This 430.9-mile drive from Grants Pass to Hermiston will take approximately 8 hours and 23 minutes of driving time. Given the duration and the mixed nature of the drive, it's best split over two recommended days. You'll be navigating primarily on OR 99, Columbia River Highway, and Old Oregon Trail Highway, with about 59% of the journey on highways. The estimated fuel cost for this trip is $86. This route offers a varied experience across Oregon, moving from the Pacific Coast region towards another part of the state, making it more than just a simple point-to-point journey.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
215.5 miles from Grants Pass, OR
A natural place for your longest stop of the day
, about 4h 16m into the drive
.
Main Roads
Road
Distance
Duration
OR 99
241.4 mi
4h 44m
Columbia River Highway
158.1 mi
2h 55m
Old Oregon Trail Highway
15.1 mi
16m
Banfield Freeway
6.6 mi
8m
OR 207
4.2 mi
6m
I 5
1.1 mi
1m
West Hermiston Avenue
0.9 mi
1m
Northeast 7th Street
0.8 mi
1m
Longest stretch:
OR 99
— 241.4 mi, about 4h 44m
Traffic on I-5
Hour-of-day weekday pattern from 55 FHWA count stations on your route.
Peak
4 PM
~2,286 veh/hr typical
· worst 2,721
Quietest
2 AM
~198 veh/hr
Peak-to-quiet ratio
11.5×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Grants Pass, OR and Hermiston, OR.
1
Start on Southwest H Street
196 ft·16 sec·Southwest H Street
2
Turn left onto Southwest 4th Street
0.7 mi·1 min·Southwest 4th Street
3
Continue on Northwest Washington Boulevard
0.3 mi·41 sec·Northwest Washington Boulevard
4
Turn right onto Northwest Savage Street
0.1 mi·21 sec·Northwest Savage Street
5
Continue on Northeast Savage Street
504 ft·21 sec·Northeast Savage Street
6
Turn left onto OR 99
0.8 mi·1 min·Northeast 7th Street
7
Take the exit onto OR 99
241 mi·4 hr 44 min·OR 99
Use the straight lane.
8
Keep slight right at fork onto I 5
1.1 mi·1 min·I 5
Toward SeattleUse the slight left / slight right lanes.
9
Take the exit
0.2 mi·17 sec
Exit 300Toward I 84 East, US 30 East: The Dalles, Portland AirportUse the straight / slight right lanes.
10
Keep slight left at fork
0.9 mi·1 min
Toward I 84 East, US 30 East: Portland Airport, The DallesUse the straight / slight right lanes.
11
Continue on I 84; US 30
6.6 mi·8 min·Banfield Freeway
Use the straight / slight right lanes.
12
Continue on I 84; US 30
158 mi·2 hr 55 min·Columbia River Highway
Use the straight / slight right lanes.
13
Continue on I 84; US 30
15 mi·16 min·Old Oregon Trail Highway
14
Take the exit
0.3 mi·36 sec
Toward OR 207: Hermiston, Lexington
15
Turn left onto OR 207
4.2 mi·6 min·OR 207
16
Turn right onto West Hermiston Avenue
0.9 mi·1 min·West Hermiston Avenue
17
Turn right onto North 1st Place
400 ft·14 sec·North 1st Place
18
Turn left onto West Locust Avenue
517 ft·14 sec·West Locust Avenue
19
Arrive at destination
East Main Street
Trip Plan
To make the most of this 8-hour-plus drive, plan to split it over two days, especially since it involves 2 recommended stops. Leaving early in the morning on your first day will allow you to cover a significant portion of the 430.9 miles. Keep an eye on your fuel levels, as the longest stretch without a major town might be on OR 99. The $86 fuel estimate is a good baseline for budgeting, but always factor in a little extra. Breaking up the drive will make it more enjoyable and less taxing.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 215.5 miles from Grants Pass, OR, or about 4h 16m into the drive.
The longest continuous stretch on this route runs about 241.4 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 95 miles or 1h 54m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 215.5 miles or 4h 16m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 215.5 miles or 4h 16m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 7h 14m
Traffic, exits, and arrival timing usually matter more near Hermiston, OR than in the middle of the route.
Before You Leave
+
Open the route before leaving Grants Pass, OR so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Grants Pass, OR
Aim for roughly 215 miles and 4.2 hours of wheel time on this day.
