How do I filter users who have visited certain pages and exclude a single page using "base page link"

What are you actually trying to achieve?

With the Visitor level segment, you are pulling back all visitors (and by extension all pages those visitors have gone to) that had the following:

• Any hit that contains "domain.com/hotels/SEA/"
• AND
• Any hit that contains "domain.com/flights"
• AND
• Any hit that doesn't contain "domain.com/hotels/SEA/singapore"  (which is satisfied by any of the hits on the first 2 clauses, or any other page hit by those visitors)

If you are trying to exclude visitors that ever visited "domain.com/hotels/SEA/singapore", then you must add that as a Visitor Exclusion

Exclusion and Does Not Contain are very different logic.... Exclude actually excludes hits, visits or visitors (based on how the segment is built)... where as Does Not Contain within the current segment build does nothing... Does Not Contain works better in such scenarios as a paired container:

Hit (

     Something X

     AND

     Something else does not contain Y

)

Basically getting all the X hits that also do not have Y (such as Page "Home" AND Referrer does not contain "Google" - for instance)

Now, are you trying to exclude just hits to "domain.com/hotels/SEA/singapore"? Or exclude visitors that have gone to that page? Or exclude visits that included that page?

Either way, you will have to make the container an exclude rule, and choose what level needs to be excluded.

^ This will only exclude the hits, but the rest of the page views from those visitors will still be returned... I don't know if that is the intended behaviour....