Your period is due Thursday. Your flight is Thursday. Or worse: it wasn't due for a week and it turned up in the airport bathroom anyway. Travel and periods have a way of finding each other.
Between us we've done long-haul with cramps, a road trip with a surprise arrival, and one overnight bus we still talk about. Here's what we pack and do now.
Why travel messes with your period
Three things, mostly. Stress is the first, and "good" stress counts. Cleveland Clinic explains that cortisol interferes with the link between the hypothalamus, the pituitary and the ovaries, which can delay a period, lighten it, or skip it. Jet lag is the second: Mayo Clinic describes a body clock still set to the zone you left, and lists stomach upset, diarrhea and constipation among the symptoms, which stack neatly on top of period symptoms. Sleep is the third. A Sleep Medicine review found that women who work shifts, whose body clocks are routinely disrupted, are more likely to report irregular and longer cycles.
So the period that shows up early or late on a trip isn't in your head. Our honest limitation: we can't tell you which way yours will go. One of us was six days late after a week in Tokyo. Another was three days early on a drive to Florida. Plan for both.
1. Pack for the period you might not get
Carry-on, not checked. A checked bag is the one thing more likely to go missing than your period is to arrive on time. Ours holds two days of whatever product you use, a strip of painkillers, two heat patches and a snack. The full list is in the period kit checklist, and the small version fits in a pencil case.
2. Know which heat patches fly
This is the hack that saves a trip. Air-activated stick-on patches, the disposable kind that warm up when you open the packet, are not regulated as hazardous by the FAA and can go in carry-on or checked bags. Gel heating pads are different: the TSA lists them as checked-bag only, because the gel counts as a liquid. Electric pads are allowed in both, but you need a socket. For the plane itself, the disposable patch under your waistband is the one that works. Put it on after security, and don't open the packet early.
3. Time painkillers by the clock you left, not the one you land in
Mayo Clinic suggests starting ibuprofen or naproxen at regular doses the day before you expect your period and keeping it up for two or three days. Across time zones, count hours since your last dose rather than reading the local clock, and set a phone alarm in your home zone. Take it with food. If you take a daily contraceptive pill, the same logic applies and matters more, so ask your pharmacist before you go.
4. The bloat is partly the plane
You're not imagining the tight waistband at 35,000 feet. Cleveland Clinic notes that cabin pressure changes make the gas in your stomach and intestines expand, and that cabin air is unusually dry. The CDC Yellow Book puts cabin humidity at roughly 10 to 20%. Put that on top of the water retention many people get before a period and you have the flight-day bloat. Water instead of fizzy drinks, easy on the salty snacks, and a walk down the aisle every hour or so. We wrote up the hormonal side in hormonal bloating: 6 things that help.
5. Walk the aisle, stretch at the gate
Movement is the intervention with the largest effect in the period pain research, but the trials had women exercising three or more times a week for weeks, and a Cochrane review rates the evidence low quality. A lap of the terminal won't cancel a cramp. It does loosen the lower back that sitting in a middle seat has been tightening for three hours, and it helps with the gas.
6. Ginger, because every airport sells it
A 2015 systematic review found 750 to 2,000 mg of ginger powder a day during the first days of a period lowered pain scores across four small placebo-controlled trials. Capsules pack flat and get through security without a second look. A ginger tea at the gate is a far smaller dose, but it's warm, it's easy to find, and it's not a third coffee.
What we make, and why. We're a small team who has had this exact Thursday, so we made Girl Chocolate: a dark chocolate bar made for the days around your period, with magnesium and other functional ingredients, sold as a pouch of eight bars for one cycle. The bars are flat, they go through security as food, and one in the pencil case is the snack in hack one. Made for your cycle, and it supports PMS relief*.
7. Sleep is the hack you can't pack
The same review found that self-rated sleep quality is lowest around menstruation. Add jet lag and you're running on the two worst nights of the month at once. Window seat, eye mask, no caffeine after lunch, and give yourself a slow first morning. The period will do what it does. You'll cope better rested.
Print our free period kit checklist covering home, school and travel, with the under-$40 kit and TSA notes. 1 page, PDF, no email needed.
Download the PDFSources
- Cleveland Clinic, Can stress delay your period?
- Mayo Clinic, Jet lag disorder: symptoms and causes
- Baker and Driver 2007, Circadian rhythms, sleep, and the menstrual cycle (Sleep Medicine)
- FAA PackSafe, Outdoor equipment (air-activated body warmers)
- TSA What Can I Bring, Heating pad (gel)
- Cleveland Clinic, How airplane travel affects your body
When to talk to a doctor
Everything above is for ordinary period pain. See a doctor if the pain stops you doing daily life, if you are bleeding through a pad or tampon every hour, if the pain suddenly got much worse than your usual, or if you have pain with a fever. None of those are things to manage with a hack.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
