Booking a flight with kids used to come with a reasonable assumption: you’d be seated together. These days, that’s no longer guaranteed, especially if you’re trying to keep costs down.

Between basic economy fares, paid seat selection, and increasingly complex airline policies, you might find your family scattered across the cabin unless you plan ahead. And while airlines have faced pressure to improve family seating policies, the reality is still a patchwork of rules, fees, and fine print.

Here’s what’s still free, what’s not, and how to avoid getting split up on your next trip.

Why Family Seating Has Become So Complicated

Airlines didn’t randomly decide to separate families; it’s a byproduct of unbundling. Over the past decade, major U.S. airlines like American Airlines, Delta Air Lines, and United Airlines have introduced basic economy fares that strip away perks once standard for standard tickets. That includes the ability to select seats in advance.

Instead of assigning seats at booking, airlines often wait until check-in, or even later. By that point, available seats are probably scattered throughout the cabin.

Add in premium-seat upsells, elite status perks, and credit card benefits, and the seat map has suddenly become a bit of a free-for-all.

What the Government Says (and What It Doesn’t)

You’re probably thinking that none of this should apply to families, though—especially those with young children. But there’s still no formal rule requiring airlines to seat families together for free, even as the DOT has pushed carriers to adopt more family-friendly policies.

While several airlines have updated policies in recent years on their own to avoid separating young children from accompanying adults, there’s still no federal rule requiring them to seat families together for free.

In general, U.S. airlines now say they’ll make a “best effort” to seat children under a certain age, often 13 or younger, next to at least one adult in their party at no additional cost. The key phrase there is “best effort.” There’s no guarantee, and these policies often don’t apply to basic economy fares, late bookings, or full flights. So while things are improving, you still can’t rely on the airline to fix it for you

What You Can Expect by Airline

Policies vary drastically from one airline to the next. Here’s a quick look at how major U.S. airlines handle family seating:

American Airlines

• Attempts to seat children 15 and under with at least one adult
• Offers free adjacent seats in certain cases after booking
• Basic economy tickets may limit options

Delta Air Lines

• Does not offer a formal family seating guarantee
• Allows advance seat selection on most fares, making it easier to sit together
• Works to seat families together when possible, including before boarding

United Airlines

• Introduced a family seating tool that highlights free adjacent seats for children under 12
• May open up preferred seats at no cost for eligible families
• Applies even on some basic economy fares

Southwest Airlines

• Assigned seating (no longer open seating)
• Attempts to seat children 12 and under next to a parent on the same reservation, regardless of fare type
• May assist with reseating at the gate if families are split up
• If adjacent seats aren’t available, passengers may have the option to switch to a later flight

JetBlue Airways

• Guarantees children 13 and under will be seated next to at least one adult on the same reservation at no additional cost
• Seat selection is included on most fares, though Blue Basic may limit advance selection

But even within these policies, the experience can vary depending on the route, the aircraft, and how full the flight is.

What’s Actually Free (and What’s Not)

Let’s break this down in practical terms.

Usually Free

• Being seated next to a young child (if seats are available)
• Airline assistance to reseat families before boarding
• Standard seat assignments on nonbasic fares

Often Not Free

• Choosing specific seats in advance (especially aisle/window combos)
• Extra legroom or preferred seating
• Seat selection on basic economy fares

That last one is where most families can run into issues. Skipping seat-selection fees can easily lead to split assignments.

How To Avoid Getting Split Up

If sitting together matters, and with kids, it usually does, a little planning goes a long way. Here are a few things you can do to make sure you are seated together:

Book Early

The earlier you book, the more seat options you’ll have. Waiting until the last minute is almost guaranteed to result in fewer adjacent seats.

Avoid Basic Economy When Possible

Basic economy can look appealing in terms of price, but it often removes your ability to choose seats. If you’re traveling as a family, the savings may not be worth the trade-off.

Check Seat Maps Before Booking

Most airlines let you preview seat maps before you finalize your purchase. If you don’t see enough adjacent seats, consider a different flight if possible.

Pay for Seat Selection

If sitting together is nonnegotiable, it may be worth just coughing up the money to pay for seat selection.

A common strategy is to book one aisle and one window in the same row, leaving the middle seat open. If the flight isn’t full, that middle seat may stay empty. If not, many passengers are willing to swap for a better seat.

I’ve personally used this strategy several times and would say it works about 50% of the time. 

Set Calendar Reminders for Check-In

If you didn’t pay for seats, checking in as early as possible (typically 24 hours before departure) can improve your chances of snagging adjacent seats.

Talk to the Gate Agent

Airlines often hold back a few seats for operational flexibility. Gate agents can sometimes reseat families right before boarding.

Can Points and Miles Help?

Points and miles don’t automatically solve family seating, but they can give you more control, depending on how you use them.

When you book award tickets through programs like American Airlines AAdvantage or United MileagePlus, your seat-selection options mirror those of a paid ticket in the same fare class.

That means basic economy awards may still restrict seat selection, while standard economy awards usually include free seat assignments. And if you’re booking a premium cabin, seat selection generally isn’t an issue at all.

Things get more useful with credit card rewards. Some credit cards come with airline incidental reimbursement credits and those can usually offset seat-selection fees.

• The American Express Platinum Card®: Up to $200 per year in airline fee credits for a selected airline. This can cover seat-selection fees, depending on how the charge is coded. Enrollment required. Terms apply.
• The Business Platinum Card® from American Express: Also offers up to $200 annually in airline fee credits with similar restrictions. Enrollment required. Terms apply.
• American Express Hilton Honors Aspire: Offers up to $200 in annual airline fee credits (structured as semiannual credits), which may apply to seat selection charges. Enrollment required. Terms apply.
• Bank of America® Premium Rewards® credit card: Up to $100 per year in airline incidental credits that can cover seat-selection fees, including preferred seating. Unlike many cards, you don’t need to select a single airline, making it easier to use across different trips.

Keep in mind that these credits typically require you to select a single airline in advance, and not all seat selection charges will qualify depending on how they’re coded.

The Bottom Line

Family seating policies have improved, but they’re far from foolproof.

Airlines will usually try to keep young kids next to an adult, but “try” isn’t the same as “guarantee.” And once you factor in basic economy fares, paid seat selection, and full flights, it’s easy to see how families still get split up.

If you’re flying with kids, the safest approach is to take control where you can: book early, choose your seats (even if it costs a bit extra), and avoid fare types that limit your options.

Because when it comes to flying with kids, a little planning can save you from a much bigger headache at 30,000 feet.

Related Posts

More Airlines Raise Bag Fees—The New Trend Is Here

Podcast 166. Airport Lounge Access for Families in 2026

Finding Business-Class Seats