Southwest Solo Booking: Key Facts at a Glance
Southwest Airlines sources reviewed November 14, 2025. Rules can change. Always confirm with the airline for your specific itinerary before you book or travel.
Managing a Southwest Airlines booking for a solo child traveler is straightforward when you know the age rules. Kids 5–11 must use the UM service unless traveling with someone 12+. Teens 12–17 are considered Young Travelers and can fly alone without the service.
This guide brings together everything you need: how to book, change, cancel, check in, handle baggage, and manage the airport handoff.
Your Southwest Booking Action Center
Every step depends on Southwest confirming the child and the unaccompanied minor service on your specific flights. Use this guide to manage the entire process.
Making Your Child's Reservation
How to book: Book online, by phone, or at a ticket counter. Provide drop-off, pickup, and alternate adult details.
Use the child's full legal name and correct birthdate. Save your booking reference, ticket number, and the UM service confirmation.
Changing or Updating a Booking
If you need to change dates, flights, or names, call Southwest. After any change, ask them to confirm the UM service is still active on the new itinerary.
Adding or Changing the UM Service
To add, remove, or update the service, call Southwest. Make sure the names of the adults dropping off and picking up the child match their official IDs.
Handling Flight Changes, Delays, and Rebooking
Key rule: Only nonstop or direct same-plane flights. No connections or aircraft changes are allowed.
If the flight changes, both adults must stay reachable. Weather or operational issues can cause refusal, so confirm any new flight still meets the route rule.
Cancellations and Refunds
Call Southwest to cancel. Ask for a breakdown of the airfare and the UM service fee. Understand the refund rules and what happens if you don't show up. Save all receipts.
Fees and Extra Costs
The fee: A per-child, each-way fee applies. Check the current Optional Travel Charges when you book.
Get an itemized total: airfare, UM fee, seat selection, baggage, taxes, and any change fees. Ask if siblings on the same flight are charged separately.
Check-in and the Airport Process
At the airport: Use the ticket counter. Arrive at the gate 45 minutes early. The parent must stay until takeoff.
Online check-in is usually blocked for unaccompanied minors. Arrive early and ask if the parent can get a gate pass.
Airport Assistance and the Guardian Handoff
Know who is responsible for the child at each stage: check-in, security, boarding, and arrival. The pickup person must arrive early with a photo ID that matches the booking.
Managing Baggage
The rule: One carry-on and one personal item are allowed. Checked baggage follows the current fare policy.
Keep documents, medicine, and a contact card in the carry-on. Save bag tags and report any lost baggage immediately.
Passports, Visas, and Consent Forms
What you need: Proof of age, itinerary, UM paperwork, and valid photo IDs for both adults. For international travel, also check passport, visa, and notarized consent requirements.
Domestic vs. International Travel
For international flights: The UM route rules and government document requirements must both be met. Check each country's requirements.
Authorized Pickup and Drop-Off Contacts
Only the adult named in the booking can pick up the child. Make sure their ID matches. If you need to change the pickup person, get Southwest's approval in advance.
Real-World Example: Handling a Schedule Change
You get an email about a flight change. Here's what to do:
- Open your booking and compare the old and new flights.
- Check the operator, stops, and times.
- Don't accept the new flight until you've called Southwest and confirmed the UM service is still valid and the route is still nonstop/direct same-plane.
- After confirmation, check guardian contacts, fees, and baggage.
- Share the new confirmation with the pickup person.
On travel day, both adults use the same flight-status source. The sender follows the airport rules, and the pickup person arrives early with ID.
Tips for Keeping Your Booking Accurate
Keep a simple timeline: when you booked, when you made changes, and who approved them. This helps both adults stay on the same page.
Always check the UM service is active after any change—ticket reissue, schedule update, or seat change. Special requests can disappear when a booking is rebuilt.
Keep your child's documents simple and accessible. The child should know the pickup adult's name and carry a paper contact card. Keep medicine and documents in the carry-on.
