Route on-time record
LAX to PDX: most on-time flights and the best time to fly
Los Angeles (Los Angeles International Airport) to Portland (Portland International Airport). 4,450 nonstop flights in Jun 2025 to May 2026, 86% arrived within 15 minutes and 0.9% were cancelled. The most reliable flight number was Alaska 668 at 7:00 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
LAX → PDX
Los Angeles to Portland: 4,450 nonstop flights a year
On time (12 months)
86%
Cancelled
0.9%
avg delay 10 min
Best time to leave
Before 9 AM
91% on time vs 80% 6 to 9 PM
Most reliable airline
Alaska
89% chance on time
Lowest nonstop fare seen in the next two months: $160 (Frontier 4499 on 2026-10-29). 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 668
7:00 AM → 9:35 AM2h 35m nonstop
Local times, typical schedule. Last flown 2026-05-31.
94%
chance on time
- On time (history)
- 95%
- Cancelled
- 0.5%
- Avg arrival delay
- 4 min
- Arrived on time 95% of the time (215 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 80%).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Strong track record · 215 flights
Find Alaska 668 fares Opens this date on Aviasales#2 · Alaska 476
9:00 AM → 11:33 AM2h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
- On time (history)
- 95%
- Cancelled
- 0.0%
- Avg arrival delay
- 4 min
- Arrived on time 95% of the time (19 flights, Jun 2025 to May 2026).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find Alaska 476 fares Opens this date on Aviasales#3 · Frontier 4499
9:20 AM → 11:50 AM2h 32m nonstop
Local times, typical schedule. Last flown 2026-05-31.
89%
chance on time
- On time (history)
- 95%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 95% of the time (44 flights, Jun 2025 to May 2026).
- Never cancelled in 44 scheduled flights.
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
- Short track record (44 flights), so its score leans on the airline's record at this hour.
Limited track record · 44 flights
Find Frontier 4499 fares Opens this date on Aviasales#4 · Delta 2975
7:35 AM → 10:01 AM2h 24m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.9%
- Avg arrival delay
- 7 min
- Arrived on time 89% of the time (356 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 80%).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Strong track record · 356 flights
Find Delta 2975 fares Opens this date on Aviasales#5 · Delta 2766
9:45 AM → 12:14 PM2h 26m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.8%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (359 flights, Jun 2025 to May 2026).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Strong track record · 359 flights
Find Delta 2766 fares Opens this date on Aviasales#6 · Alaska 1315
2:08 PM → 4:30 PM2h 33m nonstop
Local times, typical schedule. Last flown 2026-05-31.
88%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.4%
- Avg arrival delay
- 7 min
- Arrived on time 89% of the time (346 flights, Jun 2025 to May 2026).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Strong track record · 346 flights
Find Alaska 1315 fares Opens this date on Aviasales#7 · Alaska 207
9:22 PM → 11:58 PM2h 34m nonstop
Local times, typical schedule. Last flown 2026-05-31.
87%
chance on time
- On time (history)
- 89%
- Cancelled
- 1.1%
- Avg arrival delay
- 9 min
- Arrived on time 89% of the time (93 flights, Jun 2025 to May 2026).
- Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 93 flights
Find Alaska 207 fares Opens this date on Aviasales#8 · Alaska 595
6:05 PM → 8:35 PM2h 30m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as Alaska 1397; its record covers all of them.
87%
chance on time
- On time (history)
- 88%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 88% of the time (346 flights, Jun 2025 to May 2026).
- Never cancelled in 346 scheduled flights.
- Leaves in this route's least on-time window (6 to 9 PM: 80% on time; Before 9 AM: 91%).
- Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 346 flights
Find Alaska 595 fares Opens this date on Aviasales#9 · Delta 2459
4:30 PM → 6:58 PM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 86%
- Cancelled
- 0.3%
- Avg arrival delay
- 16 min
- Arrived on time 86% of the time (293 flights, Jun 2025 to May 2026).
- Departs inside LAX's trouble window: 53% of its 15 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 293 flights
Find Delta 2459 fares Opens this date on Aviasales#10 · Delta 2551
2:20 PM → 4:43 PM2h 23m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.6%
- Avg arrival delay
- 11 min
- Arrived on time 87% of the time (347 flights, Jun 2025 to May 2026).
- Departs outside LAX's trouble window (4 PM to 10 PM, when 53% of its 15 ground stops and delay programs started).
Strong track record · 347 flights
Find Delta 2551 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Alaska Airlines89%
1,942 flights · 90% on time as flown · 1.1% cancel
- Delta Air Lines86%
1,691 flights · 86% on time as flown · 0.9% cancel
- Frontier Airlines81%
219 flights · 82% on time as flown · 1.5% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)75%
598 flights · 75% on time as flown · 0.5% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM91%
792 flights · avg delay 6 min
- 9 AM to noon88%
1,034 flights · avg delay 9 min
- Noon to 3 PM86%
894 flights · avg delay 11 min
- 3 to 6 PM88%
436 flights · avg delay 10 min
- 6 to 9 PM80%
1,090 flights · avg delay 15 min
- After 9 PM83%
204 flights · avg delay 9 min
Best day: Tuesday (90%). Worst: Friday (84%).
Smarter routing
Nearby airports that run more on time
SNA → PDX 92% chance on time
John Wayne Orange County International Airport to Portland International Airport · 1,543 flights a year · 36 mi from your airports · yours: 85%
BUR → PDX 89% chance on time
Hollywood Burbank/Bob Hope Airport to Portland International Airport · 985 flights a year · 18 mi from your airports · yours: 85%
ONT → PDX 88% chance on time
Ontario International Airport to Portland International Airport · 522 flights a year · 47 mi from your airports · yours: 85%
On time by month
All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.
What delays this route
- Airline (crew, maintenance, boarding)58%
- Late-arriving aircraft35%
- Air traffic control and airport volume5%
- Severe weather1%
Share of delay minutes by the cause airlines report to the US DOT.
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
LAX to PDX questions
- What time of day is best to fly LAX to PDX?
- Before 9 AM: 91% of flights arrived on time, against 80% for departures 6 to 9 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
- Which airline is most on time from LAX to PDX?
- Alaska, with a season-adjusted 89% chance of operating and arriving on time over 1,942 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
- What is the worst month for delays on LAX to PDX?
- June (83% on time); the best was October (90%), averaged over Jun 2023 to May 2026.
- Is this a prediction for my flight?
- No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.
More routes from LAX
- PDX to LAX (return)
- LAX to SFO 68%
- LAX to JFK 79%
- LAX to LAS 77%
- LAX to DEN 82%
- LAX to PHX 81%
- LAX to SEA 85%
- LAX to ORD 77%
- LAX to DFW 75%
- LAX to SMF 85%
- LAX to HNL 77%
- LAX to IAH 84%
- LAX to ATL 76%
Live status: FAA delays and ground stops