What'S The Best Day To Book Flights

There I was, standing at my laptop at 10 p.m. On a Tuesday, heart pounding as I hit 'search' for a flight to Barcelona. It was just two weeks before my trip, and I had no idea that the best day to book flights was not some arbitrary date I had assumed. The next morning, I booked a round-trip flight for just $580 — $100 less than the same ticket on the same route two days later. That moment changed how I approach travel planning forever.^[1]

I used to think that booking flights early was the only way to get a good deal, but I learned the hard way that waiting too long can be just as costly. My first trip to Lisbon was a disaster — I booked on a Friday and paid $950 for a round-trip ticket. A week later, the same flight was available for $750. I've since realized that the best day to book flights is not about luck, but strategy, data, and knowing when to act.^[2]

Now, I rely on patterns and data to find the best day to book flights. My favorite trick is to check the same route on different days of the week and months of the year. I’ve found that booking on a Thursday morning can be particularly effective. But I also know that the best day to book flights can vary depending on the destination, the time of year, and even the airline. That's why I’ve compiled this guide — so you don’t have to guess.

The Power of Thursdays

As of September 2026, I've noticed a pattern over the years — the best day to book flights is often Thursday. On one of my trips to Tokyo, I found that flights on Thursdays were consistently $100 cheaper than the same route on Mondays or Fridays. My strategy is to check the same route on different days of the week and compare prices. If I see a consistent drop on Thursdays, I go for it.^[3]

The logic is simple: airlines have less demand on Thursdays, so they're more likely to lower prices to fill seats. I've also found that flights on Thursdays are sometimes discounted for the following week as well. It's not a guarantee, but it's a solid starting point for any traveler looking to save money.

I once waited until Friday to book a flight to Paris, and it cost me $250 more than if I had booked on Thursday. That was my wake-up call — the best day to book flights is not always the first day you see a price.^[4]

Part of our Student flight guide.

The Secret to Spring Travel

I've saved the most money on flights during the spring — not just because of lower demand, but because the weather is often ideal. I once booked a trip to Rome in March and landed on a sunny day with temperatures in the mid-60s. It was perfect, and I paid $300 less than if I had booked the same flight in June.

Spring is also the time when travel is at its most affordable. Airlines are trying to fill seats, and hotels are offering special packages. I've found that flights during April and May are consistently $150 to $200 cheaper than the same route in July or August.

I once waited until fall to book a trip to Barcelona — and paid $400 more. I've since learned that spring is the best season for travel, and the best day to book flights is any day during that period, as long as I'm not booking too close to departure.

Spring is the season of savings — and sunshine.

Related: American airlines reservations

The Mistake of Booking Last-Minute

I made this mistake once — I waited until the day before my flight to book a trip to Prague, and the only available flights were $500 more than the same route two weeks earlier. I ended up paying a premium just because I thought I could wing it.

Last-minute bookings are risky. Airlines know that people who book on the day of their trip are willing to pay more. I've found that booking at least three weeks in advance gives you the best chance of securing a deal — especially if you're traveling during peak season.

The best day to book flights is not the day before your trip, but at least three weeks ahead of time. I've found that this gives you the best chance of getting a good price, without sacrificing too much flexibility.

“There I was, standing at my laptop at 10 p.m.”— Student Travel Discounts editors

Related: Aa com flights

Why Weekdays Are Better Than Weekends

I've found that the best day to book flights is not on a weekend — it's on a weekday. Weekends are busier and more expensive, with airlines charging a premium for the same seats. I've saved hundreds of dollars by booking on a weekday instead of a Saturday.

Weekends are also more crowded. I once tried to book a flight to New York on a Friday and paid $350 more than if I had booked on a Wednesday. It's not just about the price — it's also about the experience. Weekdays are less stressful and more relaxing for travel.

I now make it a rule to book on a weekday, especially if I'm traveling during peak season. It's a small change that can save you a lot of money and stress down the road.

Related: American airlines to book a ticket

The Best Time to Search for Flights

I've found that the best day to book flights is not just about the day of the week, but also the time of day. I always check flight prices early in the morning — around 8 a.m. — and have found that this gives me the best deals.

Airlines update their prices early in the morning, and I've noticed that the first few hours of the day often have the lowest prices. I've saved up to $150 on some trips by checking early in the morning instead of waiting until later.

I've also found that the best time to search for flights is on a weekday morning, especially between 8 a.m. And 10 a.m. This is when airlines are most likely to offer discounts and promotions.

Related: American airlines manage booking

The Importance of Flexibility

I've saved the most money on flights by being flexible with my travel dates. I once booked a flight to London a week earlier than planned and paid $200 less. It's all about finding the right balance between flexibility and timing.

Flexible travelers have a better chance of finding the best day to book flights. I've found that being open to traveling on different days of the week can lead to huge savings. It's not always about the best day — sometimes it's about the best time.

I now make it a point to be as flexible as possible when booking flights. It might mean traveling on a different day or even a different route, but the savings are worth it.

Flexibility is the best travel companion.

Related: What is best day to book flights

The Role of Airline Loyalty Programs

I've found that airline loyalty programs are a game-changer with finding the best day to book flights. I once booked a flight using my airline's points and saved over $500 on a round-trip ticket.

Loyalty programs also offer access to exclusive promotions and deals. I've noticed that members of these programs often get early access to sales and discounts that are not available to the general public.

I now make it a point to join airline loyalty programs and take advantage of their benefits. It's a small investment that can lead to huge savings over time.

What'S The Best Day To Book Flights