A woman at the Lima airport gate was stuffing half her suitcase into a garbage bag. JetSMART wanted $52 for her excess baggage. I was standing right there with my 7 kg backpack, and for the first time it really clicked: less stuff isn't a sacrifice. It's freedom.
Four weeks, five countries, one backpack. Colombia, Peru, Bolivia, Chile, Argentina. As a solo female traveler, going carry-on only wasn't just about packing light. It was my most important safety decision. No suitcase circling the baggage carousel (or not circling, which is worse). No heavy bag slowing me down on cobblestone streets. On international routes, airlines lose five times more luggage than on domestic ones. That alone was reason enough.
Here's my complete packing list for South America as a female solo traveler with carry-on only. Plus the airline comparison table I couldn't find anywhere before my trip.
Quick answer: For 4 weeks in South America as a solo female traveler, 7 kg carry-on is enough if you do laundry every 4 to 5 days. Pack merino wool (2 to 3 pieces), a lightweight down jacket, rain shell, and flip-flops. For altitudes above 3,400 m in Cusco and La Paz: get a Diamox prescription from your doctor before leaving. The list covers clothing, tech, toiletries, and safety gear.
The Backpack: Why Anti-Theft Isn't Optional for Solo Female Travel
Honestly, I thought about my bag more than anything else. Not the big dangers, but the small ones. Pickpockets in Bogota. Someone tugging at my zipper in La Paz while I was looking the other way.
About 70 percent of women who travel solo worry about their safety. I get it. But most advice talks about behavior. What I wanted was a backpack for South America that made those decisions for me.
That's why the Travelon Anti-Diebstahl-Rucksack Classic turned out to be the best purchase of the entire trip. Hidden zippers, slash-resistant straps, a concealed passport pocket. Might sound like overkill. It doesn't feel like overkill when you're walking through Cartagena's old town alone and don't want to keep reaching back to check if your bag is still closed.
If you want to know which models actually deliver on those promises, our test of anti-theft carry-on backpacks covers them properly.
The cobblestone streets in Buenos Aires and Cusco are the second reason a backpack beats a rolling suitcase. Small wheels plus old sidewalks equals disaster. A Dutch traveler at my hostel in Cusco, I think her name was Lena, ditched her trolley after three days and bought a backpack instead. She didn't regret it.
Travelon Anti-Diebstahl-Rucksack Classic
My Packing List South America Female: 7 kg, 4 Weeks
Packing four weeks into 7 kg sounds like deprivation. It wasn't. As a woman traveling solo through South America with only carry-on luggage, this isn't a compromise. It's the smarter choice.
The trick is simple: I did laundry every four days. Every hostel on the backpacker circuit offers laundry service, usually $2 to $4 per kilo. In Medellin I got a full bag washed for $2.50, folded and everything. In Santiago it cost nearly double. And merino wool is your best friend. Dries fast, doesn't smell.
If you're wondering whether the same approach works in tropical heat on long-haul routes, our story about a similar experience backpacking Southeast Asia has a lot of overlap.
Clothing (approx. 2.5 kg):
2 t-shirts (merino wool blend). Two really is enough. I doubted this every single trip and was always glad I stuck with it.
1 MERIWOOL Damen Funktionsunterwäsche 100% Merinowolle mittelschweres Langarm-Thermohemd as base layer
1 lightweight hiking pants that convert to shorts
1 leggings
1 lightweight down jacket (needed it at minus 5 in La Paz, stuffed it in my pack at 32 degrees in Cartagena)
1 rain jacket
3 underwear, 3 pairs socks (merino)
1 bikini. The one thing I'd double next time. One to wear, one to dry. You figure this out by day three in Cartagena.
Flip-flops for hostel showers
Tech and security (approx. 1.5 kg):
Phone + charging cable
Power bank (10,000 mAh)
PASCACOO Reisepasshülle RFID-blockierend Leder Kartenetui Reisezubehör für Damen und Herren for passport and cards
Universal adapter
Headphones
When you're doing solo female travel with carry-on luggage, the security of your gear isn't optional. The tech pocket was the first thing I checked and the last thing I packed every single morning.
