Online Flight Planner Intermittently Not Saving Flight Plans

I have found It only happens on my laptop but not my phone

That’s interesting. If they are both use your home router, the probability shifts to the browser being used.

I did some tests with Windows 10 and Windows 11 on Chrome and on EDGE on additional aircraft and this is my outcome:

Windows 10 Chrome Edge
Cessna 172 Skyhawk NOT Saved Saved
PC 24 NOT Saved Saved
Cessna 172 SP G1000 NOT Saved NOT Saved
Citation Longitude NOT Saved NOT Saved
PC12 Ngx NOT Saved NOT Saved
TBM 930 NOT Saved Saved
A320Neo NOT Saved Saved
Windows 11 Chrome Edge not tested
Cessna 172 Skyhawk Saved
PC24 NOT Saved
C172 G 1000 Saved
Citation Longitude NOT Saved
PC 12 NGX NOT Saved
TBM930 Saved
A320 Neo Saved

So, quite a variety of cases…

It’s really strange how it varies from one person to another, because for me, with five different browsers, it’s impossible to do anything with the TBM930 (see my screenshot above).

I hope someone will look into this, as the issue has been ongoing for me since the beginning of November.

I would like to point out that I used Google Chrome, Edge, Brave, Opera, and Firefox.

Yes, very strange all that. The issue arised at the beginning of November for me too and I am glad that I could save the TBM930…maybe on the next flightplans it wont save…who knows. Hope they will sort it out soon because I would like to use the flight planner on Chrome.

This poster found a solution: Online Flight Planner is not saving new flight plans - #15 by ErBo45

Do you have the same issue if you follow the OP’s steps to reproduce it?
• Yes. Same problem but doesn’t appear very intermittent to me.

Provide extra information to complete the original description of the issue:
• I had saved one flightplan quite a while back (not long after it first became available) but saw little point to it for me so I didnt go back until now when I wanted to test what others were saying about using it in conjunction with ATC causing bad performance in SU4beta.

It just wont save anything. I’ve tried two computers, several plans created different ways.

If relevant, provide additional screenshots/video:

In addition: I try to use the site more than once and it just shows this:

and it never goes further. BTW, Im on Edge.

Update: I tried again and was able to get back in so I did as someone suggested in another thread and just did a simple departure-destination flight plan and then saved it and that worked. I then went and tried to add an approach and that did not work. So I started over at another location and this time chose a departure, destination and used auto route and then was also able to save. I think it may be approaches and probably departure routes that cause it issues ( I dont use departure routes…yet)

As mentioned here, issue has been fixed with today’s update: Online Flight Planner - "Save new plan" not working - #29 by madeinblue

Do you have the same issue if you follow the OP’s steps to reproduce it?
• Yes

Provide extra information to complete the original description of the issue:
• Today, I was not able to save any flightplans. Got errormessage every time. I need this tool for proper planning for commercial airliners.

It has worked until today (tested from pre-release PS5 dec 3rd)

If relevant, provide additional screenshots/video:

Now it is suddently working again.

Do you have the same issue if you follow the OP’s steps to reproduce it?
•I HAVE THE SAME PROBLEM. IT’S APPEAR AFTER THE UPDATE OF THE PLANNER.FLIGHRSIMULATOR.COM

Provide extra information to complete the original description of the issue:

If relevant, provide additional screenshots/video:

ISSUE DESCRIPTION

When I create a flight plan using https://planner.flightsimulator.com/ (in a web browser) and then try to save it, I get an error in the upper right corner (Could not save flight plan).

The issue happens no matter of the Airplane, the Departure airport, or the Arrival airport.

FREQUENCY OF ISSUE

Every time, started 3/4 days ago.

REPRODUCTION STEPS

  1. Open https://planner.flightsimulator.com/ in a web browser (computer/mobile)

  2. Create a flight plan (no matter of the Departure or Arrival airports)

  3. Save it

MEDIA

TECHNICAL DESCRIPTION

The http request sent to [POST] https://planner.flightsimulator.com/api/v1/flightplans returns 400 Bad Request.

