A hotel and travel booking app costs between $25,000 and $90,000, and the range is wider than most categories for one reason: almost none of the cost is in the app your customer sees.
Booking apps are integration projects wearing an app's clothing. The screens — search, results, a room, a payment — are a few weeks of work. What consumes the budget is connecting to the systems that actually hold the inventory, and making sure two people never book the last room at the same moment.
This guide separates the visible build from the integration work underneath it, because quotes that ignore the second half are the ones that double later.
Which kind of booking app are you building?
The single biggest cost driver is where your inventory comes from.
| Model | What it means | Cost |
|---|---|---|
| Single property | One hotel, its own rooms, its own calendar | $25,000 – $45,000 |
| Small chain | Several properties under one brand and one back office | $40,000 – $70,000 |
| Aggregator / OTA | Inventory pulled from suppliers you do not control | $70,000 – $150,000+ |
| Tours and activities | Fixed departures, capacity per slot, guides | $30,000 – $60,000 |
A single hotel building its own app is a manageable project. An aggregator competing with Booking.com is a different business entirely, and the app is the cheapest part of it.
Be honest about which one you are. Most clients describe an aggregator and budget for a single property.
Cost table — 2026
| Component | Cost | Notes |
|---|---|---|
| Search and results | $3,000 – $7,000 | Dates, guests, filters, map view |
| Property and room detail | $2,500 – $5,000 | Gallery, amenities, policies, reviews |
| Availability and pricing engine | $6,000 – $18,000 | The core; see below |
| Booking and payment | $4,000 – $9,000 | Hold, confirm, cancel, refund |
| User accounts and trip history | $2,500 – $5,000 | Saved travellers, past bookings |
| Admin dashboard | $5,000 – $12,000 | Rates, inventory, bookings, reports |
| Channel manager integration | $5,000 – $15,000 | Per system |
| Payment gateway | $1,500 – $4,000 | Per gateway |
| Notifications | $2,000 – $5,000 | Confirmation, reminders, changes |
For how these components add up in app projects generally, see our mobile app development cost guide.
Where the money actually goes
The availability engine
This is the part that separates a booking app from a catalogue, and it is where inexperienced quotes go wrong.
Availability is not a number you store. It is a calculation over a date range, and it has to account for minimum stay, maximum stay, closed-to-arrival days, seasonal rates, and rooms held by carts that have not checked out yet. A search for "3 nights, 2 adults, next weekend" runs that calculation across every room type before it can show a price.
Then there is the problem that defines the category: two customers reaching the last room at the same time. Handling that correctly means holding inventory during checkout, releasing it if payment fails, and never confirming a booking the property cannot honour. Getting it wrong produces overbookings, which cost money and reputation in a way a broken feature never does.
Budget $6,000 to $18,000 here, and treat a quote that prices it at $2,000 as evidence the vendor has not built one before.
Channel manager and PMS integration
A hotel that sells on Booking.com, Expedia, and its own app cannot maintain three separate calendars. It runs a channel manager — SiteMinder, Cloudbeds, and similar — that keeps them synchronised, and your app has to speak to it.
This is per-system work. Each has its own API, its own rate structures, its own way of expressing restrictions. Budget $5,000 to $15,000 for the first integration and less for each additional one.
For flights or multi-supplier hotel inventory, you are looking at GDS access — Amadeus, Sabre, Travelport. That involves contracts, certification, and per-transaction fees, and it is a commercial process as much as a technical one. Start those conversations before you build, because they can take months and they shape what the app can offer.
Payments and the money flow
Travel payments are not retail payments. You need to decide, before development starts:
- Do you charge at booking, at check-in, or both?
- Who holds the money between booking and stay — you or the property?
- What happens on cancellation, and who absorbs the gateway fee?
- Do you support instalments for higher-value bookings?
If you take payment and remit to properties later, you are handling other people's money, which carries licensing implications in most Gulf jurisdictions. Confirm your position before you design the flow. Our guide to payment gateways in the Gulf covers the available options.
Cancellation and modification
Every travel product has cancellation rules, and they are more intricate than they look: free until 48 hours, then one night, then non-refundable — varying by rate plan, by season, and by property.
Building this properly costs $3,000 to $8,000. Skipping it means your support team processes cancellations by hand, which works until volume arrives.
What most quotes leave out
Content. Photographs, descriptions, amenity lists, and policies for every property. For a single hotel this is a weekend. For fifty properties it is a project, and stale content is the most common complaint in travel app reviews.
