Alaska Airlines Check in

Alaska Airlines check-in opens 24 hours before departure and can be done on alaskaair.com, the Alaska Airlines app, or at an airport kiosk. Online and mobile check-in closes 60 minutes before most domestic flights and 90 minutes before most international flights, though exact cutoffs vary by airport. Checked bags must be dropped by the same deadline, and boarding typically closes 15–20 minutes before departure.

That's the short version. Below is everything else you need — including the details that change depending on your airport, your destination, and whether you're checking a bag.

When Does Alaska Airlines Check-In Open?

Online and mobile check-in for Alaska Airlines opens 24 hours before your scheduled departure time and stays open until shortly before the flight. This applies whether you're flying domestically within the U.S. or on an international route.

If you have a connecting itinerary, Alaska generally lets you check in for both legs of the trip at once, as long as the first flight departs within that 24-hour window. This is especially useful for early-morning departures — you can check in the night before, save your boarding pass to your phone, and walk straight past the check-in counter the next day.

Key takeaway: the 24-hour window is a ceiling, not a requirement. There's no penalty for checking in right at the 24-hour mark versus waiting until a few hours before your flight — but checking in early does let you lock in seat assignments and spot upgrade availability before it's gone.

Ways to Check In: Online, App, Kiosk, or Counter 

Alaska Airlines gives you four main paths to a boarding pass:

• Website (alaskaair.com): Check in from any browser, then download a PDF boarding pass or send it to your phone.
• Mobile app (Alaska/Hawaiian app): Check in, get a digital boarding pass, and manage seat changes or upgrades from your phone. Since Alaska and Hawaiian Airlines merged operations, check-in now runs through the combined Alaska Hawaiian app.
• Airport kiosk: Self-service touchscreen kiosks in the terminal print a paper boarding pass and bag tags.
• Ticket counter: A staffed counter for anyone who needs help — required for some international documentation checks, unaccompanied minors, and special service requests.

For most travelers with no bags to check, the app is the fastest option: check in, save the pass to your phone's wallet, and head straight to security.

Step-by-Step: Online Check-In

1. Go to alaskaair.com and select Check In from the homepage.
2. Enter your confirmation code and last name (or your e-ticket number, or Mileage Plan number).
3. Confirm or update passenger details.
4. Select or change your seat, and add or pay for checked bags if needed.
5. Review any upgrade offers, such as Premium Class or First Class, if available.
6. Get your boarding pass as a PDF, an emailed link, or a mobile wallet pass (Apple Wallet or Google Wallet).

If you're checking a bag, you'll still need to visit the counter or a bag-drop kiosk at the airport — checking in online doesn't get your suitcase there for you.

Step-by-Step: Mobile App Check-In

1. Open the Alaska Airlines app and go to Check In.
2. Look up your trip with your confirmation code, e-ticket number, or Mileage Plan number.
3. Verify passenger and document details.
4. Choose your seat and complete any bag payment.
5. Your digital boarding pass appears directly in the app — no separate wallet download needed, though you can still add it to Apple or Google Wallet as a backup.

A digital boarding pass in the app is generally the most reliable option at security and the gate, since it updates automatically if your gate or boarding time changes — a paper printout won't.

Airport Kiosk and Counter Check-In 

If you'd rather handle things in person, or you're traveling somewhere that requires document verification, self-service kiosks are available in most Alaska Airlines terminals. At the kiosk you can:

• Check in and print a boarding pass
• Print baggage tags
• Pay for checked bags
• Select or change a seat, where available

Alaska and Hawaiian Airlines have also been rolling out streamlined, digital-first airport lobbies at several hub airports. In these lobbies, boarding passes live primarily in the app, and digital ID verification is supported for passports and permanent resident cards from a large number of countries. If you can't access your boarding pass before arriving, an agent can still print one for you at the counter.

If you need special assistance, are traveling as an unaccompanied minor, or your international documentation needs manual review, plan on the counter rather than the kiosk.

Check-In Deadlines and Cutoff Times 

This is the part that varies the most — and the part most likely to catch travelers out. Cutoff times differ by airport and by whether you're checking a bag.

