Planning a trip is full of enthusiasm, but finding affordable airfare? That’s very tricky. If you have ever wondered when is the best day to book flights to save money, let this guide help you. With flight tickets constantly getting more expensive, knowing the right time to click “purchase” can save you hundreds of dollars.
Know Why Timing Matters When Booking Flights
Most airlines uses “dynamic pricing” for their tickets. This means the ticket prices go up and down based on how many people want to fly on a certain day. When demand is high (like Friday evenings or holidays). Prices shoot up. When demand is low (like Tuesday mornings), prices drop.
Understanding this pattern is the first step to finding cheaper flights.
What is the Best Day to Book Flights?
According to recent data from major travel companies, Sunday is consistently the best to book flights. Studies show that booking on Sundays can save you up to 10% compared to booking on Fridays.
The reason is simple. Airlines often release deals and adjust prices over the weekend. By Sunday, you are more likely to catch these price drops before business travelers start booking again on Monday.
Other Good Days to Book a Flight
While Sunday is at the top spot, Tuesday and Wednesday are also good options to book your flight. Many airlines release sales on Monday nights or Tuesday mornings, which makes midweek a sweet spot for finding deals.
The best day in the week to buy airline tickets generally falls between Sunday and Wednesday. Avoid booking on Fridays and Saturdays when prices tend to be higher.
How Far in Advance Should You Book?
Timing is not just the day of the week; it is also about how many days before your trip you book.
- For Domestic Flights
The best time to book flights within the United States is typically 39 days before departure. This bracket can range from 21 to 59 days out. It is the best balance between availability and price.
Do not wait until the last minute. Prices usually spike within three weeks of your travel date, as airlines know that business and urgent travelers will pay a higher price for the tickets.
- For International Flights
You will have to plan more in advance for an international trip. Book 49 days before departure for the best deals, with the ideal window being 18 to 73 days out. For trips to Europe, consider booking even earlier (two to five months ahead).
Best Days for Departure
Booking on the right day is just half the battle. The day you actually fly matters too.
Cheapest days to fly:
- Tuesday
- Wednesday
- Saturday
Most expensive day to fly:
- Friday
- Sunday
Flying midweek can save you nearly $100 per ticket compared to weekend travel. If your schedule allows it, the best day to flight out is usually Tuesday or Wednesday. During this window, the business travelers aren’t filling up planes.
Special Considerations for Delta Flight Bookings
If you are flying with Delta, there are some airline-specific tips worth knowing.
When Should You Book Delta Flights?
The best day to book flights on Delta follows a general pattern: Sunday through Wednesday, when fares are lowest. However, Delta is known for releasing Delta deals throughout the week, so staying flexible with your travel dates can be helpful.
Best Time to Book Delta Flights
The best time for booking Delta flights is similar to other airlines: aim for 21 to 60 days before domestic travel. Delta’s website clearly states that fares are usually lower on Tuesday, Wednesday, and Saturday, with Friday and Sunday being the most expensive.
Best Time to Purchase Delta Airline Tickets
The best time to purchase a Delta Airlines ticket depends on your destination:
- Domestic routes: Book three to eight weeks ahead.
- International routes: Book two to five months ahead.
- Holiday travel: Book by mid-October (especially for Thanksgiving and Christmas).
Using the Delta Low Fare Calendar
Delta offers a handy tool called the Delta low fare calendar. This feature shows you the cheapest dates to fly within a given month. Simply:
- Visit Delta’s website: https://www.delta.com/
- Select “Shop with Miles” or regular search.
- Choose “Flexible Dates.”
- View the calendar showing prices across different days.
This tool makes finding low cost Delta flights much easier than manually checking each date.
Delta Vacation Packages
Don’t overlook Delta vacation packages. Sometimes booking a flight plus hotel together through Delta Vacations can actually be cheaper than booking separately. These bundles often include extra perks like:
- Resort credits
- Free breakfast
- Airport transfers
- Discounted activities.
The best Delta vacation packages are typically found during off-peak seasons and when booked several months in advance.

Common Myths About Booking Flights
Last but not least, let’s bust some myths you might have heard about the best time to book flight tickets.
Myth 1: Book at Exactly 3 PM on Tuesday
While Tuesday used to be special decades ago when airlines manually updated prices once weekly, this is no longer true. Airlines now adjust prices in real time, 24/7.
Myth 2: Wait Until the Last Minute for Deals
Last-minute deals are rare. Airlines know desperate travelers will pay anything. Prices typically increase dramatically within three weeks of departure.
Myth 3: Booking Months Early Always Gets the Best Price
Too early can be as bad as too late. The sweet spot is 21-60 days for domestic and 2-5 months for international. Booking 11 months early won’t necessarily save money.
Myth 4: Weekday Morning Flights are Always Cheaper
While early morning and late evening flights sometimes cost less, the day of the week matters more than the time of day. A Tuesday afternoon flight often beats a Friday morning flight.
Best Time to Book Flights for Holiday Travel
Holiday flights require special planning, but this quick guide can help you choose the right window.
| Thanksgiving | Christmas | Summer Vacation | |
| Book by | Mid-October (around October 14th). | Late October (by Halloween at the latest). | March or early April |
| Cheapest days to fly | Tuesday before Thanksgiving, Saturday after. | December 23rd or Christmas Day itself. | Late August |
| Most expensive | Wednesday before, Sunday after. | December 22nd and January 2nd. | July and early August |
So, when is the best day to book flights? Generally, Sunday gives you the best chance at low prices, with Tuesday and Wednesday as solid alternatives. Combine this with booking 21-60 days ahead for domestic travel (or 2-5 months for international), and you’re already ahead of most travelers.
Frequently Asked Questions:
While the myth is not entirely accurate, most airlines come up with sales on Tuesday, and the demands to travel during the weekday is also very low. So, you will find tickets comparatively cheaper on Tuesdays.
Not really. Mid-October actually falls into the “shoulder season.” That’s a spot between peak summer travel and the holiday rush.
The best time of the week for flight booking is between Sunday and Wednesday. During this window, you will find airfare to be a lot cheaper.
If you want to score the absolute lowest prices, then the best time to book Delta flights is typically Tuesday or Wednesday. Saturday flights can also offer good value, especially for leisure travelers.
For routes like Newark to Wilmington, NC, booking 60-90 days out is wise. The price follows the same pattern, but there can be some regional variations.
No, this is a myth. Airlines adjust prices throughout the day, not at a specific time.
Subscribe to Delta’s email newsletter, follow them on social media, use the Delta app for mobile-exclusive offers, and check their deals page weekly.
Tuesday, Wednesday, and Saturday are the best days to fly out. Weekday fly-outs can save you up to hundreds of dollars as compared to flying on weekends.F
Usually no, but they can find complex multi-city routes and package deals that might save money. They’re also helpful for complicated itineraries.
Round-trip is usually cheaper. Only book one-way tickets when you’re unsure about return dates or if you’re flying into one city and out of another.






