Cheap flights: Compare the best low-cost sites
Compare the cheapest flight comparison sites like Google Flights, Kayak & Skyscanner—in one.
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Compare the cheapest flight comparison sites like Google Flights, Kayak & Skyscanner—in one.
STEP 1 : Enter your destination, travel dates, and trip type into our search form (return, one-way, flexible or multi-city).
STEP 2: Compare flights from the World's most trusted comparison sites like Skyscanner, Google Flights, Kayak, Momondo & more.
STEP 3: Once you’ve found the right flight, book securely & safely with your choice of airline or online travel provider.
Cheap flights are low-cost tickets typically offered by both budget and full-service airlines at significantly lower rates than other available fares.
Most airlines use dynamic pricing systems to continually adjust fares based on factors such as demand and availability. Generally speaking, the lower the demand, the lower the price; the higher the demand, the higher the price. This rule applies to both no-frills carriers and traditional airlines.
The most efficient way to start your hunt for the lowest fares is by using a flight comparison website. These platforms search hundreds of airlines and online travel agents to find the best deals for your route.
Many also offer robust tools like flexible date calendars, price predictors, exploration tools and fare alerts that let you track airline ticket costs and book at the optimal moment.
The most famous of these websites include:
Flight comparison sites each employ different partnerships, search features, data sources, and pricing algorithms, which means the lowest final price might appear on one website one day and on another the next.
An effective solution is to compare results from several flight comparison sites to maximise your chances of finding the cheapest ticket from a booking provider you trust.
Flights Finder is a powerful meta-meta search engine that aggregates millions of options from the world's top comparison sites into a single, easy-to-use dashboard, uncovering low-cost flight deals you won't find by searching just one aggregator alone.
Our flight finder lets you compare cheap flight prices head-to-head across leading aggregators, including Skyscanner, Kayak, Google Flights, Momondo, Cheapflights, Kiwi, Aviasales and Skiplagged.
This method gives you a much greater chance of finding the cheapest available fare, uniting multiple giant search engines into a single, comprehensive interface. In fact, in our flight comparison study, we found it is not uncommon to save £50–£100 per passenger simply by cross-checking the best comparison sites, especially on long-haul routes.
In a recent test by Flights Finder, a week-long return flight from London to Phoenix in December showed significant price variation. Skyscanner listed the cheapest non-stop option at £1,959, while Kayak showed the exact same itinerary for £1,856. That is a saving of £103 per person, or £412 for a family of four.
For a detailed comparison study, read our article on Which site has the cheapest flights? and get more pro tips on the Flights Finder blog.
Comparison sites are great at "finding" airfares, but they don't "sell the ticket" themselves. Instead, they act like large search directories which display the cheapest airlines and travel agents offering fares for your route. Once you select an option, you are redirected to the airline or booking provider to complete your purchase.
Yes, using an established comparison engine is generally safe as it is just a search tool, the crucial part is seeing who is actually selling the displayed ticket. By comparing the comparison sites, you also get to compare the different providers behind the prices.
We always recommend checking third-party reviews of travel agents you may be referred to before parting with your hard-earned cash.
Some comparison sites, such as Google Flights, Kayak and Skyscanner, give you the option of booking directly with the airline on most routes, which many people prefer if they don't feel at ease booking through a third-party agent.
Not necessarily. Sometimes, the lowest price routes you to a lesser-known booking provider with questionable customer reviews.
The best course of action is to compare prices across multiple search platforms, then scrutinise the actual booking vendors behind those rates.
In some cases, paying a little more to book with a well-established airline or travel company can be preferable to choosing the absolute cheapest ticket from a seller you do not know.
You can also compare cheap one-way flights, search flexible date flights, explore multi city flights, evaluate business class flights, find first class flights and more.
It is highly unpredictable which site will offer the lowest price. This is especially true once you apply your preferences, such as departing at specific times or adding extras like checked baggage.
Here are the most well-known sites you can compare instantly using Flights Finder:
“Remember to compare comparison sites. Even price aggregators can sometimes show different results.”
“Use at least two comparison sites. Try Kayak, Skyscanner, Momondo and Google Flights.”
“Found differences of nearly £100 between the cheapest (comparison sites).”
“You have the potential to save hundreds on a single flight (by comparing comparison sites)”
To provide a broader bird's-eye view of the current consumer marketplace, Flights Finder also aggregates live data from Cheapflights, Jetradar/Aviasales, Skiplagged, and Kiwi.
The best way to find the cheapest current flight deals from your local departure airport is to use the "Search Anywhere" function on most comparison sites, including Flights Finder.
To view the deals, simply enter your local departure airport, select 'Flexible Search Everywhere' in the destination field, enter your dates, and click search.
You can also utilise our Flights Finder Deals Carousel below to uncover budget-friendly destinations. The carousel will automatically display the best prices uncovered by fellow travellers within the last few days.
A cheap budget fare isn't always the best option. Before booking, consider the extra fees, the airport location, flight amenities and the reliability of the seller.
Add-ons such as checked baggage, seat selection, and priority boarding can significantly increase the cost beyond the base price.
