Yes, all that is possible in theory. If the flight is full the fare bucket may not open until T-3 hours, which doesn't help you.

I haven't tried on the phones but the gate agents have always been perfectly happy to put me on an earlier connecting flight (for free) if there is space.

(I have done this at both at originating airports before the first flight of the day, and also at the connecting airport if I have no checked-through bags. No one has ever asked for money, but if they did I suppose I'd adopt the normal strategy of looking for a friendlier GA :D)

Hey, I have a CO ticket with CO flight numbers operated by United. My guess is I can´t change this ticket to CO flights using the "same day free change" for One Pass Platinums.

Anyone has been able to do it? or am I stuck with UA flights. The thing is I have a tight conection from CO separate tickets and flights. If I miss my conection to UA, can I ask them to put me on next day as a stand by passenger without them cancelling my ticket for no show? or should I call UA and tell them I will not make my flight?

I believe that you can utilize your SDC options since you're ticketed on CO & the flts are code-shared, -- but only within T-24 of the flts in question! You should call the CO elite line, if you are not offered options at OLCI. Just a reminder that if the fare bucket you're booked in - is not available at the time, you would be responsible for the fare difference, unless there is a schedule change to the flts, in which case you wouldn't be charged the fare difference. The only fee that is waived, as a Plat, is the SDC fee!

Thanks mnmag!!!

My idea is just to switch my flight BOS-SFO-SAN on @6pm to BOS-SAN @6 or 7am through IAH or EWR next day. Any CO flight BOS-XXX-SAN next morning will work. I am booked on CO with CO flight numbers operated by UA on the return and will be arriving at BOS with CO with 20 minutes to make my connection and still need to change from Terminal A to Terminal C.

Well, will work on that CO code share at T-24. Thanks.

I have UA tickets with UA flight number operated by CO.
Can I still ask SDC? Should I call UA or CO? When I booked this tickets, I asked to enter CO OnePass number instead of UA MP number. I'm not sure if that makes difference, though...

You'll get CO rules. Work through them for changes.

My flight is tomorrow at 1pm EWR to MCO. I want to do a SDC to an earlier flight but right now the class of service T is not available. I have already been upgraded for my 1pm flight.

Should I check in now on OLCI or should I wait to see if the class of service changes for the other flights and not check in till closer to my departure time?

Right now most of the flights are in Q COS..

I see the 7:30am flight (CO1592) at T9 so you should be able to change to that one. And I'd bet you get upgraded again as soon as you do. Checking in now should present that option to you and won't affect your ability to change again in the future.

Thank you.. I didn't know that. I checked the site just as you said. I would take any other flight before 1pm but 7:30 is hard because I have to leave here at 5am to get to EWR on time. I am going to wait to see if the other flights open up now that I know how to do it. Thanks again
Marylyn

Thanks sbm12
 

I did everything just as you said and voila I am on the 11:30 flight EWR to MCO... I'm sitting in the PC thinking how helpful you have been.

What I was doing, before your advice, was checking COS by pretending to make new reservations. Each time I checked the COS remained Q.

Doing it your way, by checking in and then requesting a flight change, I was able to score the flight I wanted for free..

Thank you again
Marylyn

I just want to reconfirm something that I've read in this thread, because I'm trying to do similar:

So, I am ticketed on a flight BOS-EWR-PHX for a Tuesday. BOS-EWR leaves at 5p, EWR-PHX leaves at 8p.

Can I SDC the BOS-EWR to a 6a departure Tuesday morning, and the EWR-PHX departure to Wednesday at 7p?

i.e. does the SDC change effectively give +/-24 hours from the flight departure time?

And, I presume the answer to this is no, but if I SDC to the flight on Wednesday at 7p, can I SDC again to another flight after that, say Thursday am?

I believe that what you outlined -- is all doable!^

Sorry to tag on this thread, but I have a question about SDC and stand-by...

I'm on a flight booked in the cheap 'L' class and I might think about a SDC. Right now I'm flying A-B-C-D, where C-D is only operated once a day, and only on CO (no UA flights).

If I try to SDC on the website at 23h59 before the flight and there is L class availability (there is right now) on earlier A-B and B-C flights but NOT on C-D, will the CO website (or an agent) let me SDC on the earlier A-B-C flights and arrive into C earlier than I was scheduled for, but still awaiting the daily C-D flight?

Also, I think it's been answered a few times (from my reading) and if am on PNR with my wife (Silver Elite) but we split out the PNR for upgrade reasons, will she have to pay for the SDC, assuming we can do it?

Cheers - Thanks in advance, I'm still trying to learn all the CO ins and outs.

-jeremy

Airport agents don't have a problem doing that (especially within 3 hours fo departure).

The website won't let you do that. Phone agents should be able to handle it, but some don't know how to do it.

Per the rules, she will have to pay. But if you explain the agent the you were booked in the same itinerary and split for upgrade reasons, they might waive the fee.