CDG to Arcueil after overnight flight-Metro or Taxi? Metro pass info needed.

Yes, take the RER B to La Place. Buy your pass at CDG RER station. The fixed fare taxi is valid only within the city limits. Arcueil is 2 kilometers over the city limit, so your fare would skyrocket. The meter clicks to a different rate whenever you are outside Paris. My estimate is 75-100€. Furthermore, you’ll hit rush hour traffic, and your route goes through some bad bottlenecks. Cité Universitaire is the last stop within the city limits. Gentilly, followed by La Place, are just over the limits.

Watch the boards carefully that you step into a RER B that will stop at La Place. Not all do.

Yes, you might be able to buy a weekly card, but they may sell the weekly Navigo only through Wednesday.
Someone else will need to help you with this. What day of the week do you fly out?

Finally, unless this hotel is truly near the RER, it is pretty inconvenient for tourism. A half mile (up a little grade) from the RER is a huge National road, which is where I suspect your hotel is located. I know La Place and Arcueil very well. If it’s up at the National 20, this isn’t convenient. There are busses on the National 20 that take you to the 4 metro, in itself, a tedious ride to the sites. If it were next to La Place, it would be ok, not great, but ok.
If it’s refundable, I’d look to move inside the city.

Thank you Bets for your quick reply!!
We leave Paris on Sunday, so we would need a pass for Thur-Sun.

Forgive my ignorance, but what is the "B" in the RER B?

B is the name of the line, and RER is the name of the network of high-frequency, cross-town commuter railways in the Paris region.

The only hotels in Arcueil are on the main road Bets mentions. I am assuming it is the Campanile, although it could be the Courtyard by Mariott. Either way, make sure to get a room that does not face that road, it is a major highway.

Metro Line 4 recently got extended to the south, and the new "Barbara" stop is only 1/2 mile from the Courtyard (or a quick ride on bus 323), and "Lucie Aubrac", about the same or a bit less from the Campanile. For day-to-day sightseeing, the metro could be more convenient than the RER, because it runs more frequently than RER trains to Laplace, and offers easier connections.

Otherwise, the area is not particularly nice (EDIT: understatement!). A new-ish (less than 10 years) mall at "La Vache Noire" (where the Courtyard is) has improved the overall atmosphere, but there's still a long way to go. I agree with Bets that you should look somewhere else if you can get money back!
If you really can't afford central Paris, then perhaps Vanves, Montrouge or Vincennes would be better. Or just pick one of the many cheap hotels along the outer city limits of Paris (being aware that there's a major highway there).

You can buy the Navigo Decouverte pass on Thursday at the airport and it will cover all travel you do Thurs-Sunday --- it is a great travel bargain and if you use it for the airport trip to the city, it will definitely pay for itself and even more so if you are returning to the airport.

This is a truly terrible location for visiting Paris. There are inexpensive hotels on the edges of Paris that are better connected by transport and in more attractive areas.

As noted above -- be sure you get the right RER B as not all trains make all stops. It is not hard to do it if you know about this -- there is an electronic board on the platform that shows all the stops the next train will make -- just be sure to take one that goes to your station. Same thing going to CDG if you return on the RER -- about half of the RER Bs do not go to CDG but branch off -- you need to be sure you get one whose final destination is CDG.

You may purchase a Navigo Decouverte card for 5 euros. The card requires your photo and clearly written name in the spaces so provided before it may be used. The weekly zone 1-5 pass costs 22.80 euros which is loaded separately onto the card. This pass is valid during the current Monday through Sunday period.

I might add that the location you have chosen is an absolutely horrible location from which to visit Paris, if Paris is indeed your destination. Being 1/2 mile from public transportation will feel increasingly longer each time you walk it. You might download and have ready a few VTC company apps (private driver companies), particularly for your evening return. I use Bolt or FreeNow.

Thank you all for the information. This hotel was included in our trip package-which might explain the low cost of the trip! We can't get any money back, but being closer to all the sites is more important than saving a couple dollars! Wasting time on mass transit is not my idea of a vacation!

With that being said, I will start looking at finding something within the city, preferably central to all the sites.

I really appreciate the RS Forum for having wonderful & super-helpful people that are willing to share their expertise!! I am always scouring the different topics & have gotten a lot of very good advice for this trip, as well as for past & future trips. I'm pretty sure I will have a couple more new topics in the coming weeks, and know that you all will be here! Thanks!

If it's already fully paid for, then perhaps no need to pay for another hotel altogether.
Just treat the hotel as a place to sleep, and plan to pay for a few cabs to get back there at the end of the day!
In the morning, the commute into the city is not that bad, although the metro and especially the RER B gets crowded. About 35-40 minutes to St Germain des Prés, 45-50 to the Louvre or the Marais, 1 hour to Montmartre.

Being south of the city, and your trip being in April if I understood correctly, on a sunny morning or afternoon, I wholeheartedly recommend you to go to the Parc de Sceaux. It is a beautifully landscaped park, almost on par with Versailles minus the chateau and the tourists. The cherry trees will be in bloom, and that is quite the sight.

Also, Google Street View has recent coverage of The road in front of Campanile hotel and the one in front of Courtyard by Marriott. The first view is pretty dire, the second one is not that bad.

Ask the tour package seller how you can upgrade to a more central hotel with closer transportation.

If you stay where you are, you can visit the lovely Parc Montsouris at the Cité Universitaire stop on the RER.

To research and plan travel on Paris public transport: https://www.ratp.fr/enhttps://www.ratp.fr/en

Here is a blog with useful information about Metro and other stations which can be a challenge to navigate: https://parisbytrain.com/paris-metro/

It can be frustrating to make plans on the basis of pass availability. Single trips won't break the budget.

Wow-I didn't think you guys would reply-Thanks Again!!
I did a lot of searches for hotels in the city & decided to get one in the Trocadero neighborhood. We have hotel points, so it really wasn't that much & to be able to look out the window or walk across the street and see the Eiffel Tower every day is worth the extra spend! Also, since we only have 3 full days of touring, I want to be able to see everything! I know I would need a couple months for that, but this trip is for checking off the bucket list! I'll be back!!

Since I'll now be staying in the city proper, and from reading other posts, should I take a taxi to the hotel and then buy a transit ticket? Will I only need a Paris Visite pass for zones 1-3, or do you recommend a different one?

Last question, which maybe I should have started another Topic---Since the trip from CDG to city is a set price, do you tip taxi drivers? If so, what is the suggested rate? Do I need cash, or can it be charged?

Paris Visite is an overpriced tourist product. I'd get the ND at the airport and take the train in.

Great that you could change hotels without too much expense! A taxi is still recommended, €53. They take credit cards nowadays. A tip isn't expected (it is typical to round up to the nearest €, but that does not apply here); there is no way to tip if you pay by credit card anyway.

K2 you are so funny.