Washington D.C. (including Baltimore) - 40 Min. to change flights at IAD?

I have 40 min. to change from a domestic flight (arriving Terminal D) to an international flight to Paris (likely leaving Terminal C). I am concerned that it will be too tight since first flight has 81% on time. Flying United on both legs, but to change to earlier flight, it is $250 + flight.

Considering just booking on a different airline for first leg to get to IAD earlier. If I do that, will second leg of international flight to Paris be canceled if I don't show up for first leg of trip. Any other advice on a better way to handle?

Hi,
Welcome to flyertalk!^

If you already have your ticket XXX-IAD-CDG ( on United) then buy another ticket XXX-IAD ( say Delta for example) getting into IAD earlier than United then as you did not fly XXX-IAD on United then your entire flight ( inc to CDG) will be cancelled.

Booked on one ticket if your flight gets into IAD too late for you to make the CDG flight then United will have to get to to CDG ( this may be on the next day's flight though)

I am not sure on the Minimum Connecting Time at IAD for United ( this question might be better on the United forum) but if the ticket has a connecting time less than MCT ( ie schedule change) then united should have to change flights free of charge to enable a MCT.

Good luck

Regards

TBS

if you have a single ticket and it is a "legal" transfer, ua will get you there, or eat it and get you there. is there a later flight? if you booked your own separate tickets , you may have problems. 40 min from domestic to intl is not easy at iad.

not enough information for intellegent reply.

I have 40 min. to change from a domestic flight (arriving Terminal D) to an international flight to Paris (likely leaving Terminal C). I am concerned that it will be too tight since first flight has 81% on time. Flying United on both legs, but to change to earlier flight, it is $250 + flight.

Considering just booking on a different airline for first leg to get to IAD earlier. If I do that, will second leg of international flight to Paris be canceled if I don't show up for first leg of trip. Any other advice on a better way to handle?

Welcome to FT!
As others have noted, you may have problems if you book separate reservations. If on one ticket (PNR) you should be fine. Walking from D to C is eminently doable in 15 mins ... it's basically a long corridor.
Also, can I suggest that you try doing a search ("IAD connection") if you have question like this in the future. There are multiple threads like this one http://www.flyertalk.com/forum/washington-d-c-including-baltimore/985498-connecting-iad.html Invariably, someone has asked the question before you and it's been answered.

Hi,
Welcome to flyertalk!^

If you already have your ticket XXX-IAD-CDG ( on United) then buy another ticket XXX-IAD ( say Delta for example) getting into IAD earlier than United then as you did not fly XXX-IAD on United then your entire flight ( inc to CDG) will be cancelled.

Booked on one ticket if your flight gets into IAD too late for you to make the CDG flight then United will have to get to to CDG ( this may be on the next day's flight though)

I am not sure on the Minimum Connecting Time at IAD for United ( this question might be better on the United forum) but if the ticket has a connecting time less than MCT ( ie schedule change) then united should have to change flights free of charge to enable a MCT.

Good luck

Regards

TBS
It is not doable if the IAD-CDG is oversold. UA requires that you be at the departure gate and available for boarding at T-30. That allows you 10 minutes to disembark and walk to your departure gate. If the inbound is delayed at all, you've missed the connection.

I say oversold because it's easier to bump a delayed connecting pax than anybody else because no IDB is payable (and a potential VDB doesn't need to be supported).

While it's true that a misconnect is UA's problem, it's also OP's problem because he doesn't go out until there's a flight with an available seat. Depending on why he's headed to CDG, that can pose issues.

Dealing with the same thing here. I had a 41min connection from
MIA-IAD-CDG that was a little too close for me. I switched to an earlier flight. Problem now: what to do at IAD for 11h.

Dealing with the same thing here. I had a 41min connection from
MIA-IAD-CDG that was a little too close for me. I switched to an earlier flight. Problem now: what to do at IAD for 11h.

Take a look here http://www.flyertalk.com/forum/washington-d-c-including-baltimore/532409-help-suggestions-long-iad-layover.html. There are a couple of other similar threads. Search "IAD layover" or similar.

It all depends. Your inbound flight may get in early or may get in late. They may park in a gate next to your intl flight or a 20 minute walk from it. The intl flight might be on time or may be late.

In general 40 mins is on the low side. I like at least 50.

Assuming the inbound is on time, is A-D doable at Dulles with a 44min connection? And is it quicker to take the train from A-C and walk, or to wait for the A-D shuttle?