What is the cheapest day of the week to fly?

Tuesday, Wednesday, and Saturday are the cheapest days to fly in 2026, with average savings of 15 to 30 percent compared to Sunday and Monday according to the Google Flights annual price analysis. The most expensive days are Sunday and Friday, when business travelers and weekend leisure travelers overlap. The savings come from the lower demand on weekdays, which lets airlines offer lower fares. A Tuesday morning departure is often the cheapest single slot in any given week, with a Wednesday return about 10 percent cheaper than a Sunday return. The right way to plan a trip for the lowest cost is to fly out on Tuesday or Wednesday and return on Tuesday or Wednesday.

What is the cheapest month to fly?

The cheapest month to fly in 2026 is mid-January through early February, after the holiday travel season ends, according to a 2026 AAA airfare forecast. Average domestic fares drop to 230 to 280 dollars round-trip in mid-January, compared to 400 to 550 dollars in the peak summer months. The next cheapest months are September (after Labor Day through mid-October) and late November (the week before Thanksgiving through the first week of December). The most expensive months are June, July, and December, when family and holiday travel demand is highest. For travelers with flexible dates, shifting a summer trip to September can save 30 to 50 percent on airfare.

How far in advance should I book a flight?

The best booking window for domestic flights is 1 to 3 months before departure, and for international flights is 2 to 6 months before departure, according to Google Flights 2026 booking data. Booking too early (more than 6 months out) often costs more, because airlines have not yet released sale fares. Booking too late (less than 2 weeks out) also costs more, because airlines raise last-minute fares to capture business and emergency travelers. The cheapest single booking day for a domestic flight is typically a Tuesday afternoon, when airlines release weekly sales and competing carriers match each other within hours.

Are flights cheaper on holidays?

Flights are almost never cheaper on holidays. The day before Thanksgiving, the Sunday after Thanksgiving, and the days around Christmas, New Year, July 4, and Memorial Day are the most expensive days to fly in 2026, with average fares 30 to 80 percent above the annual median. The cheapest holiday windows are the days right after a major holiday, when demand drops sharply. The Sunday after Thanksgiving, the Tuesday after New Year, and the second week of January are the three cheapest holiday-adjacent windows. The right way to plan holiday travel is to fly on the holiday itself, which is often 20 to 40 percent cheaper than flying the day before or after.

Do flight prices go down on Tuesdays?

Yes, flight prices often drop on Tuesday afternoons, which is when US airlines release weekly sale fares. The drop is most visible on Tuesday at 3 PM Eastern, when the major US carriers push their weekly fare sales to their direct booking sites and to the global distribution systems used by online travel agencies. The prices typically stay low for 24 to 48 hours and then climb back up by Thursday or Friday. The right way to book a domestic flight is to search and compare prices on a Tuesday afternoon, book the best fare within a few hours, and avoid searching again for a few days, since most fare search engines track repeat visits and may show higher prices to repeat visitors.

What Are the Cheapest Days to Fly in 2026?

Q: What is the cheapest time of day to fly?

The cheapest time of day to fly in 2026 is early morning departures, typically 5 AM to 8 AM, and late evening departures, typically 8 PM to 11 PM, according to the Hopper 2026 airfare report. The savings are 10 to 20 percent compared to mid-day departures between 10 AM and 4 PM. The reason is that early morning and late evening flights are less popular with business travelers and families, who prefer mid-day departures for convenience. The trade-off is inconvenience, since early morning means a 3 AM wake-up and late evening means a late arrival at the destination hotel. For travelers with flexible schedules, the savings can be 50 to 150 dollars per ticket.

What drives flight prices up and down

Flight prices are driven by three factors: demand, competition, and time to departure. Demand is the biggest factor, and demand follows school calendars, business cycles, and weather. Summer, the December holiday season, and the spring break weeks are the highest demand windows of the year, and fares are 30 to 80 percent above the annual median. Mid-January, late September, and the first week of December are the lowest demand windows, and fares are 20 to 40 percent below the annual median. Competition matters because routes with multiple airlines competing have lower fares than monopoly routes. A New York to Los Angeles flight with 6 competing carriers is typically 30 to 40 percent cheaper than a small city to small city flight with only 1 or 2 carriers. Time to departure matters because airlines use dynamic pricing to charge more for last-minute bookings and discount early bookings that fall within the 1 to 6 month sweet spot.

Google Flights publishes an annual price analysis that confirms these patterns, and the 2026 analysis shows the same three patterns as previous years. Tuesday, Wednesday, and Saturday remain the cheapest days of the week. Mid-January through early February remains the cheapest month of the year. And 1 to 3 months before departure remains the best booking window for domestic flights. The right way to think about flight prices is to plan the trip around the cheapest patterns and book within the right window, rather than hoping for a last-minute deal.

Cheapest days of the week

Tuesday, Wednesday, and Saturday are the three cheapest days to fly in 2026, with Tuesday and Wednesday averaging 15 to 30 percent below Sunday and Monday according to the Google Flights 2026 data. Saturday is the cheapest weekend day, often matching the Tuesday and Wednesday weekday prices. The most expensive days are Sunday and Friday, when business travelers returning home overlap with weekend leisure travelers leaving for trips. The savings are largest for transcontinental and international flights, and smallest for short regional hops where the base fare is low.

