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Trip from Helena, MT to Sidney, MT

Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Apr 19, 2026 · Editorial standards

Drive Time

8h 51m

Distance

509.5 mi

820 km

Drive Score

8/10

Great drive

Same Day?

2-day trip

Fuel Cost

$81

one way

EV Charging

Excellent

24 DC fast

Best Time to Leave

Save up to 24 min
4 AM
8h 43m ★
6 AM
8h 51m
8 AM
9h 7m
10 AM
8h 57m
12 PM
8h 55m
3 PM
8h 58m
5 PM
9h 7m
8 PM
8h 47m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
Google Maps Waze Apple Maps
Download GPX
state capital of Montana, United States and seat of Lewis and Clark County

Helena, MT

Wikimedia Commons

city in and county seat of Richland County, Montana, United States

Sidney, MT

Wikimedia Commons

Trip Overview

Helena, MT to Sidney, MT is 509.5 miles and takes about 8h 51m via I 94, I 90, and MT 16, with a fuel budget near $81 and enough daylight to finish in a day. This long-haul drive stays within the Mountain West region, connecting two points in Montana. You'll be on major interstates for most of the trip, making it a straightforward, if lengthy, transit. Consider this route if you need to cover a significant distance efficiently. With a recommended two days for the trip, you can break up the drive comfortably.

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

254.8 miles from Helena, MT

A natural place for your longest stop of the day , about 4h 28m into the drive .

Main Roads

Road Distance Duration
I 94 212.2 mi 3h 32m
I 90 180.8 mi 3h 2m
MT 16 49 mi 56m
US 12 34.1 mi 40m
US 287 27.6 mi 29m
South Central Avenue 2.5 mi 2m
11th Avenue 1.4 mi 3m
Prospect Avenue 1.3 mi 2m
Longest stretch: I 94 — 212.2 mi, about 3h 32m

Turn-by-Turn Driving Directions

Step-by-step road directions between Helena, MT and Sidney, MT.

1

Start on I 15 Business

163 ft · 8 sec · Cruse Avenue
2

Turn left onto I 15 Business

1.4 mi · 3 min · 11th Avenue
Use the straight / left / right lanes.
3

Turn straight onto I 15 Business; US 12

1.3 mi · 2 min · Prospect Avenue
4

Continue on US 12; US 287

3.6 mi · 5 min · US 12; US 287
5

Continue on US 12; US 287

0.3 mi · 26 sec · US 12; US 287
6

Continue on US 12; US 287

30 mi · 34 min · US 12; US 287
Use the straight lane.
7

Continue on US 287

2.3 mi · 2 min · US 287
Use the straight lane.
8

Continue on US 287

1.2 mi · 1 min · US 287
Use the straight lane.
9

Continue on US 287

1.4 mi · 1 min · US 287
Use the straight lane.
10

Continue on US 287

23 mi · 24 min · US 287
Use the straight lane.
11

Take the exit

0.3 mi · 33 sec
Toward I 90 East: Billings
12

Merge onto I 90

181 mi · 3 hr 2 min · I 90
13

Keep slight left at fork onto I 94

212 mi · 3 hr 32 min · I 94
Toward I 94 East: Bismark
14

Take the exit

0.3 mi · 38 sec
Toward MT 16: Glendive, Sidney
15

Turn left onto MT 16

49 mi · 56 min · MT 16
16

Enter roundabout onto MT 16; MT 200

130 ft · 1 sec · South Central Avenue
17

Continue on MT 16; MT 200

2.5 mi · 2 min · South Central Avenue
18

Arrive at destination

MT 16; MT 200

Trip Plan

Given the 8-hour-plus drive time, this route is best split over two days. Aim to depart Helena in the morning to make good progress. You'll have two recommended stops along the way to stretch your legs and refuel. Keep an eye on your fuel levels, especially during the longest stretch on I 94, as services can be spread out. Planning your overnight stay around the halfway point will make the drive more relaxed and enjoyable.

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 254.8 miles from Helena, MT, or about 4h 28m into the drive.
The longest continuous stretch on this route runs about 212.2 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 112 miles or 2h 4m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 254.8 miles or 4h 28m 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 254.8 miles or 4h 28m

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 43m

Traffic, exits, and arrival timing usually matter more near Sidney, MT than in the middle of the route.

Before You Leave

+

Open the route before leaving Helena, MT 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 Helena, MT

Aim for roughly 255 miles and 4.4 hours of wheel time on this day.

Day 2

Finish the approach into Sidney, MT

Aim for roughly 255 miles and 4.4 hours of wheel time on this day.

