While Tuesday is the cheapest day to book a flight in general, this is not the case for all airlines. In fact, Sunday is the best day to book a flight with American Airlines, JetBlue, and United Airlines.
As previously mentioned, booking airfare on Sunday is cheaper than other days of the week, especially Fridays. Be willing to fly mid-week. Since Thursdays tend to be the cheapest day to fly, see if you can tweak your travel plans so you depart and fly home during the week instead of on weekend days. Set price alerts.

What is the cheapest day of the week to book flights?
According to a study by Expedia, the cheapest day to book flights is Sunday. When comparing Sunday flight prices to Friday, Expedia found that travelers save 5% on domestic flights and 15% on international flights. Sunday has been the best day of the week to book flights since before 2020.

What is the cheapest airline to fly right now?
Currently, Frontier Airlines offers the lowest-priced flights around United States.

Which is the most cheapest flight booking site?
1. Google Flights. For ease, speed and features, Google Flights is arguably the best website for flight searches. ...
2. Kayak. Like Google Flights, Kayak searches hundreds of other websites and flight booking platforms to find the best deal. ...
3. Expedia. ...
Capital One Travel. ...
4. Kiwi. ...
5. BookWithMatrix.