Traveling from Meridian to Ashton covers 341 miles across the Idaho landscape, a journey that typically takes 5 hours and 33 minutes. You will primarily navigate via the Vietnam Veterans Memorial Highway, I-86, and I-15 BUS. While this trip is feasible as a single-day push, it requires a steady pace to manage the distance comfortably. Budget approximately $54 for fuel to complete the trek between these two Mountain West locations. Whether you are heading out for business or a change of scenery, knowing the route remains consistent within the state of Idaho helps with your overall planning. Expect a straightforward drive that balances interstate speed with local road transitions.
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
170.5 miles from Meridian, ID
A natural place for your longest stop of the day
, about 2h 44m into the drive
.
Who Is This Route For?
Weekend Trip
Doable as a same-day drive at 5h 33m. Total distance: 341 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
5h 33m drive, comfortable solo distance.
Scenic Drive
Mixed drive route profile with national parks nearby.
Drive Character
This trip offers a mixed drive profile, blending the efficiency of major highways with the transition into more local road networks. You will spend roughly 32% of your time on highways, though the longest uninterrupted stretch spans 176.9 miles along the Vietnam Veterans Memorial Highway. Prepare for a shift in road personality as you move away from the interstate portions and navigate onto I-15 BUS toward your destination. The experience behind the wheel is functional and direct, providing a clear path through the region. Because the route is not purely interstate, you will experience a variety of driving conditions that keep the journey engaging.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 17 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Vietnam Veterans Memorial Highway is the longest continuous segment at about 176.9 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. You will hit about 9 points where you need to pay attention to lane position or signs. The trickiest moment comes around 1.4 miles in.
Driving Effort6/10
Moderate - straightforward overall, but long enough or busy enough to require pacing
Balances navigation complexity with total wheel time.
This drive requires moderate attention. Across 341 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
Where does it get tricky?
The main spots that need attention: at 1.4 miles: Multiple destination signs - pick the right one; at 1.8 miles (I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.4 miles (I 84; US 30 / Vietnam Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 9 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
5
1.4 mi into trip|~3m in
Take the ramp toward I 84 East, US 30 East, ID 55 East: Boise
Multiple destination signs - pick the right one
Toward I 84 East, US 30 East, ID 55 East: Boise
5
1.8 mi into trip|~3m in|I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway
Merge onto I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway
Merge point - match speed before joining. Lane positioning matters here
Use the straight / slight right lanes.
6
6.4 mi into trip|~9m in|I 84; US 30 / Vietnam Veterans Memorial Highway
Keep slight right at fork onto I 84; US 30 / Vietnam Veterans Memorial Highway
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight right lane.
5
241.4 mi into trip|~3h 51m in
Keep slight left at fork toward Idaho Falls
Highway fork - watch signs carefully
Toward Idaho Falls
6
288.4 mi into trip|~4h 35m in|US 20
Take the exit onto US 20 toward US 20 East, I 15: Rigby, West Yellowstone
Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one
Exit 119
Toward US 20 East, I 15: Rigby, West Yellowston...
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Meridian, ID and Ashton, ID, road signs point toward Idaho Falls and Yellowstone.
Idaho Falls
241.4 mi in|~3h 51m
Yellowstone
288.4 mi in|~4h 35m|via US 20
Main Roads
Road
Distance
Duration
Vietnam Veterans Memorial Highway
176.9 mi
2h 48m
I 86
62.7 mi
59m
I 15 BUS
46.3 mi
43m
Idaho Medal of Honor Highway
31.7 mi
34m
Yellowstone Highway
17.2 mi
18m
Rigby Highway
3.1 mi
3m
North Meridian Road
1.3 mi
2m
Main Street
0.3 mi
<1m
Longest stretch:
Vietnam Veterans Memorial Highway
— 176.9 mi, about 2h 48m
Turn-by-Turn Driving Directions
Step-by-step road directions between Meridian, ID and Ashton, ID.
1
Start on North Main Street
56 ft·5 sec·North Main Street
2
Turn right onto East Pine Avenue
528 ft·25 sec·East Pine Avenue
3
Turn left onto North Meridian Road
1.3 mi·2 min·North Meridian Road
4
Take the ramp
0.5 mi·31 sec
Toward I 84 East, US 30 East, ID 55 East: Boise
5
Merge onto I 84; US 30; ID 55
4.6 mi·5 min·Vietnam Veterans Memorial Highway
Use the straight / slight right lanes.
6
Keep slight right at fork onto I 84; US 30
172 mi·2 hr 42 min·Vietnam Veterans Memorial Highway
Use the slight right lane.
