---
title: "Connection planner: upgrade-friendly connecting flights"
description: "Find the connecting itinerary where the upgrade clears: viable routings through the hubs, with schedules, equipment and upgrade availability per leg."
canonical: "https://2lnr.com/lp/route-explorer"
url: "https://2lnr.com/lp/route-explorer.md"
date_modified: "2026-09-30T00:00:00Z"
---

# Plan connecting flights where the upgrade clears

2LNR's connection planner surfaces the viable ways to fly a city pair through the network's hubs, with total travel time, each layover, the aircraft on each leg and the upgrade availability profile of each leg. A connection can have space when the nonstop has none, and this is the tool that shows you which one.

Every layover it offers is at least 45 minutes and no more than 12 hours. The route map is free to browse with no account, the connection planner needs a free account, and the upgrade overlay on each leg is included with Pro. 2LNR doesn't sell or book tickets; it tells you which routing is worth booking. If you want to explore the network itself rather than build a connection, start on the [route map](https://2lnr.com/lp/route-map.md).

[Explore routes](https://2lnr.com/explore/routes) [See pricing](https://2lnr.com/pricing.md)

Updated September 30, 2026.

### Interactive map

Direct and connecting flight paths drawn on a real map. Click any airport to see what flies in and out.

### Schedule calendar

Day-by-day flight schedules with equipment and cabin layout, plus the upgrade availability overlay on Pro.

### Connection finder

Find connections through your airline's hubs, each with a layover between 45 minutes and 12 hours.

## Related

This page is about building the connection. Exploring the network, checking a specific route's availability and understanding how upgrade space behaves each have their own pages.

- [The route map: explore the network and upgrade availability](https://2lnr.com/lp/route-map.md)
- [How to check award availability](https://2lnr.com/guides/award-availability.md)
- [When award seats open up, and how far ahead each airline's calendar opens](https://2lnr.com/guides/when-do-award-seats-open-up.md)
- [Monitoring vs searching: why the mental model matters](https://2lnr.com/guides/monitoring-vs-searching.md)
- [Plans and pricing](https://2lnr.com/pricing.md)

## Start exploring

The route map is free to browse with no account; the connection planner needs a free account. The per-leg upgrade overlay is included with Pro.

[Explore routes](https://2lnr.com/explore/routes)