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Route · ORD → ANC · 2020–2025 BTS data

Chicago to Anchorage

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), ORD to ANC (Chicago to Anchorage) ranks #3096 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

77.4%
On-time
-1.6 pts
vs US avg
66 min
Delay when late
3,542
Flights
#3096 of 4927
Corpus placement

Cancelled

0.5%

Best Month

May 2025 90%

Worst Month

Aug 2023 61%

Distance

2,846 mi

Carriers

8

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Oct 2025 47 13 0 1 AA,AS,UA
Sep 2025 101 23 0 0 UA,AA,AS
Aug 2025 143 28 1 0 AA,UA,AS
Jul 2025 155 44 1 0 AA,AS,UA
Jun 2025 138 36 0 0 AA,AS,UA
May 2025 108 11 0 1 AA,AS,UA
Apr 2025 37 11 0 0 UA,AS
Oct 2024 36 11 0 0 UA,AS
Sep 2024 86 11 0 0 UA,AA,AS
Aug 2024 143 32 0 2 AA,AS,UA
Jul 2024 155 39 2 1 AA,AS,UA
Jun 2024 150 28 0 0 AA,AS,UA
May 2024 135 49 1 0 AA,AS,UA
Apr 2024 41 11 0 0 AS,UA
Oct 2023 45 3 0 0 AS,UA
Sep 2023 73 18 1 0 AA,AS,UA
Aug 2023 155 60 0 0 AA,AS,UA
Jul 2023 153 41 0 0 AA,AS,UA
Jun 2023 135 39 1 0 AA,AS,UA
May 2023 89 23 0 1 AA,AS,UA
Apr 2023 56 9 2 1 UA,AS
Dec 2022 33 12 0 0 AS,UA
Sep 2022 75 12 1 1 UA,AA,AS
Aug 2022 141 31 1 0 AA,AS,UA

ORD–ANC seasonal on-time pattern

Best: September (82.1%) · weakest: December (63.6%)

60%65%70%75%80%85% AprMayJunJulAugSepOctDec 63.6%

Strongest calendar month

September

82.1% on-time · ~76 flights/mo

Busiest calendar month

June

~134 flights/mo avg

Weakest calendar month

December

63.6% on-time · ~33 flights/mo

Cancellation Rate

0.5%

11 of 2,430 flights

Diversion Rate

0.3%

8 of 2,430 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

ORD - Chicago

Full on-time, delay-cause, and seasonal performance for Chicago, IL.

ORD on-time profile

ANC - Anchorage

Full on-time, delay-cause, and seasonal performance for Anchorage, AK.

ANC on-time profile

Compare the two airports

See ORD and ANC side by side on delays, cancellations, and reliability.

Compare ORD vs ANC

Origin-hub reliability standing

Mid-pack among ORD departures

From ORD, this corridor sits with 147 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (10 at ≥85%) and not the softest ( 11 below 75%). Destination: Anchorage · fleet on-time rank #4006 of 4927.

What the Data Says About ORD to ANC

The Chicago to Anchorage corridor (ORD to ANC) posts a 77.4% on-time rate on the lower edge of the average band, based on 3,542 tracked flights. Late flights run 66.4 minutes behind on average. 8 carriers cover the 2,846-mile route; over the last 24 months, 11 of 2,430 flights were cancelled (0.5%) and 0.3% diverted.

The monthly split is wide on this route: May 2025 posted the strongest performance at 90% on-time, while Aug 2023 came in at just 61% - a 29-point swing worth factoring into travel timing.

On the multi-year calendar, ORD–ANC peaks in September at 82.1% on-time while June carries the heaviest traffic (~134 flights per month) ; the softest month is December at 63.6%, a 18.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does ORD to ANC rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, ORD to ANC ranks #3096 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from ORD to ANC? ▼
Flights from Chicago to Anchorage have a 77.4% on-time rate based on 3,542 flights. The average delay is 66.4 minutes. The best recent month was May 2025 with 90% on-time.
What is the cancellation rate for ORD to ANC? ▼
Over the last 24 months, 0.5% of flights on this route were cancelled (11 of 2,430 flights) and 0.3% were diverted.
How far is the flight from ORD to ANC? ▼
The flight distance from Chicago (ORD) to Anchorage (ANC) is approximately 2,846 miles. This route is served by 8 carriers.
When is the best time to fly from ORD to ANC? ▼
The best recent month for on-time performance was May 2025 (90% on-time). The worst was Aug 2023 (61% on-time). Consider booking during months with historically better performance.

Airports on this route

ORD Airport

Chicago
ANC Airport

Anchorage
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using ORD–ANC data

ORD–ANC is mid-pack at 77.4% on-time; month and carrier mix move more than the corridor headline.

  • Compare ORD and ANC airport profiles: delay causes and top routes differ even on the same corridor. ORD airport
  • If your dates flex, September (82.1% on-time) beats December (63.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 77.4% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.