How far is Saint Anthony, ID from Nampa, ID?

The driving distance from Saint Anthony, ID to Nampa, ID is about 313 miles (503.8 km), with a travel time of about 05h 16m by car.

  • The straight-line flight distance is about 245.3 miles (394.8 km).
  • For a round trip, plan for roughly 10h 32m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 AM MDT.
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
313.02 mi
05h 16m
Flight
245.34 mi
394.84 km direct

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

Learn Distance

Choose another destination from Saint Anthony.

Flight Distance

Direct air line
245.34 mi
Kilometers
394.84 km
Flight Time
00h 29m

Driving Distance

Road route
313.02 mi
Kilometers
503.76 km
Drive Time
05h 16m

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 05h 16m.

Arrival Snapshot
Arrive in Nampa
Tue, May 26, 10:18 AM MDT
Return by in Saint Anthony
Tue, May 26, 3:34 PM MDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Saint Anthony
2026-05-26T05:02
Arrive Nampa
Tue, May 26, 10:18 AM MDT
Route Timing
05h 16m
One way by road
Best Departure Window
6:00 AM to 8:00 AM MDT
Leave early for more breathing room
Arrive between
11:16 AM to 1:16 PM MDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
6:28 AM MDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Saint Anthony
9:00 PM MDT
Early departure recommended

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
Burley
ID

City in Idaho

From Saint Anthony
168.7 mi
02h 38m
To Nampa
144.3 mi
02h 38m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
78°F
Tuesday

Mostly Sunny then Chance Showers And Thunderstorms

Starts
Tue, May 26 6:00 AM MDT
Wind
7 to 16 mph SSE
Destination
64°F
Tuesday

Mostly Sunny

Starts
Tue, May 26 6:00 AM MDT
Wind
16 to 20 mph NW

Driving Route Map

The map below follows the saved road route between Saint Anthony and Nampa.

Turn-by-Turn Driving Directions

Step-by-step road directions between Saint Anthony and Nampa.

  1. 1

    Start on East Main Street

    27 m · 11 sec · East Main Street

  2. 2

    Turn left onto South Bridge Street

    1202 ft · 26 sec · South Bridge Street

  3. 3

    Take the ramp right

    2095 ft · 51 sec

  4. 4

    Merge slight left onto Idaho Medal of Honor Highway

    1.9 mi · 2 min · Idaho Medal of Honor Highway

  5. 5

    Continue on Yellowstone Highway

    17.2 mi · 18 min · Yellowstone Highway

  6. 6

    Continue on Idaho Medal of Honor Highway

    15.4 mi · 16 min · Idaho Medal of Honor Highway

  7. 7

    Continue on Rigby Highway

    3.1 mi · 4 min · Rigby Highway

  8. 8

    Merge slight right onto Grandview Drive

    575 ft · 14 sec · Grandview Drive

  9. 9

    Take the exit slight right toward I 15 South: Arco, Pocatello

    1466 ft · 37 sec

  10. 10

    Merge slight left onto Veterans Memorial Highway

    46.5 mi · 44 min · Veterans Memorial Highway

  11. 11

    Take the exit slight right toward I 86 West: Chubbuck, Twin Falls

    1 km · 44 sec

  12. 12

    Continue straight

    62.7 mi · 59 min

  13. 13

    Continue on Vietnam Veterans Memorial Highway

    183 mi · 2 hr 55 min · Vietnam Veterans Memorial Highway

  14. 14

    Take the exit slight right toward I 84 Business: Garrity Boulevard, Idaho Center Boulevard

