Yes—under U.S. rules, airlines and travel agencies must advertise the ticket price including all applicable government taxes, fees and mandatory airline surcharges. They cannot advertise a base fare and leave those unavoidable charges until checkout. This applies wherever an airfare is advertised, including websites, emails and the booking process. DOT’s ticket-buying guidance explains the requirement.
But “full ticket price” does not mean the price includes every extra you might need. Bags, advance seat selection and other optional services can still cost more.
What must be included—and what can cost extra?
The distinction is between charges required to buy the advertised transportation and services you choose to add.
| Must be included in the advertised fare | Can be charged separately when optional |
|---|---|
| Applicable government taxes | Checked baggage or a paid carry-on allowance |
| Mandatory government and airport fees | Advance seat selection |
| Mandatory carrier-imposed surcharges | Meals, Wi-Fi or priority services |
| Other unavoidable charges to purchase the advertised ticket | Travel insurance |
DOT identifies baggage fees, advance seat selection, meals, Wi-Fi and insurance as examples of optional services. Airlines and ticket agents cannot preselect paid optional services and make you remove them: you must affirmatively agree to the service and its fee. See DOT’s rules on optional purchases.
A service can be optional under the pricing rule even if it matters to your trip. If you need a checked suitcase, compare fares after adding that bag, rather than assuming the advertised total covers it.
Can airlines show the base fare separately?
Yes. They may itemize the base fare, taxes and fees, but as of November 1, 2026, the total must remain more prominent. The current regulation says individual charges cannot be displayed prominently or in the same or larger size as the total. A tax breakdown explains the price; it does not replace the required total. 14 CFR §399.84(a)
Also watch for “each way” offers. If that price is available only with a round-trip purchase, the advertisement must clearly and prominently disclose the round-trip requirement near the fare. It cannot describe that restricted offer as a “one-way” fare. 14 CFR §399.84(b)
Does the 2026 proposal remove full-price advertising?
Not under DOT’s main proposed amendment. Its July 1, 2026 proposal would allow fare components to appear as prominently as the total and remove the specific font-size restriction. That amendment would retain the requirement to display the total price, including taxes and fees.
However, DOT also seeks comments on an alternative: repealing the full-fare rule in whole or in part. The proposal therefore considers broader changes too; it is not limited to presentation. Read DOT’s proposed rule.
Neither option is permission already in force to hide mandatory charges. The current regulation above still contains the stricter prominence and size requirements.
How to compare fares—and question a surprise charge
Before paying, check three things:
- The same journey: one-way versus round-trip, passenger count and currency.
- The extras you actually need: baggage and any paid seat selection, in both directions.
- The flexibility: refund and change conditions. A fare-class code is a clue, not a substitute for reading the ticket’s terms.
If an unavoidable charge appears only at checkout, save screenshots of the original quote, itinerary and final breakdown. Ask the airline or ticket seller to explain it. If the issue remains unresolved, you can file a complaint with DOT. DOT uses complaints to monitor compliance, though it does not investigate every individual pricing complaint.