Series Fares in India: A Travel Agent's Complete 2026 Guide
By Arjun Kapoor (Arjun Kapoor tracks error fares, mileage runs and award-chart sweet spots for Indian travellers. He moderates two Telegram fare-alert channels and has booked Europe round-trips at sub-₹25,000 four times in the last 24 months.) · Published · Last updated · 12 min read
Series fares are how a lot of Indian agents quietly beat the airline website on busy sectors — buy a block of seats at a net rate from a wholesaler, add your own markup, and sell. But the rules are unforgiving: non-refundable, date- and flight-locked, with hard name-submission deadlines. This guide walks through how series fares actually work in 2026, who sells them, the GST and TCS basics, the real risks, and a checklist before you put money on a block.
Quick answer
Series fares (also called block or allotment fares) are seats a wholesaler or consolidator pre-buys in bulk on fixed flights and dates, then resells to agents at a discounted net fare. You add your own markup and sell to the customer. The trade-off: they're almost always non-refundable, locked to a specific flight and date, and carry hard name-submission deadlines. They're great for predictable, high-demand sectors — and a fast way to lose money if you mis-judge demand or pick a shaky supplier. Always confirm the exact terms, deadlines and charges in writing before you block.
What a series fare actually is
A series fare starts upstream of you. A consolidator or wholesaler negotiates a block of seats — say, 30 or 40 seats on a specific Delhi–Srinagar flight every Saturday through the season — directly with the airline. The airline likes it because it locks in load on flights it might otherwise struggle to fill. The consolidator gets those seats at a net fare: a wholesale price that sits below the published web fare, with no airline commission layered on top.
That net fare is then offered down the chain to agents like you, usually through a B2B portal or a WhatsApp/email broadcast. You don't see the airline's commission — you see a flat net price, and whatever you charge the customer above that is your earning. There's no fixed commission percentage handed to you the way published fares sometimes work; on a net fare you set the sell price, within the ceiling the market will bear.
The word "series" matters. The block is usually a series of departures — the same flight repeating weekly or on set dates across a season — not a one-off. That's what separates it from a casual bulk buy. Pilgrimage corridors, wedding-season sectors and youth/leisure traffic are classic series candidates because the demand is repeatable and roughly forecastable.
If you're newer to the trade and the difference between net, published and commissionable fares is still fuzzy, our wholesale air tickets guide breaks down the fare types in plain language.
Series vs GDS/published vs group fares
Three things get muddled constantly, so let's separate them. A published/GDS fare is the live, public fare you'd see on the airline site or a GDS — sold one seat at a time, often refundable depending on fare rule, no block commitment. A group fare is a negotiated rate for one set of passengers travelling together (typically 9–10+ on the same flight), quoted ad hoc, usually with a held PNR, a deposit and a names deadline. A series fare is pre-bought inventory the wholesaler already committed to, sliced and sold to many agents across repeating departures.
| Feature | Published / GDS | Group fare | Series / block fare |
|---|---|---|---|
| Who commits to the seats | Nobody until you book | Agent, per group | Wholesaler, in advance |
| Price level | Live market fare | Negotiated per request | Net (wholesale) fare |
| Refundable? | Depends on fare rule | Often partly, terms vary | Almost always no |
| Date / flight flexibility | Yes, repriced | Limited | Locked |
| Best for | Ad-hoc single PAX | One travelling group | Repeatable demand sectors |
The practical rule of thumb: reach for published when demand is uncertain or the passenger needs flexibility, quote a group fare when you have one defined group, and use a series fare when you're confident you can sell a predictable run of seats cheaper than the live fare will be on the day.
Who sells series fares in India
You rarely buy a series block straight from the airline. The seats flow through intermediaries:
- Consolidators / wholesalers: the firms that actually negotiate and hold the block with the airline. They carry the inventory risk and distribute net fares downward.
- B2B portals and aggregators: platforms that pull series, group and net fares from multiple suppliers into one login, so you're not chasing ten WhatsApp groups. FlightGPT Partner is one such portal.
- Sub-agent networks: larger agents who've blocked inventory and resell slices to smaller agents in their network.
- Airline trade desks: for some carriers, established agencies with volume can negotiate series directly — but that needs scale and usually an upfront commitment.
The further down the chain you sit, the thinner the margin and the more important it is to know who's actually holding the seats. When something goes wrong — a schedule change, a release dispute — you want a counterparty who can fix it, not a forwarded message three hops from the real supplier. It's also worth comparing what each LCC's own fare families allow, since series sits on top of these base products: see how IndiGo fare types, Akasa Air fare types, SpiceJet fare types and Air India Express fare types structure baggage and changes.
The economics: net fare plus your markup
The math is simple; the discipline is hard. You buy at the net fare, you sell at net plus markup, and the gap is your gross earning. The catch is that the net fare is fixed but the live fare moves. Here's the bet you're making:
- If live fares rise toward the date (peak weekend, festival, wedding rush), your blocked net fare looks cheap and you sell comfortably above it. This is the whole point.
