Trip from Post Falls, ID to Aberdeen, ID

Drive Time

9h 18m

Distance

548 mi

882 km

Drive Score

8/10

Great drive

Same Day?

2-day trip

Fuel Cost

$87

one way

EV Charging

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station data

Best Time to Leave

Save up to 25 min
4 AM
9h 10m ★
6 AM
9h 18m
8 AM
9h 35m
10 AM
9h 24m
12 PM
9h 22m
3 PM
9h 25m
5 PM
9h 34m
8 PM
9h 13m

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

Downtown Post Falls, ID, ID

Post Falls, ID

Daniil Komov

Downtown Aberdeen, ID, ID

Aberdeen, ID

ㅤ quang vinh ㅤ

Trip Overview

The drive from Post Falls, ID to Aberdeen, ID covers 548 miles and takes about 9h 18m behind the wheel. It usually feels better as a 2-day road trip than as one long push.

The route leans on I 90, I 15, West Highway 39 for much of the mileage, and the overall profile is long-distance drive. The longest uninterrupted segment is about 285.1 miles on I 90. At current regular gas prices, budget about $86.84 one way before food or hotel costs.

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

274 miles from Post Falls, ID

A natural place for your longest stop of the day , about 4h 38m into the drive .

Drive Character

At 548 miles and 9h 18m of driving, this is a route where fuel stops, weather, and timing matter more than any single turn. The main roads are I 90 and I 15.

Most of the miles stay on highways, which makes pacing and fuel planning easier than turn-by-turn city driving.
There are about 20 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
I 90 is the longest continuous segment at about 285.1 miles.

Elevation Profile

Gently rolling terrain

4,416 ft 2,179 ft

Total Climb

2,237 ft

Total Descent

1,720 ft

Highest Point

4,416 ft

~68.5 mi in

Elevation Range

2,237 ft

Notable High Points

4,416 ft at ~68.5 miles +1,439 ft prominence

How Hard Is This Drive?

This is a straightforward highway drive that stays mostly on I 90 and I 15. There are only a few real navigation decisions along the way. The trickiest moment comes around 0.2 miles in near North Spokane Street.

Route Complexity 4/10

Easy - simple navigation with a manageable amount of wheel time

The route itself is not hard, but at 9h 18m, endurance matters. Plan breaks every 2-3 hours. The 9 decision points are all manageable with basic attention.

Where does it get tricky?

The main spots that need attention: at 0.2 miles (North Spokane Street): Navigation decision point; at 286 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 510.5 miles (I 15 Business; US 26): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.

Critical Maneuvers

5 of 9 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

4
0.2 mi into trip | ~0m in | North Spokane Street

Turn right onto North Spokane Street

Navigation decision point

5
286 mi into trip | ~4h 50m in

Take the exit toward I 15 South: Dillon, Idaho Falls

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

Toward I 15 South: Dillon, Idaho Falls
5
510.5 mi into trip | ~8h 21m in | I 15 Business; US 26

Take the exit onto I 15 Business; US 26 toward I 15 Business, US 26, ID 39: Blackfoot, Aberdeen

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

Toward I 15 Business, US 26, ID 39: Blackfoot,...
4
510.8 mi into trip | ~8h 22m in | US 26

Turn right onto US 26

Navigation decision point

4
548 mi into trip | ~9h 18m in | East Central Street

Turn left onto East Central Street

Navigation decision point

Towns Along This Route

On the drive from Post Falls, ID to Aberdeen, ID, road signs begin pointing toward Idaho Falls along the way.

Idaho Falls

286 mi in | ~4h 50m

Main Roads

Road Distance Duration
I 90 285.1 mi 4h 47m
I 15 224 mi 3h 30m
West Highway 39 12.1 mi 17m
West 800 South 7.5 mi 11m
West State Highway 39 6.2 mi 9m
South 2600 West 4.9 mi 7m
State Highway 39 3.2 mi 4m
South 2700 West 2.6 mi 3m
Longest stretch: I 90 — 285.1 mi, about 4h 47m

Turn-by-Turn Driving Directions

Step-by-step road directions between Post Falls, ID and Aberdeen, ID.

1

Start on West 10th Avenue

0.2 mi · 40 sec · West 10th Avenue
2

Turn right onto North Spokane Street

0.4 mi · 1 min · North Spokane Street
3

Turn left

0.4 mi · 51 sec
4

Merge onto I 90

285 mi · 4 hr 47 min · I 90
5

Take the exit

0.5 mi · 1 min
Toward I 15 South: Dillon, Idaho Falls
6

Merge onto I 15

224 mi · 3 hr 30 min · I 15
7

Take the exit onto I 15 Business; US 26

0.3 mi · 39 sec · I 15 Business; US 26
Toward I 15 Business, US 26, ID 39: Blackfoot, Aberdeen
8

