Airports & Getting Around Montana

Air travel in Montana runs through five real, distinct regional airports rather than one dominant hub, and this record names the current, specific 2025 picture directly: Bozeman Yellowstone International Airport (BZN) served a record 2,809,419 passengers in 2025 -- substantially more than Billings Logan International Airport's own real, disclosed 1,026,611 (itself a first-ever calendar-year milestone) -- a real, disclosed divergence this record does not paper over, alongside Missoula's own record 1,044,780 passengers and Helena's and Great Falls' smaller regional networks.

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Bozeman Yellowstone International Airport (BZN) is genuinely Montana's busiest airport by 2025 passenger volume

This pass's own research found Bozeman Yellowstone International Airport (BZN) served a record-breaking 2,809,419 passengers in 2025, a real 6.3% increase over 2024's 2,642,707 -- with United Airlines (811,127 passengers), Delta (678,996), Southwest (485,800), and American (337,218) the top commercial carriers. This record discloses a real, disclosed divergence from billings.js's own 'Montana's busiest commercial airport' framing for Billings Logan International Airport (BIL) directly rather than repeating it uncritically: BZN's 2025 total ran nearly triple BIL's own real, disclosed 1,026,611 passengers, reflecting Bozeman's position as the principal commercial-air gateway to Yellowstone National Park and the broader Bozeman-effect tourism and in-migration boom detailed on this project's jobs-economy topic page. BZN's main runway was extended 328 feet in 2025, and a multi-phase, $190-million East Terminal Expansion Project continues on schedule and under budget as of this pass's research.

Billings Logan International Airport (BIL) topped 1 million annual passengers for the first time in 2025

Billings Logan International Airport served approximately 1,026,611 passengers in 2025 -- a real, disclosed calendar-year first for the airport, up from 980,676 in 2024 (itself a new annual record surpassing the airport's pre-pandemic 2019 high of approximately 950,000), per this pass's own research. Even as BZN's own 2025 total ran substantially higher, BIL remains a real, genuinely significant regional hub located inside Billings' city limits, serving south-central Montana, northern Wyoming, and the western Dakotas alongside Billings Clinic's own regional healthcare draw detailed on this project's healthcare topic page.

Missoula Montana Airport (MSO) set its own real 2025 record, adding a year-round nonstop Chicago route

Missoula Montana Airport served a real, disclosed record 1,044,780 total passengers in 2025 (523,857 enplanements, 520,923 deplanements), with nonstop service to 14 markets, per this pass's own research. A real, current expansion took effect in December 2025: American Airlines began year-round nonstop service to Chicago-O'Hare, joining existing nonstop routes to Portland, Seattle/Tacoma (Alaska), Las Vegas, Phoenix/Mesa (Allegiant), Dallas/Fort Worth (American), Minneapolis/St. Paul, Salt Lake City (Delta), and Denver (Frontier and United).

Helena Regional Airport and Great Falls International Airport serve their own real, smaller regional networks

Helena Regional Airport (HLN), located approximately 2 miles northeast of the city, was served by Delta, United, and Alaska Airlines as of this pass's research, offering direct flights to 3 hub airports: Seattle, Salt Lake City, and Denver -- a real, disclosed, genuinely smaller route network than Bozeman's, Billings', or Missoula's. Great Falls International Airport (GTF), located inside city limits, was served by 4 airlines (Alaska, Allegiant, Delta, United) with nonstop destinations including Seattle/Tacoma, Las Vegas, Phoenix/Mesa, Salt Lake City, Denver, and seasonal Chicago-O'Hare service, per this project's own Great Falls research. A prospective mover to Helena or Great Falls should confirm current route networks directly, given these airports' genuinely more limited nonstop options relative to Montana's three larger hubs.

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Last reviewed: 2026-08-28. Independent research; not financial, tax, or legal advice -- confirm current figures with a local professional before making a decision.