Yes, you can add a Northwest WorldPerks, KLM Flying Dutchman, Continental OnePass, or Alaska Airlines Mileage Plan frequent flyer number to your reservation. Yes, there are two ways to upgrade. If all passengers checking in are Northwest WorldPerks Elite members, you will be offered a free upgrade, depending on availability. For more information regarding E-First Upgrades, click here . In is currently only available for travel within the 50 United States.
International flights require the verification of proper international travel documents.
As a result, airport check-in is required. Since the change may result in an additional fee or a refund, an airport agent must process this more complicated check-in transaction. You must use your browser's print feature to print the boarding pass, just like you would print any other internet page. If you cannot successfully print your boarding pass, complete the check-in process anyway and see a gate agent at the airport. Once the loading process is complete, print the boarding pass as is .