Two numbers govern nearly every airline pregnancy policy: 36 weeks for a single pregnancy and 32 weeks for multiples. But the pattern breaks with Delta, which has no cutoff and no medical certificate requirement for normal pregnancies. This index covers 13 carriers and marks each one verified against its own published rules or flagged unverified.
If you’re booking while pregnant, check every carrier on the itinerary — one leg’s permissive policy won’t protect you on another.
Most airline pregnancy policy guides look polished, but they hide a basic failure: they rarely tell you when the cutoff week was last checked. This index fixes that. It consolidates the carriers a Western traveler is most likely to book to, through, or within Asia-Pacific — British Airways, Emirates, Delta, Singapore, Scoot, EVA Air, Cathay Pacific, Ryanair, United, Southwest, American, AirAsia, and Jetstar — and treats verification as part of the answer.
The broad pattern is real: most carriers stop uncomplicated single pregnancies at week 36 and multiples at week 32. Delta is the odd one out, with no published gestational cutoff and no routine paperwork. At the other end, United, Southwest, American, Scoot, and parts of AirAsia leave current wording incomplete, ambiguous, or unverified.
That’s not a reason to pretend the gaps don’t exist. It’s the core of a useful index.
Pregnancy week limits by airline
For uncomplicated single pregnancies, the standard ceiling is week 36. For multiple pregnancies, week 32 is the near-universal limit. British Airways, Emirates, Singapore Airlines, Scoot, EVA Air, and Ryanair all follow that shape, though the exact wording differs.
The exceptions matter more than the rule. Delta has no gestational cutoff at all. Jetstar splits its limits by flight time: on sectors under four hours, a single pregnancy may travel up to week 40. AirAsia bans single pregnancies earlier — at week 35 on most routes, with some AK-brand variants citing week 37. Cathay Pacific uses the same week 36 ceiling for singletons but phrases it as “not accepted onboard” rather than a travel ban.
The full carrier-by-carrier index is below. Verified entries come from airline or government pages; unverified ones are marked.
| Airline | Singleton cutoff week (long flights) | Multiple pregnancy cutoff week (long flights) | Documentation trigger and validity window | Verification status (source/date) |
|---|---|---|---|---|
| British Airways | End of week 36 | End of week 32 | Pregnancy form or doctor/midwife letter required from week 28; no fixed day-count window. | Verified, British Airways medical conditions page, July–September 2026. |
| Emirates | Not allowed after week 36 unless medical department permission. | Around week 32 for multiples (per UAE guidance). | Medical certificate from week 29 confirming single/multiple, no complications, due date, fitness; “current” exam. | Verified, Emirates travel health page and UAE guidance, mid-2026. |
| Singapore Airlines | Beyond week 36 not allowed. | Beyond week 32 not allowed. | Medical certificate required late pregnancy; 10-day validity per Equal Access Plan for Australia after 28 weeks. | Verified, Singapore Airlines page and Equal Access Plan, July–September 2026. |
| Scoot | Week 36 (industry context only). | Week 32 (industry context only). | Mirrors Singapore Airlines; primary Scoot pregnancy page not confirmed. | Unverified for current; no directly accessible official page in 2025–2026. |
| EVA Air | End of week 36. | End of week 32. | Medical letter after week 28, issued within 10 days before travel. | Verified, EVA Air special-assistance page, 2025–2026. |
| Cathay Pacific | Not accepted after week 36. | Not accepted after week 32. | Medical certificate from week 28; dated within 10 days of outbound travel. | Verified, Cathay Pacific help page, August 2026. |
| Ryanair | End of week 36. | End of week 32. | Fit-to-fly letter from week 28; no fixed day-count window. | Verified, Ryanair guidance, 2025–2026. |
| Delta Air Lines | No published cutoff. | No published cutoff. | No routine certificate; no formal validity window published. | Verified, Delta guidance, 2025–2026. |
| United Airlines | No hard week ban published; documentation expected in ninth month. | Not separately specified. | Historic 72-hour certificate window; current wording unconfirmed. | Partially verified; current wording requires direct confirmation. |
| American Airlines | Domestic under 5 hours: within 7 days of delivery requires clearance. | No separate multiple cutoff. | Physician form near due date; no precise validity window stated. | Verified, American/BA pages to Aug 2026; window unconfirmed. |
| Southwest Airlines | Advises against travel from week 38. | No specific cutoff stated. | No routine fit-to-fly certificate or validity window. | Verified, Southwest help article and contract, Sept 2026. |
| AirAsia (AK/Z2 brands) | Banned at 35 or 37 weeks depending on brand. | Banned beyond 32 weeks. | Certificate from 28/29 to 34/36 weeks; 30-day validity; liability statement. | Verified, AirAsia conditions of carriage, July–Sept 2026. |
| Jetstar (JQ/GK) | Week 36 for flights ≥4 hours; week 40 for shorter. | Week 32 long; week 36 short. | Certificate from 28 weeks; no day-count validity window. | Verified, Jetstar help page and conditions, Sept 2026. |
| Source: British Airways; Emirates; Singapore Airlines; Scoot (context only); EVA Air; Cathay Pacific; Ryanair; Delta Air Lines; United Airlines; American Airlines; Southwest Airlines; AirAsia; Jetstar Airways; United Arab Emirates Government Portal | ||||
Fit-to-fly certificate requirements
Week limits are only half of it. The certificate rule kicks in earlier — usually at week 28 or 29 — and the way the date is phrased can decide whether the paper holds at the gate.
