4B (4B)

4 non-stop routes across 4 airports. Main hub: Boston (BOS).

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Live fares · BOS → MSS

Main hubs for 4B

Where 4B concentrates its operations — sorted by routes flown from each airport.

#1 · BOS 1 routes Boston USA #2 · MSS 1 routes Massena USA #3 · PDT 1 routes Pendleton USA #4 · PDX 1 routes Portland USA

Where 4B flies most

Top destination countries by route count.

#1 4 routes USA Flights to USA

Related guides

Sibling pages from across Flightmaps — country aggregations, airport rosters, and visa context for 4B.

All airports in USA Flights from USA Visa-free with USA passport Cheapest month to fly to Boston

Top 4B destinations

Massena · 1 routeBoston · 1 routePortland · 1 routePendleton · 1 route

4B network at a glance

  • 4 non-stop routes
  • 4 airports served
  • Total network span: 1,424 km
  • Longest route: BOS-MSS (420 km)
  • Shortest route: PDT-PDX (292 km)

Frequently asked questions about 4B

  • How many routes does 4B operate?

    4B (4B) operates 4 non-stop routes across 4 airports worldwide.

  • What is 4B's main hub?

    4B's busiest hub is Boston (BOS) in USA, with 1 non-stop routes from this airport alone.

  • What is 4B's longest route?

    4B's longest non-stop route is BOS-MSS at 420 km.

  • Where does 4B fly the most?

    4B flies most often to USA, with 4 routes serving destinations in USA.