Like to ride in the cockpit jump seat of an airliner on my next flight?

In a word like one hundred - NO WAY whatsoever -

You are wasting your time asking -
Even being in the Army or you start pilot training makes NO differences -
No matter what background...

There was NO CHANGE with "post 9/11 regulations" -
Access to cockpit of airliners in flight is prohibited since the 1960's -

No "contact to the company" will change the rules -
And there are "no waivers" -
It happens to be a Federal Law -

Ask a flight attendant to ask the captain for visit AFTER arrival -...
When all the passengers are exiting the airplane -
That is the time pilots are not busy and might have the time -
Before the departure - pilots ARE BUSY -

Not going to happen.

No way, Jose...!

No, it cannot legally be done. Period. You must be a certified cockpit crew member of Delta airlines to enjoy cockpit jumpseat privileges. Even pilots of other airlines must now ride in the back.

Not gonna happen, little Snowflake. US Federal law says Passengers are FORBIDDEN from entering the cockpit during flight. There are no exceptions or waivers.

Of course you can contact the company. The answer will be no. You 100% will not be going into the cockpit. What has being in the army got to do with it? Government ID and waiver? You think that counts for anything? There are Islamic terrorists planted in every army and air force in the western world. A few weeks ago a British soldier was jailed for terrorist activity.

It's not impossible for a non-crew member to be cleared to ride in the jump seat, but there's more than a few hoops to jump though, including thorough back ground investigation, and the airline will not have any reason to go through the hassle in your case.

I've seen aviation writers describe the process, and it's a bit like getting a ride with the Blue Angels in that it will only happen if there's some reason for them to arrange it. If you are a member of the media, and the ride can generate positive PR for the airline, you might have a shot, but that does not sound like the case.

It's very unlikely, though you can always ask. If you don't ask, you'll never know.

I know of some airlines that will allow visits to the flight deck, at the captain's discretion, while the aircraft is at the gate and the pilots aren't particularly busy. That's not in the US though.

Russia still allows foreign nationals a paid orbital re-entry vehicle.

You'll have better luck picking up thin spaghetti with your butt cheeks.

Federal Aviation Regulations
Sec. 121.547 — Admission to flight deck.

(a) No person may admit any person to the flight deck of an aircraft unless the person being admitted is—
(1) A crewmember;

(2) An FAA air carrier inspector, a DOD commercial air carrier evaluator, or an authorized representative of the National Transportation Safety Board, who is performing official duties;

(3) Any person who—

(i) Has permission of the pilot in command, an appropriate management official of the part 119 certificate holder, and the Administrator; and

(ii) Is an employee of—

(A) The United States, or

(B) A part 119 certificate holder and whose duties are such that admission to the flightdeck is necessary or advantageous for safe operation; or

(C) An aeronautical enterprise certificated by the Administrator and whose duties are such that admission to the flightdeck is necessary or advantageous for safe operation.

(4) Any person who has the permission of the pilot in command, an appropriate management official of the part 119 certificate holder and the Administrator. Paragraph (a)(2) of this section does not limit the emergency authority of the pilot in command to exclude any person from the flightdeck in the interests of safety.

(b) For the purposes of paragraph (a)(3) of this section, employees of the United States who deal responsibly with matters relating to safety and employees of the certificate holder whose efficiency would be increased by familiarity with flight conditions, may be admitted by the certificate holder. However, the certificate holder may not admit employees of traffic, sales, or other departments that are not directly related to flight operations, unless they are eligible under paragraph (a)(4) of this section.

(c) No person may admit any person to the flight deck unless there is a seat available for his use in the passenger compartment, except—

(1) An FAA air carrier inspector, a DOD commercial air carrier evaluator, or authorized representative of the Administrator or National Transportation Safety Board who is checking or observing flight operations;

(2) An air traffic controller who is authorized by the Administrator to observe ATC procedures;

(3) A certificated airman employed by the certificate holder whose duties require an airman certificate;

(4) A certificated airman employed by another part 119 certificate holder whose duties with that part 119 certificate holder require an airman certificate and who is authorized by the part 119 certificate holder operating the aircraft to make specific trips over a route;

(5) An employee of the part 119 certificate holder operating the aircraft whose duty is directly related to the conduct or planning of flight operations or the in-flight monitoring of aircraft equipment or operating procedures, if his presence on the flightdeck is necessary to perform his duties and he has been authorized in writing by a responsible supervisor, listed in the Operations Manual as having that authority; and

(6) A technical representative of the manufacturer of the aircraft or its components whose duties are directly related to the in-flight monitoring of aircraft equipment or operating procedures, if his presence on the flightdeck is necessary to perform his duties and he has been authorized in writing by the Administrator and by a responsible supervisor of the operations department of the part 119 certificate holder, listed in the Operations Manual as having that authority.

[Doc. No. 6258, 29 FR 19220, Dec. 31, 1964, as amended by Doc. No. 8084, 32 FR 5769, Apr. 11, 1967; Amdt. 121–253, 61 FR 2613, Jan. 26, 1996; Amdt. 121–288, 67 FR 2127, Jan. 15, 2002; Amdt. 121–298, 68 FR 41217, July 10, 2003]