Originally Posted by
mikesaidyes
You don't have to book separate tickets. Use Google Flights and book a multi city. Much easier and keeps it on one reservation. And many airlines DO allow stopovers up to 5 days even to encourage tourism. For instance, Korean Air.
My friend was looking at a ticket Charleston SC - ATL - ICN round trip 1600$
It is CHEAPER for her to fly CHS-ATL-ICN stay in Korea for a week
AND THEN 7 HOUR NONSTOP TO BALI for one week
then back to USA Bali-ICN-ATL-CHS
For 1400$!!!!!!
You've touched upon a common aspect of air fares that is somewhat independent of the stopover angle; KE his pricing power at ICN, but there are many ways to get to DPS from ATL, so they need to price lower in order to remain competitive. In the OP's case, CA can charge a premium for YUL-PEK because it is the only nonstop option, but tacking on ICN should drop the fare considerably with or without a stopover.