Your first comfortable stop window is around 112 miles from Helena, MT.
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 I 94 for about 212.2 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

city and the county seat of Park County, Montana, United States

First major stop

Coffee and fuel

Livingston, MT

168 mi into the route

Best for: Coffee, fuel, and an easy first stretch

This is a natural early stop once the first hours of the drive are behind you.

city in and county seat of Rosebud County, Montana, United States

Second major stop

Overnight candidate

Forsyth, MT

336 mi into the route

Best for: Hotel check-in, dinner, and a fresh start

This lines up well with a realistic day-end stop if you are breaking the drive into stages.

Find hotels in Forsyth, MT

Overnight Options

Night 1

Billings, MT

255 mi · about 4.4h in

A practical overnight split lands near Billings, MT after about 255 miles or 4.4 hours of driving.

Find hotels

Pacing Suggestions

Livingston, MT

Fuel and coffee

A short stop after about 112 miles helps settle the day before fatigue starts building.

Lockwood, MT

Meal break

The midpoint is around 254.8 miles from Helena, MT, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before I 94 if your tank is already low. That segment runs about 212.2 miles.

Overnight split

Hotel stop

For a steadier pace, wrap day one after about 255 miles or 4.4 hours on the road.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

Nearby Places

Restaurants, cafes, gas stations and more along your route.

