Houston (IAH) – Oklahoma City (OKC)
- Distance
- 636 km
- 395 mi · 343 nm
- Flight time
- 1 h 30 min / 1 h 34 min
- Average gate to gate: IAH → OKC / back
- Time difference
- none
- CO2 per passenger
- 80 kg
- One way, economy, incl. RF (47 kg CO2 only)
- Passengers / year
- 319,320
- Aug 2025 – Jul 2026 · +0.4%
- Flights / week
- 99
- Both directions, average
- Seats filled
- 76%
- 417,543 seats a year
- Airlines nonstop
- 4
- YV, OO, UA
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
- 341°
- Heading from OKC
- 160°
- Halfway point
- 32.69, -96.44
- Great-circle km
- 637 km (sphere, for EU261)
- In the air IAH → OKC
- 1 h 3 min
- In the air OKC → IAH
- 1 h 5 min
- Clocks
- Same time in both
The estimate for a route without real times is 1 h 35 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 26,342 |
| Sep 2025 | 25,814 |
| Oct 2025 | 28,882 |
| Nov 2025 | 25,051 |
| Dec 2025 | 24,625 |
| Jan 2026 | 23,329 |
| Feb 2026 | 24,868 |
| Mar 2026 | 23,112 |
| Apr 2026 | 24,239 |
| May 2026 | 30,505 |
| Jun 2026 | 31,182 |
| Jul 2026 | 31,371 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 450 |
| Sep 2025 | 426 |
| Oct 2025 | 474 |
| Nov 2025 | 459 |
| Dec 2025 | 397 |
| Jan 2026 | 376 |
| Feb 2026 | 398 |
| Mar 2026 | 414 |
| Apr 2026 | 408 |
| May 2026 | 460 |
| Jun 2026 | 447 |
| Jul 2026 | 460 |
Airlines flying IAH–OKC nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| YVMesa Airlines | 43 | 41% |
| OOSkyWest Airlines | 37 | 35% |
| UAUnited Air Lines | 12 | 19% |
| C5CommuteAir LLC dba CommuteAir | 7.6 | 6% |
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 · 4,149 flights
- Embraer-145 · 394 flights
- Airbus Industrie A319 · 191 flights
- Airbus Industrie A320-100/200 · 148 flights
- Boeing 737-900 · 129 flights
- Boeing 737-700/700LR/Max 7 · 59 flights
- Boeing 737-800 · 36 flights
- Boeing 737-900ER · 22 flights
Also carried: 2 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 81.9%
- Arrived within 15 min of schedule
- Average delay
- 15 min
- Late arrivals count, early ones as 0
- Cancelled
- 1.1%
- Flights counted
- 2,570
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| OOSkyWest Airlines | 82.4% | 15 min |
| UAUnited Air Lines | 80.2% | 14 min |
Delay minutes by cause: airline 35% · aircraft arriving late 37% · air traffic system 18% · weather 10% · 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
- $280
- One way, all cabins
- Average over a year
- $262
- Q2 2025 – Q1 2026
- Largest airline
- United Air Lines
- 97% of passengers · $279
- Lowest-fare airline
- United Air Lines
- 97% of passengers · $279
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $255 · Q3 2025 $253 · Q4 2025 $262 · Q1 2026 $280).
Fare outlook, Q1 2027: about $286, likely $247–$326
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 90% of the time over 21 quarters (median error 4.2%). 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
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: 637 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 Oklahoma City
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 |