7
Continue on I 86; US 30
63 mi·59 min·I 86; US 30
8
Keep slight left at fork
0.6 mi·40 sec
Toward Idaho Falls
9
Merge onto I 15 BUS
46 mi·43 min·I 15 BUS
10
Take the exit onto US 20
0.3 mi·35 sec·US 20
Exit 119Toward US 20 East, I 15: Rigby, West Yellowstone
11
Continue on US 20
3.1 mi·3 min·Rigby Highway
Use the right lane.
12
Continue on US 20
15 mi·16 min·Idaho Medal of Honor Highway
13
Continue on US 20
17 mi·18 min·Yellowstone Highway
14
Continue on US 20
16 mi·17 min·Idaho Medal of Honor Highway
15
Take the exit
0.1 mi·16 sec
16
Turn straight onto ID-47
0.3 mi·32 sec·Main Street
17
Arrive at destination
ID-47
Trip Plan
Since you have 341 miles ahead of you, planning for at least one dedicated stop is essential to keep your energy levels up. Aim to depart early in the day to avoid peak traffic and ensure you reach Ashton with plenty of daylight remaining. Keep a close eye on your fuel gauge during the 176.9-mile stretch on the Vietnam Veterans Memorial Highway, as this is your longest period without significant exits. Being flexible with your timing is a major advantage for this trip, allowing you to adapt your pace as needed. Prioritize comfort by splitting the drive into manageable segments, ensuring you arrive at your destination refreshed rather than drained by the five-and-a-half-hour commute.
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 170.5 miles from Meridian, ID, or about 2h 44m into the drive.
The longest continuous stretch on this route runs about 176.9 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 75 miles or 1h 14m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 170.5 miles or 2h 44m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 4h 29m
Traffic, exits, and arrival timing usually matter more near Ashton, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Meridian, ID 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 Meridian, ID
This is one driving day of about 341 miles and 5h 33m.
Your first comfortable stop window is around 75 miles from Meridian, ID.
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 Vietnam Veterans Memorial Highway for about 176.9 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 170.5 mi from Meridian, ID
· 2h 44m into the drive
Place data sourced from public business listings. Hours and availability may vary.
National Parks Near This Route
Worth a detour if your schedule allows.
Hagerman Fossil Beds National Monument
National Monument
During the Pliocene, this place looked quite different. Lush wetlands, forests, and grasslands provided excellent habitat for a variety of animals. From fascinating, now-extinct creatures like the sab...
7 mi from route
~18 min detour
Free
near mile 105.8
Caution: Use Caution with "Fossil Beds Information" Signs
Caution: If You Can't Reach Us By Phone, Please Email Us
Park data from the National Park Service API. Alerts update every 2 hours.
Fuel & Cost
Regular Gas
$54.04 one way
$108.07 round trip
$4.03/gal25.4 MPG avg119 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.22
$56.64
$113.28
premium
$4.53
$60.83
$121.66
diesel
$5.61
$75.29
$150.58
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$54
Meals
$25–$50
Total
$79–$104
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 119.3 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $36 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
102.3
1
$35.81
$16.37
Efficient EV
85.3
0
$29.84
$13.64
EV Truck/SUV
136.4
1
$47.74
$21.82
Gas CO2
119 kg
EV CO2
40 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 Apr 15, 2026
Origin
Meridian, ID
Late night
in Meridian on Friday
Local time
3:54 AM
MDT
Current temp
62°F
Unavailable
Live forecast
Destination
Ashton, ID
Late night
in Ashton on Friday
Local time
3:54 AM
MDT
Current temp
69°F
Unavailable
Live 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.
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
7 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
5h 33m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Meridian, ID to Ashton, ID covers 341 miles and takes about 5h 33m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Vietnam Veterans Memorial Highway, I 86, I 15 BUS. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 170.5 miles from Meridian, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $54.04 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This drive requires moderate attention. Across 341 miles you will encounter 9 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: at 1.4 miles: Multiple destination signs - pick the right one; at 1.8 miles (I 84; US 30; ID 55 / Vietnam Veterans Memorial Highway): Merge point - match speed before joining. Lane positioning matters here; at 6.4 miles (I 84; US 30 / Vietnam Veterans Memorial Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Between Meridian, ID and Ashton, ID, road signs point toward Idaho Falls and Yellowstone.
Yes. Nearby national parks include Hagerman Fossil Beds National Monument.
How this page is built
Compiled and maintained by the Trip.ovh planning team at COD Solutions Oy (Helsinki). Each route is built from authoritative open government and mapping datasets rather than crowdsourced reviews. Distances and geometry come from
OSRM
over
OpenStreetMap.
Fuel cost uses
EIA
weekly regional averages.
National park proximity is from the
NPS API.
Pages are published only after passing our data-quality checks; our
methodology page
documents refresh cadence, editorial standards, and known limitations.
