In airline branding and advertising, the baseline "Let your heart fly" is associated with which airline company according to this business awareness question?

Introduction / Context:
Airlines use emotional taglines or baselines to differentiate their services and build a strong brand identity. This question asks which airline uses the line "Let your heart fly". Such taglines are designed to appeal to feelings of freedom, adventure and connection, and are often repeated in television commercials, print advertisements and online campaigns. Recognising which tagline belongs to which airline is a common element of business and marketing awareness, especially relevant for candidates preparing for management and service industry exams.

Given Data / Assumptions:
- The baseline given is "Let your heart fly".
- The options are Fly Emirates, Indian Airlines, Jet Airways and Lufthansa.
- The question asks which airline company is associated with this line in its advertising.
- We assume the focus is on brand communication in India and on taglines that appeared prominently in campaigns.

Concept / Approach:
"Let your heart fly" is a brand baseline associated with Jet Airways, an Indian airline that positioned itself as offering warm service and a pleasant flying experience. The phrase evokes emotional freedom, suggesting that the airline enables customers to follow their hearts and travel where they desire. Fly Emirates and Lufthansa use their own well known global taglines describing their networks and quality of service, while Indian Airlines had older, more functional branding that later integrated into Air India. Among the four options, Jet Airways is the only airline commonly linked with "Let your heart fly" in business awareness materials.

Step-by-Step Solution:
Step 1: Identify that "Let your heart fly" is a soft, emotional tagline suitable for a passenger airline. Step 2: Recall that Jet Airways' advertising in India highlighted comfort, hospitality and emotional connection, and used this phrase as a baseline. Step 3: Compare this with Fly Emirates and Lufthansa, which emphasise global reach and premium service under different taglines, and with Indian Airlines, whose branding is more traditional. Step 4: Select Jet Airways as the correct answer.

Verification / Alternative check:
To verify, picture Jet Airways advertisements seen over the years, including posters in airports and television spots. The phrase "Let your heart fly" appears with the Jet Airways logo in many of these materials. On the other hand, Fly Emirates is known for lines like "Hello Tomorrow" and other globally focused slogans, while Lufthansa concentrates on German engineering and service reliability. Indian Airlines has historically used governmental or national identity themes rather than this emotional baseline. This mental comparison confirms that the tagline in the question belongs to Jet Airways.

Why Other Options Are Wrong:
Fly Emirates: A major international airline, but its taglines emphasise global connectivity and do not match the specific phrase "Let your heart fly".
Indian Airlines: A domestic carrier merged into Air India branding, not known for using this modern emotional tagline in recent campaigns.
Lufthansa: A German airline with its own set of brand lines, not associated with the exact baseline given in the question.

Common Pitfalls:
A common error is to choose Fly Emirates or Lufthansa simply because they are international and aspirational, without recalling their actual taglines. Another pitfall is to underestimate the branding efforts of Indian carriers like Jet Airways and assume that emotional slogans must come from foreign airlines. To avoid such mistakes, it is useful to make a small list of airline taglines and revise them, focusing especially on those that appear in Indian airports and media.

Final Answer:
The airline whose advertising baseline is "Let your heart fly" is Jet Airways.