Transportation Security Administration
Billings International Airport
www.flybillings.com
Airport Information: 1-406-238-3420
Sky West Airlines (Delta Connection)
www.skywest.com
Airport Information: 800-453-9417
Great Lakes Airlines
www.greatlakesav.com
Airport Information: 800-554-5111
Delta Airlines
www.delta.com
Airport Information: 800-221-1212, 800-325-1999 (automated)
Northwest Airlines
www.nwa.com
Airport Information: 800-225-2525, 800-441-1818 (arrival)
United Airlines
www.ual.com
Airport Information: 800-241-6522
Horizon Air
www.horizonair.com
Airport Information: 800-547-9308 (Northwest partner)
Frontier Airlines
www.frontierairlines.com
Toll Free: 1-800-432-1FLY (359), Denver Metro: 303-371-7000
AmTrak
www.amtrak.com
Information: 800-USA-RAIL
Greyhound
www.greyhound.com
Information: 800-229-9424