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.
SJC → PDX
San Jose to Portland: 1,596 nonstop flights a year
On time (12 months)
85%
Cancelled
0.0%
avg delay 9 min
Best time to leave
Before 9 AM
95% on time vs 62% 3 to 6 PM
Most reliable airline
SkyWest
93% chance on time
Lowest nonstop fare seen in the next two months: $98 (Southwest 727 on 2026-10-24). 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 · SkyWest 3070 · sold as United Express, Delta Connection, American Eagle or Alaska
7:30 AM → 9:27 AM1h 57m nonstop
Local times, typical schedule. Last flown 2026-05-12.
97%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (21 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 3 to 6 PM: 62%).
- Short track record (21 flights), so its score leans on the airline's record at this hour.
Limited track record · 21 flights
Find 7:30 AM flight fares Opens this date on Aviasales#2 · Alaska 550
7:40 AM → 9:32 AM1h 52m nonstop
Local times, typical schedule. Last flown 2026-03-17.
95%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 97% of the time (29 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 3 to 6 PM: 62%).
- Short track record (29 flights), so its score leans on the airline's record at this hour.
Limited track record · 29 flights
Find Alaska 550 fares Opens this date on Aviasales#3 · Alaska 1341
8:00 AM → 9:50 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31.
95%
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).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 3 to 6 PM: 62%).
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find Alaska 1341 fares Opens this date on Aviasales#4 · SkyWest 3379 · sold as United Express, Delta Connection, American Eagle or Alaska
11:30 AM → 1:24 PM1h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as SkyWest 3004; its record covers all of them.
93%
chance on time
- On time (history)
- 93%
- Cancelled
- 0.0%
- Avg arrival delay
- 8 min
- Arrived on time 93% of the time (152 flights, Jun 2025 to May 2026).
- Never cancelled in 152 scheduled flights.
Moderate track record · 152 flights
Find 11:30 AM flight fares Opens this date on Aviasales#5 · SkyWest 3313 · sold as United Express, Delta Connection, American Eagle or Alaska
6:18 PM → 8:15 PM1h 57m nonstop
Local times, typical schedule. Last flown 2026-04-21.
92%
chance on time
- On time (history)
- 94%
- Cancelled
- 0.0%
- Avg arrival delay
- 5 min
- Arrived on time 94% of the time (130 flights, Jun 2025 to May 2026).
- Never cancelled in 130 scheduled flights.
Moderate track record · 130 flights
Find 6:18 PM flight fares Opens this date on Aviasales#6 · Southwest 1891
6:00 AM → 7:55 AM1h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
92%
chance on time
- On time (history)
- 97%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 97% 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: 95% on time; 3 to 6 PM: 62%).
- Short track record (39 flights), so its score leans on the airline's record at this hour.
Limited track record · 39 flights
Find Southwest 1891 fares Opens this date on Aviasales#7 · Southwest 1656
9:55 AM → 11:45 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-27.
90%
chance on time
- On time (history)
- 100%
- Cancelled
- 0.0%
- Avg arrival delay
- 1 min
- Arrived on time 100% of the time (16 flights, Jun 2025 to May 2026).
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 1656 fares Opens this date on Aviasales#8 · Southwest 1484
8:25 AM → 10:15 AM1h 50m nonstop
Local times, typical schedule. Last flown 2026-04-06.
87%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 3 min
- Arrived on time 91% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 95% on time; 3 to 6 PM: 62%).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 1484 fares Opens this date on Aviasales#9 · Southwest 2461
8:45 PM → 10:35 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Southwest 985; its record covers all of them.
70%
chance on time
- On time (history)
- 71%
- Cancelled
- 0.0%
- Avg arrival delay
- 15 min
- Arrived on time 71% of the time (63 flights, Jun 2025 to May 2026).
- Never cancelled in 63 scheduled flights.
- 71% of its delay minutes came from the plane arriving late from an earlier flight.
Moderate track record · 63 flights
Find Southwest 2461 fares Opens this date on Aviasales#10 · Southwest 826
6:55 PM → 8:45 PM1h 50m nonstop
Local times, typical schedule. Last flown 2026-05-27.
70%
chance on time
- On time (history)
- 69%
- Cancelled
- 0.0%
- Avg arrival delay
- 22 min
- Arrived on time 69% of the time (16 flights, Jun 2025 to May 2026).
- 68% of its delay minutes came from the plane arriving late from an earlier flight.
- Short track record (16 flights), so its score leans on the airline's record at this hour.
Limited track record · 16 flights
Find Southwest 826 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)93%
484 flights · 94% on time as flown · 0.0% cancel
- Alaska Airlines90%
113 flights · 94% on time as flown · 0.0% cancel
- Southwest Airlines80%
999 flights · 80% on time as flown · 0.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM95%
337 flights · avg delay 3 min
- 9 AM to noon92%
548 flights · avg delay 6 min
- Noon to 3 PM89%
171 flights · avg delay 6 min
- 3 to 6 PM62%
135 flights · avg delay 19 min
- 6 to 9 PM76%
303 flights · avg delay 16 min
- After 9 PM65%
102 flights · avg delay 21 min
Best day: Wednesday (90%). Worst: Sunday (82%).
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