What Happens If You Don't Select a Plane Seat? How to Select Online?

Learn the consequences of skipping plane seat selection, how to choose seats on Trip.com, and tips for finding the best seats on your next flight.

What Happens If I Don't Select a Plane Seat?

If you do not select a seat on a plane in advance, the airline will automatically assign one to you, usually during the check-in process. This assignment is based on remaining availability, meaning you have no control over your position in the cabin.

While this allows you to avoid paying seat selection fees, it often results in receiving less desirable spots, such as middle seats or seats at the very back of the aircraft. For those traveling with companions, there is a high likelihood that the system will seat your group in different rows depending on how full the flight is.

What and When is Seat Selection on a Plane?

Seat selection is the process of choosing a specific seat in the aircraft cabin, such as a window or aisle seat, instead of waiting for a random assignment.

You can typically select a seat at three different stages: during the initial booking of your ticket, anytime before the flight through the airline’s "Manage Booking" portal, or during the online check-in window, which usually opens 24 hours before departure. While some airlines allow free selection for certain fare classes, many charge a fee for specific seats or for selection made prior to the check-in period.

Consequences of Not Selecting a Seat (By Severity)

1. Undesirable Location: Airlines fill their "preferred" seats (windows and aisles) with paying customers first. By waiting for an automatic assignment, you generally receive the seats that others did not want to pay for.
2. Group Separation: Most airline algorithms fill empty single spots first. If you are a party of three and do not select seats, the system may place you in three different middle seats across the cabin.
3. Loss of Amenities: Specific seats, such as exit rows or bulkhead seats, offer more space. These are almost always taken by the time automatic assignment occurs at check-in.
4. Involuntary Bumping (Overbooking): If an airline sells more tickets than there are seats, they must "bump" passengers. Those who have not yet been assigned a seat in the system are statistically more likely to be selected for relocation to a different flight.

What Happens by Airline Type

• Full-Service Airlines: Most allow free seat selection during the 24-hour check-in window. If you don't select one then, you are assigned whatever is left at the gate.
• Low-Cost Carriers (LCCs): These airlines use seat selection as a revenue stream. If you do not pay, they will intentionally assign random seats. Some LCC systems are programmed to separate groups to encourage paid selection.

Disclaimer: Seat assignment policies vary by airline, fare class, and specific flight conditions. Information provided is for general guidance and does not guarantee specific outcomes. Always check your airline’s specific terms of carriage.

Can I Change My Seat After It Is Automatically Assigned?

Yes, you can generally change your seat after it has been automatically assigned by the airline. To do this, you should log into the airline's website or mobile app and navigate to the "Manage Booking" or "Check-in" section. Once you view the seat map, any available seats will be visible, and usually you can select a new one.

While switching between standard seats is often free during the check-in window on full-service airlines, budget carriers may still charge a fee for any manual change. You can also attempt to change your seat at an airport self-service kiosk or by asking a check-in agent at the counter. If the flight is fully booked, however, your options will be limited to what is currently unoccupied. After boarding the aircraft, seat changes are usually only permitted with the approval of a flight attendant once all passengers have been seated.

How to Select a Seat on Trip.com

To select a seat using Trip.com, follow these steps:

• Log In: Open the Trip.com website or Trip.com app and log into your account.
• My Bookings: Navigate to the "Trips" or "My Bookings" section to find your flight reservation.
• Manage Booking: Click on the specific flight. Look for a button labeled "Seat Selection" or "Check-in/Seat."
• View Map: A seat map of the aircraft will appear. Available seats will be highlighted.
• Confirm: Select your preferred seat. If there is a fee, you will be prompted to pay. If it is within the free check-in window, you can confirm it for free.
• Save: Ensure you receive a confirmation email or updated digital boarding pass reflecting your choice.

If You Don't Select a Seat in Advance, Where are You Most Likely to Sit?

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When you leave your seat assignment to the airline's automated system, you will almost certainly end up in the least desirable locations. These typically include:

• Middle Seats: These are the last to be chosen by paying passengers and are the first to be assigned to those without a selection.
• The Last Rows: Seats near the back of the plane are often avoided because they are near the galleys and lavatories, and they are the last to deplane.
• Non-Reclining Seats: Seats directly in front of an exit row or at the very back of a cabin section often do not recline.
• Disconnected Spots: If you are traveling in a group, you are likely to be scattered in single middle seats across different rows.

Is There a Trick to Getting Seats Together Without Pre-selecting?

While there is no guarantee, you can increase your chances of sitting together without paying extra by following these methods:

1. The 24-Hour Rule: Almost every airline opens online check-in exactly 24 hours before the flight. Set an alarm and check in the second it opens. Many airlines release a block of seats at this time that were previously held for administrative reasons.
2. Check the Map Frequently: In the hours leading up to the flight, other passengers may upgrade or change their plans, freeing up adjacent seats.
3. The Gate Agent Request: If the online system splits your group, arrive at the gate early and politely ask the gate agent if any adjacent seats have opened up due to no-shows or upgrades.
4. Identify Families with Children: Under many jurisdictions and airline policies, children under a certain age must be seated with at least one adult. If you are traveling with a minor, the airline is often required to assist you in sitting together, though this may happen at the gate rather than online.

Should I Pay for Seat Selection?

Whether you should pay for seat selection depends on your specific travel needs and the type of airline you are flying.

You should consider paying if

• Long-Haul Flights: For flights longer than 4 or 5 hours, the comfort of a window or aisle seat is often worth the cost.
• Traveling with Children: If you must sit next to a child or a person requiring assistance, paying ensures you are not separated.
• Specific Physical Needs: If you require extra legroom or need to be near a restroom for health reasons.
• Tight Connections: If you have a short layover, paying for a seat near the front of the plane allows you to deplane faster.

You can skip paying if

• Short Flights: On flights under 2 hours, the seat location has a minimal impact on the overall experience.
• Solo Travel: If you are traveling alone and do not mind where you sit, you can save money by accepting a random assignment.
• Budget Priority: If your primary goal is the lowest possible fare, the random seat assignment at check-in is the most cost-effective choice.

Why I Cannot Select My Seats on a Plane

There are several common reasons why seat selection might be unavailable:

• Basic Economy Fare: Some "light" or "basic" tickets strictly prohibit seat selection until check-in.
• Codeshare Flights: If you booked through one airline but the flight is operated by another, the system integration may prevent seat selection on the booking site.
• Check-in Window: Some airlines only open the seat map 24 hours before departure.
• Technical Issues: The airline's system may be undergoing maintenance.
• Blocked Seats: Airlines often block certain rows for frequent flyers or passengers with disabilities.

Best Seats to Select on a Plane

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• For Legroom: Exit rows and bulkhead seats (the front row of a section).
• For a Quiet Sleep: Window seats near the middle of the cabin, away from toilets and engines.
• For Stability (Motion Sickness): Seats directly over the wings.
• For Speed: Seats as close to the front exit as possible.

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