Summer 2026 has brought two simultaneous shocks to the airline industry.
The first: aviation fuel prices have nearly doubled since the start of the war in Iran.
The second: Spirit Airlines shut down permanently on May 2, becoming the first major U.S. carrier to disappear in 25 years.
For travelers flying out of the United States, the outlook is the toughest it has been in a decade. But the deals did not vanish — they simply moved.
That’s the central finding of the Dollar Flight Club summer 2026 report, published by the fare alert platform after analyzing more than 500,000 fare records across more than 65 U.S. departure airports.
Why Flights Are More Expensive This Summer
The trigger was the closure of the Strait of Hormuz, the strategic waterway between Iran and Oman through which roughly 20% of the world’s oil passes.
Before the conflict, which erupted on Feb. 28, jet fuel cost around $100 per barrel. By April 2026, it had surpassed $185.
According to the Argus US Jet Fuel Index, published by Airlines for America, aviation fuel prices have surged 95% in the United States since the war began.
Major carriers offset some of the impact by raising fares and cutting routes.
United announced a 5% capacity reduction for the next six months; Delta cut roughly 3.5%. KLM, Lufthansa, and Cathay Pacific also pulled flights.
The hardest-hit routes were transatlantic, which burn more fuel per passenger, and fares to Europe are running approximately 20% higher than last year.
Smaller carriers were hit harder. The low-cost model depends on razor-thin fares to attract customers, making it nearly impossible to pass fuel surcharges on to travelers without killing demand.
Spirit Airlines, for instance, couldn’t survive. Its restructuring plan had assumed a fuel cost of roughly $2.24 per gallon in 2026. By late April, the price had nearly doubled.
The shutdown left approximately 60,000 daily passengers without service and triggered the cancellation of around 300 flights almost overnight.
Where the Deals Are: Latin America and the Caribbean Hold Firm
The report’s key insight is that rising fuel costs don’t affect all destinations equally.
Short-haul flights — particularly to the Caribbean, Mexico, and Central America — are holding up far better. They burn less fuel, and low-cost carriers are still competing aggressively on price for these routes.
Mexico, Puerto Rico, Costa Rica, Jamaica, and the Dominican Republic are regularly showing round-trip fares below $400 from a wide range of U.S. cities.
Canada also stands out as a strong alternative. Toronto, Montreal, Vancouver, and Calgary are showing summer fares below that same threshold, with the added appeal of cooler weather.
Among beach destinations, Puerto Vallarta and San Juan are showing minimum fares below $300 — roughly 30 to 40% cheaper than flying to Hawaii.
Cancun and the Dominican Republic are staying below $400 despite being peak-season destinations.
Europe: Expensive, but Not Impossible if You Adjust the Calendar
The report doesn’t sugarcoat Western Europe.
Summer fares to Paris, Rome, London, and Barcelona range from $1,700 to $2,100 round-trip — about 20% more than last year. Demand has not softened, leaving airlines with no reason to cut prices.
The exceptions are farther north. Reykjavik, Dublin, and Stockholm offer the most affordable fares, with minimums between $350 and $500 in the off-season.
Eastern Europe — Prague, Budapest, Vienna — sometimes dips below $600, though availability is limited, offering a budget-friendly glimpse into one of the most livable cities in the world.
The report’s most useful takeaway: traveling in late August or September cuts European fares by 40 to 60%.
The Spirit Effect on the Domestic Market
Within the United States, the domestic market remains the most accessible option — but there’s an important caveat.
Fort Lauderdale and Orlando, Spirit’s two biggest strongholds, are still holding round-trip fares below $150 from cities in the East and Midwest. But that may not last.
The report estimates that fares on routes Spirit operated could rise 20 to 25% over the next three to six months, as other low-cost carriers absorb the capacity Spirit left behind.
The president of the World Airlines Association warned this week that rising fuel costs will likely push more carriers into bankruptcy and accelerate industry consolidation throughout this year and into next.
The airline industry has weathered fuel crises before, but the speed of this one — prices doubling in just two months — is unprecedented since the aftermath of Sept. 11.
For now, summer 2026 still has affordable options. They’re just not where most travelers expected to find them.
