Which are the cheapest days to fly? 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*. You will see the cheapest airline tickets to popular destinations. You can filter the results to see only nonstop flights or flights under a certain price to more easily plan your perfect budget. Compare last minute prices of 3,347 Las Vegas hotels - KAYAK. Find the cheapest flights with momondo. We find and compare fares from more than 1,000 airlines and travel sites, giving you the best rates. Compare cheap flight prices from all major airlines and travel agents, and find the cheapest tickets to all your favourite destinations. Book online today. We have you covered when it comes to value travel and the cheapest flights. Browse our options to get the best deals on airline tickets, no matter where you're headed. Book and compare the cheapest flights from all major airlines and online travel agents, and find the best plane tickets to all your favorite destinations. Book great deals on 500+ airlines. Find the right car for every road and budget. Download our app and enjoy instant savings. Phone only deals! Save by calling our travel experts. Use points on eligible flights, hotels, cars, packages, and select add-ons. Redeem points for up to 10% off your booking value. Deep Discounts on Hotels, Flights and Rental Cars. Get Exclusive Savings with Priceline.com. Use KAYAK’s flight search Price Calendar to see which days of the month are cheapest to fly. Simply enter your dates and a color-coded calendar view will appear.