Most US airlines allow uncomplicated pregnancies to fly until week 36. Some international airlines and cruise lines have stricter cutoffs (28–32 weeks). Always carry a doctor's note after 28 weeks.
Most pregnancies allow safe flying right up to week 36 — but airline rules, comfort, and a few medical considerations matter.
US Airline Pregnancy Cutoffs (Domestic)
| Airline | Cutoff (uncomplicated pregnancy) | Doctor note required after |
|---|---|---|
| American Airlines | Up to delivery | Week 36 (within 4 wks of due date) |
| Delta | No restrictions | Not required (but recommended after 36) |
| United | Week 36 | Week 36 |
| Southwest | No restrictions | Recommended after 38 |
| JetBlue | Week 40 | Week 36 (medical certificate) |
| Alaska | Up to delivery | Within 7 days of due date |
International Airlines Are Stricter
Most international airlines stop boarding pregnant passengers between week 32–36 for single pregnancies, and earlier for multiples. Always check your specific carrier when booking.
Cruise Lines Are Strictest
The major cruise lines (Royal Caribbean, Carnival, Norwegian, Princess, Disney) do not allow passengers to sail past 24 weeks gestation. Confirm before deposit.
Comfort Tips for Pregnant Flyers
- Book an aisle seat (easier bathroom trips, leg circulation)
- Bulkhead row gives extra legroom but no under-seat storage
- Wear compression socks (deep-vein thrombosis risk is higher when pregnant)
- Drink water every 30 minutes
- Walk the aisle every hour
- Pack a small snack — airline meals can be delayed
- Use a small pillow for lumbar support
When to Skip the Flight
Talk to your OB before flying if you have:
- Placenta previa
- History of preterm labor
- Severe anemia
- Recent vaginal bleeding
- Gestational diabetes (poorly controlled)
- Pre-eclampsia
TSA & Security
Pregnant women can request a pat-down instead of millimeter-wave scanner if preferred. Studies show backscatter and mm-wave machines are not believed to harm pregnancy, but you have the right to opt out.
Travel Insurance Matters
Standard travel insurance excludes pregnancy-related events. Look for a policy that specifically covers pre-term labor, pregnancy complications, and accompanies-newborn-home benefits.