Top Restaurant

Helena Hokkaido Ramen & Sushi Bar

4.4 ★ ★ ★ ★ ☆

Helena, Montana

Near the start, right off the route

0.2 mi from route ~1 min detour $20 to $30

Hours: 11 am–2:30 pm

+14065021235

Visit website

No Sweat Cafe

4.4 ★ ★ ★ ★ ☆

Helena, Montana

0.1 mi

The Union Restaurant | Old Salt Co-op

4.4 ★ ★ ★ ★ ☆

Helena, Montana

0.2 mi

Top Coffee Stop

Montago Coffee

4.9 ★ ★ ★ ★ ★

Helena, Montana

Near the start, right off the route

0.3 mi from route ~1 min detour $1 to $10

Hours: 7 am–4 pm

+14064013446

Visit website

The Coffee Stop

4.4 ★ ★ ★ ★ ☆

Sidney, Montana

0.1 mi

SheBrews Coffee on Custer

4.6 ★ ★ ★ ★ ★

Helena, Montana

1.8 mi

Helena Hokkaido Ramen & Sushi Bar

4.4 ★ ★ ★ ★ ☆

Near the start, right off the route

0.2 mi from route ~1 min detour $20 to $30

Helena, Montana

Hours: 11 am–2:30 pm

+14065021235

Visit website

No Sweat Cafe

4.4 ★ ★ ★ ★ ☆

Near the start, right off the route

0.1 mi from route $10 to $20

Helena, Montana

Hours: 7 am–2 pm

+14064426954

Visit website

The Union Restaurant | Old Salt Co-op

4.4 ★ ★ ★ ★ ☆

Near the start, right off the route

0.2 mi from route

Helena, Montana

Hours: 4–9 pm

+14064220515

Visit website

Cafe Zydeco

4.6 ★ ★ ★ ★ ★

Near the start, right off the route

0.7 mi from route ~2 min detour $10 to $20

Helena, Montana

Hours: 11 am–7 pm

+14064497032

Visit website

Rise N Shine Cafe

4.6 ★ ★ ★ ★ ★

Near the start, right off the route

0.7 mi from route ~2 min detour $10 to $20

Helena, Montana

Hours: 6:30 am–2:30 pm

+14064496666

Visit website

1889 Coffee House

4.5 ★ ★ ★ ★ ★

Near the start, short detour

1.3 mi from route ~3 min detour $10 to $20

Helena, Montana

Hours: 6 am–7 pm

+14065021889

Visit website

Melaque Mexican Restaurant

4.5 ★ ★ ★ ★ ★

Near the start, short detour

1.3 mi from route ~3 min detour $10 to $20

Helena, Montana

Hours: 11 am–9 pm

+14064221695

Visit website

Shellie's Country Cafe

4.5 ★ ★ ★ ★ ★

Near the start, short detour

1.6 mi from route ~4 min detour $10 to $20

Helena, Montana

Hours: Open 24 hours

+14064420033

Visit website

Montago Coffee

4.9 ★ ★ ★ ★ ★

Near the start, right off the route

0.3 mi from route ~1 min detour $1 to $10

Helena, Montana

Hours: 7 am–4 pm

+14064013446

Visit website

The Coffee Stop

4.4 ★ ★ ★ ★ ☆

Near the end, right off the route

0.1 mi from route $1 to $10 mile 509.5

Sidney, Montana

Hours: 6 am–6 pm

SheBrews Coffee on Custer

4.6 ★ ★ ★ ★ ★

Near the start, short detour

1.8 mi from route ~4 min detour $1 to $10

Helena, Montana

Hours: 5 am–7 pm

+14069961015

Visit website

Norm's Cafe

5.0 ★ ★ ★ ★ ★

Near the start, short detour

1 mi from route ~3 min detour

Helena, Montana

Hours: 7 am–4 pm

Visit website

Queen City Coffee

5.0 ★ ★ ★ ★ ★

Near the start, short detour

1.2 mi from route ~3 min detour

Helena, Montana

Hours: 6:30 am–2 pm

+14064407880

Visit website

The Driftwood

4.6 ★ ★ ★ ★ ★

Near the start, short detour

1.7 mi from route ~4 min detour $1 to $10

Helena, Montana

Hours: 6 am–12 pm

The Beanery Coffee Co.

4.8 ★ ★ ★ ★ ★

Around the midpoint, short detour

3 mi from route ~7 min detour $1 to $10 mile 254.8

Huntley, Montana

Hours: 5:30 am–4 pm

+14068503900

ChargePoint Charging Station

5.0 ★ ★ ★ ★ ★

Near the start, short detour

1.4 mi from route ~3 min detour

Helena, Montana

Hours: Open 24 hours

+18887584389

Visit website

Tesla Supercharger

4.9 ★ ★ ★ ★ ★

Near the start, short detour

2.2 mi from route ~6 min detour

Helena, Montana

Hours: Open 24 hours

Visit website

Electrify America Charging Station

4.2 ★ ★ ★ ★ ☆

Near the start, short detour

2.1 mi from route ~5 min detour

Helena, Montana

Hours: Open 24 hours

+18336322778

Visit website

ChargePoint Charging Station

Near the start, right off the route

0.5 mi from route ~1 min detour

Helena, Montana

Hours: Open 24 hours

+18887584389

Visit website

Rest Area

0 mi from route

Rest Area

0 mi from route

Rest Area

0 mi from route

Rest Area

0.1 mi from route

TA

0.1 mi from route

Rest Area

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Three Forks Rest Area

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.1 mi from route

Pilot Travel Center

0.2 mi from route

ExplorationWorks

4.5 ★ ★ ★ ★ ★

Near the start, right off the route

0.3 mi from route ~1 min detour

Helena, Montana

Hours: 10 am–5 pm

+14064571800

Visit website

Escape Helena

4.8 ★ ★ ★ ★ ★

Near the start, right off the route

0.5 mi from route ~1 min detour

Helena, Montana

Hours: 1–8:30 pm

+14064220321

Visit website

Last Chance Tours

4.8 ★ ★ ★ ★ ★

Near the start, short detour

1 mi from route ~3 min detour

Helena, Montana

Hours: 8 am–3 pm

+14064421023

Visit website

Place data sourced from public business listings. Hours and availability may vary.

Heads-up: tricky spots

5 of 7

5 decision points cluster between mile 0 and 507 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.

5
0 mi into trip | ~0m in | I 15 Business / 11th Avenue

Turn left onto I 15 Business / 11th Avenue

Lane positioning matters here

Use the straight / left / right lanes.
6
64.5 mi into trip | ~1h 16m in

Take the exit toward I 90 East: Billings

Exit ramp - move to the correct lane early

Toward I 90 East: Billings
5
245.6 mi into trip | ~4h 18m in | I 94

Keep slight left at fork onto I 94 toward I 94 East: Bismark

Highway fork - watch signs carefully

Toward I 94 East: Bismark
5
457.7 mi into trip | ~7h 51m in

Take the exit toward MT 16: Glendive, Sidney

Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one

Toward MT 16: Glendive, Sidney
4
507 mi into trip | ~8h 48m in | MT 16; MT 200 / South Central Avenue

Enter roundabout onto MT 16; MT 200 / South Central Avenue

Roundabout - know your exit number before entering

Fuel & Cost

Regular Gas

$80.74 one way

$161.48 round trip

$4.03/gal 25.4 MPG avg 178 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.22 $84.63 $169.26
premium $4.53 $90.89 $181.78
diesel $5.61 $112.49 $224.98

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$81

Hotel (1n)

$80–$140

Meals

$50–$100

Total

$211–$321

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 178.3 kg one way. Prices: EIA weekly data, 2026-04-13.

