Switch the camera to manual mode and use spot metering. Get a light reading for the bright sky and set those setting in manual mode. Then use your flash and adjust the power level on the menu to have enough light to light the cockpit. You will need to do several shots to get it right. You will get a perfect exposure.

It's a very good autumn scene. But it looks pretty blue and cold on my (calibrated) monitor. I tried warming it in RAW edit by pushing the WB up +25 which makes quite a difference. I also pushed the mid-range whites a little. It makes it look a lot warmer and slightly brighter and vibrant. If you want to allow mods I can upload it.

Sorry to break ranks, but the engine is either out of focus or you had some camera movement when you shot it. Artistic/dreamy/ethereal shots aside (which this isn't) you really need to get at least some part of any image sharply in focus.

She looks a little unhappy - I presume because it was cold? The light looks quite bright and there are face shadows. You could try using fill-flash for shots such as these. It would fill in the face shadows, and also lift the exposure on the the dark clothing.