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Trip from ‘Aiea, HI to Waianae, HI

Data updated 0 seconds ago

Drive Time

38m

Distance

22.9 mi

37 km

Drive Score

7/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$5

one way

EV Charging

Loading...

station data

Best Time to Leave

Save up to 9 min
4 AM
0h 36m ★
6 AM
0h 39m
8 AM
0h 45m
10 AM
0h 41m
12 PM
0h 41m
3 PM
0h 42m
5 PM
0h 45m
8 PM
0h 37m

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

Downtown ‘Aiea, HI, HI

‘Aiea, HI

Studio Lichtfang

census designated place in Honolulu County, Hawaii, United States

Waianae, HI

Wikimedia Commons

Trip Overview

Traveling from ‘Aiea to Waianae covers 22.9 miles of Oʻahu, making it a straightforward journey that easily fits into a single day. You can expect to spend about 38 minutes behind the wheel, navigating a mix of local roads and major thoroughfares. Because the trip is short and efficient, there is no need to plan for an overnight stay. With a fuel budget of approximately $5, this route is an affordable way to transition between these two Hawaiian locations. It is a practical, no-fuss drive that serves as a direct link across the region.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

11.5 miles from ‘Aiea, HI

A natural place for your longest stop of the day , about 16m into the drive .

Loading map...

Drive Character

This drive offers a mixed-road experience, balancing faster freeway segments with local highway travel. You will spend about 37% of your time on highways, utilizing the Queen Liliʻuokalani Freeway and Kamehameha Highway to make progress. The transition to Farrington Highway provides the longest uninterrupted stretch of the trip at 10.2 miles. Expect the personality of the road to shift as you move from the busier corridors near ‘Aiea toward the coastal feel of the Waianae area. Navigating these varied road types ensures the 38-minute duration stays engaging without becoming a monotonous grind.

Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 10 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Farrington Highway is the longest continuous segment at about 10.2 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 7 points where you need to pay attention to lane position or signs. The trickiest moment comes around 0.2 miles in near Honomanu Street.

Route Complexity 6/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

This drive requires moderate attention. Across 22.9 miles you will encounter 7 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 0.2 miles (Honomanu Street): Lane positioning matters here; at 0.3 miles (HI 99 / Kamehameha Highway): Lane positioning matters here; at 3.2 miles (Kamehameha Highway): Highway fork - watch signs carefully. Lane positioning matters here.

Critical Maneuvers

5 of 7 key points

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

6
0.2 mi into trip | ~0m in | Honomanu Street

Turn left onto Honomanu Street

Lane positioning matters here

Use the left lane.
5
0.3 mi into trip | ~1m in | HI 99 / Kamehameha Highway

Turn right onto HI 99 / Kamehameha Highway

Lane positioning matters here

Use the right lane.
6
3.2 mi into trip | ~5m in | Kamehameha Highway

Keep slight right at fork onto Kamehameha Highway

Highway fork - watch signs carefully. Lane positioning matters here

Use the right lane.
5
3.7 mi into trip | ~6m in

Keep slight left at fork toward I H1 West: Waianae

Highway fork - watch signs carefully

Toward I H1 West: Waianae
5
4.1 mi into trip | ~7m in | I H1 / Queen Liliʻuokalani Freeway

Merge onto I H1 / Queen Liliʻuokalani Freeway

Merge point - match speed before joining. Lane positioning matters here

Use the straight / slight right lanes.

Towns Mentioned on Route Signs

Based on OSRM destination-sign hints, not a full list of every settlement the road passes.

Between ‘Aiea, HI and Waianae, HI, road signs point toward I H1 West, I H2 North: Waianae, Mililani, Wahiawa and I H1 West: Waianae.

I H1 West

3.7 mi in | ~6m

I H2 North: Waianae

3.7 mi in | ~6m

Mililani

3.7 mi in | ~6m

Wahiawa

3.7 mi in | ~6m

I H1 West: Waianae

3.7 mi in | ~6m

Main Roads

Road Distance Duration
Farrington Highway 10.2 mi 20m
Queen Liliʻuokalani Freeway 8.6 mi 10m
Kamehameha Highway 3.3 mi 5m
Honomanu Street 0.2 mi <1m
Moanalua Road 0.1 mi <1m
Longest stretch: Farrington Highway — 10.2 mi, about 20m

Turn-by-Turn Driving Directions

Step-by-step road directions between ‘Aiea, HI and Waianae, HI.