Here is the request body:

{
    "name": "LBWN-LBSF",
    "route": {
        "__Type": "JS_FlightPlanRoute",
        "departureAirport": {
            "__Type": "JS_ICAO",
            "type": "A",
            "region": "",
            "airport": "",
            "ident": "LBWN"
        },
        "departureRunway": {
            "__Type": "JS_RunwayIdentifier",
            "number": "09",
            "designator": ""
        },
        "destinationAirport": {
            "__Type": "JS_ICAO",
            "type": "A",
            "region": "",
            "airport": "",
            "ident": "LBSF"
        },
        "destinationRunway": {
            "__Type": "JS_RunwayIdentifier",
            "number": "09",
            "designator": ""
        },
        "enroute": [
            {
                "__Type": "JS_EnrouteLeg",
                "fixIcao": {
                    "__Type": "JS_ICAO",
                    "type": "W",
                    "region": "LB",
                    "airport": "",
                    "ident": "DICXA"
                },
                "via": "",
                "isPpos": false,
                "hasLatLon": false,
                "lat": 0,
                "lon": 0,
                "hasPointBearingDistance": false,
                "referenceIcao": {
                    "__Type": "JS_ICAO",
                    "type": "",
                    "region": "",
                    "airport": "",
                    "ident": ""
                },
                "bearing": 0,
                "distance": 0,
                "altitude": null,
                "name": ""
            },
            {
                "__Type": "JS_EnrouteLeg",
                "fixIcao": {
                    "__Type": "JS_ICAO",
                    "type": "W",
                    "region": "LB",
                    "airport": "",
                    "ident": "UMPIT"
                },
                "via": "",
                "isPpos": false,
                "hasLatLon": false,
                "lat": 0,
                "lon": 0,
                "hasPointBearingDistance": false,
                "referenceIcao": {
                    "__Type": "JS_ICAO",
                    "type": "",
                    "region": "",
                    "airport": "",
                    "ident": ""
                },
                "bearing": 0,
                "distance": 0,
                "altitude": null,
                "name": ""
            }
        ],
        "departure": "DICX1N",
        "departureTransition": "",
        "departureVfrPattern": {
            "__Type": "JS_VfrPatternProcedure",
            "type": "",
            "isLeftTraffic": true,
            "distance": 0,
            "altitude": 0
        },
        "arrival": "UMPI6D",
        "arrivalTransition": "",
        "approach": {
            "__Type": "JS_ApproachIdentifier",
            "type": "ILS",
            "runway": {
                "__Type": "JS_RunwayIdentifier",
                "number": "09",
                "designator": ""
            },
            "suffix": "Y"
        },
        "approachTransition": "BENGO",
        "approachVfrPattern": {
            "__Type": "JS_VfrPatternProcedure",
            "type": "",
            "isLeftTraffic": true,
            "distance": 0,
            "altitude": 0
        },
        "cruiseAltitude": {
            "__Type": "JS_FlightAltitude",
            "altitude": 11000,
            "isFlightLevel": false
        },
        "isVfr": false
    },
    "routeString": "LBWN DICX1N DICXA DCT UMPIT UMPI6D LBSF",
    "routeDistance": 279.00563581209263,
    "aircraft": {
        "icao": "",
        "registration": "",
        "profileId": "fs24-microsoft-aircraft-a320neo",
        "aircraftId": "fs24-microsoft-aircraft-a320neo",
        "edtoCertification": 0,
        "edtoLimit": 60
    },
    "extendedData": {
        "destinationAlternates": [],
        "takeoffAlternates": [],
        "enrouteAlternates": [],
        "stepClimbs": [],
        "ruleFlags": []
    },
    "performance": {
        "costIndex": 30,
        "speedProfiles": [],
        "edtoSegments": []
    },
    "payload": {
        "cargoWeight": 570.0001,
        "paxCount": 4
    },
    "fuel": {
        "taxiFuel": 33.51026385210139,
        "tripFuel": 550.7189700649296,
        "finalReserveFuel": 234.50000000000003,
        "finalReserveOption": 6,
        "alternateFuel": 0,
        "contingencyFuel": 27.535948503246484,
        "contingencyOption": 5,
        "tankeringFuel": 0,
        "extraFuel": 2204.622621848776
    },
    "details": {
        "flightRules": 1,
        "flightType": 0,
        "flightNumber": "",
        "atcCallsign": "",
        "offBlockTime": "2025-12-10T11:36:00.000Z",
        "remarks": "DOF/251210"
    },
    "ofp": ""
}

How many flight plans have saved so far ?. There is a known limit of 100 :Increase above 100 the maximum number of flight plans that can be saved in planner.flightsimulator.com. If you need to save more, then you need to delete older ones.

Thanks for this. I had the same issue, unable to save new flight plans, and after deleting them all, it saves perfectly now