LAX → PDX Flight Reliability

Right now

Origin · LAXNo disruption reported

Aviation weather is not currently a factor.

Updated 09:53 UTC

Los Angeles airport profile →

Destination · PDXNo disruption reported

Aviation weather is not currently a factor.

Updated 09:53 UTC

Portland airport profile →

Route reliability

July 2023 – July 2026

Route Reliability Score

83/ 100Strong

Better than 92% of comparable major US routes (4,598 compared)

Calculated from 13,586 flights. How this is calculated

On-time arrivals

86.9%

11,702 of 13,472

Cancellation rate

0.81%

110 cancelled

Median arrival delay

-11 min

Average -2.0 min

Severe delays

4.7%

60+ minutes late

Delay when late

64 min

Average, when 15+ min late

Flights analyzed

13,586

4 carriers

LAX → PDX arrives on time 86.9% of the time; the return trip, PDX → LAX, arrives on time 87.8% of the time.

LAX → PDX spends 23.4 minutes on the ground on an 834-mile trip: 18.1 minutes from pushback to wheels-up at LAX and 5.4 minutes from touchdown to gate at PDX.

Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – July 2026

What stands out

This route holds up about the same all year, a steadier seasonal pattern than 98% of 3,357 comparable routes.

89.9% on time in its best month (October) against 81.6% in its worst (June).

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Ranked against every other route with the same kind of figure and at least 3,357 in the comparison.

Why LAX → PDX flights are cancelled

July 2023 – July 2026

LAX → PDX cancelled 110 of 13,586 scheduled flights — about 1 in every 124. The reason filed most often was the airline, 78.2% of the cancellations coded on this route — about 1 in every 158 scheduled flights.

Share of cancellations

Airline78.2%

Weather20.9%

Air traffic0.9%

Security0.0%

Of 110 cancelled departures carrying a reason code.

What each reason means

The airline1 in 158

Crew, maintenance, aircraft cleaning, baggage or fueling: what BTS counts as within the carrier’s own control.

86 cancellations, 78.2% of the total.

Extreme weather1 in 591

Conditions the carrier judged severe enough to stop the flight: a blizzard, a hurricane, a line of thunderstorms.

23 cancellations, 20.9% of the total.

The air traffic system1 in 13,586

Airport capacity, air traffic control flow programs, heavy traffic and ordinary bad weather. A system decision, not the airline’s.

1 cancellation, 0.9% of the total.

Security—

A terminal evacuation, a security breach, screening equipment failure, or screening queues over 29 minutes.

0 cancellations, 0.0% of the total.

Reason codes are the operating airline’s own filing with US DOT, not an independent finding of fault. Ordinary bad weather is filed under air traffic, so weather’s full share is larger than its bar.

110 coded cancellations were recorded on LAX → PDX; the section appears from 50.

When it goes wrong

July 2023 – July 2026

One arrival in ten is worse than

23 min late

against a median of 11 min early

Arrived an hour or more late4.7%

Typical delay when late64 min

Cancelled0.81%

Landed somewhere else0.03%

Percentiles over 13,586 operations; cancelled and diverted flights are counted separately.

Will your connection be tight enough?

Layovers at PDX after arriving from LAX.

Connection buffer and chance of missing by layover length, LAX → PDX arrivals
Connection time	Chance of missing	Reads as
30 min	25%	High risk
45 min	13%	Some risk
60 min	8.2%	Some risk
90 min	4.7%	Low risk
120 min	2.8%	Low risk

This is one leg of a connection. Gate changes and the next flight's own schedule matter too. And a connection can fail before delay is even the question — this route cancels 0.81% of the time and diverts 0.03% of the time, which a late arrival never shows up in.

Chance of missing is the share of 13,472 arrivals on this route that landed later than the connection time less 30 minutes to reach the next gate.

The worst tenth of arrivals on this route land at least 23 minutes late (90th-percentile gate arrival delay), over 13,586 operations.

Any other layover length: connection checker.

Best time to fly

LAX → PDX flights departing 5–9 AM arrived on time 92.6% of the time, against 78.9% for 9 PM–5 AM departures, a gap of 13.7 percentage points.

By day and hour

On-time arrival rate for each weekday and scheduled departure hour, in local time at the departure airport (LAX).

Hour of departure matters more than day of the week: hourly averages sit a typical 4.3 points from the route-wide rate, weekday averages 2.0 points.

On-time arrival rate for LAX to PDX by weekday and scheduled departure hour, local time. Each button reads out one slot.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM
7 AM–8 AM
8 AM–9 AM
9 AM–10 AM
10 AM–11 AM
11 AM–12 PM
12 PM–1 PM
1 PM–2 PM
2 PM–3 PM
3 PM–4 PM
4 PM–5 PM
5 PM–6 PM
6 PM–7 PM
7 PM–8 PM
8 PM–9 PM
9 PM–10 PM

On-time rate, % · stronger color, fewer on time

72–75
76–79
80–83
84–87
88–91
92–95
96–99

Fewer than 120 flights, not scored

Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · On time is arrival within 15 minutes of schedule. Cells round to whole percentages; the table shows one decimal.