The right way to plan a trip for the lowest airfare is to fly out on a Tuesday or Wednesday and return on a Tuesday or Wednesday. A typical Tuesday-to-Tuesday trip saves 100 to 300 dollars round-trip per ticket compared to a Sunday-to-Sunday trip on the same route. For travelers who can only travel on weekends, Saturday-to-Saturday is the cheapest weekend option, saving 50 to 150 dollars per ticket compared to Friday-to-Sunday or Sunday-to-Friday. For business travelers who must fly Sunday evening or Monday morning, the right move is to book the Monday morning flight as early as possible, since Monday morning fares rise fastest as the departure date approaches.

Cheapest time of day

Early morning departures, typically 5 AM to 8 AM, and late evening departures, typically 8 PM to 11 PM, are the cheapest time slots to fly in 2026, with average savings of 10 to 20 percent compared to mid-day departures. The reason is that early morning and late evening flights are less popular with business travelers and families, who prefer mid-day departures for convenience. The trade-off is inconvenience, since early morning means a 3 AM wake-up and late evening means a late arrival at the destination hotel. For travelers with flexible schedules, the savings can be 50 to 150 dollars per ticket.

The right time of day also depends on the route and the season. Short flights under 2 hours have less variation between early morning and mid-day, since the time savings are smaller. Long flights over 4 hours have more variation, since travelers are more willing to pay extra for a mid-day departure that arrives at a reasonable hour. International flights have the most variation, since a red-eye international flight saves money but costs a full day of the trip. The right way to pick the time of day is to balance the savings against the inconvenience, since 50 dollars saved on an early morning flight is not worth it if the traveler has to lose sleep or pay for a hotel the night before.

Cheapest months to fly

Mid-January through early February is the cheapest month of the year to fly, with average domestic fares dropping to 230 to 280 dollars round-trip in 2026, compared to 400 to 550 dollars in the peak summer months. The next cheapest windows are September through mid-October, after Labor Day and before the fall holiday season, and late November through the first week of December, before Thanksgiving and Christmas. The most expensive windows are June, July, and the December holiday season, when family and holiday travel demand is highest. For travelers with flexible dates, shifting a summer trip to September can save 30 to 50 percent on airfare.

The right way to plan a trip for the cheapest month is to look for shoulder seasons that fall between the peak and the trough. For example, a Caribbean beach trip in mid-November is cheaper than a December holiday trip and warmer than a January trip. A European city trip in early October is cheaper than a summer trip and warmer than a winter trip. The shoulder season trade-off is that the weather may be less predictable, but the savings are real and the crowds are smaller. The right time to book a shoulder season trip is 1 to 3 months before departure, since shoulder season fares are less volatile than peak season fares.

How far in advance to book

The best booking window for domestic flights is 1 to 3 months before departure, and for international flights is 2 to 6 months before departure, according to Google Flights 2026 booking data. Booking too early, more than 6 months out, often costs more because airlines have not yet released their best sale fares. Booking too late, less than 2 weeks out, also costs more because airlines raise last-minute fares to capture business and emergency travelers. The cheapest single booking day for a domestic flight is typically a Tuesday afternoon, when airlines release weekly sale fares.

The right way to set a fare alert is to check prices once a week starting 4 months before departure, and to book the first fare that drops to a target price. The target price for a domestic round-trip is typically 20 to 30 percent below the peak fare, which usually hits in the 6 to 8 week window before departure. The right way to compare across airlines is to use a metasearch engine like Google Flights or Kayak, which shows the same flight across all airlines and online travel agencies. The right way to avoid price tracking is to use a private browsing window, since airlines and online travel agencies track repeat visits and may show higher prices to repeat visitors.

Bottom line

The cheapest days to fly in 2026 are Tuesday, Wednesday, and Saturday, with average savings of 15 to 30 percent compared to Sunday and Monday. The cheapest time of day is early morning and late evening, with 10 to 20 percent savings. The cheapest month is mid-January through early February, with 30 to 50 percent savings compared to the summer peak. The right booking window is 1 to 3 months before departure for domestic flights and 2 to 6 months for international flights. The right way to plan a trip is to combine a Tuesday or Wednesday departure, an early morning or late evening time slot, and a shoulder season month. The savings stack: a Tuesday morning departure in mid-January can be 40 to 60 percent cheaper than a Sunday afternoon departure in July.

Photo: Daniel Ramirez from Honolulu, USA, CC BY, via Wikimedia Commons (https://upload.wikimedia.org/wikipedia/commons/c/c3/Facing_West_into_the_Night_%284608143022%29.jpg?utm_source=commons.wikimedia.org&utm_campaign=imageinfo&utm_content=original)

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Written by

Fazlur RahmanAI, Entrepreneurship, EdTech

Fazlur Rahman is the founder of Tutorsbot, building AI-powered tools for learning and career growth. He writes about applying AI in real products and the practi… Read more

Fazlur Rahman is the founder of Tutorsbot, building AI-powered tools for learning and career growth. He writes about applying AI in real products and the practical side of building an ed-tech startup.