Youngest Age to Fly Alone: Every Airline's Minimum
Compare the minimum age requirements for unaccompanied minors across all major airlines. Find which airlines accept the youngest solo travelers in 2026.
Overview
The youngest age a child can fly alone varies by airline. Most major US airlines accept unaccompanied minors from around age 5, though some international carriers set higher minimums. “Flying alone” typically requires enrolling in the airline's Unaccompanied Minor (UM) program, which provides supervised escort service from check-in through arrival.
Children below the minimum age cannot fly without an adult (18+) on the same flight. The UM program is generally mandatory for younger children, after which teens can fly completely solo without the service. Specific age thresholds vary by airline — always confirm directly.
Airlines with UM Services
Per-airline details are being verified against official sources. Contact each airline directly for current policies.
| # | Airline | Policy Status | ||
|---|---|---|---|---|
| 1 | Delta Air Lines | Verify current policy directly with the airline | ||
| 2 | American Airlines | Verify current policy directly with the airline | ||
| 3 | United Airlines | Verify current policy directly with the airline | ||
| 4 | Southwest Airlines | Verify current policy directly with the airline | ||
| 5 | Alaska Airlines | Verify current policy directly with the airline | ||
| 6 | JetBlue | Verify current policy directly with the airline | ||
| 7 | Hawaiian Airlines | Verify current policy directly with the airline | ||
| 8 | Aeromexico | Verify current policy directly with the airline | ||
| 9 | Lufthansa | Verify current policy directly with the airline | ||
| 10 | Turkish Airlines | Verify current policy directly with the airline | ||
| 11 | KLM Royal Dutch Airlines | Verify current policy directly with the airline | ||
| 12 | Air France | Verify current policy directly with the airline | ||
| 13 | Virgin Atlantic | Verify current policy directly with the airline | ||
Frequently Asked Questions
Which airline has the cheapest unaccompanied minor fee?
UM fees vary by airline and are subject to change. Generally, fees range from around $50 to $300+ each way. Contact airlines directly for current pricing.
Do all airlines allow unaccompanied minors on connecting flights?
No. Some airlines restrict UMs to nonstop flights only, especially for younger children. Others allow connections through specific hubs. Always confirm connection policies directly with your airline.
What’s the difference between UM service on domestic vs international flights?
International UM service typically has a higher minimum age, costs more, and requires additional documentation including passport copies and immigration forms. Specifics vary by airline.
At what age can a child fly completely alone without UM service?
This varies by airline — generally between ages 12 and 18 depending on the carrier. Confirm the exact threshold with your specific airline before booking.