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What are the cheapest airlines for domestic flights in the US?

Are you traveling within the United States and looking for the most affordable option? Here are some of the cheapest airlines you can fly with.

Mike BlakeREUTERS

Warmer weather brings with it the itch to travel, but inflation has put a strain on pockets, making people think twice about planning that trip. If you really want to fly, you can find affordable tickets if you know where to look.

Flight prices are constantly changing, adjusting to demand in real time. There is no single airline that offers the cheapest domestic flights, as prices depend on when you are flying and where you are going, where you are traveling from and other factors. Finding cheap flights requires some searching, a little patience and even luck.

However, some airlines regularly offer lower-priced flights, in addition to offering certain deals.

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The cheapest airlines for domestic flights in the US

JetBlue, Frontier and Spirit often have cheap flights, while airlines like United Airlines and American Airlines also offer domestic flight deals.

According to an analysis by the AirAdvisor website, Frontier Airlines is the cheapest airline, since it records the lowest total passenger revenue per seat mile. The second cheapest airline is Spirit Airlines, known for promoting the base fare, which is simply a charge for your seat and a personal item.

Among the three cheapest airlines is Allegiant Air, which, unlike the other two, only flies within the United States. JetBlue is another of the lowest cost airlines.

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How to find cheap flights

Timing is a very important factor when it comes to buying a cheaper flight. As finding a lower cost flight can be a complicated task that requires patience, being flexible with dates and times can save you a lot.

Additionally, it is extremely important to avoid purchasing last-minute flights, as they are likely to be more expensive. If you plan to travel, we recommend you start planning months in advance. It could also be very useful to buy plane tickets on the days when it is cheaper to travel.

According to NerdWallet, Sundays and Mondays are the most expensive days for domestic travel, while the cheapest are Wednesdays and Thursdays.

Another tip to find cheap flights is to set up price drop alerts in the destinations you plan to visit, as well as travel on the days furthest from a federal holiday.

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