If I want the lowest average fares in 2026, I’d look first at January, February, August, September, and October. January is the cheapest month for U.S. domestic trips, while August (late month) is the lowest overall, with fares about 29% below December and close to $120 less per ticket on average.
Here’s the short version: prices tend to drop right after the holidays and again after the summer rush. They tend to climb during spring break, summer, Thanksgiving week, and mid-December through New Year’s. So if I can shift my trip by even a few days, I usually get a much lower fare.
What matters most:
- Cheapest domestic months: January, February, September, October
- Cheapest overall month: August (late month)
- Best months for Europe: April, May, September, October
- Worst time for low fares: December, plus Thanksgiving week and June–July
- Best booking windows: 1–2 months ahead for domestic and 3–6 months ahead for international
| Trip type | Best months | High-price periods |
|---|---|---|
| U.S. domestic | Jan, Feb, Sept, Oct | July 4, Thanksgiving, late Dec, Labor Day period |
| Europe | Apr, May, Sept, Oct | Jun–Aug, holiday season |
| Mexico & Caribbean | Apr, May, Sept, Oct | Spring Break, late Dec |
| Asia | Jan, Aug–Oct, Nov | Lunar New Year, cherry blossom season |
Bottom line: if I’m trying to save on flights in 2026, I’d target the post-holiday stretch or the late-summer to early-fall window, set fare alerts early, and avoid peak holiday weeks whenever I can.
Flight Prices by Month in 2026
Flight prices in 2026 follow a pretty familiar pattern: school breaks push fares up, major holidays do the same, and the shoulder seasons tend to open the door to lower prices.
January Through April: Post-Holiday Lows and Spring Shoulder Season
January is the cheapest month for domestic flights. After the holiday rush, demand drops and fares usually fall with it. February stays fairly low too, though Presidents Day weekend is the main exception.
March starts to climb as spring break travel picks up.
April stands out for international trips. Fares are often 15%–20% lower than March, and the stretch from mid-April to early May can bring standout deals to places like Milan (~$323) and Marrakech (~$172). That spring slowdown rolls into a short pre-summer window in May.
May Through August: Pre-Summer Value, Summer Peaks, and August’s Price Drop
May gives travelers a short chance to book at lower fares before summer demand shows up in full. The big exception is Memorial Day weekend, when prices often jump.
June and July are the peak months. School breaks drive family travel, and July 4th adds another wave of demand. Flights to Europe often go above $1,000 round-trip during this stretch, while domestic fares climb well past their yearly averages. After July, prices usually start to ease, first in August and then into fall.
August brings the second big dip of the year as summer travel starts to cool off. It is the cheapest month overall, with average fares of about $579 for domestic trips and $1,320 for international ones – about 29% below December’s peak. The best deals usually show up in the second half of the month.
September Through December: Fall Deals, Thanksgiving Spikes, and December Highs
September and October are two of the cheaper months to fly. In September, domestic fares sit around $211, while flights to Europe are often near $738. That’s a steep drop from summer pricing. October stays lower through most of the month, though prices tick up a bit late in the month as fall foliage trips add demand. Then Thanksgiving and December wipe out much of those savings.
Early November is still manageable, but Thanksgiving week is one of the year’s costliest travel periods. Booking ahead and using Google Flights helps, and it also pays to avoid the days right before and after the holiday.
December is the most expensive month overall. Christmas, New Year’s, and school winter breaks all overlap, which keeps demand high from mid-December into early January. Domestic and international fares both hit their yearly peaks during this period. That is why January drops back down.
| Month | Fare Level | Best For | Watch Out For |
|---|---|---|---|
| January | Low | Domestic budget travel | Limited schedules |
| February | Low | Budget travel | Presidents Day weekend |
| March | Moderate/High | Flexible travelers | Spring break |
| April | Moderate | International trips | Easter, school holidays |
| May | Moderate | Early summer travel | Memorial Day weekend |
| June | High | Families | School vacation surge |
| July | High | Families | July 4th peak |
| August | Lowest (late month) | Budget flyers | Early-month demand |
| September | Low | Domestic & international | Fall demand |
| October | Low | Domestic & international | Late-month foliage trips |
| November | Moderate/High | Early-month travel | Thanksgiving week |
| December | Highest | Holiday travelers | Christmas, New Year’s |
Domestic vs. International Fare Patterns by Month
Domestic and international fares don’t move on the same schedule. A cheap month for a flight to Chicago might be a pricey month for Europe, and the other way around. So use the monthly chart above as your starting point. This section shows how those savings usually break down across domestic and international routes.
Best Months for Domestic Flights
For U.S. domestic flights, January, February, September, and October are usually the best months to find lower fares.
Here’s why: demand tends to fall after the holiday rush, and airlines cut prices to fill seats. In these windows, major hubs like ORD, FLL, and CLT can often drop below $100.
The flip side is pretty predictable. Domestic fares usually jump around:
- Thanksgiving
- Late December through early January
- July 4th
- Late August into Labor Day
International fares follow a different rhythm.
Best Months for International Flights
For international trips, August, September, and October are often strong months for deals. Summer travel starts to cool off, but the holiday rush hasn’t kicked in yet, so airlines have more room to lower fares.
The cheapest months also change by region.
Europe is often cheapest in April, May, September, and October. Madrid, for example, averages about $438 during the April–June or September–October shoulder seasons.
