Distance: Calgary, AB to Great Falls, MT

Calgary, Alberta → Great Falls, Montana: Cross-Border Drive

Essentials

• Road Distance: ~370 miles (595 km)
• Driving Time: **5.5 – 6.5 hours** (border wait variable)
• Primary Route: **AB-2 South (Queen Elizabeth II Hwy) → Sweetgrass/Coutts Border → I-15 South (Montana) → Great Falls.**

Route Detail

1. Calgary → **Deerfoot Trail (AB-2) South** → Cross **Highway 201 (Stoney Trail)** if coming from west/north.
2. Continue AB-2 South through **Red Deer** (rest stop), **Lacombe**, **Ponoka**, **Wetaskiwin**, **Leduc** (airport), **Edmonton** (bypass via Anthony Henday / QEII). *Actually AB-2 goes directly south from Calgary past Red Deer to Edmonton? No: AB-2 goes Calgary → Red Deer → Edmonton. For US border, take **AB-2 South from Calgary all the way to Cardston/Coutts.** It passes **Red Deer, Lacombe, Ponoka, Wetaskiwin, Leduc, Edmonton (west side), Leduc, Nisku, Millet, Wetaskiwin... wait.**
3. Correction: **Highway 2 (QEII) runs Calgary → Red Deer → Edmonton → ... → Fort Macleod → Cardston → Coutts (Border).** It's the main N-S artery. **Distance Calgary → Coutts: ~300 km (185 mi), ~3h 15m.**
4. **Border:** **Coutts (AB) / Sweetgrass (MT)**. 24/7 commercial. Passenger: 7 AM – 11 PM (check current). **NEXUS/FAST lanes.** Have passports/Enhanced DL ready.
5. **I-15 South (MT):** Sweetgrass → Shelby → **Great Falls**. ~100 km (62 mi), ~1h.

Border Wait Times

• Check **CBSA** (Canada) / **CBP** (US) websites or apps (BorderWaitTime, CanBorder).
• Peak: Summer weekends, holidays. Can be 1-3+ hours.
• NEXUS/FAST: Dedicated lanes, usually minutes.

Alternative: Fly

• YYC (Calgary) → GTF (Great Falls): **No direct flights**. Connect via YYC → YVR/SEA/DEN → GTF. 5-8 hrs total.
• YYC → YYC (Great Falls has no commercial airport? **GTF is Great Falls International.** Yes, serves. But no direct from YYC.)

Tips

• Fuel in Canada (cheaper).
• Winter: Winter tires mandatory in AB/BC? Not AB, but recommended. MT: chains sometimes. Check 511.alberta.ca / mdt.mt.gov.
• Currency: CAD/USD. Cards work everywhere.
• Roaming: Check US plan.