United States Government Accountability Office
Highlights of GAO-17-756, a report to
congressional requesters
September 2017
COMMERCIAL AVIATION
Information on Airline Fees for Optional Services
What GAO Found
Since 2010, selected U.S. airlines have introduced a variety of new fees for
optional services and increased some existing fees. For example, each of the 11
U.S. airlines that GAO examined introduced fees for “preferred” seating, which
may include additional legroom or a seat closer to the front of the economy
cabin. Some of these airlines have also introduced new fees for other optional
services, such as fees for carry-on baggage and priority boarding. Since 2010,
many of the selected airlines have also increased existing fees for some optional
services, including fees for checked baggage and for changing or cancelling a
reservation. From 2010 to 2016, U.S. airlines’ revenues from these two fees—
the only optional service fees for which revenues are separately reported to the
Department of Transportation (DOT)—increased from $6.3 billion in 2010 to $7.1
billion in 2016 (in constant 2016 dollars).
Airline officials cited competition from other airlines and customer demand,
among other things, as factors they consider when deciding whether and how
much to charge for optional services. According to officials from 9 of the 10
selected airlines GAO interviewed, the process of “unbundling” allows
passengers to customize their flight by paying for only the services that they
value. Airline officials said that charging fees for optional services allows the
airlines to offer lower base airfares to customers. For customers traveling with
bags, however, GAO’s review of airline-related economic literature showed that
on average customers who paid for at least one checked bag paid more in total
for the airfare and bag fees than they did when airfares included checked
baggage. Officials from the 10 airlines said they also consider customer demand
and willingness to pay when setting prices for optional services, and officials
from 8 of these airlines noted that competitors’ prices for similar services are
another factor used in determining the amount of fees.
Since 2010, DOT has taken or has proposed a range of actions to improve the
transparency of airlines’ fees for optional services. These actions include: (1)
monitoring and enforcing airlines’ compliance with existing transparency
regulations; (2) collecting, reviewing, and responding to consumers’ complaints;
(3) collecting additional data on revenue generated from fees; and (4) educating
airlines and consumers about existing regulations and consumer rights related to
optional service fees. Consumer and industry stakeholders, such as online travel
agents’ representatives, told GAO that DOT’s regulations requiring certain
airlines to disclose optional service fees on their websites have improved
consumer transparency. However, these stakeholders also told GAO that there
are additional transparency challenges, such as when consumers search for and
book flights through online travel agents. Because optional services are not
always available for purchase and because fees for such services are not always
disclosed through online travel agents, these stakeholders argue that consumers
are not always able to determine the full cost of their travel and compare costs
across airlines before they purchase their tickets. While transparency challenges
still exist, DOT has ongoing regulatory proceedings, some in response to prior
GAO recommendations that may resolve some of these issues.
View GAO-17-756. For more information,
contact Gerald Dillingham, Ph.D., (202) 512-
Why GAO Did This Study
Since 2008, U.S passenger airlines
have increasingly charged fees for
optional services that were previously
included in the price of a ticket, such
as checked baggage or seat selection.
Consumer advocates have raised
questions about the transparency of
these fees and their associated rules.
In April 2011, DOT issued a final rule
requiring, among other things, that
certain U.S. and foreign airlines
disclose information about optional
service fees on their websites.
GAO was asked to review issues
related to optional service fees in the
U.S. aviation industry. This report
describes: (1) how selected U.S.
airlines have modified their offering
and pricing of optional services since
2010, (2) the factors that selected U.S.
airlines consider when determining
whether and how much to charge for
optional services, and (3) actions DOT
has taken since 2010 to improve the
transparency of optional service fees
and views of selected aviation
stakeholders about these actions.
GAO reviewed 2010 and 2017 airline
data on optional services fees charged
by the 11 largest U.S. passenger
airlines; analyzed airline financial data
from 2010 to 2016 reported to DOT;
reviewed economic studies examining
the effects of bag fees on fares; and
reviewed applicable laws. GAO
requested interviews with
representatives of all the 11 selected
U.S. airlines; 10 agreed to be
interviewed and one airline declined.
GAO also interviewed DOT officials,
consumer advocates, and other
aviation industry stakeholders. DOT
reviewed a draft of this report and
provided technical comments that GAO
incorporated as appropriate.