Flights Are Already Getting More Expensive After the Jet Fuel Spike, Here's When You Should Book
You've probably seen it. You check a flight price on Monday. By Thursday, it's jumped $150.
It's not your imagination. And it's not just inflation doing its usual thing. Something bigger is happening right now, and if you've got trips planned for 2026, you need to understand it before you open Google Flights next time.
Here's the short version: a surge in jet fuel prices is already rattling the airline industry, driving up fares and expected to hit financial results. And it happened fast. Really, shockingly fast.
Let me walk you through exactly what's going on, and more importantly, what you can actually do about it.
What Just Happened to Jet Fuel Prices?
So here's where things get wild.
On February 27, the cost to fill the fuel tanks of a Boeing 737-800 was about $17,000. Less than a week later, on March 5, it would have cost more than $27,000. That's a 59% spike in under seven days. Think about that for a second, more than half again as expensive in a single week.
Why? The sharp increase in fuel costs followed escalating tensions surrounding the conflict involving the United States, Israel, and Iran. While crude oil prices climbed by roughly one-third since the conflict intensified, jet fuel prices rose at a much faster pace, in some cases doubling over the same period.
And there's a structural reason jet fuel hurts more than crude oil. Jet fuel can rise by a greater degree than crude because it includes the price of processing and ever-more difficult and costly transportation from oil fields to refineries to airplane fuel tanks.
According to IATA's Jet Fuel Price Monitor, the global average jet fuel price last week rose 58.4% compared to the week before, reaching $157.41 per barrel.
That's not a blip. That's a shock to the entire aviation system.
How Much More Are Tickets Going to Cost You?
Let's get to the number that actually matters to you.
The cost of plane tickets may jump as much as 9%, according to Willie Walsh, director general of the International Air Transport Association.
But 9% is kind of an abstract number. Let's make it real.
Ticket prices for trips to Europe from Canada may rise by $100 to $200, and up to $400 for flights to Asia, according to aviation management experts at McGill University. And that's on top of prices that were already climbing.
The impact of rising jet fuel costs is already being seen around the world, including one report that showed a Korean Air flight from Seoul to London jump from $564 to $4,359.
Yeah. That's not a typo.
And here's the thing that might surprise you: even airlines that are well hedged are already raising fares to protect their profit margins. Carriers such as Air New Zealand and Qantas do not operate flights to the Middle East but are still being hit by higher fuel costs because jet fuel prices are determined by global markets.
There's no hiding from this one, no matter where you're flying.
So... When Should You Actually Book?
Okay. Deep breath. Here's where I want to give you something genuinely useful, not vague "book early!" advice, but actual guidance you can use today.
The Goldilocks Window Still Applies (But It's Tighter Now)
In normal times, there's a booking sweet spot experts call the "Goldilocks Window." Not too early, not too late. For off-peak travel, booking about one to three months in advance is typically when cheap flights have the highest likelihood of popping up. For international travel, two to eight months in advance.
But here's the thing, with fuel surcharges being added right now, waiting feels riskier than it used to. UBS analysts noted that the environment is "conducive for passing along fare increases," and that if jet fuel stays higher for longer, it should push off-peak capacity lower, which means fewer cheap seats.
My honest read on this? If you have a summer trip in mind, the time to look is now, not in May.
For Domestic Flights
- Book 1–3 months out for off-peak travel
- Book 3–5 months out for peak summer (July, August) travel
- For spring break, 43 days before departure tends to be the cheapest day to book on average
For International Flights
- Book two to eight months out for international trips with cash, and as soon as seats open if paying with points, award inventory runs out before cash deals
- For peak summer international travel, lean toward the 4–6 month range
- Europe is particularly vulnerable right now due to Gulf refinery disruptions
Does the Day You Book (or Fly) Actually Matter?
Honestly? A little. But less than most people think.
The old "book on Tuesday at midnight" thing is basically a myth at this point. Airlines adjust pricing dynamically now, it's all algorithms, all the time. But the day you fly can still make a real difference.
Flying on a Friday instead of Sunday can save up to 8%, according to Expedia's 2026 Air Travel Hacks Report. Tuesday is the cheapest day to fly in terms of raw average cost, coming in at about 14% less than Sunday departures.
