I Understand Why United is So Mad About Chicago Flight Caps


If you listened to last week’s episode of The Air Show, you heard me briefly lose my mind about how the government has approached a variety of topics lately. One of the examples I used is the flight cap that was put into Chicago’s O’Hare airport this summer. I didn’t think I’d get so wound up about that, but after learning more about it, it turns out I was wrong. The Federal Aviation Administration (FAA) really made a mess of this.

I’ve detailed the run-up in capacity at O’Hare here. American has finally decided to put full effort in regrowing O’Hare after ignoring it for years post-pandemic. But United doesn’t want to give up the advantage it had built while American’s mind was elsewhere, so it started adding dozens and dozens of flights of its own. The end result was likely unsustainable even in decent weather. When storms hit? Forget it, this was going to be a nightmare.

To its credit, the FAA made a rare decision to proactively step in instead of waiting for everything to fall apart and then make a move. It convened a conference of airlines to discuss individually what they could do to help reduce capacity and make the airport function better this summer. International airlines were exempt from this, so really, it’s an American and United story.

Over the three days of the conference spread out in March, transcripts show that the FAA was ill-prepared for this discussion. Perhaps my favorite illustration of this is the moving target that is the operational cap. Though FAA Administrator Bryan Bedford had initially said the cap would need to be at about 2,500 operations per day, the FAA showed up to the talks saying the cap would be 2,400. Then in a meeting with United, LaKisha Price who is Acting Vice President of System Operations Services for Air Traffic said “So, we have some wiggle room with the 2,400. I think the Administrator put out less than 2,500.” She then followed that up saying “We want to be somewhere around 24 or 2,450.” After lunch, LaKisha came back saying that they had been “cleared” to raise that to 2,550.

By day two, the cap had changed to a very specific 2,608. Dan Edwards, Associate Administrator of Airports and Acting Assistant Secretary for Aviation and International Affairs, was very firm.

We are not flexible on the total movements. That’s — you’ve got to trust me on that. 2,608, that’s the hard line

But then when the order came out? The “hard line” was not hard at all. Everyone was surprised with an increase up to 2,708. We are just playing games here. But here is where we stand:

Chicago O’Hare Scheduled Daily Operations

Data via Cirium

I pulled this last week, because it shows where the airlines made their adjustments for May to get under the 2,708 red line. But then in June, you can see it’s before cuts have been made by any airline. This, by the way, shows yet another FAA failure. The airlines raced to get their cuts in so they would be ready for the flight cap to start on May 17. But after all the cuts were made? Then the FAA pushed the start back to June 2. I would be absolutely livid if I were an airline trying to function in this mess.

To be clear, both American and United probably were livid, but in the end, American was fine with the ultimate decision to base the cap proportionally on summer 2025 schedules while United was not. That probably explains why American’s meetings were far more boring, the airline simply trying to keep a set proportion of total flights vs United, while United got outwardly angry in the most entertaining way possible. In other words, if you’re going to read the transcripts, read United’s parts first.

Despite the overheated approach to the situation, there is real merit in United’s discontent. The heart of United’s complaint goes back to the Chicago gate allocation process. I have written about this so, so many times. But essentially, at the beginning of the year, airlines can request gates to be reallocated — actually linear gate frontage but that’s just a proxy for gates — based on actual airport operations. The results are finalized in June, and the gates change in hands in October.

The first year this process went into effect was in 2025. In early 2025, United request a reallocation which would have been based on calendar year 2024 operations. United picked up five gates, and American lost four. (Gates can be reconfigured within the linear frontage provided, so that’s an approximate distribution.) We also know that in the months to follow, American and United would each sublease two of Spirit’s gates.

I know, I know this is all old news. But this is why it’s a problem that the FAA opted to go with summer 2025 operations as a baseline for 2026. In summer 2025, United and American were still running an operation based on the gates that they had before the first reallocation. That meant United was physically able to fly less and American was physically able to fly more than after October.

This was the result of a long play by United to gain gates and force American to reduce. American decided to focus elsewhere instead of Chicago during its pandemic rebuild, it miscalculated, and it paid the price. But now, the FAA is erasing all those hard-fought gains by United with this order.

By forcing the airlines to operate the same proportion they had in summer 2025, it takes away United’s ability to use those extra five gates it earned. So when the next reallocation comes around, United will lose more gates because it was given gates it isn’t allowed to fully utilize.

O’Hare % of Operations By Airline

Data via Cirium

The FAA does not care about this. Not even one bit. In the third day of the hearing — which, by the way, you should read entirely because it is the best reading — Dan Edwards says “The gates are a function of… the use and lease agreement with Chicago Airport. I have no control over who has what gates, who operates from what gates.”