Budget flights are also notorious for charging you for little extras like snacks, drinks, or Wi-Fi access if available. Our advice is to check a full-service airline alongside the budget flight and consider all factors, such as overall comfort and convenience, before making a final decision.
Another thing to consider is that budget airlines usually use much smaller regional airports, which are sometimes located on the outskirts of the city. So you have to factor in the travel cost and time when looking at such flights.
Beware of booking through smaller, less well-known agencies, as it is not uncommon to encounter problems with your ticket after purchase. Always check third-party reviews.
It is important to note that full-service options are often less stressful and can, after factoring everything in, actually work out cheaper.
FlightsFinder is an independent flight comparison search engine designed to make comparing fares across multiple leading flight search platforms simpler and more transparent.
For further coverage and more of our press history, visit the FlightsFinder press room.
Travel agents can sometimes secure cheaper flights by buying tickets in bulk, mixing and matching competing airlines, or lowering fares to encourage lucrative add-ons like hotels and car rentals.
If you find that a travel agent is significantly cheaper on a specific route, we suggest booking through them only after checking independent reviews of their service. However, if the savings are minimal, it is best to book directly with the airline, as dealing with changes, cancellations, and customer service is generally much easier.
A hidden-city ticket is when it is cheaper to buy a flight with a layover and get off at the connection point rather than booking a direct flight. For example, if you want to fly to Rome, you might find it cheaper to book a flight to Türkiye that includes a stopover in Rome. The strategy involves disembarking at Rome and simply discarding the final leg of the journey.
While this travel hack can save you money, it comes with important caveats. First, you cannot travel with checked luggage, as those bags will automatically continue on to the ticketed final destination. Second, this practice violates the airline's contract of carriage, which could result in the airline invalidating your frequent flyer miles or banning you in a worst-case scenario.
Flights Finder displays available hidden-city ticket options via Skiplagged, which you can easily search directly through our all-in-one dashboard.
You can scan for error fares quickly using Flights Finder's broad "Everywhere, Anytime" search functionality as noted in this LA Times article about ultra cheap fares.
We also manually track and post the best mistake fares and flight discounts directly to our community channels. Be sure to follow us on TikTok, Instagram, and YouTube so you never miss a flash deal.
No, it is a persistent myth that individual searches drive up airline prices. Fares are controlled by automated dynamic pricing models that are based on seat availability and global sales. Route studies by FlightsFinder show that prices fluctuate naturally and often decrease during heavy research. Incognito mode is useful for hiding your search history, but it does not unlock cheaper fares.
Yes, it can sometimes be cheaper to book your ticket in a foreign currency due to shifting exchange rates. An effective strategy involves changing the regional point-of-sale market within your chosen search platform to compare localised prices side-by-side.
Flights Finder makes this process effortless. By selecting a different territory from our dropdown country selector, our dashboard instantly surfaces all available aggregator fares published specifically for that geographical market.
Please note that you should always review the provider's terms and conditions before purchasing a ticket through an alternate regional market, and check if your credit card charges international transaction fees.
In our experience, for short-haul flights, the optimal booking window is 1 to 3 months before departure. For long-haul itineraries, it is generally best to secure your tickets 2 to 6 months in advance.
Because airline ticket pricing is not an exact science, we highly recommend monitoring fares using a flexible date calendar or setting up automated price alerts for your specific route. These tracking features can be configured quickly and easily on most major comparison platforms.
Tuesday and Wednesday departures can sometimes be cheaper because demand is often lower, but there is no universally cheapest day to fly.
The most efficient way to verify current rates is to utilise a flexible date calendar. Flights Finder offers an interactive grid calendar that makes it easy to spot the lowest-priced travel days. We recommend using our grid alongside other comparison tool matrices to ensure you capture the absolute best deals available. Beware, however, that a lot of flexible date tools are based on historical searches so it all depends on availability.
The world's most prominent low-cost carriers include AirAsia, easyJet, Eurowings, Jetstar Airways, Ryanair, Scoot, Southwest Airlines, TUI, Vueling Airlines, and Wizz Air.
Flights Finder searches the vast majority of these budget operators via our integrated comparison engines. However, please note that select carriers, such as Southwest Airlines, do not share their pricing data with some third-party comparison sites, but they do show up on Google Flights.
A phantom fare occurs when you spot an exceptionally low price on a flight comparison site, but the moment you click through to book, the fare magically disappears or increases substantially.
While this is highly frustrating, it typically happens because data aggregators pull ticket pricing from multiple external sources, causing a slight cache lag before surfacing the most up-to-date rates. Alternatively, that specific low-cost seat tier may have simply sold out during your search session, as live airfares are constantly traded in real time.
The best workaround is to utilise Flights Finder. Because our dashboard lets you view multiple alternative booking options from various search engines simultaneously, a sold-out fare on one site can be quickly cross-referenced to see if it remains available to book on another platform.
"Our flight data shows that you should cross-check at least four separate leading price aggregators (after applying filters) to be sure you've caught the best deal. If you book through an online travel agent, make sure you check third-party reviews before parting with your money."
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