ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
PDX → SJC
Portland to San Jose: 1,611 nonstop flights a year
On time (12 months)
82%
Cancelled
0.1%
avg delay 11 min
Best time to leave
Before 9 AM
96% on time vs 55% 6 to 9 PM
Most reliable airline
Alaska
90% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Most reliable nonstop flights
Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.
#1 · Alaska 549
9:00 AM → 10:54 AM1h 54m nonstop
Local times, typical schedule. Last flown 2026-03-17.
94%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 12 min
- Arrived on time 97% of the time (29 flights, Jun 2025 to May 2026).
- Short track record (29 flights), so its score leans on the airline's record at this hour.
Limited track record · 29 flights
Find Alaska 549 fares Opens this date on Aviasales#2 · Alaska 1350
9:07 PM → 10:59 PM1h 52m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (19 flights, Jun 2025 to May 2026).
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find Alaska 1350 fares Opens this date on Aviasales#3 · Southwest 3715
5:20 AM → 7:05 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 0 min
- Arrived on time 100% of the time (39 flights, Jun 2025 to May 2026).
- Never cancelled in 39 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 55%).
- Short track record (39 flights), so its score leans on the airline's record at this hour.
Limited track record · 39 flights
Find Southwest 3715 fares Opens this date on Aviasales#4 · Southwest 1933
5:50 AM → 7:35 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-04-06.
90%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 97% of the time (33 flights, Jun 2025 to May 2026).
- Never cancelled in 33 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 55%).
- Short track record (33 flights), so its score leans on the airline's record at this hour.
Limited track record · 33 flights
Find Southwest 1933 fares Opens this date on Aviasales#5 · SkyWest 3289 · sold as United Express, Delta Connection, American Eagle or Alaska
2:35 PM → 4:32 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 3422; its record covers all of them.
89%
chance on time
- On time (history)
- 90%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 90% of the time (50 flights, Jun 2025 to May 2026).
- Never cancelled in 50 scheduled flights.
- Short track record (50 flights), so its score leans on the airline's record at this hour.
Limited track record · 50 flights
Find 2:35 PM flight fares Opens this date on Aviasales#6 · SkyWest 3344 · sold as United Express, Delta Connection, American Eagle or Alaska
9:07 PM → 10:59 PM1h 52m nonstop
Local times, typical schedule. Last flown 2026-05-11.
88%
chance on time
- On time (history)
- 92%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 92% of the time (12 flights, Jun 2025 to May 2026).
- Short track record (12 flights), so its score leans on the airline's record at this hour.
Limited track record · 12 flights
Find 9:07 PM flight fares Opens this date on Aviasales#7 · Southwest 266
7:40 AM → 9:25 AM1h 45m nonstop
Local times, typical schedule. Last flown 2026-05-27.
88%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 11 min
- Arrived on time 94% of the time (16 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 96% on time; 6 to 9 PM: 55%).
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 266 fares Opens this date on Aviasales#8 · SkyWest 3378 · sold as United Express, Delta Connection, American Eagle or Alaska
5:32 PM → 7:29 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-11. Same departure also flew as SkyWest 3400; its record covers all of them.
88%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 91% of the time (78 flights, Jun 2025 to May 2026).
- Never cancelled in 78 scheduled flights.
Moderate track record · 78 flights
Find 5:32 PM flight fares Opens this date on Aviasales#9 · SkyWest 3379 · sold as United Express, Delta Connection, American Eagle or Alaska
2:59 PM → 4:58 PM1h 59m nonstop
Local times, typical schedule. Last flown 2026-04-21.
87%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 86% of the time (259 flights, Jun 2025 to May 2026).
- Never cancelled in 260 scheduled flights.
Strong track record · 259 flights
Find 2:59 PM flight fares Opens this date on Aviasales#10 · Southwest 4048
5:25 PM → 7:15 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-04-05.
70%
chance on time
- On time (history)
- 69%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 69% of the time (13 flights, Jun 2025 to May 2026).
- Short track record (13 flights), so its score leans on the airline's record at this hour.
Limited track record · 13 flights
Find Southwest 4048 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines90%
113 flights · 96% on time as flown · 0.1% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)87%
499 flights · 87% on time as flown · 0.0% cancel
- Southwest Airlines78%
999 flights · 77% on time as flown · 0.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM96%
389 flights · avg delay 4 min
- 9 AM to noon87%
208 flights · avg delay 9 min
- Noon to 3 PM84%
429 flights · avg delay 9 min
- 3 to 6 PM74%
261 flights · avg delay 12 min
- 6 to 9 PM55%
233 flights · avg delay 27 min
- After 9 PM85%
91 flights · avg delay 8 min
Best day: Saturday (91%). Worst: Friday (80%).
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure