At Locals Insider, we might promote and recommend luxurious travel, but that doesn’t mean we enjoy paying over the odds for flights.
Most of our writers use credit card rewards schemes to access low-value travel options, such as flights, hotel stays, and car rentals.
But it’s also helpful to have a trustworthy app that can identify and book the cheapest flight prices available.
Here’s an overview of the cheap flight apps we introduce in this article:
Cheap Flights Finding App | Recommendation |
Skyscanner | The best overall flight app |
Going | The best app for heavily discounted flights |
Alternative Airlines | The best app to book flights now and pay later |
TravelPerk | The best app for booking business flights |
Kayak | The best app for booking more than just flights |
Hopper | The best app for flight price tracking |
So, with that in mind, we introduce you to the best cheap flight apps to use in 2025 and explain how to maximize the internet to lock in the lowest possible fares before jetting off on vacation or business this year.
The best apps for finding cheap flights in 2025
Skyscanner – The Best Overall Flight App
You probably don’t need us to introduce you to Skyscanner, but it sits proudly atop our list as the best place to find and book cheap flights.
Why? Because Skyscanner’s comparison system is the best in the business. It draws in current prices from numerous sources, including the airline’s website, cheap third-party booking sites, and other online marketplaces.
Often, you will see a difference of hundreds of dollars in the flight price from one source to another. You can also see Skyscanner’s rating of each booking source (given by verified customers) to help you decide which site to use for your booking.
We also like how you can track flights on Skyscanner over weeks or months, enabling you to buy when the price drops. Though it’s one of the original flight comparison sites, Skyscanner is still the best in 2025.
Going – Best for Heavily Discounted Flights
Formerly Scott’s Cheap Flights, Going.com is the number one place to find heavily discounted flights from the US to numerous domestic and international destinations.
Download the app for free on iOS or Android, set your home city, and wait for the offers to roll in. The app uses a super-smart algorithm to show you, in real time, where you can fly for up to 90% off the normal rate.
For more targeted searching, you can inform Going of where you want to go and track your flights over an extended period.
You can also instruct Going to inform you when the flight drops below a specific amount. This allows you to book at the lowest possible price, saving you lots of money.
I’ve used Going several times and love the concept. However, it’s not ideal if you’re on a tight schedule and must fly somewhere specific. It’s a better option if you’re open to a new vacation and willing to fly where it’s cheapest.
Alternative Airlines – The Best App for Book Now, Pay Later Flights
Alternative Airlines pioneers a unique booking system and is one of the top-rated cheap flight apps in 2025. You can search for flights on over 600 global airlines and track flights until they drop to a price you consider affordable.
When you’re ready to book, follow the steps and lock in your price. Thanks to the unique booking system, Alternative Airlines allows you to book your flight now and pay for it later, often over several months.
When it’s time to pay, you can use more than 40 methods, not just your debit or credit card. You can use PayPal, other e-wallets, and even crypto.
So, if you find the payment terms on airline websites or most third-party booking sites too rigid, Alternative Airlines is the best option for you in 2025.
TravelPerk – The Best App for Booking Business Flights
TravelPerk is a brilliant way to access reasonable prices and a vast marketplace of domestic and international flights if you regularly fly on business.
The app serves as your booking assistant, helping you choose flights based on very specific criteria. You can also access exclusive corporate flight rates that are only available for TravelPerk business travelers.
Another aspect we like is that it includes a VAT recovery solution within the app. This solution is super easy to use and makes expense accounting much easier.
Though the free app gives you access to the suite, you must upgrade to the $99 per month option if you want to manage travel for your entire team.
Kayak – Best for Booking More than Just Flights
Rather than focusing exclusively on cheap flight apps, it’s helpful to look at apps that give access to more than just flight deals, and this is precisely where Kayak comes to the fore.
Kayak is an online booking platform that combines offers for flights, hotels, cars, and excursions for your upcoming trip. Therefore, you can book your vacation or business trip as a package, saving on every aspect of your flight.
We also love that Kayak offers ready-made vacation packages to US customers, meaning you don’t need to find a flight, hotel, and transfers yourself.
Look at the current packages available and decide where to book. Though flights aren’t always as cheap on Kayak as they are on Skyscanner, this is the app for you if you want an app that takes care of your entire trip rather than just the flights.
Hopper – The Best Flight App for Price Tracking
Hopper is another of the most popular cheap flight apps in 2025, specifically thanks to its price tracking feature.
Whether you’re flying to Dallas or Dominica, you can enter your departure airport and track the flights of all airlines on specific dates.
Hopper will then track the flights for you and provide you with an awesome traffic light system: green for a great price, yellow for an okay price, and red for a high price.
Built into the Hopper algorithm is the app’s ability to predict whether your flights will go up or down in the future. The developers claim to get this right 95% of the time, so while Hopper can’t predict the future, it can help you lock in the best price when booking your flights.
The Hopper app is free to download and highly rated on both iOS and Android devices.
The Verdict: Cheap Flight Finder App for 2025
If you’re looking for the best flight comparison app of 2025, Skyscanner is still number one. However, we love Alternative Airlines because it offers a book now and pay later system, which is unique in the market.
We also love the Going app, particularly if you’re happy to fly to different places. You can search for heavily reduced fares (often 80% or 90%), which is a great way to book a last-minute holiday.
Ultimately, you now know which of the best cheap flight apps to use in 2025 for different reasons. So, download the app for free and lock in great value on your flights in 2025.