The current flight search process is cumbersome, requiring users to input multiple details before seeing prices. This creates frustration for travelers who prioritize finding the cheapest flights for a specific trip length but are flexible about destinations. Existing tools either lack simplicity or force manual adjustments.

The Core Idea

One approach could involve a flight search tool where users only input their desired trip length (e.g., "5 days"). The system would then:

• Query flight APIs to find the cheapest round-trips matching that duration from the user's location
• Display results sorted by price with optional region filters
• Allow drilling down into specific flight details upon selection

This simplifies the process for budget-conscious travelers who care more about cost and duration than specific destinations.

Implementation Strategy

A minimal version could start with:

1. Basic interface connecting to a single flight API (like Skyscanner)
2. Core functionality of converting trip length into date-range queries
3. Simple ranking and display of cheapest options

From there, additional features could expand to multiple departure airports, regional filtering, and integration with affiliates for monetization.

Competitive Advantage

While tools like Kayak Explore or Skyscanner's "Everywhere" search offer similar value, they still require date inputs. This approach could stand out by:

• Truly minimizing inputs (just trip length)
• Catering specifically to the cost-and-duration-first traveler segment
• Potentially creating better discovery experiences through algorithmic optimization

The concept fills a specific niche in travel planning, potentially making flight searches quicker and more intuitive for flexible travelers.