United, American and Southwest Cut Flights as Jet Fuel Costs Surge Into the Holidays

United, American and Southwest airlines are trimming December and fourth-quarter schedules after jet fuel prices climbed to roughly $4.51 to $4.53 a gallon, nearly 80% above year-ago levels. United has already pulled select December flights, American says the spike could add about $1 billion to its Q4 costs, and Southwest has cut its 2026 capacity growth plans by about half. Analysts expect fewer nonstop options and higher holiday fares as a result.

What's happening

Airlines affected: United, American, Southwest · Trigger: jet fuel near $4.53/gallon · Timing: Q4 2026, especially December

All three carriers told investors this month they will keep cutting unprofitable, fuel-sensitive routes rather than fly them at a loss. United's leadership was blunt about the shift, saying the airline is "not flying to maximize market share" but to protect profitability, according to FlightGlobal's reporting on the Q4 capacity reassessment.

Why fuel costs are spiking

Current price: ~$4.51–$4.53/gallon · Change: up ~80% year-over-year

Jet fuel hit $4.53 a gallon on September 17, and the global average price rose 6.1% in a single week, according to IATA data cited by Travel And Tour World's coverage of the jet fuel surge. Scheduled US carriers spent $5.89 billion on fuel in July alone, a 43% jump from July 2025, per the same reporting on ConsumerAffairs' analysis of rising fuel costs.

United's December cancellations

Scope: ~5% of scheduled December flights · Risk period: extends into Q1 2027 if fuel stays high

United CFO Michael Leskinen confirmed the airline has already scrapped December flights on thin-margin routes and warned more changes are possible into early 2027, a sharp reversal from last winter's 6.5% capacity expansion, according to TheTravel's report on United's confirmed cuts. United has not published a full list of dropped routes; travelers should check their booking status directly, as detailed in Yahoo Finance's coverage of the 5% schedule reduction.

American and Southwest follow suit

American: ~$1 billion added Q4 cost · Southwest: 2026 capacity growth cut roughly in half

American Airlines CFO Devon May said Q4 fuel prices are running about $1 a gallon above the level the carrier forecast in July, and every one-cent move adds roughly $10 million in quarterly cost, per Bloomberg's report on American's fuel-cost warning. Southwest CFO Tom Doxey said the carrier has already halved its planned 2026 capacity growth and may trim further, as covered by CNN Business' report on airlines cutting cheaper flights.

What it means for holiday travelers

Fares: up 23.4% year-over-year · Peak-date premium: 15%–30% above off-peak

US airfares are running 23.4% higher than a year ago per Bureau of Labor Statistics data, and peak holiday departure dates are commanding 15% to 30% more than off-peak days, according to Travel And Tour World's report on the airfare surge. Fewer flights typically mean fewer nonstop choices and less flexibility if a flight is delayed or canceled — worth weighing against a policy like those compared in our guide to travel insurance for international trips.

How to book smart this season

Advice: book 30+ days out · Watch for: rising baggage and ancillary fees

Advisers recommend booking as early as possible, since waiting until the final weeks before Christmas increasingly means fewer low-fare seats and higher change fees, per The Traveler's report on United's customer warnings. Airlines have also been raising checked-bag fees over the past year, so it's worth comparing total trip cost rather than headline fare alone, as outlined in Karmactive's breakdown of the flight cuts.

People also ask

Why are United, American and Southwest cutting flights in 2026?
Jet fuel prices near $4.53 a gallon — about 80% above last year — have made many lower-margin routes unprofitable. All three carriers say they're prioritizing profitability over capacity, trimming December and Q4 schedules rather than flying routes at a loss.

Will holiday airfares be higher in 2026?
Yes. US airfares are already running about 23.4% above last year, and peak holiday travel dates are seeing 15% to 30% premiums over off-peak days. Fewer available flights from the capacity cuts are expected to add further upward pressure on prices.

Which routes is United Airlines cutting in December 2026?
United hasn't released a full public list. The airline has confirmed it dropped select December flights on thin-margin routes and warned of further changes into early 2027 if fuel prices stay elevated, so travelers should check their itinerary status directly with United.

How much has jet fuel increased in 2026?
Jet fuel reached roughly $4.51 to $4.53 a gallon in mid-September 2026, nearly 80% higher than the same period last year. The global average price also rose 6.1% in a single week in September, according to IATA data.

Should I book my holiday flights now?
Most advisers say yes. With capacity shrinking and fares already elevated, booking at least 30 days ahead improves the odds of securing a lower fare and a seat on preferred dates before airlines trim more low-cost inventory.

Facts checked against current sources as of September 21, 2026. Fuel prices, fares and flight schedules change quickly — confirm details directly with your airline before booking or traveling.