Washington (BWI) – Portland (PWM)
- Distance
- 727 km
- 452 mi · 393 nm
- Flight time
- 1 h 23 min / 1 h 37 min
- Average gate to gate: BWI → PWM / back
- Time difference
- none
- CO2 per passenger
- 91 kg
- One way, economy, incl. RF (54 kg CO2 only)
- Passengers / year
- 333,780
- Aug 2025 – Jul 2026 · −0.0%
- Flights / week
- 51
- Both directions, average
- Seats filled
- 80%
- 416,735 seats a year
- Airlines nonstop
- 1
- WN
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 BWI
- 45°
- Heading from PWM
- 229°
- Halfway point
- 41.46, -73.60
- Great-circle km
- 726 km (sphere, for EU261)
- In the air BWI → PWM
- 1 h 5 min
- In the air PWM → BWI
- 1 h 21 min
- Clocks
- Same time in both
The estimate for a route without real times is 1 h 40 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 36,452 |
| Sep 2025 | 30,610 |
| Oct 2025 | 30,336 |
| Nov 2025 | 25,246 |
| Dec 2025 | 27,581 |
| Jan 2026 | 18,499 |
| Feb 2026 | 21,154 |
| Mar 2026 | 27,092 |
| Apr 2026 | 24,617 |
| May 2026 | 27,440 |
| Jun 2026 | 30,726 |
| Jul 2026 | 34,027 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 269 |
| Sep 2025 | 242 |
| Oct 2025 | 246 |
| Nov 2025 | 215 |
| Dec 2025 | 215 |
| Jan 2026 | 186 |
| Feb 2026 | 179 |
| Mar 2026 | 207 |
| Apr 2026 | 206 |
| May 2026 | 212 |
| Jun 2026 | 235 |
| Jul 2026 | 238 |
Airlines flying BWI–PWM nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| WNSouthwest Airlines | 51 | 100% |
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 737-700/700LR/Max 7 · 1,359 flights
- Boeing B737 Max 800 · 657 flights
- Boeing 737-800 · 633 flights
- Airbus Industrie A319 · 1 flight
Punctuality
- On time
- 81.8%
- Arrived within 15 min of schedule
- Average delay
- 10 min
- Late arrivals count, early ones as 0
- Cancelled
- 1.2%
- Flights counted
- 2,684
- Aug 2025 – Jul 2026
Delay minutes by cause: airline 33% · aircraft arriving late 41% · air traffic system 18% · weather 7% · 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
- $252
- One way, all cabins
- Average over a year
- $243
- Q2 2025 – Q1 2026
- Largest airline
- Southwest Airlines
- 99% of passengers · $251
- Lowest-fare airline
- Southwest Airlines
- 99% of passengers · $251
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $232 · Q3 2025 $247 · Q4 2025 $243 · Q1 2026 $252).
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: 726 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 Washington and Portland
Kilometres. Linked numbers have a page of their own. All Washington airports