    1901 ft · 53 sec

  15. 15

    Turn left onto Garrity Boulevard

    1.4 mi · 3 min · Garrity Boulevard

  16. 16

    Turn left onto North Kings Road

    1.2 km · 1 min · North Kings Road

  17. 17

    Enter the roundabout and take exit 2 toward South Kings Road

    38 m · 3 sec · South Kings Road

  18. 18

    Exit the roundabout onto South Kings Road

    1 mi · 2 min · South Kings Road

  19. 19

    Turn right onto East Amity Avenue

    1.2 mi · 2 min · East Amity Avenue

  20. 20

    Continue on Diamond Street

    792 ft · 16 sec · Diamond Street

  21. 21

    Continue on East Colorado Avenue

    1143 ft · 35 sec · East Colorado Avenue

  22. 22

    Turn left onto Holly Street

    1556 ft · 45 sec · Holly Street

  23. 23

    Continue on Sunny Ridge Road

    1.6 km · 2 min · Sunny Ridge Road

  24. 24

    Turn right onto Stony Meadow Drive

    57 m · 8 sec · Stony Meadow Drive

  25. 25

    Arrive at your destination

    0 m · 1 sec · Stony Meadow Drive

Car Route Details

A richer read on the saved driving route between Saint Anthony and Nampa.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
25 steps
8 turns on the saved route
Ramps & Exits
9
3 merges, 6 ramps or exits
Navigation Density
8 / 100 mi
Decision points by distance
Main Roads
Vietnam Veterans Memorial Highway
183 mi · 58%
I 86 West
63.3 mi · 20%
Veterans Memorial Highway
46.5 mi · 15%
Idaho Medal of Honor Highway
17.2 mi · 6%
Yellowstone Highway
17.2 mi · 6%
Rigby Highway
3.13 mi · 1%
Longest Stretch

Vietnam Veterans Memorial Highway

Continue on Vietnam Veterans Memorial Highway

183 mi · 02h 55m

Route Summary

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

Trip Read

A longer out-and-back drive

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

Drive Time
05h 16m
Long day trip
Same-Day Return
10h 32m
Round-trip wheel time
Road vs Air
+67.7 mi
245.3 mi direct line
Halfway Stop
Burley
02h 38m from Saint Anthony
Leave By
6:28 AM MDT
Early departure recommended
Weather Watch

Mostly Sunny then Chance Showers And Thunderstorms leaving Saint Anthony and Mostly Sunny near Nampa.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Saint Anthony to Nampa?

The road trip is about 313 miles (503.8 km) and usually takes 05h 16m in normal driving conditions.

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

This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.

What is the halfway point on this route?

Burley is a useful midpoint, sitting about 168.7 miles from Saint Anthony and 144.3 miles from Nampa.

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

The direct path is about 245.3 miles (394.8 km), while the road route adds roughly 67.7 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 8:00 AM MDT. If you want a more comfortable same-day return, try to leave by 6:28 AM MDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $43.02 one way or $86.04 round trip. Estimated CO2 is about 98.2 kg one way.

What should you check before leaving?

Before you leave, expect Mostly Sunny then Chance Showers And Thunderstorms around Saint Anthony and Mostly Sunny near Nampa.

Stop Ideas Near Burley

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Burley, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Burley.

BUS

Twin Falls, Idaho

55 mi away
1135 Blue Lakes Circle

Flight Path Map

This map shows the direct air route between Saint Anthony and Nampa. Straight-line distance: 245.34 mi (394.84 km).

Saint Anthony

#1 Saint Anthony

City in and county seat of Fremont County, Idaho, United States

Population3,553
Coordinates43.9663000, -111.6821800
Altitude1514
CountryUnited States
Nampa

#2 Nampa

The most populous city in Canyon County, Idaho.

Population99,277
Coordinates43.5407200, -116.5634600
Altitude767
CountryUnited States
Start: East Main Street (-111.682179, 43.966403)
End: Stony Meadow Drive (-116.563329, 43.541003)

Estimated Travel Time

Distance: 504 km by road

SpeedTime
30 mph (48.3 km/h)10h 25m
40 mph (64.37 km/h)07h 49m
50 mph (80.47 km/h)06h 15m
60 mph (96.56 km/h)05h 13m
70 mph (112.65 km/h)04h 28m
80 mph (129 km/h)03h 54m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
11.05 gal
41.81 L · about $43.02
Round trip
$86.04
22.1 gal · 83.62 L
Estimated CO2
98.2 kg one way
Round trip: 196.4 kg / 433 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.89 $43.02 $86.04
Mid-grade $4.23 $46.75 $93.51
Premium $4.55 $50.27 $100.53
Diesel $5.41 $59.80 $119.61

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 Idaho · May 26, 2026

There is no time difference between Saint Anthony and Nampa. The current time is 05:02:34.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

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