Ignore “travel experts” who swear yielding the cheapest fares means flying on a specific day, searching alternate routes, comparing search engines, booking months early, etc. No one has time for this sort of headache, and scouring hundreds of sites is stressful.
Flying back on a Tuesday will be notably cheaper than Sunday. One of the best places to check fares is Google.com/flights, which posts fares in real time on every day of the month, so you can see every low fare for your route on their monthly calendar (with cheapest fares highlighted).
Use Your Frequent-Flier Miles NOW