Airline Advertising Compliance: How To Preserve The Website Record DOT Asks For

In airline advertising compliance, an inquiry from the U.S. Department of Transportation (DOT) or the Federal Trade Commission (FTC) usually comes down to one thing. Namely, what a specific page showed customers on a specific date. The airline has to answer from its own records.

In 2015, British Airways could not show DOT what its website had displayed. A traveler searching its U.S. website for a one-way award flight from Philadelphia to Munich was quoted $23 in taxes and fees. One click later, the same trip came to $285.80. He recorded the booking on video and filed a complaint with DOT.

British Airways fixed the error within three days of a consumer complaint in January 2015, but it could not say when the error started, only that it might go back to December 2013. DOT assessed a $40,000 civil penalty in Order 2016-3-9, half of it deferred. The bigger risk was to the brand. The order names British Airways throughout and is still public, and with no record of the page, the airline’s own estimate became the public account of how long it showed customers the wrong prices.

In practice, airline compliance for advertising means being able to show what your site displayed and when. This guide covers which regulator you answer to, how inquiries begin, what the 2026 rule changes mean for pages already published, and how to build a website record that holds up.

Aviation Regulatory Compliance For Advertising Sits With DOT

DOT regulates airline advertising. Under 49 U.S.C. § 41712, it can investigate any airline or ticket agent for unfair or deceptive sales practices. Its Office of Aviation Consumer Protection (OACP) also enforces the full fare rule, 14 CFR 399.84, which says an advertised fare must show the full price the customer pays.

The FTC cannot take enforcement action against airlines, because Section 5(a)(2) of the FTC Act excludes them. Ticket agents and online travel agencies are not excluded, so both agencies can act against them. The FTC’s fees rule (16 CFR Part 464) also covers hotels and other short-term stays sold by travel sellers.

The FTC can still study airlines. On October 28, 2026, it sent Section 6(b) orders to nine companies, including Delta, United and JetBlue, asking whether fares change based on a traveler’s loyalty status or personal data. Delta and JetBlue have both said they do not set fares from personal data.

If personalized pricing does lead to enforcement, DOT would handle it. In a September 4, 2026 notice, DOT said carriers “should avoid determining pricing based on individual-specific data.” If a traveler says they were shown a different fare, regular captures of the public fare page give the airline a dated record to respond with.

Figure 1. Who regulates airline and travel advertising in the US, by product line

The regulator depends on the market and the product line. DOT handles airfare advertising in the US, and the Advertising Standards Authority (ASA) handles advertising in the UK. Both ask for the same evidence, namely the offer as the customer saw it on the date in question, with the total price and the disclosures next to it.

OACP Enforcement Starts With Complaints And Website Monitoring

Most inquiries start outside the company. OACP, DOT’s Office of Aviation Consumer Protection, says most of its investigations begin with a consumer complaint (January 2026 guidance). It also checks airline and ticket agent websites and ads on its own.

DOT can also ask to see what you publish after a settlement. In a 2009 consent order with tour operator Gate 1 (Order 2009-7-5), DOT required the company to submit every ad it ran in the following year, including “print-outs of all versions of its Internet website.”

Fines can reach $75,000 per violation (14 CFR 383.2), and each day a violation continues can count separately. Under its 2026 guidance, OACP has proposed sending a warning letter instead of opening an enforcement case when a company fixed the problem before OACP found it. To qualify, you need to show when the problem appeared and when the fix went live. This timeline is key to avoid violation fees.

Past DOT airline fines show what a full fare rule case can cost. DOT fined Southwest $200,000 in 2014 for advertising fares with no seats available, and Frontier $60,000 in 2016 for showing base fares in the same font size as the total fare.

The Airline Advertising Rules Changed In 2026, So Each Page’s Date Decides Which Rule Applies

Proving those dates matters more this year, because the rules themselves moved. Figure 2 lists the three 2026 changes that affect how airline and ticket agent pages are judged.

Figure 2. DOT actions in 2026 that changed airline advertising requirements

For now, the full fare rule (14 CFR 399.84(a)) still applies as written. And when it does change, older ads will still be judged by the rule that applied when they ran (Order 2012-10-1).

DOT generally has five years to bring a penalty case (28 U.S.C. § 2462). That means a fare page from March 2026 could still be questioned in 2030, long after the site has been redesigned. The only way to answer is with the March 2026 page itself.

How To Preserve Airline Website Records For Airline Advertising Compliance

Airline websites change every day, and many prices only appear after a search. That makes some pages easy to miss. These six steps cover the places airline advertising records most often fall short.

