Going to Charles De Gaulle

Maybe scout the area and taxi stand situation prior to leaving Paris? Reserve one online or via phone?

I would not depend on a taxi stand. I had a discussion with the folks at reception at one of my hotels as I had noted a taxi stand down the street near a Metro stop. I wondered if I could just head over there on my departure day but the folks said at the hotel not to try that as often there were no taxis there at all. Well....they were right! I DID have them call a cab for me but as we went by that taxi stand early that AM....NO taxis!!

Many here order thru the G7, either website, app or via their English phone line.

We have spent a lot of time in Paris in many neighborhoods including the Marais and rarely see taxis at stands. The one at Bastille always seems to have a line of them, but we have not seen that in neighborhoods. You need to be at the airport in the check in line at 7 for a 10 am flight to the US so you need a cab at about 6 am; you don't want to be wandering around the street with your luggage hoping to find one. This is a high stakes airport run. Book a cab the night before on the G7 English line; it costs 7 Euros to book or 4 to call when you need it, but you want the airport run booked the day before. The cost from the Marais will be 50 Euro plus the 7 -- it should show as 50 on the meter when they start (I think the 7 is added on a side meter or at the end, but the total will not be more than 57. Be on the street about 5 minutes before the time you set; we have used them countless times and they are always a little early and for us so far perfectly reliable. (my plan B is the metro/RER but we have never needed it and once my plan B was Uber as I had my arm in a cast, but didn't need it then either)

G7 English line: +331.41.27.66.99

There are also answers to this on your duplicate post, including advice for how to reserve in advance via the G7 taxis website. That's what I would advise, as well.

I always take metro/RER B. Is it affected by the strike on the day you will be there? If so, I'd take either a taxi or airport shuttle as a backup.

I always have taken RER as well. I have never had a problem and feel it is more reliable than a taxi. The only minor trick that only takes awareness is to make sure to get the one that goes to CDG because some do not go that far.

By all means call ahead and reserve a taxi. Or, if you feel up to navigating the metro/RER connectional 6:00 am with your luggage, do that. Both are tried and true approaches.
Other posters with lots of experience in Paris report that taxi stands are unlikely to have taxi there when you need them. I'm sure that accurately reflects their experience. Nevertheless, our experience has been a little different. We've taken taxis from taxi stands on two of our most recent trips after checking with cab drivers the day before to see if we could expect cabs to be there the following day. One was in front of the Hotel Pullman on rue Jean Rey and the other was at the Tour-Maubourg metro stop. I have no knowledge of any taxi stands near where you're staying.
Why would this be preferable to reserving ahead of time? You'd save the modest reserve-ahead fee and you would be operating on your schedule. I find it nerve-wracking to get down to the sidewalk on a deadline then stand there hoping that you and the cab are perfectly in synch.

You don't want to take the RER on a strike day because many fewer trains are running north from Gare du Nord (and if you get it south of Gare du Nord you have to change tracks and levels to get the train to the airport; they will be running on the main line tracks upstairs and not the RER station on the lower level.) It is crowded enough without having 3 trainloads of people in one train. It is also a poor choice if you have to make metro connections with luggage unless you can easily manage your bags up and down stairs securely. And of course right now the 4 metro is not stopping at Gare du Nord.

We will certainly be taking a cab but have in the past sometimes taken the train when lightly packed, on a non-strike day and when we were a lot younger than we are now.

The landlord I used to rent my studio from each year cautioned me about shuttles and on two occassions I exoerienced issues. One trip the reserved shuttle was not at agreed location at CDG and was late but then seemed ready to depart without me, having loaded up with a large group. On a trip to CDG the shuttle picked me up on time but then subsequent pickups delayed us so much I almost hopped out to flag a taxi. I did get to CDG with enough time but it was nerve racking. Now I prebook through G7 for early morning departures. If some wiggle room and no strikes, I take the RER. Perhaps my issues with the only shuttles were a one off but my landlord seemed to be correct.

We always take the RER. Depending on where in the Marais, I would just walk to the RER from there. I wouldn’t bother with the mêtro to get to the RER. And I detest the Châtelet mêtro, so big you can be lost for days in there. We have rolling suitcases so walking is easy for us. RER is not affected by traffic on the road so it’s the most dependable, and least expensive.

I’ll be staying in the Marais in a couple weeks and will walk from the RER when I get there, and back when I leave.

I use www.parishuttle.com. Reliable and pick you up at your street address.

I would avoid Paris Shuttle at all costs. Use taxi, bus, train, or VTT such as Uber, Chauffeur Privé, or Taxify.

“One was in front of the Hotel Pullman on rue Jean Rey and the other was at the Tour-Maubourg metro stop.”

It was the La Tour-Maubourg stop where there were no taxis on the morning in question. Yep, had thought I always saw them there but....

Agree with Susan about the RER -- except you have to check during the current strike situation to see how it's running Paris-CDG. We're flying home in about a week with a 7 a.m. flight, so it's the IBIS at the airport for us, taking the RER the evening before. Which WILL be on a strike date, so we'll plan to allow extra time.

Pam,
Better safe than sorry, especially when it comes to getting to the airport for your trip home. So when it comes to the taxi option, it might be safest to call ahead and reserve a taxi. That's good advice. But I'll probably continue to seek out a nearby taxi stand for the reasons I stated.
As for that taxi stand at Tour Maubourg, there were taxis there every time we passed by as well as on the day when we travelled back to CDG. Perhaps the difference in my experience and yours (as well as your hotel's) has something to do with time of day, or even day of the week. Of course It could be that I'm a movie star, a famous athlete or fabulously rich, but alas, that's not it.
I don't want to give bad advice, I'm just commenting on my own experience, which appears for some reason to be different from yours (as well as janet's).

Agree with RER from Chatelet Les Halles. We stayed in Les Marais a couple weeks ago, and we found it simple to use for the airport both coming and going. As long as it's not a strike day (the schedule is published), you're golden!

We were just in Paris and had to catch a flight around the same time, also from an AirBnB. We used Uber. It was quite easy and no hard to get one at all. Pricier than taking the metro but worth it to us as we have two young children and an assortment of luggage.

gina, what did Uber charge? Interested to know how it compares with the set taxi fares of 50/55 euro.

Norma,

We upgraded to an Uber van because we didn't want to risk a sedan not fitting all of our luggage and the extra stroller we bought (so two strollers!) and it was 80 Euro. Pricey, yes, but it was worth it! Husband wanted to take the metro at first with both kids and all of our stuff at 6:30a and I just thought it would be too stressful!

I have hailed a cab with no problem and have also used "Super Shuttle". Both ways were pain-free and efficient although not necessarily the least expensive options.