Upgrade tracking built for the people who actually upgrade

2LNR is an upgrade and award space tracker for frequent flyers, operated by Interline, Inc. It monitors confirmed upgrade availability on American, Delta and Alaska at the segment level, and award seats on more than 20 airlines. It exists because what you need for an upgrade call (which flights have space open right now, which routes consistently release inventory, when to spend a systemwide upgrade or certificate and when to hold it) is scattered across carrier sites and takes too long to piece together by hand.

We built 2LNR because we have the same problems you do. We're AvGeeks, passionate frequent flyers, and we think the tools should be as serious as the people using them.

Reviewed .

20+
Airlines in award search
Free
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What 2LNR does

2LNR answers one question: which flights have confirmed upgrade or award space right now? Everything else (alerts, route maps, automatic trip import, loyalty tracking) supports that.

Segment-level upgrade inventory

Airlines price and release upgrade space per segment, not per itinerary. A trip from San Antonio to London through Dallas (SAT-DFW-LHR) has two separate upgrade decisions. 2LNR tracks each segment independently across American, Delta, and Alaska so you see every leg before you commit an upgrade certificate.

We monitor business- and first-class upgrade availability on American, Delta and Alaska at the segment level, with seat counts per upgrade type on each flight. If you want the method, it's one page: confirm the space, then book.

Real-time monitoring and alerts

Upgrade inventory changes constantly. Space that wasn't available at noon can open at 2 PM when a revenue passenger rebooks. 2LNR monitors your routes continuously and sends alerts the moment confirmed space appears.

Alerts reach you via email, SMS, in-app or push, whichever gets to you fastest. Seat monitoring and schedule watches ride the same engine.

Award search and route maps

Award availability across more than 20 airlines in one grid, so you can see where the space actually is before you move a single point. The route map draws the full network we cover on an interactive map, so you can plan trips around where upgrade and award space opens.

Loyalty ledger

Elite-status forecast with a year-end trajectory, hotel elite nights, and transferable-points card balances, pulled together automatically by mailbox import. Your whole loyalty position in one place, free.

Why we built this

2LNR started as a personal spreadsheet, tracking our own flights, upgrade strategy and loyalty balances across too many tools. Then friends wanted access. Then their friends. At some point the spreadsheet needed to become a product, so we're building it with the same attention to detail we bring to planning our own itineraries.

Scratching our own itch

We have deep experience with travel systems and loyalty programs. We face the same upgrade decisions you do: when to use an SWU, which routes actually clear, whether to hold or deploy. We built the tool we wished existed.

Passion project, production grade

We monitor thousands of routes in real time, process millions of data points and send alerts within seconds of an availability change. When upgrade space opens on your LAX-HND, you need to act now.

Attention to the aviation details

Even the fonts, colors, and name have aviation backstories. We sweat the details other tools skip: Flightdeck shows the delay reason the airline filed, and the seat map for the exact aircraft on your flight.

Who this is for

2LNR isn't for everyone. It's built for AvGeeks, travelers who already understand how airline upgrades work and want better tools to play them. If you know what an SWU is without looking it up, you're in the right place.

Executive Platinum and Platinum Pro members

You select systemwide upgrades as Loyalty Point Rewards, starting at the 175,000-point milestone and up to four at 250,000. 2LNR helps you deploy them, or your Delta and Alaska certificates, on flights where confirmed space is available, so you stop burning them on waitlisted flights that never clear.

Points and miles strategists

You know your cost-per-point targets and time your transfers. 2LNR shows confirmed award space across more than 20 airlines so you verify the seat actually exists before you move a single point.

Frequent flyers who want the data

You fly 75K+ miles a year and complimentary upgrades are part of how you travel. You want to know which flights on your route have the best upgrade odds from actual inventory data, not a vague promise.

What makes 2LNR different

Other tools show flight availability. Here's what 2LNR does differently.

Upgrade-first design

Most flight search tools are built for booking revenue tickets or finding award space. Upgrade availability is an afterthought, buried in a sub-menu or requiring a separate search. 2LNR starts with upgrades. The entire interface, from calendar views to filters to alerts, is designed around the upgrade decision: is confirmed space available on this flight, for this upgrade type, on this date?

Segment-level accuracy

Connecting itineraries are the norm on a hub-and-spoke network. A BNA-FCO trip might route through CLT or PHL. Each segment has independent upgrade inventory. 2LNR shows availability at the segment level so you know exactly where the upgrade is likely to clear and where it isn't, rather than getting a single misleading "available" or "unavailable" for the whole trip.

Continuous monitoring

Checking the airline app once and seeing "no availability" tells you nothing about what happens in the next 60 days. Upgrade inventory fluctuates as passengers change bookings, revenue management adjusts allocations, and departure day approaches. 2LNR monitors routes continuously so you catch the window when it opens.

