However, costs can still rack up quickly, with flight tickets being among the top ... and Most Affordable Times to Visit ...

Airline tickets don't really fall under the "cheap" category — but this guide can get you close. Credit: pexels Deal pricing and availability subject to change after time of publication.

By focusing on the cheapest days of the week to fly, travelers could save approximately 15% on their tickets. The most expensive flight day? Sunday, for both domestic and international travel.

What is the cheapest day to buy plane tickets? Any day of the week. Booking on one day versus another isn't going to make a difference. "That used to be true; it's not true anymore," Keyes says.

with Tuesday emerging as the most economical day based on past flight records. Opting to fly during the early to middle part of the week can result in savings of 13% to 20% on ticket prices ...