1. Map every page that states a price. Include fare search results, the booking path through payment, baggage and fee pages, and award and member-only pages. The British Airways error reached only logged-in Executive Club members, so a review of the public site would have missed it.
2. Natively capture and replay the booking journey from selection to payment. British Airways’ first results page displayed correctly. The $285.80 total appeared one step later.
3. Set capture frequency by how often pages change. United Airlines, for example, has several hundred webpages that change on weekdays, edited by several departments (United Airlines case study). A weekly capture would miss most of those changes. Fare displays and promotions need daily captures (more on archive frequency).
4. Store each capture in a form that proves its date. A WARC file (ISO 28500) with a timestamp and SHA-256 hash, kept on WORM storage, shows when the page was captured and that nobody has edited it since. A screenshot shows neither.
5. Record when corrections go live. Keep a capture of the page before and after each fix. Those dates are what you need to qualify for a warning letter instead of a penalty.
6. Keep records for five years and be ready to export them. DOT can bring a case up to five years after an ad ran. A regulator may also ask for every version of a page from a set period, so your archive should export any date range in one go.

How Chronicle Answers Each Question An Inquiry Asks With A Dated Capture

Chronicle runs airline website archiving on a schedule and replays each page as it appeared on its capture date. In United’s case study, Chronicle’s crawler scanned the full site and captured new or changed pages on a set schedule, with no manual step from the editorial team. Each capture was stored in WARC format on WORM storage with a SHA-256 hash and timestamp, and pages replayed from the preserved source, so dropdowns and fare filters worked as they did for the customer.

Figure 3. What a DOT or FTC inquiry asks for, and what Chronicle supplies

To learn more about Chronicle or see it in action, get in touch with our team.

Frequently Asked Questions

What does airline compliance cover for fare advertising?

For fare and fee advertising, compliance centers on DOT’s prohibition on unfair and deceptive practices in 49 U.S.C. § 41712 and on the price advertising and fee disclosure rules in 14 CFR 399.84 and 399.85. Lodging sold by travel agents alongside flights falls under the FTC’s fees rule.

Does the FTC regulate airline advertising?

Not through enforcement. Section 5(a)(2) of the FTC Act excludes air carriers from the FTC’s enforcement authority, and DOT regulates airline advertising under 49 U.S.C. § 41712. The FTC can still study airline practices, as it did with its October 2026 personalized pricing orders to Delta, United and JetBlue.

Is DOT’s full fare advertising rule still in effect?

Yes. As of October 2026, 14 CFR 399.84(a) applies as written. DOT’s July 2026 proposed rule would loosen it, but no final rule had been published at the time of writing.

How long should an airline keep copies of its website advertising?

Plan for at least five years. Federal civil penalty actions generally must begin within five years of the violation under 28 U.S.C. § 2462, and a DOT consent order can add its own reporting period.

Will screenshots satisfy a DOT request for website records?

DOT has accepted printed copies, as the Gate 1 order shows, but screenshots tend to fail on coverage and dating. They rarely capture every version over a period or the pages past the first click, and they carry no hash value to show the image is unaltered.

Who investigates airline advertising in the EU and UK?

In the EU, national authorities enforce the pricing rules, and the Consumer Protection Co-operation Network, which links national enforcement authorities across the EU member states, Norway and Iceland, coordinates cross-border cases. In the UK, the Civil Aviation Authority enforces airline consumer law, including legislation on price transparency. The Competition and Markets Authority can issue infringement notices, impose fines of up to 10% of annual global turnover (or £300,000 where this is higher), and order consumer redress without going to court. The ASA handles complaints about ads under the UK advertising codes.

Are fines capped by the number of complaints?

No. DOT counts violations, not complaints. For a person other than an individual or small business, the maximum penalty under 49 U.S.C. 46301(a)(1) is $75,000 per violation, and continuing violations are counted per day. One complaint can open a case: in British Airways’ case, the airline learned of the problem from a consumer complaint on January 12, 2015.

Does DOT publish consumer complaints?

Yes. DOT publishes complaint counts by airline in its monthly Air Travel Consumer Report, although DOT notes that filing a complaint does not mean the airline broke the law. Consent orders are public as well. Order 2016-3-9 names “British Airways PLC” throughout and is publicly available at regulations.gov.

Can Hanzo Chronicle run this without much support from internal teams, with retention policies in place?

Yes. The compliance team chooses which pages and booking journeys to capture and how often, and Chronicle runs the captures automatically from then on. It preserves each page in its native environment, so it replays later as the customer saw it, with working dropdowns and forms. Each capture is stored in WARC format on WORM storage with a SHA-256 hash and kept for the retention period your policy sets.