I was assuming that you would use Moncton, NB or Charlottetown, PEI for departure/return airports, right? You didn't say but it looks like your only logical ones...?
You can fly into Cancun for $100 less than into Coz and do it in 8 hrs each way instead of 31 hrs! :shocked2:
No, the $100 difference is not enough for going thru Cancun. A lot of Coz regulars do go thru CUN for various reasons but it's always nicer to fly to & from Coz if reasonable overall. I was thinking about a combination of travel time from original airport and cost combined. It looks like...
You can fly Moncton to Cancun in 8.5 hours, return in 8, 1 connection each way, for $481.
If I restrict to Cozumel only, the travel time from Moncton jumps to over 31 hours each way at $582 - or if I restrict to no overnight travel, then the price jumps to $930 based on my findings.
From Charlottetown, West Jet can fly you to Cancun for $652 RT, overnight travel with 20-26 hours travel time just between airports.
From Charlottetown to Cozumel only jumps to $925 still with overnight travel, or $1307 without overnight and with too many connections.
But then I don't know how much of a challenge it is for you to get to Moncton for a 6am plane or from a 10pm return. The distance is less than I travel for 5am departures and 10pm returns but I don't have to cross a channel at home. Maybe I should have asked for more info and preferences from you before suggesting.
I have my search set up to show costs both to Cancun and Cozumel. If I went through Cancun I would definitely add a day staying in Cancun. I likely won't go that way since prices right now are around $480 for Cancun, $550 for Cozumel. That $70 really isn't worth the $60 in transfer costs and 8 hours of total travel (that's valuing my time at $1.25/hour).
Now, if a flight into Cancun comes in at $300 or so then I'll be tempted.
Which origin airport are you using?
I was referring to this comment:
and wondering why someone would need to call to arrange that as it comes up as an option automatically for me.

Good internet shopping. Some have difficulties with that and the Orbitz agents are very helpful, but if you can make it work online with the $200 discount, cool.
Early this month, weather cancelled our flight that was going into Coz. Rather than lose a day we opted to change to a flight that landed in Cancun. It took about 5 hours to get to our hotel on Coz. The ADO bus took just over an hour to get to the ferry terminal, but it only cost $10 per person. The Ferry was $13 per person (one way), and then the cab charged us $8 each from the pier to the hotel (I think we got robbed on that cost). So, if you go that route, make sure you plan for the cost and time.
One more thing... convert your money into pesos! Yes, the shops take $US but you lose out. They typically charge 10-1 pesos for $US, when the true exchange rate was 12.5 - 1. Most all prices are in Pesos, so don't get sticker shock.
If you have more than one person, the cost of a cab becomes more appealing. depending on what you can negotiate. I've heard $25 to $60 one way. Yeah, I always fly in and out of Coz if I can.
He's coming from Prince Edwards Is so I don't think he will be carrying a lot of USD.
There are indeed, and the numbers I gave (a $50-$90 range) may be a little out of date. See Dive With Martin and Aldora. There are of course, differences in amenities between ops as well.
I don't know of anyone charging $50 for a 2 tank boat trip, but with your personal loyalties you might be getting a discount?