That much is true, but FAA should be taking that into account. I know that some of you will say that I sound like an apologist for United’s position, but that’s not it. United really wanted to based the proportion on summer 2026 planned operations. It points to that being precedent in several other cases from Newark to Amsterdam and Bogotá. But I think the frenetic run-up has certainly distorted the reality of the situation, making 2026 a non-starter.

What I think makes the most sense is to take the summer of 2025 and then make adjustments based on the change in gate holdings that happened after that period but will be in effect for summer 2026. But I’m just tilting at windmills here. This isn’t going to change. And undoubtedly American would say that too is cherry-picking a certain moment in time that disadvantages one airline versus another.

In the end, the FAA really created a mess of this whole thing. If I were American I wouldn’t be mad because even though it was a mess, I got what I wanted. But if I were United? Yeah, I’d be pretty mad.

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Brett Avatar

25 responses to “I Understand Why United is So Mad About Chicago Flight Caps”

  1. Matt Avatar
    Matt

    I love the analytical articles on this site, but I do have to say I feel like you are favoring United’s ego when it comes to the Chicago issue. United was smart about what they were doing in Chicago from a business and competition perspective, until last year. It did not increase flights proportionally in 2025 to American, and got scared that they might actually be able to gain ground on them in 2026, so they came out with the insane schedule increases that, if they had been more conservative, the FAA probably wouldn’t have had to step in anyway. Completely agree that the FAA was completely unprepared for the reallocation meetings, but that shouldn’t be surprising with this administration. United was asking for this to happen by that insane schedule dump, I have little sympathy for how they fair in the outcome of it. Honestly, and this may be my distaste for Kirby’s antics speaking here, they got what they deserved.

    1. Mark Avatar
      Mark

      I agree with you Matt. Brett, in your analysis and podcast, you failed to mention that AA lost the gates due a legal interpretation of ORD’s policy. AA presented a different view of how the policy should be interpreted which the court disagreed with, but was not without merit.
      In the meeting notes, I understand the FAA referenced Scott Kirby’s public statements admitting UA was intentionally adding an excessive number of flights to short haul destinations that were operationally ill advised for no other reason but to try to gain more gates (Scott’s “line in the sand” comments).
      In my opinion, the FAA’s decision struck the right balance to resolve the issue, restore sanity to the summer schedule, and preserve competition, though how they got their was less than professional.

      1. Alex B. Avatar
        Alex B.

        Uhhh, the court disagreed with AA because AA’s claim was without merit.

        Nobody disagrees about the reallocation process at all; AA’s claim was essentially one about timing and that UA shouldn’t be able to start the process that year. But there’s no actual disagreement about the actual reallocations, nor was there ever actually an issue with AA flying their schedule with their reduced gate allocation – they just didn’t want United to get an advantage.

        Again, the purpose of the gate reallocation process is to ensure airlines can actually compete and ramp up flights and have sufficient gate space to do so. But if the FAA doesn’t actually allow more flights (e.g. more competition) even after spending billions on fixing ORD’s runways and airfield, then they’re screwing up the entire AULA in the first place.

  2. Southside Emil Avatar
    Southside Emil

    Brett,
    I agree. You do seem to lean towards the UA side.

    The core issue stems from O’Hare’s 2018 Airline Use and Lease Agreement. When American signed onto that deal, it secured three new “L-Stinger” gates in Terminal 3. American’s position was that the last L-Stinger gate opened March 14, 2025, so any gate redetermination couldn’t begin before April 1, 2027.

    But the city disagreed. American pointed to an email between American and City Hall staffers to make its case, but the city and United argued that the contract approved by the City Council didn’t include the provision about the new Terminal 3 gates. The Cook County Circuit Court Judge sided with the city although “the court had no doubt” that city and airline officials brokered a side deal, the judge said that agreement didn’t ultimately make it into the final contract.

    The result: American lost four gates, dropping its count to 59, while United picked up five, giving it 95.

  3. Bevvy Avatar
    Bevvy

    I would think that Brett would be biased towards American since America West is part of their pedigree!

  4. NedsKid Avatar
    NedsKid

    Maybe you lean toward the UA side – but that’s the side that, Quayles’ amazing theatrics aside, has a basis in precedent and what’s fair. The FAA has to pick a moment in time, which someone somewhere will find patently unfair to them, but circumstances always change. WN has dropped out of ORD after picking up an additional gate. Spirit sold leases and dropped in flights. Yeah, flights need to come out of the schedule… but I agree that a proportional allocation based on the ability to run those flights (as in gates) is the best of bad options.