Built by AvGeeks, for AvGeeks

2LNR doesn't explain what an SWU is in every tooltip. It doesn't pad the interface with onboarding tutorials about fare classes. It gives you the data without condescension, because we're the same kind of travelers you are. If you need the background, our airline guides have it, but the tool itself is designed for practitioners who already know the system.

When 2LNR is the right tool, and when it isn't

2LNR answers a narrow question extremely well: is there confirmed upgrade or award space on this flight, on this date? Several adjacent questions it doesn't answer at all. Both halves are below, because knowing which is which saves everyone time.

Reach for 2LNR when

  • You're deciding where to spend an American systemwide upgrade, a Delta Global or Regional Upgrade Certificate, or an Alaska upgrade certificate, and you need to see which dates actually have inventory open.
  • You want a calendar of availability across dates rather than checking one flight at a time.
  • You want to verify award space exists before transferring points, across more than 20 airlines in one grid.
  • You want to be told when space opens instead of re-searching, on a route or a flight you're already booked on.
  • You want to know when award seats typically open up, or which fare-class buckets a specific flight is holding.
  • You want a route map of where an airline actually flies nonstop, or your trips imported from your inbox and your elite status forecast to year end.

Use something else when

  • You want to buy a ticket. 2LNR sells no tickets, quotes no fares, and doesn't price cash itineraries. Book with the airline or an agency.
  • You need live flight status or a delay prediction. Flightdeck shows status for flights you're tracking; it isn't a flight tracker, and the airline's own app is faster for "is my flight late".
  • You want seat-comfort ratings or cabin diagrams to browse. 2LNR reads the live seat map for a specific flight rather than publishing a static seat-quality library. For diagrams, AeroLOPA is the better answer.
  • You want cheap-fare or mistake-fare alerts. That's price tracking; 2LNR tracks inventory, which is a different thing.
  • You need United, Air Canada, Lufthansa or British Airways award space: 2LNR doesn't include them.
  • You fly one or two trips a year on whatever is cheapest. The tool assumes you already hold certificates or points and are deciding where to spend them.

2LNR is an independent product. It isn't an ExpertFlyer extension or add-on; a browser-extension integration existed and has since been retired.

Frequently asked questions

What is 2LNR?
2LNR is a web application that tracks confirmed upgrade availability on American, Delta, and Alaska and award availability across more than 20 airlines. It monitors upgrade inventory at the segment level on American, Delta and Alaska, and award seats on more than 20 airlines, imports your trips automatically from your inbox, and forecasts your elite status. Travelers use it to find flights with confirmed space before booking, set alerts for when space opens, and decide when to use systemwide upgrades, Global and Regional Upgrade Certificates, or first-class certificates.
Who is 2LNR designed for?
2LNR is designed for experienced frequent flyers: American AAdvantage elites (Executive Platinum, Platinum Pro), Delta Medallions and Alaska Atmos Rewards elites, who use systemwide upgrades and upgrade certificates as part of their travel strategy. It is also used by points and miles enthusiasts who want to verify confirmed award space before they transfer points. The tool assumes familiarity with airline upgrade mechanics.
How does 2LNR differ from other flight tools?
2LNR is purpose-built for upgrade decisions rather than general flight search. Key differences: (1) The entire interface is organized around upgrade availability, not fare search. (2) It tracks segment-level inventory so connecting itineraries show per-leg availability. (3) Continuous monitoring with real-time alerts catches availability changes that a point-in-time search misses. (4) Integrated award search across more than 20 airlines and elite-status forecasting support the broader loyalty strategy.
Is 2LNR free?
Yes. Free to start, no credit card required. The free tier includes the upgrade matrix and the award matrix for the next 14 days, segment-level seat counts, on-demand refresh inside that window, mailbox auto-import, the loyalty ledger, visa tracking, and the route-map preview. Pro ($175/year or $50/quarter, cancel anytime) opens the full 331-day horizon and adds unlimited alert rules, real-time and SMS alerts, Flightdeck, and the full route-map overlay.
What airlines does 2LNR support?
2LNR tracks upgrade availability on American (systemwide upgrades), Delta (Global and Regional Upgrade Certificates), and Alaska (first-class upgrade certificates), and award availability across more than 20 airlines.
Does 2LNR track systemwide upgrade (SWU) availability?
Yes. SWU availability depends on upgrade inventory being open on the flight. 2LNR monitors upgrade availability across AA routes so you can identify flights where an SWU is likely to confirm before you apply it. This prevents wasting an SWU on a waitlisted flight that may not clear.
Can 2LNR send alerts when upgrade space opens?
Yes. You can set alerts on specific routes and date ranges. When confirmed upgrade inventory appears on a monitored flight, 2LNR sends a notification via email, SMS, in-app, or push depending on your preferences. Alerts are designed for time-sensitive availability changes where acting quickly matters.

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