I should have researched Justfly.com before purchasing the ticket at Justfly.com.
According to the BBB, their warning is true about Justfly.com. Regarding their excessive fees if you make a mistake. See link below.
https://www.bbb.org/akron/news-events/news-releases/2015/07/bbb-issues-warning-about-justfly.com.
I thought i booked the right trip. But apparently, the return trip has a 24 hour layover from Taipei to san francisco. I had to changed the flight, and they charged me $300+ for it. I had to negotiated a little bit and they reduced to $250. The ticket was ~$750, instead I had to pay $1,009+.
Read the BBB link included. Be very careful. It's better to avoid Justfly.
Hi Tony,
Thank you for taking the time in reviewing our services. As a low budget travel agency, we aim to offer the best price possible to our clients. This could mean having itineraries with longer layovers and a change of airport. However we do still offer many other flights that are made available to us by the airline to give our clients a large variety of itineraries to chose from.
As an agency, we as well have separate fees from the airline when it comes to any changes or cancellations. There is a brief description of these fees at the bottom of your confirmation email as well as in our Terms and Conditions (https://www.justfly.com/terms-and-conditions) It is always passengers responsibility to verify the itinerary they are booking to make sure all is okay if you want to avoid paying any fees and fare difference.
Please let us know if you have any further questions or concerns. ΒΈ
Kind wishes,
JustFly Team