No slot is named best or worst: too few reach 500 flights.

View as tableHide table

On-time arrival rate (%) with flights beneath, by scheduled departure hour and weekday for LAX to PDX. A dash means fewer than 120 flights, which are not scored.
Hour	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
6 AM–7 AM	94.1% on time171 flights	94.1% on time155 flights	96.1% on time155 flights	95.2% on time169 flights	93.4% on time168 flights	114 flights, too few to score	96.0% on time153 flights
7 AM–8 AM	93.5% on time159 flights	94.6% on time150 flights	91.9% on time150 flights	94.3% on time159 flights	92.3% on time158 flights	86.7% on time166 flights	90.1% on time156 flights
8 AM–9 AM	53 flights, too few to score	43 flights, too few to score	42 flights, too few to score	54 flights, too few to score	54 flights, too few to score	42 flights, too few to score	58 flights, too few to score
9 AM–10 AM	88.7% on time277 flights	89.7% on time226 flights	91.5% on time230 flights	90.5% on time277 flights	87.0% on time267 flights	86.6% on time202 flights	90.5% on time244 flights
10 AM–11 AM	85 flights, too few to score	75 flights, too few to score	76 flights, too few to score	84 flights, too few to score	88 flights, too few to score	90 flights, too few to score	92 flights, too few to score
11 AM–12 PM	87 flights, too few to score	81 flights, too few to score	78 flights, too few to score	90 flights, too few to score	86 flights, too few to score	59 flights, too few to score	76 flights, too few to score
12 PM–1 PM	75 flights, too few to score	73 flights, too few to score	71 flights, too few to score	76 flights, too few to score	57 flights, too few to score	16 flights, too few to score	51 flights, too few to score
1 PM–2 PM	89.6% on time156 flights	89.5% on time152 flights	87.9% on time151 flights	89.7% on time157 flights	84.6% on time160 flights	90.3% on time176 flights	86.3% on time155 flights
2 PM–3 PM	86.5% on time142 flights	91.4% on time129 flights	87.0% on time131 flights	87.7% on time139 flights	81.8% on time137 flights	87.5% on time121 flights	85.6% on time142 flights
3 PM–4 PM	43 flights, too few to score	32 flights, too few to score	31 flights, too few to score	45 flights, too few to score	39 flights, too few to score	42 flights, too few to score	44 flights, too few to score
4 PM–5 PM	92.2% on time181 flights	89.6% on time144 flights	88.2% on time144 flights	87.4% on time175 flights	86.2% on time176 flights	59 flights, too few to score	84.7% on time172 flights
5 PM–6 PM	92 flights, too few to score	101 flights, too few to score	95 flights, too few to score	86 flights, too few to score	91 flights, too few to score	105 flights, too few to score	100 flights, too few to score
6 PM–7 PM	85.4% on time157 flights	89.5% on time124 flights	92.8% on time125 flights	83.0% on time148 flights	72.7% on time161 flights	90.9% on time200 flights	76.4% on time157 flights
7 PM–8 PM	84.6% on time136 flights	88.6% on time126 flights	86.1% on time137 flights	78.2% on time142 flights	77.4% on time137 flights	83.8% on time150 flights	77.1% on time144 flights
8 PM–9 PM	83.6% on time167 flights	84.6% on time123 flights	81.6% on time136 flights	75.4% on time169 flights	73.9% on time167 flights	51 flights, too few to score	72.5% on time162 flights
9 PM–10 PM	80.5% on time125 flights	48 flights, too few to score	48 flights, too few to score	77.6% on time127 flights	79.7% on time133 flights	89 flights, too few to score	75.2% on time134 flights

By departure window

5–9 AM92.6%

9 AM–12 PM88.0%

12–3 PM87.6%

3–6 PM87.5%

6–9 PM81.7%

9 PM–5 AM78.9%

By departure hour

12 AM

3 AM

6 AM

9 AM

12 PM

3 PM

6 PM

9 PM

Why LAX → PDX runs late

July 2023 – July 2026

The airline53.8%

crew, maintenance, boarding and fueling, all within the carrier’s control

Late-arriving aircraft35.7%

the inbound aircraft was late, so this flight started late

Air traffic control8.9%

airspace and airport capacity, including weather-driven flow control

Weather1.5%

weather severe enough to stop this flight specifically

Security0.1%

screening or terminal security incidents

Share of the delay minutes US DOT attributed to each cause for LAX → PDX. Only delays of 15 minutes or more are attributed.

