct path is about 69.1 miles (111.2 km), while the road route adds roughly 11.6 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 3:58 PM PDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $14.91 one way or $29.83 round trip. Estimated CO2 is about 25.3 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Union Gap and Slight Chance Light Rain then Mostly Sunny near Pasco.
Stop Ideas Near Grandview
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 Grandview.
Pasco Intermodal Train Station
Wishram
Moses Lake, Washington
Pendleton, Oregon
Flight Path Map
This map shows the direct air route between Union Gap and Pasco. Straight-line distance: 69.08 mi (111.17 km).
#1 Union Gap
City in Yakima County, Washington, United States
| Population | 6,160 |
| Coordinates | 46.5573500, -120.4750600 |
| Altitude | 300 |
| Country | United States |
#2 Pasco
The third most populous city in Franklin County, Washington.
| Population | 77,095 |
| Coordinates | 46.2395800, -119.1005700 |
| Altitude | 118 |
| Country | United States |
End: North 8th Avenue (-119.100625, 46.239581)
Estimated Travel Time
Distance: 130 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 41m |
| 40 mph (64.37 km/h) | 02h 00m |
| 50 mph (80.47 km/h) | 01h 36m |
| 60 mph (96.56 km/h) | 01h 20m |
| 70 mph (112.65 km/h) | 01h 09m |
| 80 mph (129 km/h) | 01h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $5.23 | $14.91 | $29.83 |
| Mid-grade | $5.57 | $15.87 | $31.73 |
| Premium | $5.77 | $16.45 | $32.89 |
| Diesel | $5.47 | $15.58 | $31.16 |
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.