Most of the time, you don't need to call us. As soon as the booking process is complete, we'll send you an e-mail confirming your booking.

Occasionally, however, an airline may take up to 24 hours to confirm a flight. If this is the case, we'll let you know right away. Check your itinerary 24 hours after your booking to make sure it has been confirmed by the airline.

Here's how to check your itinerary online:

1. Click the link titled "My Itineraries" in the blue bar at the top of any page.
   
   
2. If you are prompted to sign in, please provide your user name and password.
   
   
3. You'll be taken to a page titled "Saved itineraries and favorite destinations." Once there, select the itinerary you wish to access.
   
   
4. At the top of the itinerary, you'll see a field labeled "Status," which should say "Confirmed" or "Ticket confirmed."

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In many cases, depending on which product you purchased, you can make a change or cancellation. All changes or cancellations to a flight itinerary must be made by contacting Expedia Customer Service at 1-800-EXPEDIA (1-800-397-3342) or 1-404-728-8787. We are available 24 hours a day, 7 days a week.

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All flights should be confirmed with the airline directly. We recommend that you do so at least 24 hours prior to departure for domestic flights (72 hours for flights to Hawaii and international destinations).

For contact information, please see our "Airline toll-free telephone numbers" page.

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You'll need to call the airline directly. For contact information, please see our "Airline toll-free telephone numbers" page.

On certain flights, the airline will allow Expedia to request seats on your behalf (via our Seat Pinpointer tool), but these are only requests, and need to be verified with the airline.

You can access Seat Pinpointer during the booking process or on any booked itinerary (available via the "My Itineraries" link in the blue bar at the top of any page). If the airline has made the seating chart available to us, Seat Pinpointer will display seating information and allow you to request a particular seat. If no charts are available, we will send a generic request with your seating preference to the airline for you.

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If you'd like information on how to navigate your way around the site, take a look at the "Shopping for travel" page.

If you'd like tips on how you can save money on your next trip, you have several options:

• Visit the "Deals" page for information on the latest discounts.
  
  
• Visit the "Insider's Shopping Tips" page for advice on shopping for flights, hotels, and cars.
  
  
• Visit the "Vacation package shopping tips" page for advice on package shopping.

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