* Book at least 14 days in advance.

   * Save a screenshot of a flight search that shows the least expensive fare

     available from multiple airlines for the dates you need to travel.

   * Fares within $100 of that lowest fare you found are In-Policy, even if

     you book on a different site or for different dates.

   * Fares over $750 domestically or $1,500 internationally require

     Conservancy's pre-approval.

Policy.  The lowest logical fare is the least expensive fare available from a

fare search that meets all of these criteria:

  * The search must include fares from multiple airlines.

  * The search must cover only the dates of relevant travel.  For example, if

    you're attending a conference that runs Monday through Friday, the search

    must have you arriving no earlier than Sunday, and leaving no later than

    Saturday.

  * Except as allowed by Policy, the search must not include filters that

    might exclude the least expensive fare.  For example, you may filter out

    flights with two or more connections, since Conservancy does not consider

    those reasonable.  However, you may not filter out specific airlines, or

    flights without WiFi.

PLCs shall use standard airfare search sites to determine the lowest logical

fare.  Any widely-recognized airfare search site that lists results from

multiple airlines is acceptable, including sites such as

http://orbitz.com[Orbitz], http://kayak.com[Kayak] or

http://hipmunk.com/[Hipmunk].  The PLCs and/or the traveler must submit the

output (such as a screenshot or printout from the browser) of a online fare

search as part of documentation in airfare pricing.  Make sure the output

shows the least expensive fare available.  Travelers may book their tickets

on a different site as long as they used a qualifying fare search site to

determine that the booked flights are within Policy.

Any flights greater than US$100 over the lowest logical fare require

written pre-authorization by Conservancy.