Search cheap flights with KAYAK. Search for the cheapest airline tickets for all the top airlines around the world and the top international flight routes. KAYAK searches hundreds of travel sites to help you find cheap airfare and book a flight that suits you best. Since KAYAK searches many plane tickets sites at once, you can find cheap tickets from cheap airlines quickly.
As a top travel deals publisher, Cheapflights.com serves up plenty of airfare deals from airports across the United States to destinations around the world, not to mention special hotel offers, low-cost car rental options, vacation packages, travel tips and more.
We've all experienced the tiresome, repeated searching when trying to book the cheapest possible flights to any given destination. With endless search engines and continually fluctuating prices, the approach to frugal flight booking is overwhelming. Here's some key tips that will save you time, frustration and most importantly money when booking your next flight.
You're not crazy for thinking that a flight price has changed after searching it a few times in your web browser. Based on the cookies in your browser, flight prices do increase when a particular route is repeatedly searched, as the site wants to scare you into booking the flight quickly before prices get even higher. Always search for flights in incognito or private browsing mode to see the lowest prices.
Finally, no single search engine is consistently perfect (though we typically find the cheapest price on Skyscanner or Momondo). As such, you may need to try a combination of search engines to ensure you're not missing any results. There doesn't seem to be one that gets the cheapest flight 100% of the time.
While many theories exist around booking specifically on a Tuesday to save money, the reality is there is no consistent truth to exactly which days are cheapest to fly. Most of the time it is cheaper to leave on a weekday, though this isn't always the case. Your best strategy is to get a quick visual of prices for a whole month to see what days are cheapest for your specific route. Here's how:
Repeat these steps for your return flight if applicable. You can still book a round trip in one booking, but doing these steps first will let you see which dates are generally cheaper to fly in/out on for your round trip.
Kiwi.com and Google Flights work similarly to Skyscanner, plus they have map views as well, so you can see where the airport is. For tracking when and where is cheapest to fly, Hopper also offer price analysis and track fluctuations (i.e. when is best to fly).
Below is a comprehensive list of budget airlines around the globe. Red indicates true budget airlines while blue implies the cheapest companies available where budget airlines don't exist or aren't plentiful.
If you're heading to any of these parts of the globe, start stalking these airlines. Use Twitter, Facebook or regularly check budget airline webpages to keep you in touch with specials before they sell out. Air Asia, Jetstar, Tiger Air and Ryanair are especially good at having regular deals.
Other sites like Airfarewatchdog, Kiwi.com Deals, and Secret Flying are great resources to stalk for finding mistake and sale pricing, as they conglomerate slashed ticket rates all in one spot. You can also read our detailed how-to guide which spells out how to find mistake fares on your own. One great approach is to search for flights for an entire month using Skyscanner (Tip #3 in this article). This will allow you to easily spot a significantly reduced fare against what's displayed that month, and has twice helped us stumble on error fares ourselves.
If you're flying somewhere that involves a transfer, say from Canada to Australia which typically involves Canada to LA, then LA to Australia, consider that it may be cheaper to book these two legs separately on your own by adding another destination to your trip. It should go without saying that in doing this, you should not book tight layovers. I repeat: do not book layovers that are hours apart! This approach is for those who want to create an additional destination of a few days or more, before catching their next flight. The one exception is when booking with Kiwi.com, who offer their own guarantee on making connecting flights even when not with the same partner airlines.
First, do your research: are there budget airlines unique to the country you're flying out of and where you're headed to Booking with a budget Australian airline (Jetstar) from Sydney to Honolulu, then an American one from Honolulu to Montreal saved us over $400 each when flying back from Australia to Canada earlier this year. This allowed us to create a thrifty five-day stopover in Hawaii on our way back, which was less exhausting and a lot cheaper! Kiwi.com and Skyscanner are both great search engine for revealing cheaper routes like this that involve multiple airlines.