And here's one that surprises a lot of people: flying on the holiday itself, Christmas Day or Thanksgiving Day, is almost always significantly cheaper than the surrounding days. If you can stomach the emotional weirdness of being on a plane while everyone else is carving turkey, your wallet will thank you.
Expedia's 2026 data also shows that Friday has become the cheapest day to book, driven by reduced business travel at the end of the week.
7 Practical Ways to Fight Back Against Rising Airfares
Let's get tactical. Here's what actually works right now:
1. Set Google Flights price alerts, today, not "when you're ready" Google Flights lets you track prices for particular destinations and will send you an email when airfare drops. Even after you book, keep checking prices to see if you can get a credit for any price difference.
2. Book one-way tickets when it makes sense There are times where one airline might have the cheapest outbound flight and a different airline might have the cheapest return flight, so booking two one-ways can actually beat a round-trip fare.
3. Cash in those reward miles NOW Whether you collect air miles or points on a credit card, now's the time to use them to try and offset the extra costs airlines are adding. Seriously, stop saving them for "a big trip someday." This is the big trip moment.
4. Be flexible on dates and use fare calendars Use fare calendars to check price fluctuations across the month. Being flexible about departure dates is one of the most reliable ways to find lower prices.
5. Consider alternate airports Flying into a secondary airport near your destination often opens up cheaper options, especially when primary hubs are pricing aggressively.
6. Use AI-powered tools like Hopper and Kayak Explore AI-powered travel tools like Google Flights, Hopper, and Kayak Explore can predict price trends, flag cheaper dates, and even warn you about likely weather delays or crowded travel days.
7. Get travel insurance, and read the fine print With this much uncertainty in the market, insuring your trip is a must. But one important caveat: acts of war and civil unrest are typically excluded from standard travel insurance coverage, so make sure you know exactly what your policy covers.
Should You Avoid Certain Routes Right Now?
Honestly, this depends on your risk tolerance, both financial and personal.
Flights between Europe and South Asia, Australia and Western Europe, and even certain transatlantic services that rely on aircraft and crew rotations via Gulf hubs are all experiencing irregular operations. Travel agents are reporting longer minimum connection times, more forced overnights, and greater reliance on secondary hubs.
If you have flexibility, routing around Gulf hub connections might save you both money and headaches. Transatlantic routes that don't depend on Middle East layovers are holding up better.
Also, there's a potential supply issue looming beyond just prices. One analyst warned that "we're weeks away from maybe flight cancellations or delays due to lack of jet fuel, rather than months." This isn't guaranteed, but it's a risk worth factoring in for critical trips.
Look, nobody can tell you with certainty that booking right now versus in three weeks will save you $200. Airline pricing is complicated, geopolitics is unpredictable, and anyone claiming to have a crystal ball is selling something.
But here's what is clear:
- Fuel costs are up sharply, and airlines are already raising fares
- Industry experts say that during periods of geopolitical unrest, fuel prices often remain elevated for extended months
- The tools to fight back, price alerts, flexible dates, miles redemption, are all free and available to you right now
- Waiting for prices to "calm down" is a gamble that isn't paying off for most travelers
If you've been thinking about a trip, stop thinking and start looking. Set up those Google Flights alerts. Check your miles balance. And if you see a good fare… book it.
Because in this market? A good fare today is better than a great fare that never comes.
FAQ SECTION
Q: Are flight prices going up in 2026? Yes. Jet fuel prices surged over 58% in a single week in early March 2026 due to the Iran conflict, and airlines including Cathay Pacific have already announced fare increases. Ticket prices could rise up to 9% globally.
Q: Should I book flights now or wait? For summer travel, booking now (1–5 months out depending on destination) is advisable. Waiting risks higher prices if fuel costs remain elevated.
Q: What is the cheapest day to fly? Tuesday is the cheapest day to fly by average fare, coming in about 14% cheaper than Sunday. Fridays are currently the cheapest day to book.
Q: Do airline miles protect against rising airfares? Yes, redeeming miles for award seats can bypass cash fare increases. Book award travel as early as possible since inventory is limited and disappears faster than cash deals.