PARTLY

As of 13 August 2026, AI can only partly compare flight prices for your business trip.

This still needs a person who signs their name to it.

Can you do it?

5 minutesto a draft.

30 minutesto something you’d act on.

Cost, all in£0

Skill neededchat-fluent

Who has to check ityou

What the alternative costsMerlin AI is an AI research and writing assistant living in your browser, but no price is provided here.

If this goes wrong: you choose a fare with hidden baggage, change or connection restrictions, or miss a business commitment because the displayed price or timing was not checked.

What to actually do

  1. Hand it to a person

    The route this page recommends

    A person who owns the outcome does this end to end, worth it when the failure is dear.

  2. Use a tool built for this

    Second choice
  3. Do it yourself

    The distant third

    A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

    How to actually do it

    1. Open the airline or booking sites you normally use and search the required route, dates, cabin and baggage options without booking.
    2. Gather the company travel policy, budget, approval requirements and any preference for airports, airlines, timings or refundable fares.
    3. Copy the current results, including the final displayed price, currency, baggage, stops, timings, fare conditions and booking links, into the prompt.
    4. Paste the prompt into an AI chat and ask it to produce the comparison and recommendation using only the supplied results.
    5. Open the booking link for the recommended option and compare its current final total, baggage, passenger details, timings, change terms and cancellation terms with the AI table.
    6. Send the checked option to the required colleague or expense approver, then book it directly through the airline or approved travel system.

    Prompt

    Compare the flight options below for a UK business trip. Do not invent prices, availability, baggage allowances, fare conditions, journey times or booking links, and do not claim that any option is the cheapest unless the supplied results support that claim.
    
    Trip requirements:
    - Departure airport or airports: [enter]
    - Destination airport or airports: [enter]
    - Outbound date and acceptable departure window: [enter]
    - Return date and acceptable departure window: [enter]
    - Number of travellers: [enter]
    - Cabin: [enter]
    - Baggage required: [enter]
    - Maximum number of stops: [enter]
    - Maximum acceptable journey time: [enter]
    - Flexibility: [enter]
    - Company travel rules or budget: [enter]
    
    Flight results copied from airline or booking sites:
    [paste the current results here]
    
    Produce:
    1. A table comparing each option by airline, airports, dates, departure and arrival times, stops, total price, currency, baggage, fare conditions, change and cancellation terms, and booking link.
    2. The total cost per traveller and for the whole booking only where the supplied information supports it.
    3. A short ranking based on the stated business requirements, separating lowest price from best overall fit.
    4. A list of missing or unclear details that must be checked before booking.
    5. A final recommendation that names the trade-off rather than presenting an uncertain fare as fact.
    
    Use the supplied data only. Mark unknown details as unknown. Do not book anything.

    Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

What it gets wrong

What caps this at PARTLY: real time truth, verification cost and stakes of error.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

AxisScore (0–2)
Output1
Inputs2
Verification1
Liability2
Effort delta1
Total7 / 10

FAQ

Can AI find the cheapest flight for my business trip?
Partly. AI can compare current results that you provide, but it cannot guarantee the cheapest fare across every airline and booking site or confirm that a displayed fare is still available.
Can ChatGPT compare flight prices?
Yes, if you paste in current search results and the trip requirements. It can organise the fares and explain the trade-offs, but you must confirm the final price, baggage and fare rules on the booking site.
Can AI compare business flight options with baggage included?
Yes, when the supplied results state the baggage allowance and total price. Ask it to mark missing baggage information as unknown, then check the selected fare directly before booking.
Is it safe to use AI to choose a business flight?
It is useful for narrowing down options, but it should not be the final authority on a live fare or your company's travel rules. Check the booking page and obtain any required internal approval before paying.

Nearby answers

Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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