Turn right onto US 26

0.2 mi · 24 sec · US 26
9

Turn left onto ID 39

5.5 mi · 8 min · West State Highway 39
10

Continue on ID 39

12 mi · 17 min · West Highway 39
11

Continue on ID 39

7.5 mi · 11 min · West 800 South
12

Continue on ID 39

1.9 mi · 2 min · State Highway 39
13

Continue on ID 39

4.9 mi · 7 min · South 2600 West
14

Turn straight onto ID 39

1.3 mi · 1 min · State Highway 39
15

Continue on ID 39

0.2 mi · 15 sec · 2700 West Road
16

Continue on ID 39

2.6 mi · 3 min · South 2700 West
17

Continue on ID 39

0.7 mi · 1 min · West State Highway 39
18

Continue on ID 39

0.4 mi · 41 sec · North Main Street
19

Turn left onto East Central Street

116 ft · 5 sec · East Central Street
20

Arrive at destination

East Central Street

Trip Plan

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 274 miles from Post Falls, ID, or about 4h 38m into the drive.
The longest continuous stretch on this route runs about 285.1 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 121 miles or 2h 3m in

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

Halfway reset

Around 274 miles or 4h 38m 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 274 miles or 4h 38m

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 8h

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

Before You Leave

+

Open the route before leaving Post Falls, 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.

+

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 Post Falls, ID

Aim for roughly 274 miles and 4.7 hours of wheel time on this day.

Day 2

Finish the approach into Aberdeen, ID

Aim for roughly 274 miles and 4.7 hours of wheel time on this day.

Your first comfortable stop window is around 121 miles from Post Falls, ID.
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 90 for about 285.1 miles.

Where to Stop

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

Halfway Point

Midpoint

About 274 mi from Post Falls, ID · 4h 38m into the drive

Downtown Thompson Falls, MT, MT

First major stop

Coffee and fuel

Thompson Falls, MT

181 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.

Downtown Deer Lodge, MT, MT

Second major stop

Overnight candidate

Deer Lodge, MT

362 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 Deer Lodge, MT

Overnight Options

Night 1

Missoula, MT

274 mi · about 4.7h in

A practical overnight split lands near Missoula, MT after about 274 miles or 4.7 hours of driving.

Find hotels

Pacing Suggestions

Thompson Falls, MT

Fuel and coffee

A short stop after about 121 miles helps settle the day before fatigue starts building.

Butte, MT

Meal break

The midpoint is around 274 miles from Post Falls, ID, which is a good place for a longer meal and fuel stop.

Before the longest stretch

Fuel check

Top up before I 90 if your tank is already low. That segment runs about 285.1 miles.

Overnight split

Hotel stop

For a steadier pace, wrap day one after about 274 miles or 4.7 hours on the road.

Arriving in Aberdeen, ID

The final approach into Aberdeen, ID usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Aberdeen, ID.

On a multi-day trip, keep the last day a little lighter so you reach Aberdeen, ID with some flexibility left in the schedule.

After long uninterrupted mileage, take five minutes before the last urban segment to reset and refocus on exits, merges, and city traffic.

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

Fuel & Cost

Regular Gas

$86.84 one way

$173.68 round trip

$4.03/gal 25.4 MPG avg 192 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.23 $91.28 $182.57
premium $4.53 $97.71 $195.42
diesel $5.64 $121.75 $243.49

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$87

Hotel (1n)

$80–$140

Meals

$50–$100

Total

$217–$327

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

Estimated CO2 emission: 191.7 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $58 in charging · 2 stops · 67% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 164.4 2 $57.54 $26.30
Efficient EV 137 1 $47.95 $21.92
EV Truck/SUV 219.2 2 $76.72 $35.07

Gas CO2

192 kg

EV CO2

64 kg (67% less)

Plan for 2 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.

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 data refreshed 15 hours ago

Origin

Post Falls, ID

Afternoon in Post Falls on Sunday

Local time

4:49 PM

PDT

Current temp

33°F

Unavailable

Live forecast

Destination

Aberdeen, ID

Evening in Aberdeen on Sunday

Local time

5:49 PM

MDT

Current temp

36°F

Mostly Cloudy

NNE 6 mph 9% chance 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.

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

1 hour later

The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.

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

9h 18m 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.

Frequently Asked Questions

The drive from Post Falls, ID to Aberdeen, ID covers 548 miles and takes about 9h 18m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are I 90, I 15, West Highway 39. Expect a mix of highway and local road driving.
Consider an overnight stop or starting very early.
Yes. This route is usually more comfortable as a 2-day drive. A sensible stopping point is after roughly 274 miles on day one.
The midpoint is about 274 miles from Post Falls, ID. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $86.84 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Start early — leave by 6-7 AM to arrive at a reasonable hour. This is a long drive — plan for a morning departure or consider splitting it into two days.
Plan about 2 meaningful breaks for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
The route itself is not hard, but at 9h 18m, endurance matters. Plan breaks every 2-3 hours. The 9 decision points are all manageable with basic attention.
The main spots that need attention: at 0.2 miles (North Spokane Street): Navigation decision point; at 286 miles: Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one; at 510.5 miles (I 15 Business; US 26): Exit ramp - move to the correct lane early. Multiple destination signs - pick the right one.
On the drive from Post Falls, ID to Aberdeen, ID, road signs begin pointing toward Idaho Falls along the way.
Gently rolling terrain. The route ranges from 2,179 ft to 4,416 ft elevation with about 2,237 ft of total climbing. There is 1 notable high point along the way.

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Return Trip

Aberdeen, ID to Post Falls, ID

Plan the drive back the other way.

548.9 mi 9h 20m

Explore more options from Post Falls, ID or browse trips ending in Aberdeen, ID.

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