Check in is a verb phrase that means to register upon arrival. Check-in is used as an adjective or a noun to describe objects used for this purpose, or the act itself, respectively.

Check in for your United or United Express-operated flight, depending on where you are in your travel experience.

Get your first checked bag free on domestic American Airlines itineraries with this credit card offer. Check in beginning 24 hours and up to 45 minutes before your flight (90 minutes for …

Check in, sans hyphen, is a verb phrase and is synonymous with registration upon arrival or confirmation of information. The term can also be used to check up on something, such as a …

Check in to your Southwest Airlines flight online or with our mobile app. Find information about your upcoming flight reservation here.

By entering your SkyMiles, confirmation or eTicket number, you can check in for your flight, print your boarding pass, add any checked bags, make a change to your seat, complete a service …

When you’re identifying or describing the location for that action (noun or adjective), use check-in with a hyphen. After considering the two versions in their proper context, you’ll get the hang of it.

Skip the airport lines and check in online with Spirit Airlines. Choose your seat, print your boarding pass, and be ready for takeoff in no time!

Download our free mobile app for iOS and Android to check in and get your mobile boarding pass with ease. If you have your mobile boarding pass and are not checking a bag, you can skip the …

4 days ago · Book Air Canada flights online for a seamless travel experience. Explore flight schedules, routes, and secure your seats with ease.