One of the most searched questions before any flight: can you bring both a carry-on bag AND a personal item? The short answer is yes — almost every airline allows one of each. But the size rules, what counts as a personal item, and how strictly they’re enforced vary significantly by airline.
Carry-On + Personal Item: Quick Summary
- Allowed on most airlines: ✅ Yes — 1 carry-on + 1 personal item
- Personal item goes: Under the seat in front of you
- Carry-on bag goes: In the overhead bin
- TSA involvement: TSA does not regulate carry-on counts — airlines do
- Exceptions: Basic Economy fares on some airlines (American, United, Delta) restrict you to personal item only
What Is a Personal Item?
A personal item is a smaller bag that must fit under the seat in front of you. Common personal items include:
| Item | Counts as Personal Item? |
|---|---|
| Small backpack (under seat size) | ✅ Yes |
| Laptop bag or sleeve | ✅ Yes |
| Purse or handbag | ✅ Yes |
| Tote bag | ✅ Yes |
| Briefcase | ✅ Yes |
| Camera bag | ✅ Yes |
| Diaper bag | ✅ Yes (usually free even on Basic Economy) |
| Duffel bag (small) | ✅ Yes (if it fits under seat) |
| Rolling carry-on suitcase | ❌ No — that’s a carry-on, not a personal item |
| Full-size backpack | ❌ No — usually too large for personal item |
Personal Item Size Limits by Airline
Each airline defines its own personal item size limit. These are the most common restrictions:
| Airline | Personal Item Size Limit |
|---|---|
| American Airlines | 18“ x 14“ x 8“ |
| Delta Air Lines | Must fit under seat (no published dimensions) |
| United Airlines | 17“ x 10“ x 9“ |
| Southwest Airlines | Must fit under seat |
| JetBlue | 17“ x 13“ x 8“ |
| Alaska Airlines | 17“ x 13“ x 6“ |
| Spirit Airlines | 18“ x 14“ x 8“ |
| Frontier Airlines | 18“ x 14“ x 8“ |
| Ryanair | 40 x 20 x 25 cm (personal item is the FREE bag) |
| easyJet | 45 x 36 x 20 cm |
| Lufthansa | 40 x 30 x 10 cm (second carry-on) |
[!IMPORTANT] Size limits are enforced at the gate on some airlines (especially Spirit and Frontier) using bag sizers. If your personal item doesn’t fit, you’ll be charged to check it — often $99+ at the gate.
Carry-On Bag Size Limits by Airline
The standard carry-on size is 22“ x 14“ x 9“ (56 x 36 x 23 cm), but airlines vary:
| Airline | Carry-On Size Limit | Weight Limit |
|---|---|---|
| American Airlines | 22“ x 14“ x 9“ | None (domestic) |
| Delta Air Lines | 22“ x 14“ x 9“ | None (domestic) |
| United Airlines | 22“ x 14“ x 9“ | None (domestic) |
| Southwest Airlines | 24“ x 16“ x 10“ | None |
| JetBlue | 22“ x 14“ x 9“ | None |
| Spirit Airlines | 22“ x 18“ x 10“ | 40 lbs |
| Frontier Airlines | 24“ x 16“ x 10“ | None |
| Ryanair | 55 x 40 x 20 cm | 10 kg (with Priority boarding) |
| British Airways | 56 x 45 x 25 cm | 23 kg |
| Emirates | 55 x 38 x 20 cm | 7 kg |
Basic Economy: When You Can Only Bring a Personal Item
This is the most important exception. Basic Economy fares on the three major U.S. carriers restrict carry-on bags:
| Airline | Basic Economy Carry-On Rule |
|---|---|
| American Airlines Basic Economy | Personal item only. No overhead carry-on unless you have status or co-brand credit card |
| United Airlines Basic Economy | Personal item only. No overhead carry-on |
| Delta Basic Economy | Personal item only on most routes. No overhead carry-on |
[!WARNING] If you book Basic Economy and show up with a carry-on bag expecting overhead bin space, you will be required to check it and pay the checked bag fee (typically $35–$65) at the gate.
Southwest Airlines does NOT have Basic Economy — all Southwest fares include one carry-on + one personal item + two free checked bags.
Can You Bring Both a Carry-On and Personal Item on International Flights?
Yes — international flights follow the same one carry-on + one personal item rule, but weight limits are more commonly enforced by international carriers:
- European carriers (Ryanair, easyJet, Wizz Air) are particularly strict — often your personal item IS your only free bag, and carry-ons require purchasing a “priority” fare add-on
- Middle Eastern carriers (Emirates, Qatar, Etihad) allow one carry-on + one personal item with generous weight limits (7–10 kg)
- Asian carriers (Singapore Airlines, ANA, JAL) typically allow 7–10 kg carry-on + personal item
Tips to Maximize Your Carry-On + Personal Item Allowance
- Pack your personal item last — fill your carry-on first, then use the personal item for overflow, valuables, and in-flight essentials
- Use a structured personal item — a laptop backpack or organized tote holds far more than a slouchy bag
- Know your fare class — always check if your ticket includes overhead bin access before packing
- Wear your heavy items — jacket, boots, and heavy sweaters don’t count toward bag limits when worn
- Use packing cubes — compress clothing in your carry-on to maximize space for your personal item to hold overflow
- Pack compliance-sensitive items securely — pack your electric toothbrush, protein powder, and quart-sized liquids bag at the top of your bag for fast checkpoint access (or get TSA PreCheck to avoid unpacking altogether).
What If I Have More Than 2 Bags?
If you have more than one carry-on and one personal item:
- You must check the extra bags (fees apply — typically $30–$65 per bag)
- Gate agents will ask you to check overflow bags if overhead bins are full
- Do not try to bring two carry-on bags — gate agents actively count and size-check bags
Frequently Asked Questions
Q: Can you bring a carry-on and a personal item on every flight? A: On standard fares, yes. On Basic Economy fares with American, United, or Delta, you are limited to a personal item only unless you have elite status or a co-brand credit card.
Q: What counts as a personal item? A: A small backpack, purse, laptop bag, briefcase, camera bag, or tote that fits under the seat in front of you. The exact size varies by airline but is typically around 18“ x 14“ x 8“ or smaller.
Q: Can I bring a personal item AND a carry-on for free? A: On most airlines with standard fares, yes — both are included in your ticket price. On ultra-low-cost carriers like Spirit and Frontier, carry-on bags cost extra (personal items are free).
Q: Does a purse count as a personal item? A: Yes. A purse is the quintessential personal item. As long as it fits under the seat, it counts as your personal item.
Q: Can I use my personal item as a second carry-on in the overhead bin? A: No. Personal items must go under the seat. If you put your personal item in the overhead bin, a flight attendant will likely ask you to move it.
Q: What if I have a medical bag or baby diaper bag? A: Medical bags and diaper bags are typically allowed as a free additional item on top of your carry-on and personal item. Inform the gate agent if you are traveling with a medical device bag.
Conclusion
The standard rule across virtually every airline is one carry-on bag + one personal item per passenger. The carry-on goes overhead; the personal item goes under the seat. The biggest exception is Basic Economy fares, which restrict you to a personal item only. Always check your specific fare class and airline rules before you pack — especially on ultra-low-cost carriers where carry-on bags cost extra.
See Also
- What Is TSA PreCheck? Full Benefits & Rules Overview
- TSA PreCheck Guide — Skip the Shoe Removal Line
- TSA 3-1-1 Liquids Rule for Carry-On Bags
- Can You Bring an Electric Toothbrush on a Plane?
- Can You Bring Protein Powder on a Plane?
- TSA Wait Times at Major Airports