Day 2
Finish the approach into Hermiston, OR
Aim for roughly 215 miles and 4.2 hours of wheel time on this day.
Your first comfortable stop window is around 95 miles from Grants Pass, OR.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on OR 99 for about 241.4 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 12
5 decision points cluster between mile 1 and 244.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
1 mi into trip|~2m in|Northwest Savage Street
Turn right onto Northwest Savage Street
Navigation decision point
5
2 mi into trip|~5m in|OR 99
Take the exit onto OR 99
Exit ramp - move to the correct lane early. Lane positioning matters here
Use the straight lane.
7
243.4 mi into trip|~4h 49m in|I 5
Keep slight right at fork onto I 5 toward Seattle
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / slight right lanes.
Toward Seattle
8
244.5 mi into trip|~4h 51m in
Take the exit toward I 84 East, US 30 East: The Dalles, Portland Airport
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Exit 300
Toward I 84 East, US 30 East: The Dalles, Portl...
8
244.7 mi into trip|~4h 51m in
Keep slight left at fork toward I 84 East, US 30 East: Portland Airport, The Dalles
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight / slight right lanes.
Toward I 84 East, US 30 East: Portland Airport,...
Fuel & Cost
Regular Gas
$88.00 one way
$175.99 round trip
$5.19/gal25.4 MPG avg151 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$93.61
$187.22
premium
$5.72
$97.02
$194.04
diesel
$5.35
$90.76
$181.52
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$88
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$218–$328
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 150.8 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $45 in charging
· 1 stop
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
129.3
1
$45.24
$20.68
Efficient EV
107.7
1
$37.70
$17.24
EV Truck/SUV
172.4
2
$60.33
$27.58
Gas CO2
151 kg
EV CO2
50 kg (67% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jun 1, 2026
Origin
Grants Pass, OR
Afternoon
in Grants Pass on Wednesday
Local time
1:55 PM
PDT
Current temp
44°F
Clear
S 1 mph0% chanceLive forecast
Destination
Hermiston, OR
Afternoon
in Hermiston on Wednesday
Local time
1:55 PM
PDT
Current temp
47°F
Mostly Clear
S 5 mph0% chanceLive forecast
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
3 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
8h 23m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
Expect a mixed drive on this route, with 59% of the total mileage on highways. The road character shifts throughout the journey, offering a blend of faster-paced highway travel and more local road exploration. You'll encounter a longest continuous stretch of 241.4 miles on OR 99, which will likely be your most straightforward segment. The overall feel is less of a monotonous interstate experience and more of a varied exploration of Oregon's roadways.
59% highway, the rest on surface roads — varied driving throughout.
19 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 241.4 mi on OR 99.
How Hard Is This Drive?
7/10
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 1 miles in near Northwest Savage Street.
Driving Effort7/10
Demanding - plan breaks and stay ahead of the key maneuvers
Balances navigation complexity with total wheel time.
This is a demanding drive. With 12 significant decision points across 430.9 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 1 miles (Northwest Savage Street): Navigation decision point; at 2 miles (OR 99): Exit ramp - move to the correct lane early. Lane positioning matters here; at 243.4 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here.
Elevation Profile
Mostly flat terrain
940 ft49 ft
Total Climb
283 ft
Total Descent
891 ft
Highest Point
940 ft
Elevation Range
891 ft
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Grants Pass, OR and Hermiston, OR, road signs point toward Seattle, Portland Airport and The Dalles.
Grants Pass is a city in Southern Oregon.
The slogan for the city is “It’s the Climate,” and nothing could fit the town better. Grants Pass has been known in the winter to receive sun, rain, and snow all on the same day! Its climate is very similar to that of nearby Medford in Jackson County.
One of Grants Pass’ greatest achievements is being one of the most caffeinated cities in Southern Oregon. It is home to the originators of Dutch Bros. and stickers adorn almost every car’s bumper or window.
The longest stretch is about 241.4 miles on OR 99. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 215 miles on day one.
Yes — we found about 38 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This route has a higher-than-average number of complex decision points, which get harder in the dark. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Hermiston, OR before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 38 rest areas along the route for bathroom stops.
The main spots that need attention: at 1 miles (Northwest Savage Street): Navigation decision point; at 2 miles (OR 99): Exit ramp - move to the correct lane early. Lane positioning matters here; at 243.4 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here.
Not recommended in a single day. At 8.4 hours each way, a round trip means 16.8 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Hermiston, OR before the return drive.
