Houston (IAH) – Raleigh (RDU)
- Distance
- 1,678 km
- 1,042 mi · 906 nm
- Flight time
- 2 h 39 min / 3 h
- Average gate to gate: IAH → RDU / back
- Time difference
- 1 h
- CO2 per passenger
- 211 kg
- One way, economy, incl. RF (125 kg CO2 only)
- Passengers / year
- 296,589
- Aug 2025 – Jul 2026 · +5.8%
- Flights / week
- 48
- Both directions, average
- Seats filled
- 80%
- 368,877 seats a year
- Airlines nonstop
- 3
- UA, F9, YV
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from IAH
- 63°
- Heading from RDU
- 252°
- Halfway point
- 33.21, -87.34
- Great-circle km
- 1,675 km (sphere, for EU261)
- In the air IAH → RDU
- 2 h 14 min
- In the air RDU → IAH
- 2 h 29 min
- Clocks
- Raleigh is 1 h ahead of Houston
The estimate for a route without real times is 2 h 45 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 23,715 |
| Sep 2025 | 23,291 |
| Oct 2025 | 27,331 |
| Nov 2025 | 24,334 |
| Dec 2025 | 25,132 |
| Jan 2026 | 20,269 |
| Feb 2026 | 21,746 |
| Mar 2026 | 26,307 |
| Apr 2026 | 23,192 |
| May 2026 | 26,769 |
| Jun 2026 | 26,668 |
| Jul 2026 | 27,835 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 201 |
| Sep 2025 | 201 |
| Oct 2025 | 225 |
| Nov 2025 | 205 |
| Dec 2025 | 212 |
| Jan 2026 | 185 |
| Feb 2026 | 184 |
| Mar 2026 | 213 |
| Apr 2026 | 206 |
| May 2026 | 224 |
| Jun 2026 | 224 |
| Jul 2026 | 226 |
Airlines flying IAH–RDU nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| UAUnited Air Lines | 27 | 61% |
| F9Frontier Airlines | 8.5 | 24% |
| YVMesa Airlines | 13 | 15% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Embraer ERJ-175 · 676 flights
- Boeing B737 Max 800 · 319 flights
- Boeing 737-800 · 258 flights
- Airbus Industrie A321-200n · 223 flights
- Boeing B737 Max 900 · 195 flights
- Airbus Industrie A320-100/200 · 195 flights
- Airbus Industrie A319 · 175 flights
- Airbus Industrie A320-200n · 131 flights
Also carried: 19 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 84%
- Arrived within 15 min of schedule
- Average delay
- 13 min
- Late arrivals count, early ones as 0
- Cancelled
- 1.2%
- Flights counted
- 1,848
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| UAUnited Air Lines | 86.4% | 11 min |
| F9Frontier Airlines | 76.7% | 22 min |
Delay minutes by cause: airline 28% · aircraft arriving late 48% · air traffic system 21% · weather 2% · security 0%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q1 2026
- $272
- One way, all cabins
- Average over a year
- $266
- Q2 2025 – Q1 2026
- Largest airline
- United Air Lines
- 64% of passengers · $310
- Lowest-fare airline
- Frontier Airlines
- 24% of passengers · $154
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $297 · Q3 2025 $245 · Q4 2025 $252 · Q1 2026 $272).
Fare outlook, Q1 2027: about $278, likely $240–$317
The average fare paid we expect a year after Q1 2026, the newest DOT quarter. On this route, past forecasts made this way fell inside the range 76% of the time over 21 quarters (median error 5.6%). An estimate from US DOT data: not a price you can book, not a guarantee, not advice on when to buy. How the outlook works
Cheapest quarter on this route: Q3, typically 7% below the year's average (9 years of DOT data, without 2020–21).
U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 1,675 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.
Every airport pair between Houston and Raleigh
Kilometres. Linked numbers have a page of their own. All Houston airports
More routes from IAH
| Route | Distance | Passengers / year |
|---|---|---|
| IAH → ORD | 1,489 km | 1,711,056 |
| IAH → DEN | 1,387 km | 1,641,444 |
| IAH → LAX | 2,219 km | 1,544,652 |
| IAH → ATL | 1,109 km | 1,430,755 |
| IAH → DFW | 361 km | 1,257,452 |
| IAH → SFO | 2,632 km | 1,223,236 |
| IAH → MCO | 1,375 km | 1,147,728 |
| IAH → EWR | 2,252 km | 1,135,261 |
| IAH → LGA | 2,279 km | 1,049,227 |
| IAH → LAS | 1,966 km | 1,028,809 |