Route Reliability
Salt Lake City → Portland
SLC–PDX · 630 miles · Salt Lake City International Airport to Portland International Airport
- 88%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.0%
- Cancelled
- 2,575
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.Alaska Airlines90%824 flights
- 2.Delta Air Lines88%1,699 flights
Not enough history to rank: Frontier Airlines (52 flights). We rank airlines only after 100 flights on the route.
What the data says
Morning-you made the right choice.
SLC–PDX flights departing between 6–9 AM arrived on time 91% of the time, versus 77% between 6–9 PM.
Sunday scaries are real for this one.
SLC–PDX flights arrived on time 92% of the time on Tuesdays. On Sundays: 85%.
Not much between Alaska Airlines and Delta Air Lines.
On this route they all land within 88% to 90% on time. Pick on schedule and price.
Ticking up lately.
SLC–PDX flights arrived on time 91% of the time over the last three months in the data, compared with 87% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon87%(392 flights)
- Tue92%(356 flights)
- Wed91%(353 flights)
- Thu87%(365 flights)
- Fri87%(393 flights)
- Sat90%(318 flights)
- Sun85%(373 flights)
- 6–9 AM91%(645 flights)
- 9 AM–12 PM89%(410 flights)
- 12–3 PM89%(101 flights)
- 3–6 PM89%(761 flights)
- 6–9 PM77%(269 flights)
- 9 PM–12 AM89%(364 flights)
Jun 87% → May 91% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 229 |
| July 2025 | 81% | 246 |
| August 2025 | 89% | 243 |
| September 2025 | 91% | 232 |
| October 2025 | 91% | 221 |
| November 2025 | 88% | 198 |
| December 2025 | 84% | 199 |
| January 2026 | 87% | 174 |
| February 2026 | 90% | 170 |
| March 2026 | 90% | 205 |
| April 2026 | 91% | 212 |
| May 2026 | 91% | 221 |
Keep nerding
Based on 2,575 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.