Is there a good app for find cheap flight deals?
Too Expensive: 17 apps already serve this, and 7 data points mined from real user reviews show where they fall short. The job is solved but priced beyond a segment. Undercut with a cheaper tier.
Data refreshed July 20, 2026 · scores recompute weekly as new reviews are mined, so re-check before you build.
What users complain about
The most common complaints behind apps that try to find cheap flight deals, mined and clustered from real reviews:
| Complaint area | Type | Mentions | What a user said |
|---|---|---|---|
| flights cheaper on other sites | price | 1 | Other sites have the same flight cheaper |
| no longer surfaces best flight deals | reliability | 1 | This app no longer collects the best deals in flights. There are other search apps that is now better |
| app prices cheaper than actual airline price | price | 1 | When I try to compare prices on Kayak, it is cheaper than the actual price on the airlines |
| recommended flight too expensive | price | 1 | The flight is recommended is so expensive |
| cannot compare flight prices by day | missing-feature | 1 | making it difficult to compare price flights by day |
| recommended flights not as cheap as expected | price | 1 | it was not cheap as I thought It’s the only reason I choose HOPPER |
| limited airline options for international search | missing-feature | 1 | They should provide more different airline options when we search the flight for international |
Apps that already serve this
| App | Rating | Ratings | Price |
|---|---|---|---|
| Hopper: Flights, Hotels & Cars | 4.8 | 1,219,174 | Free |
| KAYAK: Flights, Hotels & Cars | 4.8 | 490,883 | Free |
| SkyClub - Find Cheap Flights | 4.6 | 114 | Free |
| RatePunk: Cheap Plane Tickets | 4.7 | 5,205 | Free |
| Going: Find Flight Deals | 4.7 | 4,803 | Free |
| Agoda: Cheap Flights & Hotels | 4.8 | 175,388 | Free |
| ARM Travel: Wholesale Rates | 4.7 | 196 | Free |
| Airclub - Flight Deals | 4.8 | 11,619 | Free |
Should you build it?
The job is solved but priced beyond a segment. Undercut with a cheaper tier. Opportunity here scores 13 out of 100 — a function of demand, how crowded the field is, and how badly the existing apps perform. Use the live map to compare it against adjacent tasks.
Who has tried building this
Only 3 attempts, all stale and under 5 stars; abandoned and unproven, likely blocked by flight-data access.
| Project | Status | Stars | Stack |
|---|---|---|---|
| lucifer78907/Flight_deals_finder | stale | 4 | Python |
| kumaylm/FlightDealFinder | stale | 2 | Python |
| weilu/CheapGetaways | stale | 2 | Java |
Open-source projects that attempted this task — active ones show today's bar; abandoned ones are a signal to validate why earlier attempts died.
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