1

Start on this road

338 ft · 24 sec · this road
2

Turn right onto Moanalua Road

0.1 mi · 21 sec · Moanalua Road
3

Turn left onto Honomanu Street

0.2 mi · 26 sec · Honomanu Street
Use the left lane.
4

Turn right onto HI 99

2.9 mi · 4 min · Kamehameha Highway
Use the right lane.
5

Keep slight right at fork onto Kamehameha Highway

0.5 mi · 47 sec · Kamehameha Highway
Use the right lane.
6

Take the ramp

196 ft · 4 sec
Toward I H1 West, I H2 North: Waianae, Mililani, Wahiawa
7

Keep slight left at fork

0.4 mi · 32 sec
Toward I H1 West: Waianae
8

Merge onto I H1

8.6 mi · 10 min · Queen Liliʻuokalani Freeway
Use the straight / slight right lanes.
9

Continue on HI 93

10 mi · 20 min · Farrington Highway
10

Arrive at destination

HI 93

Trip Plan

Since this is a quick 22.9-mile trip, you have plenty of flexibility in your departure timing, though staying mindful of local traffic patterns is always a good idea. You won't need to plan for formal rest stops given the short duration, allowing you to drive straight through to your destination. Keep your $5 fuel budget in mind, and ensure you have enough gas before leaving ‘Aiea, as you will be spending a significant portion of your time on the 10.2-mile stretch of Farrington Highway. Use the lack of required stops to your advantage by planning your arrival in Waianae exactly when you want it. This route is all about efficiency, so travel light and enjoy the ease of a drive that takes less than an hour.

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 11.5 miles from ‘Aiea, HI, or about 16m into the drive.
The longest continuous stretch on this route runs about 10.2 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 22.9 miles or 38m in

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

Halfway reset

Around 11.5 miles or 16m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 31m

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

Before You Leave

+

Open the route before leaving ‘Aiea, HI 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 ‘Aiea, HI

This is one driving day of about 22.9 miles and 38m.

Your first comfortable stop window is around 80 miles from ‘Aiea, HI.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on Farrington Highway for about 10.2 miles.

Where to Stop

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

Halfway Point

Midpoint

About 11.5 mi from ‘Aiea, HI · 16m into the drive

Mid-route town

Meal stop

‘Ewa Beach, HI

11 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Mā‘ili, HI

Fuel and coffee

A short stop after about 22.9 miles helps settle the day before fatigue starts building.

‘Ewa Beach, HI

Meal break

The midpoint is around 11.5 miles from ‘Aiea, HI, which is a good place for a longer meal and fuel stop.

Arriving in Waianae, HI

The final approach into Waianae, HI 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 Waianae, HI.

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

Fuel & Cost

Regular Gas

$4.96 one way

$9.93 round trip

$5.51/gal 25.4 MPG avg 8 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $5.79 $5.22 $10.44
premium $5.98 $5.39 $10.78
diesel $5.61 $5.06 $10.11

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$5

Meals

$25–$50

Total

$30–$55

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

Estimated CO2 emission: 8 kg one way. Prices: EIA weekly data, 2026-04-13.

Driving Electric?

About $2 in charging · 0 stops · 63% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 6.9 0 $2.40 $1.10
Efficient EV 5.7 0 $2.00 $0.92
EV Truck/SUV 9.2 0 $3.21 $1.47

Gas CO2

8 kg

EV CO2

3 kg (63% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

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 2 hours ago

Origin

‘Aiea, HI

Afternoon in ‘Aiea on Tuesday

Local time

1:44 PM

HST

Current temp

69°F

Unavailable

Live forecast

Destination

Waianae, HI

Afternoon in Waianae on Tuesday

Local time

1:44 PM

HST

Current temp

--

Unavailable

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.

Road read

38m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from ‘Aiea, HI to Waianae, HI covers 22.9 miles and takes about 38m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Farrington Highway, Queen Liliʻuokalani Freeway, Kamehameha Highway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 11.5 miles from ‘Aiea, HI. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $4.96 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 22.9 miles you will encounter 7 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 0.2 miles (Honomanu Street): Lane positioning matters here; at 0.3 miles (HI 99 / Kamehameha Highway): Lane positioning matters here; at 3.2 miles (Kamehameha Highway): Highway fork - watch signs carefully. Lane positioning matters here.
Between ‘Aiea, HI and Waianae, HI, road signs point toward I H1 West, I H2 North: Waianae, Mililani, Wahiawa and I H1 West: Waianae.

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