- If live fares fall or demand softens, you're stuck holding non-refundable seats you committed to, and you may have to sell at or below your net just to recover cash.
That asymmetry is why series fares reward sectors you understand deeply. You're not just buying cheap seats — you're taking a view on where the fare will be weeks from now. Price your markup with that risk in mind, and don't blanket-block a sector you've never sold. We never quote a fixed margin number here because it genuinely varies by route, season, supplier and how aggressively you want to move volume — anyone promising a guaranteed percentage is selling you something. Run your own per-sector numbers and verify the net rate fresh each time.
The hard rules: refunds, locks, name changes and release deadlines
This is where agents get burned, so read it twice. Series fare terms are set upstream and passed down, and they're stricter than normal tickets:
- Non-refundable: assume the seat is gone the moment you confirm it. If your passenger cancels, that's your loss unless you can resell the seat to someone else before departure.
- Date- and flight-locked: the seat is tied to that exact flight and date. Date changes are usually not permitted, or only by cancelling and re-blocking at a new fare — effectively a fresh purchase.
- Name-submission deadlines: the airline needs final passenger names by a cut-off — commonly a few days before departure (often in the 48–72 hour range for domestic, earlier for international), but it varies by supplier and carrier. Miss it and seats can be released. Confirm the exact deadline in writing for every block.
- Name changes / corrections: minor spelling corrections for the same passenger are often allowed within a window, sometimes with a fee; transferring a seat to a completely different passenger may or may not be allowed and can carry a charge. Never assume — ask the supplier per block.
- When the PNR / ticket is issued: on many series products you hold a blocked seat without an issued ticket until names and payment are finalised before the deadline. Until it's ticketed, it isn't truly yours. Know exactly when issuance happens.
- Seat-block release deadlines: unsold seats in your block get released back by a set date so the wholesaler can resell them. Track this — both so you don't lose seats you wanted and so you understand your exposure on the ones you've committed to.
Get all of this in writing — not a verbal "haan ho jayega." The clearest portals surface the deadline and change terms on the booking screen so there's no ambiguity.
Common series routes in India
Series fares cluster where demand is high, repeatable and forecastable. The usual suspects in 2026:
- Metro to Tier-2 leisure and VFR sectors: Delhi/Mumbai/Bengaluru out to places like Srinagar, Goa, Leh, Dehradun, Patna, Guwahati and the North-East — strong seasonal peaks that suit blocked inventory.
- India to Dubai and the Gulf: heavy, year-round labour, VFR and leisure traffic from Kerala, Tamil Nadu, Telangana, UP and Punjab to DXB, SHJ, AUH, Doha and Muscat — a classic series corridor.
- Religious and Umrah travel: pilgrimage flows to Jeddah/Madinah and domestic religious circuits run on fixed, repeating departures that are made for series and fixed-departure structures.
- Wedding and event season: short-haul sectors around the wedding calendar where families book in clusters.
- LCC series: low-cost carriers on dense domestic and short-haul international routes are common series stock because the inventory turns predictably.
If your sell mostly runs on one or two corridors you know cold, those are exactly the ones to consider blocking. Browse live demand on the sectors you sell via our routes pages and the flight search to sanity-check where the live fare sits before you commit to a block.
Risks and how to mitigate them
Series fares concentrate risk into a few failure points. Know them, and price and structure around them:
- Consolidator / supplier default: the biggest one. If the wholesaler holding the block can't deliver — cashflow trouble, a dispute with the airline — your passengers can be stranded even though you paid. Mitigate by dealing with established suppliers, keeping exposure per supplier sensible, and preferring channels where payment and ticketing are traceable.
- No-show / unsold inventory: non-refundable seats you can't fill are a straight loss. Mitigate by blocking only what you're confident you'll sell, releasing surplus before the deadline where the terms allow, and not over-committing on a new sector.
- Schedule change or cancellation by the airline: times shift, flights get pulled. Your passenger's options then depend on the airline's policy and what the supplier negotiated. Mitigate by knowing the re-accommodation terms up front and keeping a fallback (alternate flight or refund path) in mind.
- Terms changing under you: deadlines and rules can be tightened. Mitigate by getting current terms in writing for every block, not relying on "how it worked last season."
None of this means avoid series fares — plenty of agents build a solid book on them. It means treat each block as a small inventory business with real downside, not free money.
GST and TCS basics for the trade
Tax treatment trips up a lot of agents, so here's the qualitative shape as of 2026 — and you must verify the current position with your CA and the official CBIC notifications, because these rules have moved recently.
GST on your air-ticket service. For an air travel agent, GST is broadly charged on the agent's service/commission, not on the full ticket value. The deemed-value method under the CGST Rules has historically valued the commission at a small percentage of the basic fare — commonly cited as 5% of basic fare for domestic and 10% for international — with 18% GST applied to that value (or to your actual service/convenience fee). The exact application depends on how you invoice; confirm with your accountant.
