Houston (IAH) – Portland (PDX)
- Distance
- 2,936 km
- 1,825 mi · 1,586 nm
- Flight time
- 4 h 28 min / 4 h 8 min
- Average gate to gate: IAH → PDX / back
- Time difference
- 2 h
- CO2 per passenger
- 369 kg
- One way, economy, incl. RF (218 kg CO2 only)
- Passengers / year
- 342,124
- Aug 2025 – Jul 2026 · +25.8%
- Flights / week
- 47
- Both directions, average
- Seats filled
- 82%
- 416,465 seats a year
- Airlines nonstop
- 2
- UA, AS
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
- 314°
- Heading from PDX
- 117°
- Halfway point
- 38.58, -107.50
- Great-circle km
- 2,934 km (sphere, for EU261)
- In the air IAH → PDX
- 4 h 3 min
- In the air PDX → IAH
- 3 h 39 min
- Clocks
- Portland is 2 h behind Houston
The estimate for a route without real times is 4 h 15 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 31,741 |
| Sep 2025 | 24,021 |
| Oct 2025 | 32,467 |
| Nov 2025 | 25,504 |
| Dec 2025 | 30,791 |
| Jan 2026 | 24,723 |
| Feb 2026 | 22,120 |
| Mar 2026 | 24,872 |
| Apr 2026 | 23,833 |
| May 2026 | 31,446 |
| Jun 2026 | 34,898 |
| Jul 2026 | 35,708 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 220 |
| Sep 2025 | 192 |
| Oct 2025 | 233 |
| Nov 2025 | 180 |
| Dec 2025 | 212 |
| Jan 2026 | 186 |
| Feb 2026 | 160 |
| Mar 2026 | 178 |
| Apr 2026 | 179 |
| May 2026 | 237 |
| Jun 2026 | 231 |
| Jul 2026 | 233 |
Airlines flying IAH–PDX nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| UAUnited Air Lines | 33 | 73% |
| ASAlaska Airlines | 13 | 27% |
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
- Boeing B737 Max 900 · 676 flights
- Boeing 737-900ER · 611 flights
- Boeing B737 Max 800 · 358 flights
- Boeing 737-900 · 274 flights
- Airbus Industrie A320-100/200 · 221 flights
- Boeing 737-800 · 182 flights
- Boeing 737-700/700LR/Max 7 · 72 flights
- Airbus Industrie A319 · 44 flights
Also carried: 114 tonnes of freight and 338 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 83%
- Arrived within 15 min of schedule
- Average delay
- 12 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.5%
- Flights counted
- 2,454
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| UAUnited Air Lines | 84.1% | 12 min |
| ASAlaska Airlines | 80.3% | 11 min |
Delay minutes by cause: airline 30% · aircraft arriving late 42% · air traffic system 22% · weather 6% · security 1%.
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
- $275
- One way, all cabins
- Average over a year
- $268
- Q2 2025 – Q1 2026
- Largest airline
- United Air Lines
- 54% of passengers · $299
- Lowest-fare airline
- Alaska Airlines
- 40% of passengers · $237
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $276 · Q3 2025 $259 · Q4 2025 $263 · Q1 2026 $275).
Fare outlook, Q1 2027: about $281, likely $243–$320
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 5.1%). 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: Q4, typically 3% 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: 2,934 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 Portland
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 |