Terminal MAIN hosts 3 airlines.
Twenty steps from check-in to TSA sets the tone here
The Main Passenger Terminal at Bellingham (BLI) is a single, small building where all flights run through one checkpoint and one gate area. Alaska Airlines, Allegiant Air, and American Airlines all share this space, so you never change terminals. Think hometown scale: one curb, one ticketing hall, one security line, then straight into the hold room.
Allegiant and Alaska mostly fly point-to-point from this terminal, which is why locals use BLI instead of driving 90 miles to Seattle or crossing 55 miles to Vancouver. Allegiant runs nonstops to spots like Las Vegas and often to Hawaii, while Alaska typically sends you through SEA or PDX to reach places such as Oakland. American’s presence is smaller, generally feeding into a single hub.
Check-in desks for Alaska, Allegiant, and American sit in one row near the front doors, so you can park, walk 150–200 feet, and be at your airline counter. Lines stay short outside of Allegiant bank times, but build the buffer if you’re hitting a morning departure block. Bag drop and check-in close on the usual airline timelines, so that 45–60 minute pre-departure arrival still applies even if the terminal looks tiny.
Security is a single TSA checkpoint serving the whole airport, and locals report that it often takes under 15 minutes outside peaks. During Allegiant vacation waves or tight weekend banks, assume 25–30 minutes from curb to gate just to be safe. There’s no PreCheck-exclusive lane every hour of the day, so plan like you might get routed through standard screening.
Once you clear TSA, you land in one compact gate room with just a handful of doors and seating clustered together. Gates for Alaska, Allegiant, and American are all within a one-minute walk of each other, so you can see boarding activity for most flights from a single seat. Power outlets exist but not at every chair, so charge in the car or in the lobby if you’re running low.
Inside security, Scotty Browns is the main sit-down option that regulars call out by name. Travelers specifically mention “great food” there when they need a real meal before an Allegiant or Alaska departure. Pricing runs typical airport levels, so expect a burger or bowl in the mid-teens and drinks priced like you’d see at a downtown bar, not a roadside diner.
There isn’t a lounge in this terminal—no Alaska Lounge, no Priority Pass, no airline clubs—so your “lounge” is essentially Scotty Browns or an empty gate row. Bring your own snacks if you want to avoid airport pricing, since no other branded restaurants or coffee chains are catalogued airside. On tight turns, most people just grab a drink or fries and stay close to their gate.
Parking is the sleeper value here, and it’s a key reason someone on FlyerTalk happily drove two hours to BLI for a $122 one-way Allegiant sale to Honolulu. Lots sit right beside the terminal, with walk times in the 2–4 minute range instead of shuttle rides. Day rates and long-term prices usually undercut major hubs like SEA, especially for multi-day or week-long trips.
Regulars play BLI as a strategy airport: they fly Allegiant nonstop to spots like Las Vegas out of this one-building terminal, then use Alaska through SEA or PDX for everywhere else. One home-airport flyer flatly notes they still connect on Alaska to reach Oakland via those hubs. The idea is to trade a 2-hour highway drive for an extra leg through SEA, with short walks and simple parking on the BLI side.
Tip: if you care about a sit-down meal, plan to clear security at least 45 minutes before boarding so you have time at Scotty Browns without worrying about missing your Alaska, Allegiant, or American flight.
Airlines based here 3
Insider tips for Terminal MAIN
With parking right by the Main terminal and economy lot a 5-minute stroll away, trade in airport shuttles and save on tips.