Sun Country Airlines

Terrible experience. Buyer beware.
I tried booking a flight via their web-​site on 12÷3÷14. Picked my flights, selected my seats and selected to prepay my bags. Keep in mind this is directly through their web-​site, not a 3^rd party site like KAYAK and ORBITZ. The itinerary was in «my cart» and upon check-​out it said error and to call their 800 number to speak with a rep. I thought owe my gosh my credit card may have been declined. I immediately called their 800 number indicated on my screen and sitting on hold for literally 28 minutes a customer service rep finally got on the line. I read her the information from my screen. she checked my credit card and said it did not appear declined as she saw my other purchases from the day prior. I read her the flight information I was trying to book and all the information from my-​cart screen including the specific flight numbers, seats selected, extra fees etc. She indicated the fare in my cart was no longer available and the cost would be $ 200 more expensive. I obviously declined the higher fare and expressed my disappointment they do not honor their on-​line fares. I felt as though I was being scammed by a bait and switch operation.
Unfortunately i have traveled many times on Sun Country airlines before and have a few tickets left to use to fly to MSP.
Sun Country has effectively lost a loyal customer that has tried to support a small Minnesota based company. It is sad to see what has become of Sun Country which has deteriorated in service and customer service/​respect to now be, in my opinion, in the same category of Sprint Airlines whereby you need o watch your wallet as they will try to extract funds and charges/​changes through whatever means necessary.
my recommendation is stick with Southwest for your flight needs. They are flexible, responsive and honor their price structures without baiting and switching on you.