In AI answers about airlines, Delta carries reliability and service, while American is largely missing

This snapshot, measured on 2026-09-28, covers 25 answers: five questions put to each of five assistants. Reliability was the most common frame. On the reliability question, ChatGPT pointed to Southwest and Delta, with Alaska close behind. Perplexity called Delta "the safest 'default' answer" and named Southwest and Alaska as strong alternatives. Grok said Delta and Alaska "generally rank as the most reliable major US airlines."

Customer service produced a split by cabin class. Several answers cited J.D. Power's 2026 North America study: JetBlue for first/business, Delta for premium economy, Southwest for economy. Alaska appeared as a close second in several segments. For business travel, ChatGPT picked Delta overall and JetBlue for premium-cabin satisfaction. Grok put United first for global business travel. Gemini and Claude gave broader lists of US and foreign carriers.

Two questions pulled the answers away from the tracked US brands. On "Which US airline should travellers avoid?", ChatGPT, Perplexity and Grok mostly named Spirit and Frontier, and Claude asked for clarification. Perplexity's answer to the business-travel question named none of the six tracked US airlines and centered on Singapore Airlines and Qatar Airways.

Delta was named in 20 of 25 answers, and every assistant named it at least three times across the five questions. The answers credited it most often for reliability and operations, then customer experience, then sustainability. Alaska appeared in 14 answers, credited for reliability and operations, customer experience and sustainability. Southwest (13) was credited mainly for customer experience and reliability. United (12) was credited for reliability and for sustainability. JetBlue (12) was credited mostly for customer experience, the J.D. Power first/business result.

On sustainability, the answers that named US carriers named Delta, United and Alaska. ChatGPT's answer cited each company's own sustainability pages and impact report for its claims. Perplexity's answer added JetBlue in the context of SAF and emissions strategy.

American Airlines is the absence. It was named in 4 of 25 answers. ChatGPT and Claude never named it. Where it did appear, Gemini's answer to the avoid question described it as having recorded "some of the highest cancellation rates in the industry," and Perplexity's answer cited at least one 2026 ranking that identified it as worst overall.

PeakMetrics' 30-day news index shows a different order of volume. American had the most mentions (32,299), followed by United (19,798), Delta (13,994), Southwest (7,856), JetBlue (4,710) and Alaska (3,138).

The recent headlines mix operations, finance and incidents. Delta's included a mid-flight pressurization dive alongside stock and earnings pieces. United's ranged from a diverted transatlantic flight to a Flight 93 anniversary and a delivery of new engines. American's featured an unruly-passenger incident and a story on meal vouchers, next to premium-seat and route news. Alaska's were largely route expansion, including a 50th nonstop from San Diego, plus one story on 10 routes cut from the winter schedule. Southwest's covered fares and fees, a first airport lounge plan and a court ruling ahead of trial. JetBlue's covered fuel forecasts, new first-class seating and new Fort Lauderdale routes.

Press volume and answer visibility do not line up in this snapshot. American had the largest news footprint of the six carriers and the smallest presence in the answers. Alaska had the smallest news footprint and was named in more answers than Southwest, United or JetBlue.

The themes differ too. Much of the recent coverage concerns stock positions, incidents, fares and route announcements. The answers built their cases on third-party rankings and surveys: J.D. Power, NerdWallet, WalletHub, Skytrax, DOT data and Business Travel News. What the news index carries and what the assistants repeat are separate records.

The cited domains point to where these answers draw their evidence. The most cited were jdpower.com, businessinsider.com, worldairlineawards.com, nerdwallet.com, thepointsguy.com, aerocorner.com, forbes.com and cnn.com. The source mix was 60% news and 40% review and affiliate. Rankings, survey results and review sites shaped these answers, more than a brand's own announcements.

Two practical steps follow. First, check which third-party studies and comparison pages your category's answers rely on, since the same J.D. Power and NerdWallet results recurred across assistants. Second, track AI visibility and press coverage as separate measures. A carrier with heavy coverage can still be scarce in answers, and the reverse can also hold.

This is a single snapshot from one date. Live answers vary between runs, so treat these findings as a baseline for further benchmark questions, not as a ranking.