Friday is generally the cheapest day to buy airline tickets, while Sunday is typically the most expensive, with around a 3% price difference. For U.S. domestic flights, Saturday often offers slightly lower fares and Monday tends to be the highest, with savings of about 2% when booking on Saturday instead*.

Based on 2024 and 2025 global flight data, the most affordable time to book a domestic economy flight is usually 15 to 30 days before you travel, while prices tend to be highest when you book 180 days out or more. For international economy trips, fares are often lowest 8 to 14 days before departure, with the most expensive bookings again appearing when you book more than 180 days ahead.

If you prefer some buffer, booking 31 to 45 days out can still offer strong savings compared to locking in flights too far in advance*. Keeping an eye on fare trends, comparing airlines, and setting price alerts are all reliable ways to catch a good deal.

Friday is typically the cheapest day to fly internationally, with fares averaging about 8% lower than on Sundays, which are usually the most expensive. For U.S. domestic trips, Tuesday often offers the best value, with prices up to 14% lower than Sunday*. This gives travelers a clear sense of when to book if they want the best chance at lower fares.

The cheapest month to fly can vary depending on where you're going, so finding the best rates largely comes down to avoiding peak travel times for your destination. If you're looking for cheap international flights, the most expensive month tends to be December, while the cheapest is August with cheap flights in August offering potential savings of up to 29% relative to December. Cheap domestic flights work a bit differently, with December being the most expensive and January being the least expensive with cheap flights in January offering savings of up to 19%*.

Compare cheap airline ticket prices at a glance from a large inventory of carriers on Expedia. You can get cheap flights by staying flexible with travel dates, carriers, and nonstop/layover flights to get the best price. Insider tip: Become a member (it's free!) to earn rewards back on every booking. We make your travel stress-free and source incredible airfare deals so you can sit back, relax, and start your vacation or business trip.

Mixing and matching airline tickets and fare types could help save money on airfare to your destination. Easily compare prices for carriers, arrival and departure dates, airplane cabin class, and more when you book with Expedia. Booking your plane ticket on a Sunday, and departing on Friday, could possibly save you money* based on historical data. You can also filter for flights based on your budget, such as looking for cheap flights under $200 specifically.

You can sometimes find great last‑minute airfare deals, but the savings depend on your route, cabin type, and how flexible you are. Prices often shift based on demand and remaining seat inventory, so staying open to different travel dates, nearby airports, or choosing between nonstop and connecting flights can help you spot better offers on Expedia. Whether you're booking a quick business trip or a spontaneous getaway, you'll find options for last‑minute, roundtrip, and multicity flights all in one place — along with the tools to compare and secure the best available price.

Booking your flight with Expedia is easy, as all you have to do is implement your travel dates, departure destination, like flights from Atlanta or flights from Hartsfield-Jackson, and arrival destination into the search. Then, all the available flights for those dates and destinations will appear. You can use search filters to narrow down the results as well based on a variety of factors like the airline, number of stops, departure time, and policies like seat choice and refundable bookings. Additionally, travelers may alter their search for round-trip flights, one-way flights, and multicity flights.

Several factors go into any flight booking, and you'll need to keep an eye out for them all to ensure that you get the travel time, luggage policy, airline, and class you want. Consider which airport is closest to your ultimate destination (travelers to Los Angeles may prefer flights to LAX over flights to PSP, and make sure that the flight will accommodate all the luggage you plan on bringing. Additionally, consider the different flight classes including economy flights for functionality and premium flights if you want to enjoy a more relaxing experience.

The cheapest place to travel can be in the same country, like Chicago. Flights to Chicago are fairly affordable no matter where you're coming from in the continental United States. Flights to Las Vegas tend to be pretty affordable as well. While the Vegas airport isn't a hub for any major airline, it does have plenty of competition to keep prices relatively low.

Staying within a strict budget still allows you to find plenty of cheap flights, even to destinations like Puerto Rico. In fact, flights to Puerto Rico don't even require U.S. citizens to have a passport. Flights to Alberta and other destinations in Canada can be fairly affordable as well.

Flight tickets can sometimes be cheaper at the last minute, but it largely depends on how close to departure you book, your destination, and the fare type. In general, prices tend to rise as the departure date approaches, especially for popular routes and Economy cabins, though occasional last‑minute deals do appear based on airline inventory and demand patterns.

Yes, several fully refundable flights are available and will be labeled as such right on your search results page in green text. You may also filter for fully refundable flights specifically to eliminate all flights from your results that don't qualify. Just make sure to check the specific policy for each flight before booking.

Booking with Expedia makes finding a flight easy, but that's just the beginning of everything you can take advantage of. We also offer hotels, car rentals, and even activities that you can purchase with package deals available for travelers planning more than one aspect of their trip at a time. Plus, Expedia offers stunning cheap flight deals that can help you save with ease.