Multi-currency and multi-language. Regional travel apps need Arabic and English at minimum, and a Gulf traveller booking in Turkey expects to see prices in SAR or AED. Currency conversion needs a rate source and a decision about who absorbs fluctuation. See our Arabic localization guide for the language side.
Hijri dates. A Gulf-facing app that cannot display or accept Hijri dates will frustrate a real portion of its users, particularly around Ramadan and Hajj booking. Covered in Working with Hijri Dates.
Seasonal load. Traffic is not flat. Hajj, Umrah, Eid, and school holidays produce spikes many times the baseline. Infrastructure that handles a normal Tuesday will fail on the morning Umrah slots open. Budget for load testing and headroom.
Ongoing costs
| Item | Annual |
|---|---|
| Maintenance | 15 – 20% of build |
| Channel manager subscription | $1,200 – $6,000 |
| Payment processing | 2 – 3% of volume |
| Hosting with seasonal headroom | $2,400 – $12,000 |
| Content updates | Ongoing staff time |
| Map and geocoding APIs | $600 – $3,600 |
Payment processing is the item that scales with success rather than sitting flat. At 2.5% on $500,000 of annual bookings, that is $12,500 a year — larger than your hosting and maintenance combined, and it belongs in the business model rather than the IT budget.
Is it worth building?
For a single property, the honest comparison is against the commission you already pay. If you take 2,000 bookings a year at an average of 800 SAR and pay 15% to OTAs, that is 240,000 SAR annually. Shifting even a quarter of those to a direct app saves 60,000 SAR a year against a build in the 130,000–170,000 SAR range. It pays back in around two to three years, and faster if the app raises repeat stays.
But there is a caveat worth stating plainly: guests who book direct usually already know you. An app will not bring you new guests the way an OTA listing does. It converts existing demand more cheaply. If your occupancy depends on discovery through OTAs, the app complements that channel rather than replacing it.
For an aggregator, the app is not the question. Supplier contracts, inventory access, and customer acquisition cost are the business, and they will dwarf the development budget. Build the commercial side first.
Read also
- How Much Does an App Cost? — the pillar guide
- How Much Does a Clinic Booking App Cost? — appointment booking in a regulated setting
- Payment Gateways in the Gulf — Mada, Apple Pay, instalments
- Working with Hijri Dates — calendar handling for Gulf users
- Arabic Localization Guide — bilingual travel content
- MVP or Full Product? — scoping a first release
Frequently asked questions
How much does a hotel booking app cost?
For a single property, $25,000 to $45,000. For a small chain, $40,000 to $70,000. An aggregator pulling inventory from multiple suppliers starts around $70,000 and rises quickly with the number of integrations.
Why is a booking app more expensive than a shopping app?
Because availability is calculated rather than stored, and because two people must never book the same room. That logic — holds, releases, restrictions, and synchronisation with the systems that own the inventory — is most of the cost, and none of it is visible on screen.
Do I need to integrate with a channel manager?
If you sell on Booking.com or Expedia as well as your own app, yes — otherwise you maintain calendars by hand and will eventually overbook. If your app is your only sales channel, you can start without one and add it later.
How long does it take to build?
Four to seven months for a single property, longer where GDS or multi-supplier integration is involved. The integrations, not the app screens, set the timeline, and supplier contracts can take months on their own.
Can I build it without a GDS connection?
Yes, if you sell your own inventory. GDS access is needed to sell flights or third-party hotel inventory, and it brings contracts, certification, and per-transaction fees. Most single-property apps never need it.
What about commission — should I still list on OTAs?
Usually yes. OTAs bring discovery your app cannot; the app lowers your cost on guests who already know you. Treat the app as a way to reduce blended commission, not to eliminate it.
How do I handle cancellations and refunds?
Encode the rules in the booking engine rather than handling them manually: free until a cutoff, partial after it, non-refundable rates priced lower. Budget $3,000 to $8,000 for that logic and decide in advance who absorbs the gateway fee on a refund.
Conclusion
A travel booking app costs $25,000 to $90,000, and the number is set almost entirely by where your inventory lives and how many systems must agree about it. A single hotel selling its own rooms is a contained project with a clear payback against OTA commission. An aggregator is a business whose app is the least of its problems.
Before commissioning anything, get two things in writing from your vendor: how availability is held during checkout, and which channel manager or PMS they have integrated with before. Those two answers predict the outcome of the project better than the total at the bottom of the quote.