A handful of airports have their own specific cutoffs that run longer than the standard window — some West Coast hubs and select international gateways require bags at the counter up to 90 minutes early. Because these exceptions exist, the most reliable way to confirm your exact cutoff is to check the cutoff-times page on alaskaair.com or your confirmation email for the airport you're departing from, rather than relying on a single blanket number.

Bottom line: if you're checking a bag, treat the deadline as earlier than you think. Arriving "on time" for boarding but late for bag drop can still mean your suitcase — or your seat — doesn't make the flight.

International Flight Check-In

For international departures, Alaska Airlines recommends:

• Checking in online or via the app as soon as the 24-hour window opens, since international check-in often requires entering passport and visa information that takes longer than a domestic check-in.
• Arriving at the airport with extra buffer time — commonly recommended as 2–3 hours before departure for international flights, more for larger, higher-traffic airports.
• Having your passport (and visa, if required) ready, since some destinations require document verification at the counter even if you've already checked in online.

Some destinations, including certain routes to Cuba, are not eligible for self-service check-in at all and require you to check in at the airport counter instead.

If you're unsure what documentation your destination requires, the safest move is to confirm directly through Alaska's official website or app well before travel day — international entry requirements change more often than domestic ones, and getting this wrong at the airport is one of the most common reasons travelers miss international flights.

Checked Bags and Baggage Drop

Checking in online does not check your bag — it only issues your boarding pass and, if you've paid in advance (full baggage fees and size limits here), your bag tag information. You still need to physically hand off checked luggage at either:

• A staffed ticket counter, or
• A self-service bag-drop kiosk, where available

Bag-drop deadlines are almost always earlier than the general check-in cutoff — commonly 45 minutes before domestic departure and 60–90 minutes before international departure, depending on the airport. If your flight has a tight connection or you're flying out of a larger, busier terminal, aim to have bags dropped well ahead of the stated cutoff rather than right at it.

What Happens If You Miss the Deadline?

Missing the check-in or bag-drop cutoff doesn't automatically cancel your ticket, but it does put your reservation at risk. In practice:

• Your seat assignment can be released and given to another passenger, even on a fully paid ticket.
• You may be rebooked on a later flight, sometimes with a same-day standby fee or fare difference depending on your ticket type.
• If your checked bag isn't dropped in time, it may travel on a later flight even if you make your original one.

If you think you're going to be cutting it close, calling ahead, checking your live flight status, or checking in via the app the moment you're moving toward the airport is far better than arriving and hoping the counter can still process you.

Common Check-In Problems and Fixes

"Check-in isn't available yet." You're most likely trying more than 24 hours before departure. Wait until the window opens, or check in for a later leg of a multi-flight itinerary once the first flight falls inside 24 hours.

"The system says to check in at the airport." This usually means your ticket needs document verification (common for some international routes and Cuba-bound flights), or there's a fare restriction on your ticket that requires an agent.

App or website isn't loading correctly. Try clearing your app cache or updating to the latest version, or use an incognito/private browser window on desktop. If it still fails, the airport kiosk or counter is a reliable fallback.

Confirmation code isn't being accepted. Alaska's confirmation codes are exactly six letters. Double-check for lookalike characters (like O vs. 0), and try your e-ticket number or Mileage Plan number as an alternative lookup method instead.

Frequently Asked Questions 

How early can I check in for an Alaska Airlines flight?

Online and mobile check-in opens 24 hours before your scheduled departure time, for both domestic and international flights.

What time does Alaska Airlines check-in close?

Online check-in typically closes 60 minutes before domestic departures and 90 minutes before international departures, though exact times vary by airport — check your confirmation email or alaskaair.com for your specific airport's cutoff.

Can I check in for Alaska Airlines without the app?

Yes. You can check in on alaskaair.com from any browser, or in person at an airport kiosk or ticket counter.

Do I need to check in if I only have a carry-on?

Checking in is still recommended even without checked luggage, since it confirms your seat and gets you a boarding pass. With no bags to check, you can go straight from check-in to security.

Can I check in for a connecting flight at the same time?

In most cases, yes — Alaska allows check-in for connecting itineraries together, as long as the first flight departs within the 24-hour check-in window.

What if I can't check in online for an international flight?

Some international routes, including flights to Cuba, require in-person check-in at the airport counter for document verification, even if self-service check-in appears available for other legs of your trip.