What is the typical speed of a passanger jet when it is at cruising altitude?

cruising57 What is the typical speed of a passanger jet when it is at cruising altitude?
Mainly concerned with U.S coast to coast overland flight.

7 Responses to “What is the typical speed of a passanger jet when it is at cruising altitude?”

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  1. Jak says:

    for a 747-400, around mach .85 coast to coast is usually 4-6 hours

  2. fla_dan says:

    400-650 mph

  3. Tneciter says:

    550-600 miles/hr air speed, but ground speed can vary substantially up or down, depending on jets streams and their speeds.

  4. Fadhl says:

    Mach 0.70-0.85.

  5. Pullay says:

    500-600 miles per hour

  6. battle-ax says:

    300 – 350 kts or about 540 mph….NYC to SFO 5hrs.

  7. corky says:

    Dunno – but a lot faster than my car!

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