A travel app works when it does one moment of a trip better than the map and booking apps people already have. Pick that moment first: planning, booking, or getting around on the day. Then find out where your data comes from. Most travel apps don’t own flights or rooms. They connect to suppliers through APIs, so the first version is mostly search, a clear booking flow and a plan for when trips change. With us, a first version typically costs $5,000 to $15,000 and takes 2 to 4 weeks, plus store review.
A note on our experience. We haven’t built a flight or hotel booking app. We have built the parts a travel app is made of: booking across many countries, maps with thousands of points, and chat that translates itself. The examples below come from those projects.
| Moment | What the app does | Where the data comes from | The hard part |
|---|---|---|---|
| Planning | Ideas, saved places, a day-by-day plan | Maps and places APIs, your own guides | Keeping content fresh |
| Booking | Search and pay for flights, stays, tours or desks | Supplier APIs or your own partners | Prices and availability change between search and payment |
| On the trip | Tickets, directions, translation, changes | Saved bookings, maps, push alerts | Weak or expensive mobile data abroad |
| After the trip | Reviews, expenses, photos | Your users | Getting people to open the app again before the next trip |
Choose one row for version one. An app that tries to cover all four ends up as a weaker copy of apps people already use.
Don’t count on a fast-growing market to carry the app, either. UN Tourism counted about 690 million international tourist arrivals in the first half of 2026, only 0.4% more than a year earlier. Your users will come from apps they already use, so the moment you pick has to be clearly better.
Many travel apps get flights and hotel rooms through aggregators instead of signing a deal with each airline or hotel. For example, Duffel’s documentation covers a Flights API and a Stays API, each with a guide to searching and booking. Other providers sell similar access. Compare what each one covers in your markets, how it charges, and what happens to a booking after payment, when a flight moves or a guest cancels.
Aggregators charge per booking and sometimes per search, so read the price list before you set your own margin. Duffel’s pricing page, for example, lists $3.00 per confirmed flight order, 1% of the order value for its managed content, $2.00 per paid extra such as a bag, and $0.005 for each search beyond a search-to-book ratio of 1,500 to 1. Work out what those fees leave you on your cheapest ticket before you set your own prices.
If you sell your own inventory, such as tours, rooms or workspaces, the data comes from partners and the work moves to onboarding them. FlyDesk, a coworking marketplace with a Hong Kong-based product owner, lists 577 offers in 26 countries from 44 partners, including WeWork. Its offers already lived on a WordPress website, so we built the app’s backend to stay in sync with that site.
Maps come from Google Maps, Mapbox and similar services. FlyDesk started on Google Maps and planned a move to Mapbox for wider coverage. Hundreds of places on one screen get messy fast: on LEV, a map app for dog owners with 13,300+ pins, we built filtering and clustering to keep the map readable.
A checklist for the first release of a booking or trip app:
Leave for later: social trip planning, chatbots, augmented reality and anything that needs a partner deal you don’t have yet.
Bookings for real-world services are paid outside the stores’ own billing. Apple’s guideline 3.1.3(e) says physical goods and services used outside the app must be paid with other methods, such as Apple Pay or a card. Google Play’s payments policy lists airfare and transportation among the physical services where Google Play’s billing must not be used.
Digital features are different. If you sell a premium plan that unlocks features in the app, such as offline guides or a smarter planner, Apple requires in-app purchase for it (guideline 3.1.1). An app that sells both needs two checkouts: card payments for bookings and in-app purchase for the plan. Decide this early, because it changes your margins and your checkout screens.
The rules also differ by country. Apple’s current guidelines allow apps on the United States storefront to include buttons or links that send people to buy outside in-app purchase (3.1.1(a)). In every other storefront they still don’t.
Travellers lose signal in airports, on trains and abroad, where mobile data can be expensive. Save everything the user needs for the next few days on the phone: bookings, tickets, addresses and the map area around them. Sync changes when the connection comes back, and show clearly when the data on screen might be out of date.
A travel app talks to people in many languages. Translate the interface for your largest markets first. If users message hosts or guides, chat translation helps more than a translated menu. In Kosmo, a dating app we built, chat messages are translated automatically into the app’s language from any other language (Kosmo case study). The same feature fits a guest writing to a host in another country.
Accessibility is a legal question in the EU. If you sell air, bus, rail or ferry travel to consumers there, the European Commission lists services related to passenger transport among those the European Accessibility Act covers, and the Act has applied since 28 June 2025, according to AccessibleEU. Plan for it from the first screens, and ask a lawyer whether your business is covered.
FlyDesk is Airbnb for coworking spaces: people and teams find and book a desk or a meeting room wherever they are. We designed and built its app for iPhone and Android in React Native. It has a map, two search modes (desk or meeting room), tag filters, booking and payment in the app, check-in from the app, an NFC scanner that tracks location automatically, and sign-in with Apple ID, Facebook, Google, Office365, LinkedIn or email. The FlyDesk case study shows the screens.
If your travel app lets hosts, guides or partners list their own offers, you’re building a marketplace, with supply, payouts and cancellations to handle. We cover that side in how to build a travel marketplace.
A first version of a travel app typically costs $5,000 to $15,000 with us and takes 2 to 4 weeks, plus store review. One React Native or Flutter app covers iPhone and Android, and after launch the work continues at $39 to $55 an hour. Our mobile app development page lists what’s included.
If the riskiest part is the supplier API, test it before the build. Our 1-week discovery sprint costs a fixed $3,000 and includes a 1-day test of the riskiest technical question, a clickable prototype of the main screens and a fixed price for the build. The $3,000 counts toward the build if you build with us.
Before that, you can estimate your travel app’s cost and timeline on your own in about four minutes. The estimate turns your brief into user stories, and you confirm which ones are in scope. We check the hours the AI suggests against what our team actually books on finished projects, then multiply by our published rate of $39-55 an hour. Every hour in the budget traces back to a story you kept, so you can drop the trip planner or the reviews and see the price change. It’s a planning range, not a fixed quote.
With us, a first version typically costs $5,000 to $15,000 and takes 2 to 4 weeks, plus store review. The price grows with the number of suppliers you connect, the countries and languages you support and how much has to work offline.
Usually not for version one. Aggregators sell API access to flights and stays, for example Duffel’s Flights and Stays APIs. You need your own partner deals when you sell inventory nobody else lists, such as local tours or workspaces.
Yes. Apple’s guideline 3.1.3(e) says physical goods and services used outside the app must be paid by other methods, such as Apple Pay or a card, and Google Play’s billing must not be used for airfare or transportation. In-app purchase applies to digital features you unlock inside the app.
The trip part should. Save bookings, tickets, addresses and nearby map areas on the phone, because travellers often lose signal or switch off mobile data abroad.
Search with a few filters, a booking screen with the full price, sign-in, a trip screen that works offline, push alerts for changes, a way to reach support and an admin panel for your team.
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