A flight is often the single biggest line on a trip — and its receipt is one of the few that almost never gets captured cleanly. Part of that is timing: you book a flight weeks ahead, at a keyboard, and the confirmation lands in your inbox at a moment when the trip feels far away and filing it feels optional. And part of it is the document itself. A flight receipt is not one number on a slip. It's a fare, a stack of taxes and surcharges, a row of add-ons you clicked through at checkout, and a booking total that isn't always the amount your card was actually charged. Here's how receipt OCR handles an airfare receipt, and how to make sure the figure that lands in your books is the one that left your account.
Why an airfare receipt is its own puzzle
Most receipts answer one question — how much did this cost — with one printed number. A flight receipt answers it with a small table, and every row is a plausible "total":
- The base fare. The price of the seat before anything is added. It's the number the airline advertises and almost never the number you paid.
- Taxes, fees, and surcharges. Airport charges, fuel surcharges, government taxes, and on international tickets a genuinely long list of three-letter codes. These can add up to a large fraction of the fare.
- Ancillaries — seats, bags, meals, insurance. The extras you clicked through at checkout. They're often listed separately, sometimes on a different line or even a different email.
- The grand total. The sum of all of it — and the one figure that matches your card statement, assuming nothing changed after booking.
A scanner reading that table has to guess which line you meant. And unlike a shop receipt, where the total sits alone at the bottom in bold, a flight receipt frequently puts the fare and the total near each other in similar type. That's the trap: the number you want is the total-paid, not the fare, and the two are easy to confuse at a glance.
The number OCR drafts, and the one you confirm
Receipt OCR is genuinely good at the parts of a flight receipt that are printed cleanly. Because most airfare receipts arrive as computer-generated PDFs rather than photographed paper, there's no glare, no thermal fade, no focus to miss — a clean digital receipt is the easy case for OCR, far easier than a crumpled slip. Starlog's OCR drafts the airline name and an amount off the receipt for you.
But "an amount" is exactly where a flight receipt earns its reputation. With several currency figures stacked close together, the draft amount is a starting point, not the answer — which is true of every field OCR fills in, just more so here. So the two-second habit that saves you a reconciliation headache later: glance at the drafted amount and confirm it's the total you paid, not the base fare and not a subtotal. On a flight receipt, you own the total; let OCR handle the airline.
The cleanest cross-check is your card statement. The amount that hit your card is the ground truth for what the flight cost; the receipt is the evidence of what it was for. If those two numbers disagree, the receipt is usually showing you a fare or a pre-add-on subtotal, and the statement is showing you reality.
Confirmation, e-ticket, tax invoice: keep the right one
Book a flight and you'll typically end up with more than one document, and they are not interchangeable:
- The booking confirmation. The email that arrives first, often within seconds. It shows the itinerary and usually the total, and for most people it's a perfectly good expense record.
- The e-ticket / itinerary receipt. The formal receipt with the fare breakdown and the ticket number. This is the one to keep when you need the detail.
- The tax invoice. A separate document, increasingly issued by the airline or the travel portal, that breaks tax out properly. In India this is the one that matters for input tax credit — more on that below.
The rule of thumb: keep the document that carries the final amount you paid as your primary record, and grab the tax invoice as well whenever tax treatment is in play. A tool that keeps the original file in your own Drive means you're not forced to decide at booking time which version you'll wish you'd saved.
It's a file, not a photo — bring it in as one
The whole "snap a photo" reflex doesn't fire for a flight, because there's nothing physical to photograph. The receipt is already a PDF sitting in your inbox, which is precisely why it gets left there looking handled while never actually getting logged. The fix is the same one that works for any emailed or PDF receipt:
- Save the PDF from the email, or if the receipt is the body of the email itself, print-to-PDF it into a stable file.
- Add it through the file picker. Starlog's capture takes a PDF the same way it takes a photo, and runs OCR on the first page — where the airline and the total almost always sit.
- Confirm the total, set the date and category, and tag the trip. The date and category are yours to set; if the flight belongs to a client visit or a project, assign it to that report while you still remember why you flew.
Do it when the confirmation lands, not the night before your taxes are due, and the biggest line on the trip is filed before you've even packed.
The fees that ride along after booking
Two things about flights make them leak expenses in a way a coffee never does.
First, the add-ons often arrive after the original receipt. You book the flight in March, then pay for a checked bag at the airport in May and change your seat online in between. Each of those is a separate charge, sometimes with its own emailed receipt, sometimes with none at all. If you only ever file the booking confirmation, you quietly under-count what the trip actually cost you. When a fee generates its own receipt, capture it as its own expense against the same trip; when it doesn't, the card statement is your backstop.
Second, a lot of flights are booked in a currency that isn't your own. An international ticket bought on a foreign carrier's site can bill in another currency, and the number on the receipt won't match the number on your card once the conversion and any card fee land. Record what your card was actually charged in your own currency, and keep the original receipt as the evidence of the foreign amount — foreign-currency receipts are their own small discipline, and a flight is the most common place a freelancer meets one.
US and India: what a flight receipt has to prove
A flight is usually a clean, defensible business expense — when it's for business, and when you can show it was.
- In the US, travel away from your tax home for business is generally deductible, but the receipt is only half the record. The other half is the purpose: which client, which project, why you flew. The airfare receipt proves the spend; your note proves it was business. Add that note when you capture the receipt, because "DEL–BLR, ₹8,900" tells future-you nothing about whether it was deductible. As always, where travel sits among your deductions is worth confirming with your CPA.
- In India, GST on flights is claimable as input tax credit if the ticket is a business expense — but only against a proper tax invoice showing the airline's GSTIN and yours, with the tax broken out. The booking confirmation or the payment screenshot generally won't cut it; a receipt isn't automatically a tax invoice. Economy and business class are treated differently for ITC, too, so bring in the tax invoice specifically and confirm your situation with your CA.
Both of those are things you add in the moment you capture the receipt — the business purpose, the right document — not things any scanner can read off the page for you.
Where it goes
Once the total is right and the purpose is noted, a flight receipt behaves like any other. It files itself into your own Google Drive, in the per-business year-and-month tree, next to the hotel and the taxis and the client dinners from the same trip. Grouped into a report, that scatter of travel charges becomes "the Bangalore pitch, everything in one place" instead of a dozen line items you're trying to reunite months later — that trip-and-project grouping is what makes a business trip add up to a single number. And it turns up already categorised in the year-end export your accountant can actually use. That's the shape of it with Starlog: OCR drafts the airline, you own the total, and the trip's biggest receipt stops being the one you forget.
The takeaway
A flight receipt is hard for the same reason a restaurant slip is: it's crowded with numbers that all look like the total, and the one you need — the tax-and-fees-and-add-ons total your card actually paid — is easy to confuse with the fare the airline leads with. So use receipt OCR for what it's good at, reading the airline and drafting a figure, and take ownership of the number that matters. Bring the PDF in when it lands, confirm the total against your card, note which client you flew for, and let it file itself — so the biggest line on the trip is a clean, defensible entry instead of a fare you're second-guessing next spring.