The phrase "a valid trip" is correct and usable in written English.
You can use it when referring to a journey or travel experience that is legitimate, acceptable, or recognized as appropriate.
Example: "Before booking your vacation, make sure that it is a valid trip according to the travel restrictions in place."
Alternatives: "an acceptable journey" or "a legitimate travel experience."
The first is a function indicating whether a subwalk of k steps on a realisation ω is a valid trip, and is defined by ϕ ( y, k, t, ω ) = { G ∞ ( L ( y, k, ω ), t ), if ω k − 1 and ω k are the nodes adjacent to y, 0, otherwise, where k is the number of hops on nodes in the subwalk and L ( y, k, ω ) is the length of the subwalk.
You can combine it with the airline's Excursionist Perk, which allows for a free one-way award flight within one region when you book a valid round-trip or multicity trip that begins and ends in a different region (browse what qualifies as a "region" on United before you book).
Since Selig has been noncommittal about whether he will attend Bonds's games, this potential scheduling conflict could give him a valid reason to bypass a trip here.
Most policies accept terrorist activity as a valid reason for canceling a trip only if the act occurred in a city on your itinerary within 30 days of your scheduled arrival.
Four indicate health issues as a reason, whereas four others state that even though cycling is a valid alternative for short-distance trips, it still does not play any role in their daily routines.
In order to be certified and receive a special use permit, a non-commercial guide must be at least 18 years of age by the day of the trip and possess a valid state-issued motor vehicle driver's license.
For the area licensing scheme, travellers may decide to pay or not to pay the toll depending on the proportion between their travel costs for the whole trip-chains during a valid period of the area license and the toll level.
If the insured becomes pregnant after they purchased their policy (and before their trip starts) that is a valid reason to cancel.
Cancellation and interruption travel insurance will refund the costs of your trip in the event that it is canceled for a valid reason.
Unlike his private holidays in Switzerland, this trip was publicised, ensuring plenty of warning to make sure a valid arrest request was in place.
Some people fear that a pre-planned trip can eliminate the sense of discovery from travel, which is a valid point.