You can even book your own multi-day layovers, essentially allowing you to see 2 destinations for the price of 1. Rather than spend a day sitting in the airport, you can spend multiple days exploring the city you are laying over in. By using Skyscanner's multi-city search feature, you can book a multi-day stopover for essentially the same price as if you had connected directly. To learn how to do this, read our guide on How to Get Free Extended Layovers & Hack One Trip Into Two.
Whether you know exactly where you're going or you just want to find to the cheapest possible country to fly into, Kiwi.com is a great tool to get the wanderlust going and save some big bucks. Hop on their site and enter your departure city, then select a date range to fly. Approximate costs then appear over hundreds of countries around the globe from your departure point, while the list of destinations is sorted by price, allowing you to see the most cost-effective place you can fly.
Where Kiwi.com really shines is the way in which it mixes and matches airlines in order to find the cheapest price. For example, maybe you want to go to Rome, Italy from Washington, USA. A typical flight search engine will only suggest routes coming from a single airline and its partners. An example search on Expedia shows the cheapest route as $631.20 USD via TAP Portugal.
Kiwi.com, on the other hand, will mix and match airlines (including budget airlines) in order to find you the very cheapest route. For long-haul flights especially, this can make a huge difference. The same search on Kiwi.com returns a route at $459.80 USD via JetBlue, Norwegian Air, and Vueling. That's a savings of $171.40 USD, and the travel time is even shorter!
Typically, booking a whole trip with different airlines would be risky. For example, let's say your first flight with JetBlue was delayed, and you missed your connecting flight with Norwegian Air. Because the airlines have no association with each other, Norwegian Air has no obligation to reschedule your flight for free, so you would just lose your money. Kiwi.com instead offers their own guarantee, which covers schedule changes, flight delays, and cancellations. As long as you contact Kiwi.com as soon as you're aware of the delay, they will provide you with an alternate connecting flight, or a full refund, at your discretion. We haven't used this guarantee ourselves, but it certainly sounds like an appealing way to take the risk out of a thrifty flight hack!
As a general rule, you will get better value on your flight tickets if you buy more at the same time, but only if they are with the same airline, or airlines in the same alliance (e.g. Star Alliance). For example, flying a return ticket from New York City to London with United Airlines will be cheaper than 2 one-way tickets.
You can also take advantage of this on multi-city flights. For example, Virgin Atlantic has routes from New York City to London, London to Shanghai, and Shanghai to New York City. If you book all these at the same time using the multi-city search function on Skyscanner, you'll save some serious cash.
Another way to bulk buy flights for less is with round the world tickets and regional passes. These are special tickets offered by airline alliances that let you go around the world, a continent, or a country at a discounted rate. To learn how to book these, be sure to check out our ultimate guide to round the world tickets.
All this said, sometimes a few separately booked flights with budget airlines is still cheaper than what partner airlines can offer. The only way to be sure is to use a site like Skyscanner, punch in your destinations, search as multi-city or return vs multiple one-way bookings, and compare yourself.
While the above search engines are great, they do not always include small airlines, especially in less popularly booked routes and/or in remote regions. If you're flying somewhere obscure, Google search and ask around if there exists a local airline. While in South America we learnt that the LADE Air in Argentina (run by the military) has cheap flights to Patagonia, which is of course not listed in mass search engines online.
Rarely ever do airline tickets get cheaper as your departure date approaches, especially if you need to fly on a certain date. Budget airlines typically offer low rates as a baseline price, and as these tickets sell, the remaining ones increase in cost. This is very typical in Europe and Australia. If you know when and where you're going, don't wait on an unknown sale. More often than not, your biggest savings come from booking far ahead when you can.
Before booking a flight, consider if the rate is cheaper if paid in another currency. Often budget airlines will make you pay in the currency of the country you're departing from, but this isn't always the case. An important note when doing this: make sure you're using a credit card that is free of foreign-transaction fees, such as the Chase Sapphire Preferred Card, otherwise your attempts to save money doing this will be l