Which airlines fly to IAH?
18 airlines have inbound service to Houston in the current dataset.
Airlines
18 carriers
Domestic origins
40 airports
International origins
31 airports
Use these jumps for fast page scans, then open map view to compare nearby alternatives by distance and duration.
Country totals are page-scoped snapshots from the current search and pagination view. If this mix looks narrow, clear filters. For a broader geography-first comparison, open map view, or open a country pivot to browse airports there.
Search matches origin city names, airport IATA/ICAO codes, plus airline names and codes (for example, “London”, “LHR”, “EGLL”, “Lufthansa”, or “LH”).
Flight-number preview is shown for up to 8 routes per page.
Flight-number preview timed out.
Top inbound carrier pivots
Open airline route-map pages to check each carrier’s broader network before committing to one inbound option.
Pivot links are page-scoped snapshots, so the carrier mix can shift as you paginate or adjust filters.
Need a broader carrier scan? go to page 1 to reset this page slice first, or jump to the full airlines directory.
Airline totals on this card reflect routes visible for your current search and page. If the list looks too small, clear filters and revisit page 1.
Prefer a geography-first scan? Open map view for IAH to compare inbound origin clusters before drilling into individual routes.
Country pivots and route counts on this page are pagination-scoped snapshots; map view shows the full inbound spatial spread for IAH.
Showing up to 30 origin airports from routes visible on this page. Visit other pagination pages or clear filters to reveal additional origins, or browse airports by country.
You’re viewing routes 101-200 of 231 (page 2 of 3). The detail list below shows the first 40 routes from this page, so country-mix chips, airline badges, and flight-number previews can shift as you paginate or change filters.
Use pagination for side-by-side route-card comparisons in this slice; for full-network discovery across all pages, pivot to map view.
Popular inbound routes reflect links visible on this page, so suggested route chips can change as you paginate or adjust filters. Start by go to page 1 for a broader baseline, then use map view for full-network discovery.
Need more inbound route options? Go to page 1 to repopulate quick-route chips, or open map view for a full-network route scan.
Origin-country mix in this list:United StatesUS 24/40United KingdomGB 6/40MexicoMX 5/40NigeriaNG 1/40Costa RicaCR 1/40PeruPE 1/40
Chip ratios are page-slice signals for the routes shown above, not full-network totals.
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Use this sequence to avoid one-way optimization mistakes: validate inbound strength, outbound backups, and alliance depth before committing to a final itinerary.
1. Audit inbound coverage to IAH
Review feeder origins and airline depth first so you understand how many practical return paths exist.
Open step →2. Compare outbound backups from IAH
Open outbound routes to confirm you are not trapped by weak return coverage on your likely travel dates.
Open step →3. Stress-test route options on map view
Use spatial map context to compare nearby alternates and shorter fallback hops if your first choice disappears.
Open step →4. Validate alliance and airline depth
Check carrier and alliance pages to ensure mileage continuity and same-day backup options.
Open step →Compare inbound and outbound coverage to evaluate connection opportunities, seasonal route depth, and airline mix before locking in your itinerary.
18 airlines have inbound service to Houston in the current dataset.
On this page, 71 origin airports connect to IAH, including 40 domestic and 31 international origins.
Use this page to identify feeder cities and airline options into one airport, then open city-pair route pages and map view to compare alternatives before booking.