How far is Ainaloa, HI from Kapa‘a, HI?

The estimated driving distance from Ainaloa, HI to Kapa‘a, HI is about 389.7 miles (627.1 km), with a travel time of about 06h 49m by car.

  • This page is using an estimated road distance while the full route geometry is refreshed.
  • The straight-line flight distance is about 330.2 miles (531.4 km).
  • For a round trip, plan for roughly 13h 39m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM HST.
Road route is being refreshed. This page currently uses an estimated driving distance until a routing provider returns the full road geometry.
Trip Tools

Reverse, save, or send this route

This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
389.66 mi
06h 49m · estimated
Flight
330.22 mi
531.44 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from Ainaloa.

Flight Distance

Direct air line
330.22 mi
Kilometers
531.44 km
Flight Time
00h 39m

Driving Distance

Estimated road route
389.66 mi
Estimated
Kilometers
627.1 km
Drive Time
06h 49m

Gas Cost Calculator

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Drive time stays fixed at 06h 49m.

Arrival Snapshot
Arrive in Kapa‘a
Thu, Apr 23, 6:02 AM HST
Return by in Ainaloa
Thu, Apr 23, 12:52 PM HST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Ainaloa
2026-04-22T23:12
Arrive Kapa‘a
Thu, Apr 23, 6:02 AM HST
Route Timing
06h 49m
One way by road
Best Departure Window
6:00 AM to 7:30 AM HST
Treat this as a longer travel day
Arrive between
12:50 PM to 2:20 PM HST

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
10:20 PM HST
Keeps a same-day return open with about 08h 00m at the destination.
Back in Ainaloa
8:00 PM HST
Overnight-style route

You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Lanai City
HI

City in Maui County, Hawaii, United States of America

From Ainaloa
165.1 mi
03h 24m
To Kapa‘a
224.6 mi
03h 24m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
78°F
Wednesday

Isolated Rain Showers then Mostly Sunny

Starts
Wed, Apr 22 6:00 AM HST
Wind
5 to 12 mph NNE
Destination
83°F
Wednesday

Scattered Rain Showers

Starts
Wed, Apr 22 6:00 AM HST
Wind
8 mph NE

Driving Route Map

Road route is being refreshed. This page currently uses an estimated driving distance.

Turn-by-Turn Driving Directions

Step-by-step road directions between Ainaloa and Kapa‘a.

Turn-by-turn directions will appear after the road route is refreshed. The current distance is an estimate.

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
06h 49m
Overnight route
Same-Day Return
13h 40m
Round-trip wheel time
Road vs Air
+59.5 mi
330.2 mi direct line
Halfway Stop
Lanai City
03h 24m from Ainaloa
Leave By
10:20 PM HST
Overnight-style route
Weather Watch

Isolated Rain Showers then Mostly Sunny leaving Ainaloa and Scattered Rain Showers near Kapa‘a.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Ainaloa to Kapa‘a?

The road trip is about 389.7 miles (627.1 km) and usually takes 06h 49m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Lanai City is a useful midpoint, sitting about 165.1 miles from Ainaloa and 224.6 miles from Kapa‘a.

How much longer is the road route than the straight-line distance?

The direct path is about 330.2 miles (531.4 km), while the road route adds roughly 59.5 extra miles because roads do not follow the straight air line.

When is the best time to leave for this route?

A good departure window is usually 6:00 AM to 7:30 AM HST. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $68.08 one way or $136.15 round trip. Estimated CO2 is about 122.2 kg one way.

What should you check before leaving?

Before you leave, expect Isolated Rain Showers then Mostly Sunny around Ainaloa and Scattered Rain Showers near Kapa‘a.

Flight Path Map

This map shows the direct air route between Ainaloa and Kapa‘a. Straight-line distance: 330.22 mi (531.44 km).

Ainaloa

#1 Ainaloa

Census designated place in Hawaii, United States

Population2,965
Coordinates19.5269400, -154.9930600
Altitude215
CountryUnited States
Kapa‘a

#2 Kapa‘a

Unincorporated census-designated place (CDP) in Kauaʻi County, Hawaiʻi, United States

Population10,699
Coordinates22.0752100, -159.3189500
Altitude6
CountryUnited States
Start: Ainaloa (-154.99306, 19.52694)
End: Kapa‘a (-159.31895, 22.07521)

Estimated Travel Time

Distance: 627 km by road

SpeedTime
30 mph (48.3 km/h)12h 59m
40 mph (64.37 km/h)09h 44m
50 mph (80.47 km/h)07h 47m
60 mph (96.56 km/h)06h 29m
70 mph (112.65 km/h)05h 34m
80 mph (129 km/h)04h 51m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
13.75 gal
52.05 L · about $68.08
Round trip
$136.15
27.5 gal · 104.1 L
Estimated CO2
122.2 kg one way
Round trip: 244.4 kg / 539 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.95 $68.08 $136.15
Mid-grade $5.34 $73.40 $146.80
Premium $5.57 $76.53 $153.07
Diesel $6.37 $87.53 $175.07

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in Hawaii · Apr 23, 2026

There is no time difference between Ainaloa and Kapa‘a. The current time is 23:12:36.

Distance to Other Cities

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.