Before departure, review the policy one more time. Confirm age, route, operator, fee, baggage, and handoff. If something is unclear, ask Southwest for written confirmation.
After the trip, keep receipts until any claims or refunds are settled. Protect your child's privacy—don't post their itinerary online.
Give each adult a short action sheet with the booking reference, service status, flight number, local airport time, meeting point, and emergency contact. Review it with the child. If anything changes, update both copies. This final check ensures everyone has the same information.
Final Action Checklist
Southwest Solo Travel: Reference Table
| Age/Category | Eligibility | Service | Fee | Action |
|---|---|---|---|---|
| Under 5 | Must travel with adult | Not available | N/A | Too young |
| 5–11 | Must use UM service | Required | Per child, each way | Book online/phone/counter |
| 12–17 | Can travel alone | Not enrolled | Normal fare | Young Traveler |
| Connection | Not eligible | No UM | N/A | Choose nonstop/direct same-plane |
Official Source for This Guide
Check this official page before you book, change, or cancel your child's flight.
Frequently Asked Questions
Quick answers to common parent questions about managing a Southwest booking for a solo child traveler.
What age can a child fly alone on Southwest?+
Kids 5–11 must use the UM service unless traveling with someone 12+. Teens 12–17 are considered Young Travelers and can fly alone without the service.
How much does the UM service cost?+
A per-child, each-way fee applies. Check the current Optional Travel Charges when you book.
Which flights allow the UM service?+
Only nonstop or direct same-plane flights. No connections or aircraft changes are allowed.
How do I book the UM service?+
Book online, by phone, or at a ticket counter. Provide drop-off, pickup, and alternate adult details.
What documents does my child need?+
Proof of age, itinerary, UM paperwork, and valid photo IDs for both adults.
What's the baggage allowance?+
One carry-on and one personal item are allowed. Checked baggage follows the current fare policy.
Can I send a car seat or stroller?+
Yes, but adaptive equipment is a separate request and doesn't affect the UM rules.
What happens at check-in?+
Use the ticket counter. Arrive at the gate 45 minutes early. The parent must stay until takeoff.
Can a child with a disability use this service?+
Yes, but the child is checked periodically, not continuously monitored. Discuss special needs before booking.
Can an infant travel alone?+
No. Kids under 5 cannot use the UM service.
What happens if the flight is delayed or changed?+
Weather or operational issues can cause refusal. Both adults must stay reachable.
Does the policy change for international flights?+
The UM route rules and government document requirements must both be met.
Can siblings travel together?+
Yes, but the youngest child's age sets the rules. Confirm with Southwest when booking.
Who can pick up my child?+
Only the adult named in the booking, with matching photo ID.
Can I change the pickup person?+
Yes, but only with Southwest's approval before arrival. Get written confirmation.
Will the crew give medicine to my child?+
No. The child is checked periodically, not continuously monitored. If the child can't manage their own needs, you may need to travel with them.
Can I go to the gate with my child?+
This depends on the airport and security. Ask at check-in.
Do I always need a consent letter?+
Often yes, especially for international travel. Check with Southwest and the authorities.
What should I pack in my child's carry-on?+
Documents, a contact card, medicine, a charger, a sweater, and a snack. Keep it light.
What's the first thing I should check?+
Confirm your child's age (5–11) and that the route is a nonstop or direct same-plane flight.
What proof should I keep from the booking?+
Save the booking reference, the UM confirmation, and all receipts.
Can a route change affect the service?+
Yes. If the flight changes to a connection or plane change, the UM service is no longer valid.
When should I recheck the booking?+
Check after any change and again a day or two before departure.
Continue your planning
Editorial and verification note
Southwest Airlines controls flight acceptance. Government agencies control passports, consent, and entry. We used the official source listed above.
Editorial note: Updated November 14, 2025. AI helped structure the research, but a real person wrote and reviewed this guide. Always compare this information with the latest Southwest instructions.