What counts as a young child for free family seating?

US Department of Transportation guidelines apply to children under 13. Most airlines worldwide follow similar rules. Infants under 2 sitting on a lap always qualify. Teenagers 14+ are treated as adults for seating purposes.

Will the airline automatically seat us together?

Not always. US airlines must make 'reasonable efforts' but have no legal obligation to seat families together for free on all fare types. Budget airlines treat every seat as revenue. Always select seats manually if you can.

Can I get a refund if we paid for seats and got split up anyway?

Yes, usually. If you paid for adjacent seats and the airline changed your aircraft or reassigned you apart, call and request a refund of the seat fees. Document everything. Most airlines will refund without argument.

What if my kid is 13 but looks younger?

The rule is age 13, not appearance. Airlines check birth dates in the reservation system. If your child just turned 13, you likely won't get free family seating, but gate agents still prioritize keeping you together if possible.

Does basic economy let families sit together?

Depends on the airline. United, American, and Delta waive the no-seat-selection rule for families with kids under 13 even on basic economy. Southwest has open seating so families can board early and sit together. Frontier and Spirit charge everyone.

Should I ask the person in the aisle to switch with my middle seat?

If you're asking someone to take a worse seat so you can sit with your child, expect them to say no. Offer a fair trade — aisle for aisle, window for window. If you're asking someone to take a middle seat, offer to buy them a drink or snack. Do not involve your child in the negotiation.

Getting Seats Together When Flying With Kids

Most airlines let families with children under 13 sit together for free, but you need to request it early. Book directly with the airline when possible, call immediately after booking if auto-assigned seats split you up, and check in exactly 24 hours before departure to grab any seats that open up. Gate agents can usually fix last-minute splits if you explain you have young children.

Book directly with the airline when possible. Third-party sites like Expedia or Kayak often can't assign family seats at booking. Airlines prioritize keeping families together when you book on their own website or app. You'll see seat maps immediately and can choose adjacent seats if available.
Select seats at booking time. Even if there's a fee, pay it at booking for peace of mind. Most US and European airlines waive seat fees for one adult to sit with a child under 13, but not always for the whole family. Paying $15-30 per seat now beats paying $50-100 per seat at the gate or risking separation.
Call the airline if you can't select seats together. If the booking process splits your family across the plane, call the airline's customer service immediately. Do not wait. Say 'I'm traveling with children under 13 and we need to sit together.' They have access to blocked seats and can often fix it. Be polite but persistent.
Check in exactly 24 hours before departure. Set an alarm. When check-in opens, the system releases seats held for operational reasons, elite members who didn't show, and people who changed flights. You'll have the best shot at grabbing adjacent seats that just appeared. Check the seat map even if you already have assignments — better seats may have opened.
Talk to the gate agent if still separated. Arrive at the gate 45 minutes before boarding. Explain calmly that you have young children and are seated apart. Gate agents can see who hasn't checked in and can often move you. They prioritize families with children under 5. Don't expect first-class upgrades, but expect them to try.
Ask flight attendants as absolute last resort. Once on board, a flight attendant can ask other passengers to switch. This is your weakest option and annoys everyone, but it works if you have a toddler or infant. Most passengers will swap if it means a parent can sit with a very young child. Do not ask passengers directly — let crew handle it.

What counts as a young child for free family seating?: US Department of Transportation guidelines apply to children under 13. Most airlines worldwide follow similar rules. Infants under 2 sitting on a lap always qualify. Teenagers 14+ are treated as adults for seating purposes.
Will the airline automatically seat us together?: Not always. US airlines must make 'reasonable efforts' but have no legal obligation to seat families together for free on all fare types. Budget airlines treat every seat as revenue. Always select seats manually if you can.
Can I get a refund if we paid for seats and got split up anyway?: Yes, usually. If you paid for adjacent seats and the airline changed your aircraft or reassigned you apart, call and request a refund of the seat fees. Document everything. Most airlines will refund without argument.
What if my kid is 13 but looks younger?: The rule is age 13, not appearance. Airlines check birth dates in the reservation system. If your child just turned 13, you likely won't get free family seating, but gate agents still prioritize keeping you together if possible.
Does basic economy let families sit together?: Depends on the airline. United, American, and Delta waive the no-seat-selection rule for families with kids under 13 even on basic economy. Southwest has open seating so families can board early and sit together. Frontier and Spirit charge everyone.
Should I ask the person in the aisle to switch with my middle seat?: If you're asking someone to take a worse seat so you can sit with your child, expect them to say no. Offer a fair trade — aisle for aisle, window for window. If you're asking someone to take a middle seat, offer to buy them a drink or snack. Do not involve your child in the negotiation.