AirHelp vs AirAdvisor: which is the best flight compensation company?

Flights through Heathrow, Gatwick, Manchester and dozens of other UK airports get delayed, cancelled, or overbooked with dispiriting regularity. Under UK 261, a good number of affected passengers are entitled to compensation of up to £520 per person. Most never claim it. Airlines tend to respond with boilerplate letters citing "extraordinary circumstances", sit on cases for months, or simply bank on the claimant losing patience.

Flight delay compensation services exist to shift those odds. The passenger hands over the paperwork, a specialist team pursues the airline, and no fee is charged unless the claim succeeds. In principle, it is that simple. In practice, the choice of provider matters rather more than one might expect.

AirHelp and AirAdvisor are two of the better-known names in this area. Both operate on a no-win, no-fee basis and handle claims under UK 261 and EC 261. The similarities are largely superficial. AirHelp has been in operation for over thirteen years, has handled claims for more than 28 million passengers, and holds upwards of 234,000 Trustpilot reviews. Its claims engine is AI-driven; its legal teams work across five regulatory frameworks on multiple continents. AirAdvisor, founded in 2017, offers a perfectly legitimate service, though one built on a considerably smaller foundation.

This guide sets the two side by side on fees, legal capability, technology, trustworthiness, and the extras that sit beyond the claim itself. The aim is to make the stronger option for a given disruption rather easier to identify.

Before examining each area in detail, here is a headline summary of what the two delayed flight compensation companies offer UK travellers.

Note: AirAdvisor collects feedback across several platforms and reports roughly 30,000 reviews in total. The figures above reflect a like-for-like Trustpilot comparison.

The fee gap is real at first glance: AirAdvisor's 30% base rate sits five percentage points below AirHelp's 35%. That headline number, however, only captures the simplest scenario. Once a claim requires legal escalation, both companies cap their total fee at 50%, and AirHelp+ members pay no commission at all. The sections below unpack exactly how those numbers play out in practice.

UK 261 covers flights departing from a UK airport and flights arriving at one on a UK-licensed carrier. Where a qualifying disruption occurs, passengers can claim up to £520 each. The most common grounds are:

• The flight arrived three or more hours late at its final destination

• A cancellation, with fewer than 14 days' notice given

• Denied boarding, typically because the airline oversold seats

UK Regulation 261 was modelled on European Regulation EC 261 and, in practice, the two work in very similar ways, with comparable compensation amounts: up to a maximum of £520 under the British regulation, and €600 under European law. What differs is the flights to which they apply. For instance, a delayed flight departing from Barcelona (an EU airport) is covered by EC 261, whereas the same flight departing from Gatwick is subject to UK 261.

The law itself is not especially complicated. Enforcing it is another matter. Airlines treat claims as a cost to be minimised, and the tactics are well rehearsed: automated rejection letters, months of silence, defences citing "extraordinary circumstances" that turn out to be nothing of the sort. It is precisely this gap between entitlement and reality that flight delay compensation services are designed to close.

The most visible difference between AirHelp and AirAdvisor is the base service fee. What a passenger actually pays, though, can look quite different from either figure. Fees change if the airline refuses to settle and the case goes to court. And in AirHelp's case, there is a way to bring the fee down to nothing.

Standard fees

AirHelp charges a flat 35% of any successful claim, VAT included. No retrospective adjustments, no supplementary charges. AirAdvisor's standard rate is 30%, also inclusive of VAT. On a straightforward claim that resolves without legal involvement, that five-point difference works in AirAdvisor's favour, but it disappears when claims need legal escalation.

When the airline pushes back

A good number of carriers dig in, particularly on higher-value UK 261 claims, and the case ends up in court. At that point both services apply a legal action surcharge:

• AirHelp adds a 15% legal action surcharge, bringing the maximum total to 50%

• AirAdvisor adds a 20% legal action surcharge, also bringing the maximum total to 50%

The maximum total is the same either way, 50%, but AirHelp takes a slightly smaller share on contested claims. These are also, not coincidentally, the claims where legal experience and established relationships with airline legal departments tend to decide the outcome.

AirHelp+: reducing the fee to zero

There is a third option that changes the arithmetic entirely. AirHelp+ membership drops the commission to 0% on covered trips. For a UK traveller on the basic plan (£34.99/year, covering three trips), a single successful claim worth £520 would save over £180 in service fees alone – more than five times the cost of the membership.

