Route guide

Fraccion Milpillas to Houston (SLP-IAH): Nonstop Upgrade & Award Space

United Airlines and Volaris fly nonstop between Fraccion Milpillas (SLP) and Houston (IAH), roughly 17 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every SLP to IAH departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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17
Nonstop flights a week
637 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every SLP to IAH departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Fraccion Milpillas to Houston to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each SLP to IAH departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See SLP to IAH on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Fraccion Milpillas to Houston nonstop

Carriers operating SLP to IAH nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • United Airlines
  • Volaris
See SLP to IAH on the interactive map →

Frequently asked questions about SLP to IAH

How far is Houston from Fraccion Milpillas?
SLP to IAH covers about 637 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from SLP to IAH?
United Airlines and Volaris fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How many flights a week are there from SLP to IAH?
About 17 nonstop flights a week run between Fraccion Milpillas and Houston in the current schedule, operated by United Airlines and Volaris. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on SLP to IAH?
Open the SLP to IAH calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Fraccion Milpillas to Houston route, and 2LNR will notify you when space opens. It's free to start.

Never miss SLP to IAH upgrade or award space

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