One ticket or three - the true cost of a cheap split itinerary
A sole-trader client in Colombo must attend a London conference and then a Berlin trade fair, returning from Frankfurt. The consultant prices a through open-jaw CMB–LHR via DXB, one stopover free, and FRA–CMB on the same carrier group: USD 1,180 all-in, two pieces of 23 kg, one ticket, interline partners. The client then finds a cheaper construction: an LCC CMB–DXB–STN for USD 380 including 20 kg, a separate one-way LON–BER for USD 50, and a separate one-way FRA–CMB on another carrier for USD 510 - USD 940 in total. She plans to arrive at STN at 06:55 and transfer to London, and on the return to fly BER–FRA at 07:05 on the morning of the 11:20 FRA–CMB departure. She will carry a 24 kg sample case and a laptop, and she values price. A signed contract depends on her being in Colombo for a meeting two days after the FRA departure.
1. Compare the two constructions on total cost and on contract, not on fare alone.
Read the worked answer
Close the price gap first. The headline difference is USD 240, but it shrinks fast:
- Baggage: her sample case is 24 kg against the LCC's 20 kg. Prepaid excess of roughly USD 10–15 per kilo means about USD 40–60 on the LCC sector alone, and the return carrier may charge again. The through fare already includes 2 × 23 kg.
- Ground transfer: STN to central London adds roughly USD 25–40 and an hour, against arrival at LHR on the through fare.
- Realistic gap after those items: somewhere around USD 150, not USD 240.
Now price what that USD 150 buys.
Contract. A through ticket is one contract of carriage. If the KUL or DXB sector is late, the carrier must rebook her on its own services and, where applicable, provide care; her baggage is checked through. On three separate tickets, each carrier's Conditions of Carriage apply only to its own ticket - a delay on the LCC obliges nobody to rebook her onto the LON–BER flight, and a missed long-haul sector is simply a forfeited coupon with no rebooking right.
Baggage. Separate tickets and, in this case, a non-interline LCC mean no through-checking: she reclaims and re-checks at every break point, which is precisely where the connection time evaporates.
Fare construction. The through fare's stopover and routing conditions must be respected; but the split construction has its own trap - a no-show on one coupon can void the rest of that ticket, and she must never skip a sector.
So the honest comparison is: about USD 150 for through-checked bags, a single contract and carrier protection on a trip where a signed contract is at stake.
2. Where exactly does this itinerary break, and how would you de-risk it if she insists on the split?
Read the worked answer
The weak points, in order of severity:
- The return. BER–FRA at 07:05 against an 11:20 FRA–CMB departure gives a nominal three-hour buffer, but on separate tickets she must collect bags, change terminals and re-check, and a 07:05 departure is exactly the slot that absorbs the morning's first delays. If it cancels, the USD 510 is gone and she misses the meeting that the contract depends on.
- The LCC arrival. A 06:55 arrival at STN, followed by a separate transfer and a separate LON–BER ticket, leaves no protection at all if the LCC is late. Any delay cascades into the conference.
- Baggage. A 24 kg case on a 20 kg allowance invites charges at the counter and, worse, the temptation to repack at a check-in desk with a flight closing.
De-risking, if she will not buy the through fare:
- Prepay the LCC baggage allowance online; never arrive at the counter with an over-weight bag and a tight flight.
- Move the BER–FRA sector to the previous evening and overnight at or near Frankfurt. This converts the single largest risk into a hotel bill, and it is the cheapest insurance in the whole plan.
- Reconfirm all three bookings 72 and 24 hours before departure; LCC schedule changes are notified by email and are easy to miss.
- Confirm the insurance position. Most travel policies do not treat a self-built separate-ticket misconnection as a covered missed departure; do not let her assume otherwise.
- Keep each ticket in its own PNR with its own record locator, and give her a printed itinerary separating them so check-in staff do not try to through-check what cannot be through-checked.
3. How would you present the choice and document it?
Read the worked answer
Present one page, two columns, total cost in each: fare, baggage, transfers, the overnight, and the protection she does or does not get. Put the recommendation in writing rather than in conversation: on these facts the through fare at USD 1,180 is the better buy, because the value of the contract she is travelling to sign exceeds the USD 150–240 difference, and the return is the single point where the split itinerary can fail catastrophically.
Then respect her decision. If she chooses the split, the agency should:
- Quote the prepaid baggage and the Frankfurt overnight as part of the split option, so she is comparing like with like;
- Obtain a written acknowledgement that she has been advised the sectors are on separate tickets, that a delay on one does not protect the next, and that she accepts the risk;
- Recommend travel insurance explicitly and state in writing what it will not cover;
- Issue each ticket as its own PNR, send a written itinerary with all record locators and the check-in times, and note clearly that she must not miss or skip any sector.
Record it in the CRM: the date, the two options priced, the advice given, the client's election and the risk acknowledgement. If the return goes wrong, that record is what separates a professional who advised correctly from an agency that sold a cheap fare and said nothing. It also protects the client relationship - she will remember that the risk was named before she flew, not after.