About M5
M5 is a regional carrier doing something pretty specific — connecting a handful of small airports in the Pacific Northwest that bigger airlines simply won't touch. We're talking Eastsound (ESD), Lopez Island (LPS), Friday Harbor (FRD), and Seattle's Boeing Field (BFI). Ten non-stop routes, all within the USA, spread across just 850 km of total network. This isn't a legacy carrier or a budget airline chasing transcons — it's a tight, community-focused operation built around island hopping in Washington State. If you need to get to the San Juan Islands without a ferry, M5 is basically your answer.
Why fly M5?
Honestly? You fly M5 because the alternative is a lot of water and a ferry schedule that doesn't care about your plans. These routes — like the ESD-BFI run at 139 km — aren't glamorous, but they're genuinely useful. Getting from Eastsound to Seattle in a short hop instead of dealing with ferries and driving? That's real time saved. For locals commuting between the islands and the mainland, M5 is less of a "choice" and more of a lifeline. And there's something kind of cool about flying into tiny airports where the runway feels personal. Don't expect lounges or loyalty perks — but do expect to actually get where you're going without a full day of travel.
M5 hub airports
- ESD Eastsound — 3 M5 routes from USA
- BFI Seattle — 3 M5 routes from USA
- LPS Lopez Island — 2 M5 routes from USA
- FRD Friday Harbor — 2 M5 routes from USA
Top destination countries on M5
- USA — 10 M5 routes
Tips for booking M5
Book early — small regional flights like these can fill up faster than you'd expect, especially in summer when the San Juan Islands get busy. With only 10 routes across 4 airports, M5's network is tight, so there's no real flexibility if you miss a flight. LPS and FRD are tiny operations, so don't show up expecting amenities. Baggage allowances on small regional aircraft tend to be strict — pack light and check directly with M5 before you show up with a giant suitcase. There are no alliance partners to worry about here, which keeps things simple but also means no miles stacking from other programs.
Frequently asked questions about M5
Where does M5 fly?
M5 operates 10 routes primarily serving destinations across the USA. The airline focuses on connecting regional and domestic markets from its main hub.
What is M5's main hub airport?
M5's primary hub is Eastsound Airport (ESD), which serves as the central connecting point for the airline's network.
Is M5 a legacy carrier, low-cost airline, or regional carrier?
M5 operates as a regional carrier with a focused network of 10 routes, serving smaller and mid-sized markets primarily within the USA.
When should I book M5 flights and what fare classes are available?
For the best fares, book in advance when possible, as prices typically increase closer to departure. M5 offers standard fare classes for domestic travel with varying levels of flexibility and amenities.
What are M5's baggage and check-in policies?
Baggage allowances and check-in procedures vary by fare type and route; we recommend checking M5's official website or contacting the airline directly for specific details regarding your booking.