How to properly redirect with Flask

I'm new to Flask and have a question about one of my implementations.

I have a working prototype of what I'm trying to achieve, but I'm posting here as I don't believe it's the most pythonic (or SEO-compliant) solution.

Here's the situation:

• I have a web form that a user fills in.
• On submit, I use the input data as a parameter to call an external service API.
• Based on the the parameter, the API returns a URL.
• I would like to abstract all of this from the user and, on submit, open a new tab with the returned URL.

Here is how I currently have it implemented:

from flask import redirect
from app import app
from .forms import SomeForm
from util import APICall

@app.route('/page', methods=['GET', 'POST'])
def page():

    # Declare form
    form = SomeForm()

    # Validate the form data
    if form.validate_on_submit():
        result_url = APICall(form.input.data).get_url()
        return redirect(result_url)

This works. But is it the proper way of doing this? On the backend I see that it executes as a 302 redirect - will I be penalized (from an SEO standpoint) for having functionality that permanently results in a 302?