Medford to Cascade Locks is 315 miles and takes about 6h 16m via I 5 and Columbia River Highway, with a fuel budget near $66 and enough daylight to finish in a day. This trip stays within Oregon, moving from the Pacific Coast region towards the Columbia River Gorge area. You'll spend the vast majority of your time on the highway, making for a straightforward drive. If you're looking for an efficient way to get from Southern Oregon to the Portland area and beyond, this route is a solid option.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
157.5 miles from Medford, OR
A natural place for your longest stop of the day
, about 3h 8m into the drive
.
Main Roads
Road
Distance
Duration
I 5
270 mi
5h 17m
Columbia River Highway
34 mi
40m
Banfield Freeway
6.6 mi
8m
North Riverside Avenue
1.1 mi
2m
US 30
1.1 mi
2m
Crater Lake Highway
0.4 mi
1m
West 4th Street
0.3 mi
<1m
Riverside Avenute Connection #1
0.1 mi
<1m
Longest stretch:
I 5
— 270 mi, about 5h 17m
Traffic on I-5
Hour-of-day weekday pattern from 63 FHWA count stations on your route.
Peak
4 PM
~2,247 veh/hr typical
· worst 2,663
Quietest
2 AM
~187 veh/hr
Peak-to-quiet ratio
12×
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 Medford, OR and Cascade Locks, OR.
1
Start on North Fir Street
0.1 mi·18 sec·North Fir Street
2
Turn right onto West 4th Street
0.3 mi·39 sec·West 4th Street
3
Turn left onto OR 99
1.1 mi·2 min·North Riverside Avenue
4
Turn slight right onto Riverside Avenute Connection #1
0.1 mi·23 sec·Riverside Avenute Connection #1
5
Turn straight onto OR 62
0.4 mi·1 min·Crater Lake Highway
6
Take the exit
0.2 mi·23 sec
7
Merge onto I 5
269 mi·5 hr 16 min·I 5
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
34 mi·40 min·Columbia River Highway
Use the straight / slight right lanes.
13
Take the exit onto US 30
1.1 mi·2 min·US 30
Toward Cascade Locks, StevensonUse the straight lane.
14
Arrive at destination
US 30
Trip Plan
Given the 6h 16m duration, this is a manageable one-day drive. Aim to depart Medford in the morning to maximize daylight hours and avoid the worst of potential traffic. You'll have a single major stretch of 270 miles on I 5, so plan your first fuel stop before you hit that long segment. While there's only one recommended stop, feel free to pull over at any convenient exit for a break. Keep an eye on your fuel gauge, especially as you near the Columbia River Highway, as services can be more spread out than on the interstate.
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.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 157.5 miles from Medford, OR, or about 3h 8m into the drive.
The longest continuous stretch on this route runs about 270 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 69 miles or 1h 24m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 157.5 miles or 3h 8m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 5h 6m
Traffic, exits, and arrival timing usually matter more near Cascade Locks, OR than in the middle of the route.
Before You Leave
+
Open the route before leaving Medford, 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.
Day 1
Settle into the route from Medford, OR
This is one driving day of about 315 miles and 6h 16m.
Your first comfortable stop window is around 69 miles from Medford, OR.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on I 5 for about 270 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 8
5 decision points cluster between mile 0.1 and 313.9 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0.1 mi into trip|~0m in|West 4th Street
Turn right onto West 4th Street
Navigation decision point
7
271.2 mi into trip|~5h 21m 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
272.2 mi into trip|~5h 23m 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
272.4 mi into trip|~5h 23m 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,...
7
313.9 mi into trip|~6h 14m in|US 30
Take the exit onto US 30 toward Cascade Locks, Stevenson
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the straight lane.
Toward Cascade Locks, Stevenson
Fuel & Cost
Regular Gas
$64.33 one way
$128.65 round trip
$5.19/gal25.4 MPG avg110 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$5.52
$68.43
$136.86
premium
$5.72
$70.92
$141.85
diesel
$5.35
$66.35
$132.70
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$64
Meals
$25–$50
Total
$89–$114
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 110.2 kg one way.
Prices: EIA weekly data, 2026-06-01.
Driving Electric?
About $33 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
94.5
1
$33.08
$15.12
Efficient EV
78.8
0
$27.56
$12.60
EV Truck/SUV
126
1
$44.10
$20.16
Gas CO2
110 kg
EV CO2
37 kg (66% 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 2, 2026
Origin
Medford, OR
Afternoon
in Medford on Wednesday
Local time
12:05 PM
PDT
Current temp
53°F
Mostly Clear
S 1 mph0% chanceLive forecast
Destination
Cascade Locks, OR
Afternoon
in Cascade Locks on Wednesday
Local time
12:05 PM
PDT
Current temp
58°F
Mostly Clear
ENE 9 mph0% chanceLive forecast
50°F
Springfield, OR
158 mi in
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.
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
5 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
6h 16m on the road
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
More Details
What kind of drive is this?
This route is 88% highway, so expect a lot of time on interstates and freeways. The longest stretch without a significant change in road type is 270 miles on I 5. You'll transition from Interstate 5 to surface roads like the Columbia River Highway as you approach your destination. The initial part of the drive will likely feel like typical interstate cruising, while the latter half will involve more local traffic and potentially more frequent exits.
88% highway — fuel and pacing are the main things to plan.
14 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 270 mi on I 5.
How Hard Is This Drive?
7/10
This is a straightforward highway drive that stays mostly on I 5 and Columbia River Highway. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 0.1 miles in near West 4th 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 8 significant decision points across 315 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 0.1 miles (West 4th Street): Navigation decision point; at 271.2 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here; at 272.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Elevation Profile
Gently rolling terrain
1,641 ft49 ft
Total Climb
837 ft
Total Descent
2,071 ft
Highest Point
1,641 ft
~45 mi in
Elevation Range
1,593 ft
Notable High Points
1,641 ft at ~45 miles+574 ft prominence
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Medford, OR and Cascade Locks, OR, road signs point toward Seattle, Portland Airport and The Dalles.
Seattle
271.2 mi in|~5h 21m|via I 5
Portland Airport
272.2 mi in|~5h 23m
The Dalles
272.4 mi in|~5h 23m
Detours Along the Way
Tagged by where each one fits in your drive — first break, midpoint, final stretch.
Medford is a city in the Rogue Valley in Southern Oregon. The town is southern Oregon's largest and most diverse city, brimming with historical and cultural attractions while offering regional tax-free shopping. Medford is the county seat of Jackson County, and is the commercial and medical hub of southern Oregon. Its autumns tend to be very mild, and dry when compared to the rest of the state.
Top landmarks
•Barnum Hotel — historic hotel building in Medford, Oregon, USA
•Jackson County Courthouse — historic building in Medford, Oregon, United States
•James A. Redden Federal Courthouse — courthouse in Medford, Oregon, USA
Doable as a same-day drive at 6h 16m. Total distance: 315 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
6h 16m drive, plan rest stops for pacing.
Frequently Asked Questions
The longest stretch is about 270 miles on I 5. The full list of main roads is in the Roads section above.
Yes — we found about 29 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 Cascade Locks, 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 1 meaningful breaks. There are 29 rest areas along the route for bathroom stops.
The main spots that need attention: at 0.1 miles (West 4th Street): Navigation decision point; at 271.2 miles (I 5): Highway fork - watch signs carefully. Lane positioning matters here; at 272.2 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Not recommended in a single day. At 6.3 hours each way, a round trip means 12.6 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Cascade Locks, OR before the return drive.