Mexico and the Caribbean also tend to hit lower price points in April, May, September, and October, well outside Spring Break and the Christmas/New Year rush. San Juan fares, for example, dropped to as low as $116 from Newark during Spring 2026 deals.
Asia usually has better pricing in January, August through October, and November, when demand softens between Lunar New Year and cherry blossom season.
And while pricing shifts by market, some Latin American destinations also stand out in their own lower-fare windows. Places like Medellín (~$254) and San Salvador (~$198) are often most affordable from December through March.
Spring 2026 international deals are averaging 22% below 2025 across top affordable destinations. Some routes are down even more, with Cancún falling 35% and Marrakech 31% year over year. That gives shoulder-season travel a clear edge in 2026, especially in the same regional windows already noted above.
Monthly Fare Pattern Table
Here is the route-by-route pattern at a glance.
| Travel Type | Best Months to Search | Why Prices Fall | Highest-Risk Periods |
|---|---|---|---|
| U.S. Domestic | Jan, Feb, Sept, Oct | Post-holiday slump; schools in session | Thanksgiving, Christmas/New Year, July 4th, late August/Labor Day |
| Europe | Apr, May, Sept, Oct | Shoulder season; lower tourism demand | June–August; Christmas market season |
| Mexico & Caribbean | Apr, May, Sept, Oct | Between seasonal peaks; high airline competition | Spring Break (March); Christmas/New Year |
| Asia | Jan, Aug–Oct, Nov | Off-peak regional demand | Lunar New Year; cherry blossom season |
| Central & South America | Sept, Oct, Feb | Shoulder season; post-Carnival lull | Carnival (Feb/Mar); winter holidays |
| Africa | Nov–Mar | Rainy/off-peak safari season | June–October (dry safari season) |
Why Airfare Changes Throughout the Year
Airfare moves with demand. When more people want to fly, prices go up. When airlines still have a lot of seats to fill, fares usually drop. That’s why the lowest prices often show up in winter and early fall.
The Main Demand Cycles That Move Prices
Travel tends to slow down right after New Year’s. A lot of holiday trips are over, planes are less full, and airlines often lower fares in January and February.
Then spring break hits, and prices can climb fast on popular routes through March. Summer brings another jump. June and July are busy because school is out and families start traveling in big numbers.
After that, things ease up again in September and early October. Summer crowds are gone, and demand drops. Then the pattern flips one more time: Thanksgiving and the December holidays usually bring the highest fares of the year.
How to Use These Patterns When Booking
If your schedule has some wiggle room, aim for the lower-demand periods:
- January
- February
- September
- Early October
If your dates are locked in, book earlier. That matters even more around spring break, summer, Thanksgiving, and December, when fares can climb in a hurry. It also helps to watch low-demand months early, since cheaper tickets don’t tend to stick around once demand picks up.
The next step is finding cheap flights by setting alerts before those low months disappear.
How to Catch Cheap Fares Before Prices Rise Again
Monthly trends can point you to the best time to look, but airfare doesn’t sit still. Airlines now change prices several times a day, which is why alerts matter so much during the cheapest months. A low fare can show up in the morning and be gone by lunch.
Use Dollar Flight Club Alerts to Track Low-Month Fares
Alerts help you spot short-lived price drops during slower travel months. Dollar Flight Club tracks live deals and fare trends, then sends email and SMS alerts when fares fall below average.
The months worth watching most closely are January, February, August, September, and October. Those windows tend to bring the best shot at lower fares, but they can move fast.
Members also get access to exclusive deals, travel perks, and discounts from top travel brands.
Because these fares disappear quickly, timing matters:
- Set international alerts 3–6 months before departure
- Set domestic alerts 1–2 months before departure
Key Takeaways: Best Months to Book in 2026
Low-demand months tend to bring the best booking opportunities, and alerts help you catch them before prices climb again. For domestic trips, set alerts 1–2 months ahead. For international trips, set them 3–6 months ahead.
When fares drop in January, February, August, September, or October, move fast. Set alerts early, then book as soon as a low-month fare appears.
FAQs
Why is August the cheapest month overall but not for domestic flights?
August is the cheapest month overall mostly because demand falls off hard in the last two weeks. Summer vacations wrap up, students head back to school, and fewer people are flying.
But domestic flights tell a slightly different story. August still catches the end of peak summer travel, so fares in the first half of the month often stay higher. September and October are often cheaper because they sit fully in the post-summer shoulder season.
How far in advance should I book if I have to travel during a peak holiday week?
If you have to travel during a peak holiday week, try to book 4 to 6 months ahead. That gives you a much better shot at dodging the big holiday price jumps.
For Thanksgiving, the sweet spot is usually 24 to 59 days before departure – with mid-October being the ideal cutoff. For Christmas and New Year’s, plan to book 32 to 73 days in advance, and aim to lock it in by October 31.
If you want a hand tracking prices, fare alerts from Dollar Flight Club can help you spot discounts before fares climb.
Do the cheapest months change depending on where I’m flying?
Yes. The cheapest months to fly can change a lot depending on where you’re going and when people want to travel there.
While January and September are often cheaper on the whole, that pattern doesn’t hold everywhere. Tropical spots can cost more during winter, Europe usually hits its peak in summer, and East Africa safari destinations tend to peak from June to October. Weather, regional events, and local holidays all play a part in ticket prices.
