Is United Really More Expensive at Houston? We Checked the Data.

If you've ever booked a flight out of Houston's Bush Intercontinental Airport, you've probably had the feeling that United Airlines knows exactly how much leverage it has. They're everywhere at IAH. The alternatives are thin. And the fares feel like it.

So we decided to actually check — using U.S. Department of Transportation fare data covering Q2 2025, with 200,000+ real tickets. We compared United's pricing power at IAH against American's equivalent dominance at Dallas/Fort Worth (DFW) — arguably the most direct comparison in American aviation.

The short answer: yes, United is more expensive at IAH on most routes. But American isn't exactly cheap at DFW either — and the gap is smaller than you'd expect. And on Florida routes, American is actually the more expensive one.

The Market Share Reality

First, the market context. United owns IAH in a way few carriers dominate any airport — over half of all passengers fly United. At DFW, American's grip is even tighter at nearly 60%.

The Head-to-Head: West Coast Routes

On routes to the West Coast, mountain destinations, and the Pacific Northwest, United commands a significant premium out of IAH compared to American out of DFW. The chart below shows average fares to the same destinations from each hub — positive numbers mean United/IAH is more expensive, negative means American/DFW charges more.

The Overall Numbers

United/IAH average fare: $291. American/DFW average fare: $278. A $13 difference overall — United is about 5% more expensive on average. The yield figures tell a similar story: United extracts 28.2¢ per mile at IAH, while American extracts 28.9¢ per mile at DFW. Counterintuitively, American is slightly more efficient per mile — though United compensates with more long-haul routes where absolute fares are higher.

What This Means for Houston Travelers

Your instinct is correct: United charges more at IAH, particularly to the West Coast and mountain destinations. San Francisco costs 39% more from Houston than the same route from Dallas. Denver is 33% more. That's real money on a regular basis.

The practical advice:

• Consider Southwest from Hobby (HOU) for leisure destinations — their fares are consistently competitive
• Check Frontier — ~$111 average fares from IAH are available if you can work with the ultra-low-cost model
• Use points strategically — United MileagePlus redemptions are more valuable at a captive hub like IAH than at a competitive airport
• Be flexible on routing — connecting through Denver or Chicago can sometimes produce lower fares than direct IAH flights

The Bottom Line

Houston, you're not imagining it. But the story isn't simply "United gouges Houstonians." It's about network geography and where each carrier faces meaningful competition. Both IAH and DFW have Southwest nearby — Hobby for Houston, Love Field for Dallas — and both hubs feel that pressure on Florida and Southeast routes. But for West Coast flying, United at IAH faces virtually no competitive check. No Southwest, no meaningful American presence, no Frontier. That's where you feel it most — and that's where the 30–40% premium over DFW lives.