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Reference data only — not for flight planning or navigation. Verify with official sources (AIP, NOTAMs, ATC). Full disclaimer

Colstrip Airport (KM46) — Colstrip, United States

At a glance

Tower
122.9
Runways
06/24
Elevation
3,426 ft

Times in UTC. Reference only: verify with the AIP and NOTAMs.

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63% Data Complete 33 of 52 points
Missing: Operations, Fuel, Contacts
Section Breakdown
Basic Info 7/7
Runways 4/4
Frequencies 1/4
Operations 0/2
Fuel 0/1
Contacts 0/2
Additional Info 2/10
Data last updated:
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Basic Airport Information

  • ICAO: KM46
  • Name: Colstrip Airport
  • Type: small_airport
  • Category: Domestic
  • Latitude: 45.852901
  • Longitude: -106.709
  • Elevation: 3426 ft
  • Country: United States
  • Municipality: Colstrip
  • IATA Code: N/A
  • FAA Code: N/A
  • FIR: N/A
  • Timezone: America/Denver
  • Distance from City: N/A km
  • VFR: Yes
  • IFR: No

Runways

Runway 06/24

  • Designation: 06/24
  • Dimensions: 1554x23m
  • Surface: ASP
  • PCN: N/A
  • Lighting: Lighted
  • NAVAIDs: N/A
  • Approach Types: N/A
  • Remarks: N/A

Frequencies

  • Tower: 122.900 MHz
  • Ground: N/A
  • Operations: N/A
  • Traffic/Approach: 127.750 MHz
  • ATIS: N/A

Operation Hours

Monday N/A
Tuesday N/A
Wednesday N/A
Thursday N/A
Friday N/A
Saturday N/A
Sunday N/A
  • Extra Hours On Request: Not recorded
  • Remarks: N/A

Contacts

  • AIS Tel: N/A
  • ARO Tel: N/A
  • MET Tel: N/A
  • Admin Tel: N/A
  • Health Tel: N/A
  • Police Tel: N/A
  • Authorities Tel: N/A
  • Website: N/A
  • Remarks: N/A

Slots / PPR

  • Slot Required: Not recorded
  • PPR Required: Not recorded
  • PPR Contact: N/A
  • Remarks: N/A

Immigration

  • Port of Entry: Not recorded
  • APIS Required: Not recorded
  • GAR Required: Not recorded
  • Remarks: N/A

Airport Services

No services listed for this airport yet.

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United States Permit Requirements

Fast Landing: 1d
  • Overflight Permit: No
  • Landing Permit: Conditional
  • Overflight Lead Time: N/A
  • Landing Lead Time: 60 minutes minimum (eAPIS manifest before departure); recommend 24-48 hours for CBP port notification
Private / GA Operations:

No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures.

View Full United States Permit Details

Active NOTAMs

6/9535
info
COLSTRIP, COLSTRIP, MT. GPS RWY 24, ORIG-C... MILES CITY ALTIMETER SETTING: S-24 CAT C VIS 3.
2026-08-31 19:58 UTC 2028-08-31 19:58 UTC
6/7328
info
IAP COLSTRIP, COLSTRIP, MT. GPS RWY 24, ORIG-C... S-24 CAT C VISIBILITY 2 1/2. MLS ALTIMETER SETTING S-24 CAT C VISIBILITY 3. CHANGE ALTIMETER NOTE TO READ: WHEN LOCAL ALTIMETER SETTING NOT RECEIVED, USE MLS ALTIMETER SETTING. CHANGE MILES CITY ALTIMETER SETTING MINIMUMS TO READ: MLS ALTIMETER SETTING MINIMUMS. CHANGE HELICOPTER VISIBILITY REDUCTION NOTE TO READ: RWY 24 HELICOPTER VISIBILITY REDUCTION BELOW 3/4 SM NOT AUTHORIZED. THIS IS GPS RWY 24, ORIG-D.
2026-05-01 15:41 UTC No end time given (PERM)
Received 2026-09-03 15:37 UTC
6/7327
info
IAP COLSTRIP, COLSTRIP, MT. GPS RWY 6, ORIG-D... S-6 CAT C VISIBILITY 2 1/2. CHANGE ALTIMETER NOTE TO READ: WHEN LOCAL ALTIMETER SETTING NOT RECEIVED, USE MLS ALTIMETER SETTING. CHANGE *5045 WHEN USING MILES CITY ALTIMETER SETTING TO *5045 WHEN USING MLS ALTIMETER SETTING. CHANGE MILES CITY ALTIMETER SETTING MINIMUMS TO READ: MLS ALTIMETER SETTING MINIMUMS. CHANGE HELICOPTER VISIBILITY REDUCTION NOTE TO READ: RWY 6 HELICOPTER VISIBILITY REDUCTION BELOW 3/4 SM NOT AUTHORIZED. THIS IS GPS RWY 6, ORIG-E.
2026-05-01 15:40 UTC No end time given (PERM)
Received 2026-09-03 15:37 UTC
NOTAMs received from the FAA NOTAM feed (last message 2026-10-28 07:15 UTC). This list is built from the feed as NOTAMs are issued and is not checked against the FAA's full list: confirm with FAA NOTAM Search before flight.
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Nearby Airports

K3U4 St Labre Mission Airport 24 NM K1S3 Tillitt Field 25 NM K6U7 Hysham Airport 33 NM MT34 Ruff Airport 39 NM KMLS Miles City Airport - Frank Wiley Field 49 NM MT29 Sunday Creek Airpark 52 NM 9MT0 Pale Morning Dun Ranch Airport 52 NM 00F Broadus Airport 57 NM

Compare KM46 with K3U4 side by side →

Airport History

No milestones recorded for Colstrip Airport yet. Know when it opened, who built it or a notable event? Add it with a source.

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Frequently Asked Questions
What is the tower frequency at KM46?
The tower frequency at Colstrip Airport is 122.9 MHz.
Does KM46 require landing permits?
It depends on the flight. No permits required for private non-revenue flights. eAPIS manifest mandatory for all international arrivals/departures. Permit details for United States
Where is KM46 located?
Colstrip Airport (KM46) is located in Colstrip, United States.
How long is the runway at KM46?
The main runway at Colstrip Airport (06/24) measures 1554x23m.
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