Buy capacity
When utilisation is high and a clear next aircraft or check pipeline needs room. Confirm the cash for the aircraft and a fuel reserve before the upgrade.
Hub
Your hub is a capacity machine. Expand it when aircraft are busy — not when the upgrade button is glowing.
·~8 min read
In map-first airline managers the home hub is not decoration — it caps how many aircraft you can park, which types you can support, and how fast you recover from maintenance. Expanding too early starves the fleet; expanding too late leaves cash idle in the bank while routes go unserved.
This article owns hub investment timing and facility priorities. It does not redo the beginner cash-flow playbook or the full feature list.
The hub is best understood as a capacity machine with several dials: how many aircraft it holds, how large they can be, and how efficiently it fuels and services them. Each dial costs cash and materials, and each competes with simply buying another aircraft. The skill is knowing which dial is your real bottleneck right now.
Hangar places create fleet headcount. Runway/hub class gates larger airframes. Facilities change the operating rhythm: a stronger Maintenance Bay shortens and cheapens A-checks; a refinery and ops buildings cut friction and costs around fuel and turnaround.
Materials and cash spent here are cash not spent on another flying aircraft. Treat upgrades as capacity purchases with an opportunity cost.
It helps to separate upgrades that add revenue from those that reduce cost. Hangar places and runway class let you fly more or bigger aircraft, which raises revenue potential. Maintenance and fuel facilities lower the cost of what you already fly. Both are valuable, but they pay back in different ways and at different points in your growth.
The clean signal: every hangar place is filled, aircraft are flying or refueling most of the day, and you still have routes you could serve with one more frame. That is a hangar buy.
Weak signals: the upgrade is on sale in your head; you want a bigger plane “someday”; one aircraft sits broken while others are idle. Fix utilisation and maintenance first.
Gather proof over a few sessions rather than one. Look at the fleet tracker at different times of day. If aircraft regularly wait at the gate for you to claim or refuel, the bottleneck is attention, not capacity, and another hangar place would just add another waiting plane.
Also check the money side. A hangar slot is only useful if you can afford to fill it. Before you upgrade, confirm that you can pay for the aircraft, whether bought or leased, and still keep a fuel reserve for the whole fleet. An empty new slot is the most expensive kind of decoration.
1) Slots when capped. 2) Maintenance Bay when A-checks start stacking or away-from-home penalties hurt. 3) Fuel/refinery style upgrades when fuel spend dominates margins. 4) Runway/class unlocks when the next airframe tier is actually affordable and unlocked by airline level.
Skip prestige cosmetics until the network prints cash on autopilot. In Flyorian, materials from claims are the usual meter for facility spends — keep a buffer for seats densification on your best workhorses too.
The Maintenance Bay deserves special attention because its benefits scale with fleet size. With two aircraft, a slow A-check is an annoyance. With eight, it is a queue that idles paying frames. Upgrading it before that queue forms keeps your best routes flying, and it avoids the higher cost of handling checks away from home.
Fuel upgrades follow a similar logic. When fuel is a small share of your spend, a refinery is a luxury. When fuel eats most of each claim, a modest efficiency gain is worth more than another aircraft. Check the ratio of fuel to revenue on your busiest routes before deciding.
Larger airframes need a hub that can support them, and airline level has to unlock them too. Upgrading the runway class before the level gate opens leaves you with capacity you cannot use; reaching the level first without the hub leaves you with a type you cannot base.
Treat runway class as the last piece of a package: level unlocked, cash for the aircraft, routes that justify the size, and a free hangar place. When all four line up, the upgrade opens a new tier. When only one or two do, it is an early bill.
A useful compromise is to squeeze more from your current types first. Seat densification on a proven workhorse raises revenue on every sector without needing a bigger runway, so it often beats a class upgrade in the short term.
Sequence matters as much as choice. A typical healthy order looks like this: fill the starting hangar places with busy aircraft, add a place when every slot is working, invest in the Maintenance Bay before the check queue forms, and only then consider the heavier class and refinery spends.
Write down the trigger for each upgrade before you buy it. For a hangar place the trigger is a full fleet with waiting routes. For a Maintenance Bay upgrade it is more than one aircraft waiting for a check at the same time. For a runway class it is an unlocked aircraft you can afford and route. Triggers stop you from spending on impulse.
Because hub work is paid in cash and materials, also keep an eye on which resource is scarce. If materials are the bottleneck, favour the upgrade that unlocks the most flying per material spent. If cash is scarce, delay anything that does not directly raise claims or lower fuel spend.
Airline XP unlocks distant airports and larger types in parallel with hub spend. A big hub with nowhere unlocked to fly is wasted concrete; long unlocks with two hangar places is a queue. Balance level progress (by flying) with slot progress (by investing).
A steady cadence works well: fly until a level unlock or a full hangar creates a clear need, spend on the one upgrade that removes that constraint, then return to flying. Small, well-timed steps beat a single large splurge that leaves the treasury empty.
When utilisation is high and a clear next aircraft or check pipeline needs room. Confirm the cash for the aircraft and a fuel reserve before the upgrade.
When cash should fuel flying frames or when aircraft sit idle already. If planes wait at the gate for you, fix attention before you add capacity.
See features for the hub systems list, how to play for the upgrade click-path, and airline tycoon for the empire-scale fantasy this capacity enables.
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