Flight number: UA 320
Operating days: 1, 2, 3, 4, 5, 6, 7
- DEN 05:00 → IAH 08:20
Flights from Denver (DEN) to Houston (IAH)
Route intelligence for DEN → IAH: direct flights, stopover options, and timetable coverage in one place.
Direct flights
3 direct option(s) across 3 airline(s) · 1,387 km route distance.
- Frontier Airlines · 132 min · 1387 km
- Spirit Airlines · 132 min · 1387 km
- United Airlines · 132 min · 1387 km
Explore these airlines on this city pair
Open each airline route-map page to compare broader network depth before committing to a nonstop or one-stop strategy.
Stopover options
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 52m · DEN → IAH
- 1 stop(s) · 4h 54m · DEN → IAH
- 1 stop(s) · 4h 54m · DEN → IAH
- 1 stop(s) · 4h 55m · DEN → IAH
- 1 stop(s) · 4h 55m · DEN → IAH
Timetable coverage
Published flight numbers: UA320, AC3433, NZ6500, AV2128, UA1354, AC3003, EK6053, NZ6501, UA489, UA588, NZ6459, UA475
Plan this city pair
Compare nearby alternatives and airline networks to decide whether a direct trip, one-stop connection, or reverse search gives you better options.
Route planning checklist
- Compare direct duration with one-stop total duration before committing to a fare.
- Check inbound alternatives on flights to IAH when return timing is important.
- Use Guides for alliance and hub strategy playbooks.