Cheapest Days of the Week to Fly – Save Big on Your Next Trip

Ever feel like flight prices change every time you check? You're not imagining it. Airfare is a moving target, and airlines use smart algorithms to set prices based on demand, booking patterns, and even the day of the week. The good news? If you know which days are cheapest to fly, you can save a lot of money — without changing your destination.

Here’s everything you need to know about the best days to fly if you’re looking to stretch your travel budget.

Why Flight Prices Vary by Day

Airlines are in the business of making money, so they track passenger behavior closely. They’ve learned when most people want to fly — typically Fridays, Sundays, and Mondays — and they raise prices accordingly. These are peak travel days when business travelers and weekend trippers are competing for seats.

But midweek? That’s a different story. Fewer people fly, and that often means lower prices.

The Cheapest Days to Fly

Tuesday and Wednesday are consistently the cheapest days to fly, especially for domestic travel. These midweek days usually see lower demand, so airlines drop prices to fill empty seats.

In many cases, flying on a Tuesday or Wednesday can save you anywhere from £50 to £150 compared to weekend fares. If you’re flexible with your schedule, shifting your flight by just a day or two can make a huge difference.

Saturday Can Be a Secret Saver

Most people assume weekends are expensive for travel, and that’s generally true for Sundays and Fridays. But Saturday can sometimes offer hidden savings, especially for return flights.

Why? Business travelers tend to avoid Saturdays, and leisure travelers usually return on Sundays. So if you're flying out on a Tuesday and back on a Saturday, you might just find a sweet spot in pricing.

Most Expensive Days to Fly

Now that you know the cheapest days, let’s talk about when not to fly.

Fridays and Sundays are the priciest. These are peak days for both leisure and business travelers, so expect higher fares and fewer deals.

Mondays can also be expensive, especially for business-heavy routes like London to New York or Manchester to Frankfurt.

If you must travel on these days, booking far in advance or using points can help reduce the cost.

Timing Also Matters

It’s not just the day of the week — the time of day you fly can impact prices too.

Early morning and late-night flights tend to be cheaper. Fewer people want to fly at 6 a.m. or arrive at midnight, which means more savings for those who don’t mind adjusting their sleep schedule.

Also, try to avoid flying on or around holidays, especially Christmas, Easter, and summer school breaks. Even a few days before or after these busy periods can mean hundreds of pounds in difference.

Use Fare Comparison Tools

You don’t need to guess anymore — fare comparison websites make it easy to see which days are cheapest for your route. Tools like Google Flights, Skyscanner, and Kayak have flexible date calendars that highlight the lowest fares.

You can also sign up for price alerts to monitor when prices drop for your preferred travel dates.

One smart way to save is by using a budget-friendly platform like Easyfares.uk. It’s a great resource for finding affordable tickets, especially if you’re booking last minute or looking for midweek travel deals.

Plan Ahead, But Not Too Far Ahead

Booking early can help you find better prices, but there’s a sweet spot. For domestic flights, that’s usually about 1–2 months ahead. For international trips, aim for 2–4 months in advance.

Booking too far ahead (like 6+ months) or too close to your departure date often means you’ll pay more.

Final Thoughts

Knowing the cheapest days of the week to fly gives you a major advantage when planning a trip. By avoiding peak travel days and being flexible with your schedule, you can keep more money in your pocket for the fun parts of travel — like exploring new cities, trying new foods, or booking that dream hotel.

So next time you’re browsing for flights, shift your search to a Tuesday or Wednesday. It’s a simple move that can save you hundreds — and get your trip off to the best (and cheapest) start.