EV Charging Along Route

24 DC fast chargers · Coverage: excellent

Town Pump Travel Center - Tesla Supercharger

Billings, MT

Tesla

12 DCFC

Super1 Foods - Tesla Supercharger

Helena, MT

Tesla

8 DCFC

Town Pump Travel Center - Tesla Supercharger

Belgrade, MT

Tesla

8 DCFC

Bozeman, MT

Bozeman, MT

RIVIAN_ADVENTURE

8 DCFC

Fairfield Inn & Suites - Tesla Supercharger

Laurel, MT

Tesla

8 DCFC

Cenex - Tesla Supercharger

Miles City, MT

Tesla

8 DCFC

Holiday Inn Express - Tesla Supercharger

Glendive, MT

Tesla

8 DCFC

Target T1282 (Helena, MT)

Helena, MT

Electrify America

6 DCFC

Tesla: 9 Electrify America: 5 EV Connect: 3 ChargePoint Network: 2 Blink Network: 2 RIVIAN_ADVENTURE: 1 NAYAX_ENERGY: 1 IN_CHARGE: 1

Station data from NREL Alternative Fuel Stations database.

Driving Electric?

About $54 in charging · 1 stop · 66% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 152.9 1 $53.50 $24.46
Efficient EV 127.4 1 $44.58 $20.38
EV Truck/SUV 203.8 2 $71.33 $32.61

Gas CO2

178 kg

EV CO2

60 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 19, 2026

Origin

Helena, MT

Late night in Helena on Sunday

Local time

1:55 AM

MDT

Current temp

33°F

Partly Cloudy

WSW 2 to 10 mph 0% chance Live forecast

Destination

Sidney, MT

Late night in Sidney on Sunday

Local time

1:55 AM

MDT

Current temp

70°F

Unavailable

Live forecast

71°F

Livingston, MT

168 mi in

76°F

Forsyth, MT

336 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.

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

37 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 51m 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.

What kind of drive is this?

This is a 99% highway drive, meaning you'll spend almost all of your time on major interstates. The longest stretch without a significant change in road type is 212.2 miles on I 94. Expect mostly rural cruising with fewer exits than you'd find in more populated areas. You'll transition to MT 16 towards the end of your drive.

99% highway — fuel and pacing are the main things to plan.
18 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 212.2 mi on I 94.

How Hard Is This Drive?

4/10

This is a straightforward highway drive that stays mostly on I 94 and I 90. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near I 15 Business / 11th Avenue.

Driving Effort 4/10

Easy - simple navigation with a manageable amount of wheel time

Balances navigation complexity with total wheel time.

The route itself is not hard, but at 8h 51m, endurance matters. Plan breaks every 2-3 hours. The 7 decision points are all manageable with basic attention.

Where does it get tricky?

The main spots that need attention: near the start (I 15 Business / 11th Avenue): Lane positioning matters here; at 64.5 miles: Exit ramp - move to the correct lane early; at 245.6 miles (I 94): Highway fork - watch signs carefully.

About the Cities

Starting in Helena, MT

Full guide →

Helena is the state capital of Montana, in the Western Central part of the state. Visitors come to see Helena’s historic Last Chance Gulch, and its mansion district once home to Helena’s gold mining millionaires. The city has running or biking 75 mi (121 km) of trails and opportunities for rafting the mighty Missouri River or fly-fishing.

City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).

Who Is This Route For?

Family Friendly

Moderate complexity with 2 natural rest stops along the way.

Solo Traveler

8h 51m drive, plan rest stops for pacing.

First-Time Driver

Mostly highway driving (99%). Straightforward navigation.

Frequently Asked Questions

The longest stretch is about 212.2 miles on I 94. 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 255 miles on day one.

We did not find dedicated rest areas on this route. For a drive this long, plan bathroom and stretch breaks around gas stations, fast-food stops, or small-town downtowns — check the Nearby Places section for options.

It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Sidney, MT 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. Dedicated rest areas are limited, so plan gas or food stops as your bathroom breaks.

Mostly yes along the main roads, but rural stretches through MT can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.

The main spots that need attention: near the start (I 15 Business / 11th Avenue): Lane positioning matters here; at 64.5 miles: Exit ramp - move to the correct lane early; at 245.6 miles (I 94): Highway fork - watch signs carefully.

Not recommended in a single day. At 8.9 hours each way, a round trip means 17.7 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Sidney, MT before the return drive.

How this page is built

Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, NREL for EV charging, and NPS for national parks. See our methodology for refresh cadence and limitations.

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