Go to that website then click “Enroute H-10”. That should show you all airways in the US, but I’m not sure about the rest of the world.
Also, if you want to be more realistic with your flight plans, here’s a suggestion.
Commercial: Look up your route on Google, for example, JFK-LAX. Just search that, and it should give flights on FlightAware.com that have flown that route. From there you can copy the flight plan under “route” and insert it into IF.
General: Use SimBrief.com and plan your flight. It gives you real life routes to use. :)
@ColinS…MaxSez: The ideal solution to your request by passing the the complex Route Planning App are Standard Nav Charts. The best for your requirement is the World Aeronautical Chart (WAC) Series which grafically displays Airways, fixes, aerodromes, NavAids etc, unfortunately some WAC’s for remote regions are no longer published; There replacement; For IFR operations are; the Hi/Low Level (FL180 +/-) Enroute Series. There Like the WAC but at a higher scale ,they display similar data. Note: There are similar VFR Enroute if your a GA or Flat Hat’er
Search Google or Wiki for a basic understanding of there formats and how to use. Then determine sources for both free and commercial sources like (cost) Jeppson’s, The Pilots Shop or Free, Web Search by Geo Area. Hope this is helpful. Regards
@ColinS. MaxSez: Colin. The Charts May appear complex but there simple to use. The Chart Legion has a symbology explaination and how to orient and use in the margin. I’ve used them for years as a basic pre-Flight planning tool for orientation and hazard to flight En-Route.
No need to enter it manually, there is thankfully a much, much simpler way…copy paste! :)
On the same device that you are playing IF on, copy the flight plan from whichever source you are using (Simbrief, Flightaware), then open IF, and once you have spawned, in the place where you search for waypoints on te map, just hold and select paste, and done! Now, there are a couple waypoints that are maybe not in IF, and instead it will give a different waypoint, which is way off course. Just see which waypoint it is, and manually remove it.
@Luke_Around…MaxSez: Contact @Brandon_Sandstrom by PM. He’s the Duty Expert. Am sure he’ll be pleased to asssist and steer you in the correct direction. Regards