  5. SEAN Avatar
    SEAN

    If you really want to solve this problem, then elimination of a lot of the short hall flights will be necessary & be replaced with behind security airport to airport bus service. Brett has done articles on those in recent years.

  6. emac Avatar
    emac

    It’s noteworthy that United hasn’t made a bigger stink about this, tried some legal recourse or at least let Kirby talk a bunch more smack about how much AA will still lose in Chicago this summer. Probably because Kirby has moved onto his next project.

  7. Tim Dunn Avatar
    Tim Dunn

    You need only look at yesterday, a storm day in the Midwest, to see what the FAA was trying to avoid.
    17% of ORD flights were cancelled and 43% were delayed. Someone can tell us how many flights were scheduled at ORD yesterday but it doesn’t take much for it all to not work – and that happens w/ regularity in Chicago just as it does in NYC where 2 of 3 airports are slot controlled and EWR is schedule coordinated – and at other airports where the FAA has not had to intervene.
    AA and UA’s system on time percentages were lower than their own averages so there is an impact on the national transportation system when one airport is out of whack.

    and it is precisely Chicago’s gate assignment/utilization formula that is at fault. and the problem is magnified by the fact that AA and UA use larger amounts of regional jets than at just about every other large hub. UA’s high rates of growth at ORD in their planned schedules were magnified by the use of small regional jets even if they were two-class. UA could easily accommodate as many seats at ORD as they planned to offer if they upgauged a number of flights to larger aircraft – but that doesn’t work given that ORD is split between two megacarriers.

    UA has talked for months about trying to eliminate AA’s hub at ORD and THAT strategy is the casualty of the FAA’s actions. High increases in the growth of flights is going to put stress on any system but the faulty gate allocation formula at ORD and UA’s stated intent to eliminate AA’s ORD hub simply forced the FAA to act.

    1. Alex B. Avatar
      Alex B.

      I’m not sure why delays from a thunderstorm are relevant here – that would happen for just about any airport.

      Likewise, the airport’s gate allocation formula also isn’t really at fault here. The old lease inhibited competition, allowing both airlines to veto capital projects for the other that would add capacity, and also to veto ones to allow new entrants into the market. The FAA (rightly) discourages those kinds of lease provisions as anti-competitive.

      The new lease supports competition by ensuring that any airline can find gates to operate their schedule. This is more or less required by FAA policy! Which is why it’s absurd to blame ORD for their lease, which is supporting competition per FAA policy, only to have the FAA then come in and undercut that very competition.

      1. Brett Avatar

        Alex B – You’re right, delays from a storm are going to happen even with flights under the cap. Nobody should be looking at stormy days at set that as a baseline or you’d have to operate half what’s out there every day. Yesterday, the airlines had 2,764 operations scheduled, so it was 56 flights above the cap. Would having 56 fewer operations help? Sure. Would it have made a meaningful dent in the chaos? No.

    2. Andy Avatar
      Andy

      Because storms don’t cause delays and cancellations at any Delta hubs do they Tim? Make your comment make sense!

      1. Tim Dunn Avatar
        Tim Dunn

        storms roll through DL hubs too, Andy.
        and when it happens, it creates a mess at least out of DL’s system esp if it happens at ATL.

        The point is that if an adult doesn’t step in and stop an untamed growth in number of flights esp. on a very fast basis, then the damage would be much worse.

        not only did CF’s answer show that yesterday’s schedule was just over the cap but it was also far short of what ORD was scheduled to operate this summer if the FAA had not stepped in

        the idea that any airline can dump a bunch of flights into any medium to large airport has been crushed by the FAA; they simply do not flex staffing up in a matter of months even if ATC is fully staffed and if an airport’s infrastructure can fully handle the increase in traffic.

        Slow and steady wins was highlighted yesterday as a strategy that works; the same is true for other airlines and other hubs today and tomorrow.

  8. Eric R Avatar
    Eric R

    It gives off the optics that the government did not want one carrier to take too big of a lead or have too big of an advantage at ORD.

  9. Jeremy Avatar
    Jeremy

    What’s also particularly interesting in your chart Cranky is the numbers for Q1 2026 + April and May – if the reallocations continue, it looks like UA may have been asleep at the wheel and let AA further erode the gap vs 2025 (a year in which AA gained 3 gates at UA’s expense).