AirAdvisor offers no equivalent subscription. There is no route to a lower fee, regardless of how frequently you fly or how loyal a customer you are.

Fees matter less than they might appear to if the claim never succeeds. In this industry, outcomes depend heavily on the volume of cases a company has handled and the legal precedent it has built up over time. The gap between the two providers is difficult to ignore.

AirHelp: thirteen years of accumulated leverage

AirHelp has been operating since 2013. In that time, the company has assisted over 28 million passengers and processed more than 3 million claims worldwide. The practical effect of that volume is significant.

Resolved claims feed an AI system that learns to identify viable cases more accurately, and years of direct negotiation with hundreds of carriers have given AirHelp a degree of institutional recognition that newer competitors cannot shortcut. Airlines know the name; more to the point, they know the legal team behind it, and cases tend to move faster as a result. Over a decade of litigation across multiple jurisdictions has also produced a body of case law that would take years to replicate from scratch.

For UK passengers, this is worth dwelling on. Airlines operating out of Heathrow, Gatwick, and other major hubs frequently contest high-value UK 261 claims. A flight delay compensation service with substantial cross-border legal experience is a genuine advantage in those disputes.

AirAdvisor: a newer operation

AirAdvisor was founded in 2017 and handles a considerably smaller volume of claims. That is no reflection on the quality of its service, but it does mean less data to draw on, less negotiating history with airlines, and fewer contested cases to point to when an unusual situation arises.

Both companies hold an Excellent rating of 4.5 out of 5 on Trustpilot. The numbers underneath that score tell a rather different story.

AirHelp has more than 238,000 reviews. At that scale, the odd unhappy customer makes no statistical difference. It also means that most types of disruption, from a routine domestic delay at Birmingham to a multi-carrier cancellation across three countries, will have come up before. That depth of documented experience is hard to argue with.

AirAdvisor holds around 2,200 Trustpilot reviews at a comparable rating. The company also collects feedback on other platforms, notably Reviews.io, where it reports roughly 30,000 reviews in total. Even taking that broader figure into account, the difference in verified volume is stark.

The reason this matters is practical. The range of situations a company has actually dealt with is the closest thing to a predictor of how well it will handle the next one. Two hundred and thirty-one thousand data points carry rather more weight than two thousand.

Both AirHelp and AirAdvisor will file your compensation claim when a flight goes wrong. The difference is that one of them stops there.

AirAdvisor: built to react

AirAdvisor is a no-win, no-fee compensation service. You submit your disrupted flight, the company pursues the airline, and you pay a percentage when the money comes through. That is the full scope of the relationship. There are no tools to help you before a disruption occurs, no support while you are standing in a crowded terminal at Stansted at six in the morning, and nothing beyond the formal claims process itself.

AirHelp+: protection that starts before the disruption

AirHelp also operates on a no-win, no-fee basis for standard claims, but it has built an entire layer of proactive protection around that core service. AirHelp+ (from £34.99/year on the Smart plan) reframes the relationship from a reactive claims handler into something closer to a travel safety net:

• 0% commission on compensation claims for covered trips – you keep the full £520 if that is what the airline owes you

• Fast insurance payouts – €100 transferred within days for delays over three hours, €100 for lost or delayed luggage, €200 for missed connections

• Access to 1,300+ airport lounges worldwide when your flight is delayed by more than one hour or cancelled

• Free Fast Track at security at participating airports

• Real-time flight tracking with proactive disruption alerts sent straight to your phone

• Up to £520 in airline compensation per eligible disruption, handled from start to finish

• 24/7 support, travel discounts, and deals on eSIMs and car hire

Over 12 million passengers have chosen to fly with AirHelp+ coverage.

Why the distinction matters

The practical difference becomes obvious on the day things go wrong. Imagine your 7 AM easyJet flight from Gatwick to Malaga is cancelled while you are already through security. With AirAdvisor, you have a website URL and a claims form to fill in later. With AirHelp+, you have a lounge voucher so you can sit somewhere comfortable while you wait, a €100 insurance payout heading to your account, a compensation claim being assembled automatically, and a support team you can reach immediately.

AirAdvisor handles the aftermath. AirHelp is designed to be there throughout.

When a flight is disrupted, navigating a desktop claims process on a phone browser is nobody's idea of a good time. AirHelp has a free mobile app, available in eight languages and downloaded over 1 million times, that puts the full service on the passenger's phone.