GST on tour packages. Following the September 2025 GST changes, tour packages (domestic and international) have been widely reported as moving to a 5% slab without input tax credit. If you bundle a series-fare ticket into a package, the package treatment can differ from selling the ticket alone — so know which you're doing.
TCS on overseas tour packages. Where a sale is an overseas tour package (not a bare air ticket), Tax Collected at Source can apply. As of Budget 2026, TCS on overseas tour packages is a flat 2% from 1 April 2026, collected on top of GST, with the earlier slab structure (a lower rate up to a per-person annual threshold and 20% above it) removed — so it now applies from the first rupee of the package.
Two honesty caveats: first, a standalone domestic or single air ticket is generally not an "overseas tour package," so don't apply TCS where it doesn't belong. Second, every number above has changed at least once recently — treat them as direction, not gospel, and confirm the live rate with CBIC and your CA before you invoice.
A practical checklist before you block series seats
Run through this every single time before money leaves your account:
- Confirm the net fare in writing for the exact flight, date and class — and re-confirm it's still valid before paying.
- Get the name-submission deadline and the seat-release deadline in writing, with dates, not "a few days before."
- Confirm refundability and date-change rules — assume non-refundable and locked unless told otherwise in writing.
- Ask exactly when the PNR is issued and ticketed, and what proof you'll get.
- Clarify name-change / correction policy and any fee for spelling fixes vs full passenger swaps.
- Check the supplier's track record and keep per-supplier exposure sensible.
- Sanity-check the live fare on the sector before committing — if the web fare is already near your net, the upside is thin.
- Sort your tax treatment up front — ticket vs package, GST basis, and whether TCS applies — so your invoice is clean.
- Have a resell or fallback plan for unsold seats before the release date.
If you can't get clean answers to the deadline, refundability and issuance questions, that's your signal to walk.
How FlightGPT Partner helps
The grind with series fares isn't the concept — it's the operational mess. Different suppliers, separate logins per airline, deadlines buried in WhatsApp threads, and no single place to see what you've actually committed to. That fragmentation is where agents lose seats and money.
FlightGPT Partner is FlightGPT's B2B portal that pulls series fares, group fares, fixed departures and wholesale/net fares from multiple suppliers and airlines into one login — so you're not maintaining a separate account per airline or chasing brokers across ten channels. It runs an agency wallet so you can transact against a balance, and it generates GST invoices, which keeps your accounting tidy when you're juggling ticket-level and package-level sales.
It's one strong option, not the only one — plenty of agents run a mix of direct consolidator relationships and a portal. The honest pitch is this: if your time is going into logins and deadline-chasing instead of selling, consolidating that into one screen is worth a serious look. Compare it against your current setup using our rundown of the best B2B flight booking portals, and read up on fixed departures if your demand leans toward pilgrimage and group circuits.
Frequently asked questions
What's the difference between a series fare and a group fare?
A series fare is inventory a wholesaler pre-buys in bulk across a run of repeating departures and resells to many agents at a net rate. A group fare is a rate negotiated ad hoc for one specific set of passengers travelling together, usually with a held PNR, a deposit and a names deadline. Series is repeatable, pre-committed stock; group is a one-off quote for a defined group.
Are series fares refundable?
Almost never. Treat a series-fare seat as non-refundable the moment you confirm it. If your passenger cancels, your only realistic recovery is reselling that seat to another buyer before departure. Always confirm the exact cancellation terms in writing for each block — don't assume.
Can I change the passenger name or travel date on a series ticket?
Date changes are usually not allowed, or only by cancelling and re-blocking at a fresh fare. Minor name spelling corrections for the same passenger are often permitted within a window, sometimes with a fee, while swapping in a completely different passenger may or may not be allowed and can carry a charge. The terms vary by supplier and airline, so confirm per block before you commit.
How do I make money on a series fare?
You buy at the net (wholesale) fare and sell at net plus your markup; the gap is your earning. The bet is that the live fare will rise toward the travel date so your blocked seats look cheap. If demand softens or live fares fall, you can be stuck with non-refundable seats. There's no fixed commission percentage — you set the sell price, and margins genuinely vary by route, season and supplier, so run your own numbers each time.
Do I have to charge GST and TCS on series-fare tickets?
It depends on what you're actually selling. For a standalone air ticket, GST is broadly on your service/commission rather than the full fare. If you bundle the ticket into a tour package, package GST rules apply, and an overseas tour package can also attract TCS — a flat 2% from 1 April 2026 under Budget 2026, after the earlier threshold slabs were removed. A bare domestic ticket is generally not an overseas tour package, so don't apply TCS where it doesn't belong. These rules changed recently — confirm the current position with CBIC notifications and your CA before invoicing.
What's the biggest risk with series fares, and how do I reduce it?
Supplier or consolidator default is the worst case — if the firm holding the block can't deliver, your passengers can be stranded even though you paid. Reduce it by dealing with established suppliers, keeping per-supplier exposure sensible, preferring channels where payment and ticketing are traceable, and only blocking inventory you're confident you can sell. Non-refundable unsold seats are the second risk, so release surplus before the deadline where the terms allow.