Flightlist

A price/time scatter plot would be a great tool to get a sense of how to make the trade-off between travel time and price. I currently have a script to do this myself, and it's very useful, but a pain in the ass to use.

Have a drop down box to pick day of week for deparature. Have all seven days as options (Sun, Mon, Tue, etc.) For example if you are only able to start travel on Fridays you could pick "Friday" from the drop down box. This sounds be pretty simple

Have the option to set two different departure airports, but one destination. This feature would be tremndously useful if you plan to meet a friend or colleague in person who lives in a different city. Often the flights betwen your cities are too e

Split Screen to see Outbound and Inbound flights, side by side, for people who are flexible with travel duration and that way they can match outbound with inbound based on airline, date, day, duration, flight departure/arrival times and offcourse Pr

Allow for negative searches to exclude a location from results, e.g. "South-East Asia -Vietnam". Would also help with excluding internal flights.

Filter results to include total fare including checked baggage. When you live out of two suitcases it's useless to see fares that exclude checked baggage costs, or sometimes even carry-on baggage costs.

the budget slider only acts as a max. i think it may be useful to pull it in on the left so it can filter out the cheaper flights (especially if the limit to show is 100). example - i am looking to fly from LPA to Europe and the majority of the fligh

This used to be my go to OW site for great deals. Now its more expensive and has worse flights than buying from the carrier :(

When searching for flights departing the United states, it includes flights from Guam and Saipan. Which are technically US territories, but it ends up filling the first 100 flights and I do not see any from California, New York or other cities that