EVA Air and Cathay Pacific run the tightest windows: the certificate must be issued within 10 days of travel. AirAsia allows 30 days. British Airways asks that the letter be dated as close to travel as possible but doesn’t publish a day count. Emirates wants a “current” medical examination from week 29, not a fixed number of days.
Delta skips this entirely. American Airlines requires a physician form or letter near the due date, but its public materials never state how long that letter stays valid — a gap not resolved in this research. United’s historical 72-hour window for the ninth month could not be confirmed in current wording.
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Why the cutoffs cluster at week 36 and week 32
These numbers aren’t arbitrary. Airlines converge around week 36 for single pregnancies and week 32 for multiples because the statistical likelihood of an in-flight medical event rises sharply in the final month. A diversion for a potential delivery is operationally expensive and medically risky at altitude.
The medical certificate is the airline’s way of transferring part of that risk assessment back to the passenger’s own obstetrician. The variation in validity windows — EVA’s 10 days versus AirAsia’s 30 — reflects different regulatory and liability frameworks, not just administrative whims.
What this means for your booking
Check every leg separately. A long-haul Emirates flight with a medical certificate from week 29 doesn’t help if your connecting AirAsia flight applies a stricter or unverified rule. If any carrier on the ticket crosses its cutoff, the denial happens at the airport — not at booking.
For award tickets and status runs, that’s worse: a denied boarding under a pregnancy policy may not trigger the same protections as an ordinary cancellation. Treat the table as a pre-booking checklist, not a post-booking reference.
If a carrier appears as unverified, call or check its current conditions of carriage before you pay.
Key terms
- Fit-to-fly certificate
- A medical document confirming a passenger is safe to travel. Airlines typically require it from week 28 or 29 of pregnancy, with the certificate stating the due date, whether the pregnancy is single or multiple, and that no complications are present. In this index, the certificate’s validity window ranges from 10 days at EVA Air and Cathay Pacific to 30 days at AirAsia, while Delta requires none at all.
- Gestational cutoff
- The latest week of pregnancy at which an airline will accept a passenger for travel. Most carriers set this at week 36 for single pregnancies and week 32 for multiples, though the exact phrasing varies from “not allowed” to “not accepted onboard.” Delta is the exception in this index, publishing no cutoff for ordinary pregnancies.
- Conditions of carriage
- The legal contract between an airline and its passenger, setting out the rules that govern a ticket. Pregnancy limits, documentation requirements, and refusal-of-boarding rights all sit inside this document rather than in a separate maternity policy. When a carrier’s pregnancy page is unverified, the conditions of carriage are the document to check before paying.
- EU Regulation EC 261
- The European Union rule that sets compensation and assistance rights for passengers denied boarding or delayed on flights within, into, or out of the EU. It applies to pregnancy-related boarding refusals only through the ordinary contract of carriage, not as a maternity-specific protection. On European routes, a passenger refused for a pregnancy policy issue may still have a claim under this regulation.
Questions? Answers.
Frequently asked airline pregnancy policy questions
Is there a limit to how many weeks pregnant you can fly?
Most major airlines set a ceiling of week 36 for uncomplicated single pregnancies and week 32 for multiples. Delta has no gestational cutoff, Southwest uses advisory language around week 38, and Jetstar permits up to week 40 on short sectors under four hours.
Can I still fly at 32 weeks pregnant?
At 32 weeks, a single pregnancy is allowed by most carriers, though a medical certificate is usually required from week 28 or 29. For multiple pregnancies, week 32 is the cutoff on most airlines, so travel may not be permitted.
Why can’t you fly after 37 weeks?
Most carriers prohibit travel after week 36 for a single pregnancy because the risk of in-flight delivery and diversion rises. That’s why the cluster settles just before week 37; some carriers have special permission routes but ordinary boarding is closed.
Can I travel 4 hours away at 37 weeks pregnant?
A 4-hour flight at 37 weeks is generally not permitted. Jetstar’s long-flight single cutoff is end of week 36, and most other carriers stop at week 36. Jetstar only extends to week 40 for sectors under four hours, so a four-hour sector does not qualify.
Is it safe to fly at 34 weeks pregnant?
At 34 weeks with a single pregnancy, most indexed carriers allow travel but require a medical certificate or fit-to-fly letter. Delta requires no certificate. You should still get individual medical advice before flying.
