Yes, a Swiss Army Knife can go in checked luggage; it’s banned in carry-ons; wrap or sheath the blade and follow local knife laws.

Yes — on British Airways, you can add baggage after check-in only at the airport at the standard airport rate; online adds must be done before check-in.

Yes, you can add baggage after booking with Jetstar, either online in Manage booking or at the airport, with prices lowest online and limits up to 40kg.

Yes, Delta lets you add a checked bag after online check-in via My Trips, the Fly Delta app, a kiosk, or a counter—standard bag fees apply.

Yes, Wizz Air lets you add baggage after booking in Manage Booking up to 3 hours before departure; prices are lower online than at the airport.

Yes, a police officer can check your bag in the U.S. with consent, a valid warrant, probable cause, or when a narrow legal exception applies.

Yes—flying during a healthy pregnancy is usually safe up to 36 weeks, with timing limits and simple steps guided by your clinician and airline.

No, a pocket knife is not allowed in carry-on luggage in the U.S.; pack it in checked baggage and sheath or wrap it to avoid injury.

Yes, a pocket knife can go in checked luggage; pack it sheathed and follow airline and country rules.

No, planes don’t take off into a thunderstorm; crews hold or reroute until wind shear, lightning, and heavy rain hazards near the runway clear.