The app allows you to:

• Check whether you are owed compensation in under a minute, for any flight in the past three years

• Track flights in real time and receive push alerts for delays, cancellations, and gate changes

• File and monitor claims directly from your phone, from submission through to payout

• Sync your email or calendar so the app detects upcoming flights automatically – and flags past flights that may qualify for compensation you never claimed

That last feature is worth pausing on. The app scans travel history going back three years under UK 261, which means it can surface claims a passenger never knew existed. Someone flying out of Manchester or Edinburgh a few times a year could find themselves sitting on hundreds of pounds in unclaimed compensation. Without the scan, that money simply stays with the airline.

AirAdvisor doesn't offer a dedicated mobile app. Its service runs entirely through a web browser, which is adequate at a desk but rather less practical when standing in a queue at Heathrow T5 trying to deal with a cancelled connection.

Not every flight from a UK airport stays within UK regulatory territory. Codeshare partners, connecting hubs, holiday routes through non-EU countries: it does not take particularly exotic travel plans before a different set of passenger rights rules comes into play. A compensation provider needs to be able to handle that complexity on the claimant's behalf.

AirHelp: five frameworks, one process

AirHelp pursues claims under five separate passenger rights regulations:

• UK 261, for flights departing from UK airports or arriving in the UK on a UK-licensed carrier

• EC 261, for EU departures or arrivals on an EU carrier

• SHY Passenger in Turkey

• ANAC 400 in Brazil

• The Saudi passenger rights regulation

Thirteen years of cross-border casework sit behind that list. When a disruption hits a route that straddles jurisdictions, a London to São Paulo routing via Lisbon, say, AirHelp has dealt with that kind of overlap before and knows which regulation governs which leg.

AirAdvisor: primarily European

AirAdvisor covers UK 261 and EC 261. For passengers flying straightforward UK-to-EU routes, that is likely sufficient. The limitation shows once a journey passes through Brazil, Turkey, or Saudi Arabia, where AirAdvisor's framework simply does not reach.

Why this matters even for occasional travellers

It is not necessary to be a frequent intercontinental flyer for this to be relevant. Codeshare agreements and connecting hubs outside Europe can pull an apparently simple itinerary into non-UK regulatory territory without the passenger realising it.

Start with fees, because that is usually where people start. AirAdvisor's base rate of 30% is lower than AirHelp's 35%, and on a straightforward claim that difference is real. If the airline disputes the claim, both services can reach 50% in total - but AirHelp's legal surcharge is 15%, AirAdvisor's is 20%. For frequent flyers, AirHelp+ (from £34.99 a year) cuts the fee to zero. One successful claim at £520 covers several years of membership.

Legal experience is harder to price. AirHelp has been filing claims for over a decade, across multiple jurisdictions, against most of the airlines UK passengers actually fly with. That history shows up when a case becomes contested – which is when it matters.

On Trustpilot, both sit at 4.5 out of 5. AirHelp's rating comes from around 238,000 reviews, while AirAdvisor's from around 2,200. Draw your own conclusions.

AirHelp handles claims under five regulatory frameworks; AirAdvisor covers UK 261 and EC 261. For most UK passengers that is sufficient. For anyone who flies beyond Europe with any regularity, it is worth knowing the difference before you need to.

AirAdvisor files your claim. AirHelp also tracks your flights, alerts you to disruptions, scans for eligibility automatically, and – on the Plus plan – adds lounge access, instant insurance payouts and Fast Track at security.

AirAdvisor is a reasonable choice for a one-off claim on a simple case. The comparison does not stay that close for long.

AirAdvisor's 30% rate is the lower number, and on a single uncontested claim, that is a genuine advantage. The question is what happens when your case is not straightforward, or when you fly regularly enough that the fee structure starts to matter.

Here is where AirHelp stands:

• 35% service fee, VAT included, no hidden charges

• 0% for AirHelp+ members (from £34.99/year)

• 15% legal surcharge if the airline disputes the claim - AirAdvisor charges 20%

• Around 235,000 Trustpilot reviews against AirAdvisor's 2,200

• 28 million+ passengers over 13 years

• Five regulatory frameworks: UK 261, EC 261, Brazil, Turkey, Saudi Arabia

• AirHelp+ includes 1,300+ lounges, Fast Track, instant insurance payouts, and a free flight tracking app

Legal experience, global coverage, product depth, and the option to eliminate fees altogether through membership, are what separate a one-off claims service from something built for the long run. For most UK travellers, AirHelp is the stronger choice.

Check your flight now: you may have a claim you did not know about.