Hygiene and health (approx. 1 kg):
Toiletry bag (liquids under 100 ml)
Sunscreen, insect repellent
Diamox (for altitude sickness, prescribed by doctor)
Ibuprofen
Basic first aid kit
Organization (approx. 0.5 kg):
1 thin tote bag for groceries
The backpack itself: approx. 1.5 kg
The layering system is the whole point of this packing list for South America as a female traveler. From 32 degree coastal heat in Cartagena to minus 5 in La Paz (3,640 meters altitude). No bulky winter coat. Base layer plus down jacket plus rain shell. Works. Doesn't always look stylish. But you stay warm.
MERIWOOL Damen Funktionsunterwäsche 100% Merinowolle mittelschweres Langarm-Thermohemd
Carry-On Rules: What LATAM, Avianca and the Rest Actually Allow
This was the part I had to dig up from dozens of airline websites before leaving. No solo female travel packing list I found covered all the South American carriers in one place. So here it is, based on what I actually flew:
| Airline | Dimensions (cm) | Weight | Personal Item | Watch Out |
|---|---|---|---|---|
| LATAM Airlines | 55 x 35 x 25 | 10 kg (Economy) | 45 x 35 x 20 cm | Basic fare: carry-on NOT included |
| Avianca | 55 x 35 x 25 | 10 kg | 45 x 35 x 25 cm | Since Jan 2026: Light fare on intl. routes includes carry-on |
| Aerolíneas Argentinas | 55 x 35 x 25 | 10 kg (intl.) / 8 kg (domestic) | 40 x 30 x 15 cm, max 3 kg | Buenos Aires staff actually weigh bags at the gate |
| SKY Airline | 55 x 35 x 25 | 10 kg | 45 x 35 x 20 cm | Zero fare = personal item only |
| JetSMART | 45 x 35 x 25 | 10 kg | Under seat | Only 45 cm height! Gate purchase costs 2.5x more |
Sources: JetSMART Baggage Policy | Aerolíneas Argentinas Policy | LATAM Baggage Policy
The JetSMART trap: Every other South American airline allows 55 cm height. JetSMART allows only 45 cm. My backpack was 48 cm. Did I get through? Barely. But I saw people with standard 55 cm backpacks paying $50 at the gate.
And Aerolíneas Argentinas on domestic flights: only 8 kg, not 10. I didn't know that before leaving. In Buenos Aires, staff stand at the gate with scales. I think they enjoy it.
For a full breakdown of what gate fees actually cost across airlines (Coming Soon), it's worth a look before booking any South American itinerary.
Altitude Sickness: What Your Packing List Needs
You feel it before you understand what it is. I felt it for the first time in Cusco, 3,400 meters, day two. La Paz sits at 3,640 meters. The Salar de Uyuni at 3,665. Numbers that sound abstract until you feel them. Headaches, nausea, shortness of breath. About 17 percent of travelers to Cusco get seriously sick from altitude. And fitness doesn't protect you. Not at all.
I got a Diamox (acetazolamide) prescription before leaving. Ibuprofen for headaches. Coca tea is available locally, but the medication needs to be in your bag before you fly. Maybe you won't need it.
I did. I was lying on the hostel bed in Cusco waiting for the headache to stop. It didn't. Without those pills, the Machu Picchu trek wouldn't have just been miserable. It wouldn't have happened.
What I'd Do Differently
A few things I'd change. Not the whole approach. Just the details.
Not packing a second bikini was my biggest mistake. One to wear, one to dry: in Cartagena, where you're in the water every day, a damp bikini that never fully dries gets old fast. Next time, I'm bringing two.
The rain jacket was the right call but too heavy. I actually needed it in Patagonia, but in Colombia and Peru it was mostly dead weight for two weeks. A lighter version would have done the same job and saved about 200 grams. At 7 kg, every gram counts.
What I'd pack again without hesitation: the packing cubes. Not because they save space. Because they prevent chaos. When you're unpacking and repacking daily, you lose more time sorting through a disorganized bag than you think.
Four weeks, 7 kg, five countries. The packing list for South America as a solo female traveler is shorter than you think. Would I do it again? In a heartbeat. Maybe next time I'd swap the bikini for a second one and pick a lighter rain jacket. But the principle stays: less luggage, more freedom. The sense of freedom at the airport exit starts with how you pack.
If you're new to carry-on-only travel, our general carry-on packing list as a starting point (Coming Soon) has a compact checklist that works for any trip type.