How this route holds up in bad weather

July 2023 – July 2026

The harder-hit end is PDX, where the flight lands. Its figure counts departures from PDX, so it says more about how that airport copes than about this route. Bad weather cancels 2.2 times the normal rate at PDX against 1.3 times at LAX. Cancelled in bad weather against normal hours: LAX 1.0% against 0.8%, PDX 1.7% against 0.8%. Flights that did leave LAX in bad weather arrived on time 78.9% of the time, against 81.4% in normal hours.

Bad weather and normal hours at the airports

Scheduled departures, July 2023 – July 2026

Departures from LAX and PDX in hours of bad weather and in normal hours
Departures from	LAX	PDX
Cancelled in bad weather	1.0%	1.7%
Cancelled in normal hours	0.8%	0.8%
Arrived on time, bad weather	78.9%	84.6%
Arrived on time, normal hours	81.4%	83.0%
Departures in bad weather	60,639	11,286

Frontier Airlines (3.1% cancelled against 1.0% for the other carriers at LAX) cancelled more departures from LAX in bad weather than the other carriers there did in the same months. None of the route’s other carriers was clearly better.

This route’s airlines in bad weather at LAX

All departures from LAX

Cancellation rates in bad weather at LAX for the airlines that fly LAX to PDX, against the other carriers at LAX in the same months
Airline	Bad-weather departures	Cancelled	Other carriers
Delta Air Lines	11,619	0.9%about level	1.0%
SkyWest Airlines	11,169	1.0%about level	1.0%
Alaska Airlines	2,917	1.1%about level	1.0%
Frontier Airlines	1,064	3.1%above the others	1.0%

These are airport figures, not route figures: every scheduled departure from LAX and PDX, to any destination, in hours the weather report called bad. The airline rows count each carrier’s departures from LAX on every route.

Weather source and limits. In full: LAX (airlines), PDX, What Weather Costs Each Airport, Who Cancels More When the Weather Turns, Airports That Change Places When Weather Turns.

Airlines on this route

Carriers with at least 200 flights, by the airline that operated each one.

Airlines on this route
Carrier	Flights	On time	Cancelled	Median delay	Severe
Alaska Airlines	5,726	88.4%	1.05%	-9 min	3.1%
Delta Air Lines	5,160	87.1%	0.66%	-13 min	5.6%
SkyWest Airlines	2,177	82.2%	0.37%	-8 min	7.1%
Frontier Airlines	395	84.6%	1.27%	-13 min	4.9%

Alaska Airlines flew 42.5% of the 13,458 flights listed.

Alaska Airlines arrived on time 6.2 percentage points more often than SkyWest Airlines on this route.

Flights on this route

Flight numbers with at least 600 operations here and still on the schedule.

Flights on this route
Flight	Scheduled	Operations	On time
AS1315 Alaska Airlines	12:00 PM	1,028	89.0%
DL2975 Delta Air Lines	7:00 AM	964	91.1%
DL2766 Delta Air Lines	9:30 AM	792	88.8%
DL2459 Delta Air Lines	4:30 PM	788	87.1%
DL2457 Delta Air Lines	8:20 PM	745	78.6%

DL2975 (7:00 AM) arrived on time 91.1% of the time, 12.5 points more often than DL2457 (8:20 PM) at 78.6%.

Weekly and seasonal patterns

By day of week

Mon87.7%

Tue89.6%

Wed89.1%

Thu86.5%

Fri84.0%

Sat87.2%

Sun84.5%

Tuesday is historically the most reliable day and Friday the least, a gap of 5.6 percentage points.

By month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

June is historically the weakest month and October the strongest, a spread of 8.3 percentage points.

Reliability over time

July 2023 – July 2026

24

25

26

Over the most recent 12 months (2025-08 to 2026-07), on-time arrivals averaged 86.3% against 87.7% in the 12 months before — broadly unchanged.

Data and methodology

Calculated by FlyerIntel from 13,586 LAX → PDX flight records from the US DOT Bureau of Transportation Statistics, covering July 2023 – July 2026. Late means 15 or more minutes past scheduled arrival; cancelled and diverted flights are left out of on-time rates.

Full methodology · Data sources · Report a problem

Analysis last recomputed September 26, 2026

LAX airport PDX airport Return direction PDX → LAX

LAX→PDX

Right now

Route reliability

What stands out

Why LAX → PDX flights are cancelled

Share of cancellations

What each reason means

When it goes wrong

Will your connection be tight enough?

Best time to fly

By day and hour

By departure window

By departure hour

Why LAX → PDX runs late

How this route holds up in bad weather

Bad weather and normal hours at the airports

This route’s airlines in bad weather at LAX

Airlines on this route

Flights on this route

Weekly and seasonal patterns

By day of week

By month

Reliability over time

Data and methodology