    Given these restrictions will last until October, it appears that AA may very well gain marginally at UA’s expense in 2026 as well. It may make the non-peak periods in upcoming years interesting (though they may be at risk of similar restrictions).

    1. Brett Avatar

      Jeremy – Well, this is why I don’t think 2026 is good to use either. American decided it wanted to play the gate game to an extreme in December when it pulled forward its summer schedule to start in mid Feb. That’s what kicked off the escalating arms race. That move was never about profit, because adding flights so late in the game during a severe off-peak period makes no sense… except to grab gates. So that’s when the airlines all started adding back and forth.

  10. Angry Bob Crandall Avatar
    Angry Bob Crandall

    The core issue: sheer size and layout

    O’Hare covers over 7,000+ acres with eight runways. The old “X”-shaped intersecting runway pattern is being replaced through the “O’Hare 21” expansion with a modern parallel runway system but while parallel runways increase takeoff and landing capacity, they force planes to loop around the entire terminal core to reach the correct departure point without crossing active runways, a procedure called “perimeter taxiing.”

    O’Hare is a dual-hub for both United and American Airlines, meaning the sheer volume of simultaneous pushbacks creates what amounts to a taxiway traffic jam; similar to a highway at rush hour.

    O’Hare handles roughly 1.5 to 2 operations per minute- about one takeoff or landing every 30–40 seconds so the sequencing of all that traffic on the ground is incredibly complex.

    Until the O’Hare 21 expansion is fully complete, there’s not much of a fix it’s essentially a structural problem baked into how the airport was built and how busy it is.

    1. Aer Dingus Avatar
      Aer Dingus

      Agreed. As a United 1K I spend way too much time at ORD. Unfortunately I do not have other options. I specifically did not fly yesterday due to weather conditions knowing ORD was going to be a mess. It’s a mess when the weather is ok.

      The current terminal construction, which IMO is poorly conceived, is exacerbating already stressed airport operations. The amount of time I’ve spent YTD–and not the busy season–taxiing, sitting in the penalty box, or shuffling between C4 and some far away E or F gate is frustrating.

      Yes the FAA is dysfunctional, slow, ill-prepared, whatever you want to say, but they are correct in needing to mediate this executive pissing contest over gate allocations. Flyers don’t care about this crap. They do care about how smoothly their trip goes and UA, AA and the City have lost sight of this.

  11. Emil D Avatar
    Emil D

    CF,
    Are the Essential Air Service slots at ORD affected by this?

    1. Brett Avatar

      Emil D – There are no EAS slots at O’Hare as far as I know. (There aren’t technically any slots at all.) But I assume the airlines that committed to serving EAS routes with certain frequencies will have to continue doing that.

      1. John G Avatar
        John G

        Brett, did you forget about contour at O’Hare?

        They fly several EAS routes out of there. I flew them from O’Hare to Marion Illinois a few months ago.

        1. Brett Avatar

          John G – I’m not forgetting about anything. There are no slots at O’Hare. There are operations on EAS routes, and I assume that the airlines that fly them will have to continue them at the agreed upon frequencies unless something changes in the agreement. For example, Fort Leonard Wood is moving from O’Hare to Nashville. But I don’t think they can just move that arbitrarily. I assume there’s a docket somewhere where this was agreed upon.

          1. NedsKid Avatar
            NedsKid

            Yes, all of the movements like TBN going to BNA are DOT-approved and have to have community approval (in this case, the EAS city wanted it). Docket DOT-OST-1996-1167 if you really get bored…

            And yeah, everyone else will have to fly the EAS frequencies that were contracted in/out of ORD and can’t just change to another location to use the portion of the departures allocation for something else (unless the EAS community agrees).

  12. southbay flier Avatar
    southbay flier

    This isn’t a total surprise. This is easily the most incompetent and corrupt government of my lifetime (I was born when Nixon was president). I’d be surprised if they got it right.

  13. Tom Gold Avatar
    Tom Gold

    Seems to me that the FAA’s job is to promote what is best for airports and the flying public using them. To that end, is it better for the flying public to have one dominant carrier at O’Hare, or two competing ones? Whether United was smarter and AA dumber, United more aggressive and AA not, doesn’t affect what should be the right outlook for a government agency. Life (and as we have seen, government) can sometimes be “unfair” based on a viewer’s particular lens. It is the public good that should drive these decisions. Not sure if that was the case here, but it was in my view the result.

    Also, UA’s obsession with O’Hare seems almost perverse to me. They seem to be putting all of the eggs in one hub (or 3 or 4). In the end, forcing a little less focus on the one airport may be a good thing for UA, and a silver lining.

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