The verdict in three sentences
For a London travel management company handling 1,000 to 5,000 corporate bookings a year, a specialist SaaS platform connected to a GDS is still the safest default. Once your edge depends on client specific travel policies, approval chains and bespoke reporting for finance teams, a custom web application layered on top of that platform usually pays back within two to three years. Rank your options on three year total cost, data portability and how well each one handles ATOL and policy compliance, because the monthly headline price hides most of the cost.
How the solution types rank in 2026
We rank categories of providers and well known public software only, using stable criteria. Figures are 2026 estimates for the London market and should be confirmed by quotes.
| Rank | Solution type | Entry cost | Time to go live | Data portability | Best fit |
|---|---|---|---|---|---|
| 1 | Specialist travel agency SaaS (mid office) | GBP 50 to 220 per user per month | 3 to 8 weeks | Medium, exports often partial | 5 to 25 consultants, standard corporate travel |
| 2 | Custom web app on top of your GDS | GBP 13,000 to 52,000 | 3 to 6 months | High, you own code and data | Policy heavy clients, bespoke reporting |
| 3 | Configured ERP (Odoo, Sage) | GBP 7,000 to 26,000 plus licences | 2 to 5 months | Medium to high | Agencies with events and accounting in one place |
| 4 | CRM plus spreadsheets (HubSpot, Google Sheets) | Monthly subscription, public pricing varies by plan | 1 to 3 weeks | High | Under 500 bookings a year |
| 5 | Solo freelance developer | GBP 7,000 to 20,000 | 2 to 6 months | Low without documentation | Narrow scope, continuity risk |
Specialist SaaS wins for most firms because GDS integration (Amadeus, Sabre or Travelport), invoicing and supplier records come ready made. It loses ground when each corporate client has its own travel policy: cabin class by seniority, hotel caps per city, pre trip approval by cost centre. Encoding those rules in generic fields means manual checks, and manual checks are where out of policy spend slips through.
The custom option ranks second. Kolonell sits in this category, building medium complexity web applications for 2,500,000 to 4,000,000 FCFA (about EUR 3,800 to 6,100) in 2 to 3 months, with maintenance from EUR 38 to 115 a month, working remotely from Dakar with regular video check ins.
Three year total cost for 12 consultants and 2,400 bookings
Assumptions: SaaS at GBP 140 per user per month, ERP licences at GBP 35 per user per month, custom build by a UK studio at mid range.
| Cost line | Specialist SaaS | Configured ERP | Custom app plus GDS |
|---|---|---|---|
| Setup and configuration | GBP 3,000 | GBP 14,000 | GBP 30,000 |
| Subscriptions or licences, 36 months | GBP 60,480 | GBP 15,120 | GBP 0 |
| Hosting and maintenance, 36 months | Included | GBP 4,500 | GBP 10,800 |
| GDS and hotel API connections | GBP 2,500 | GBP 7,000 | GBP 9,000 |
| Data migration | GBP 1,500 | GBP 3,000 | GBP 3,000 |
| Three year total | GBP 67,480 | GBP 43,620 | GBP 52,800 |
At 12 seats, per user pricing makes SaaS the most expensive line over three years. Below 6 seats the order flips and SaaS becomes the cheapest option by a wide margin.
Compliance and integration checks for London
| Requirement | Why it matters in the UK | What to ask the vendor |
|---|---|---|
| ATOL protection records | CAA rules apply to flight inclusive packages | Does the system issue ATOL certificates automatically? |
| Package Travel Regulations 2018 | Linked travel arrangements trigger extra duties | Can it flag packages versus single bookings? |
| Corporate travel policy engine | Out of policy spend is a key client complaint | Can each client have its own rules and approvers? |
| UK GDPR | Passport and travel data are personal data | Where is data hosted and for how long? |
| Duty of care tracking | Clients must locate travellers during incidents | Is there a live traveller map and alerting? |
| Full data export | Protects you if you switch provider | Can I export bookings and invoices as CSV or SQL? |
Mini case study
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Illustrative example: Priya, managing director of a corporate travel management company in Clerkenwell, 12 consultants, 2,400 bookings a year for 30 corporate clients. Policy checks are done by hand and take about 12 minutes per booking.
An automated policy engine cuts that to 3 minutes, saving 9 minutes on 2,400 bookings, or 360 hours a year. At a loaded cost of GBP 32 an hour, that is GBP 11,520 a year, GBP 34,560 over three years. Priya keeps her GDS based mid office and commissions a custom policy and reporting layer for GBP 22,000, which pays back in just under two years while giving her a client portal competitors cannot copy.
FAQ
What is the best software for a small London travel agency?
Under 500 bookings a year, a CRM with booking templates is often enough. Between 500 and 5,000 bookings, a specialist SaaS at roughly GBP 50 to 220 per user per month gives the best balance of cost and speed.
How much does custom travel agency software cost in London?
UK studios typically quote GBP 13,000 to 52,000 depending on modules and integrations. A focused policy engine and client portal can start around GBP 15,000 and ship in 3 to 4 months.
Do I need ATOL features in my software?
If you sell flight inclusive packages, yes: the CAA expects ATOL certificates for each protected booking. Automating them avoids errors on what can be hundreds of certificates a year.
Can custom software connect to a GDS?
Yes, through the GDS provider's APIs, but expect GBP 5,000 to 9,000 of development per connection plus the provider's own transaction fees. Many firms keep their existing mid office and build only the missing layer.
How do I avoid vendor lock in?
Write a quarterly full data export into the contract and test it during the 14 or 30 day trial. Check that booking history, client profiles and invoices all come out in an open format.
Let's scope your project. Send us your booking volume, client policies and current tools, and we will price a custom or hybrid scope with an indicative budget and a 2 to 3 month timeline. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
