Route · EUG → SEA · 2020–2025 BTS data
Eugene to Seattle
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), EUG to SEA (Eugene to Seattle) ranks #935 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 89.2%
- On-time
- +10.2 pts
- vs US avg
- 78 min
- Delay when late
- 11,740
- Flights
- #935 of 4927
- Corpus placement
Cancelled
1.2%
Best Month
Apr 2024 93%
Worst Month
Jun 2025 72%
Distance
234 mi
Carriers
5
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 150 | 17 | 0 | 0 | AS,OO |
| Nov 2025 | 135 | 11 | 9 | 0 | OO,AS |
| Oct 2025 | 165 | 22 | 2 | 0 | AS,OO |
| Sep 2025 | 210 | 18 | 1 | 1 | OO,AS |
| Aug 2025 | 196 | 28 | 1 | 0 | OO,AS |
| Jul 2025 | 184 | 29 | 1 | 0 | AS,OO |
| Jun 2025 | 191 | 53 | 0 | 0 | AS,OO |
| May 2025 | 175 | 20 | 1 | 0 | AS,OO |
| Apr 2025 | 159 | 15 | 0 | 0 | OO,AS |
| Mar 2025 | 182 | 19 | 0 | 0 | AS,OO |
| Feb 2025 | 138 | 24 | 3 | 0 | AS,OO |
| Jan 2025 | 115 | 22 | 1 | 1 | AS,OO |
| Dec 2024 | 109 | 21 | 0 | 0 | AS,OO |
| Nov 2024 | 108 | 9 | 0 | 0 | OO,AS |
| Oct 2024 | 114 | 9 | 0 | 0 | AS,OO |
| Sep 2024 | 109 | 18 | 0 | 0 | OO,AS |
| Aug 2024 | 113 | 18 | 0 | 0 | AS,OO |
| Jul 2024 | 114 | 19 | 0 | 0 | AS,OO |
| Jun 2024 | 120 | 20 | 0 | 0 | AS,OO |
| May 2024 | 114 | 9 | 1 | 0 | AS,OO |
| Apr 2024 | 109 | 8 | 0 | 0 | OO |
| Mar 2024 | 116 | 15 | 0 | 0 | AS,OO |
| Feb 2024 | 110 | 12 | 1 | 0 | AS,OO |
| Jan 2024 | 112 | 24 | 18 | 0 | AS,OO |
EUG–SEA seasonal on-time pattern
Best: April (91.9%) · weakest: December (84.2%)
Strongest calendar month
April
91.9% on-time · ~161 flights/mo
Busiest calendar month
August
~186 flights/mo avg
Weakest calendar month
December
84.2% on-time · ~143 flights/mo
Cancellation Rate
1.2%
39 of 3,348 flights
Diversion Rate
0.1%
2 of 3,348 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
EUG - Eugene
Full on-time, delay-cause, and seasonal performance for Eugene, OR.
EUG on-time profileSEA - Seattle
Full on-time, delay-cause, and seasonal performance for Seattle, WA.
SEA on-time profileCompare the two airports
See EUG and SEA side by side on delays, cancellations, and reliability.
Compare EUG vs SEAOrigin-hub reliability standing
Among EUG's stronger departures
EUG → SEA posts a 89.2% on-time rate, landing in the ≥85% band with 5 of 11 BTS-tracked routes leaving Eugene. The same hub also shows 4 mid-band and 2 challenged departures · fleet-wide on-time rank #222 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to EUG–SEA.
Routes with a similar on-time rate
What the Data Says About EUG to SEA
Eugene to Seattle (EUG to SEA) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 89.2% on-time rate across 11,740 flights, with delays that do happen averaging 77.9 minutes. The corridor runs roughly 234 miles and is served by 5 carriers. Over the most recent 24 months, 39 of 3,348 flights were cancelled (1.2%) and 2 diverted (0.1%).
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 93% on-time, while Jun 2025 came in at just 72% - a 20-point swing worth factoring into travel timing.
On the multi-year calendar, EUG–SEA peaks in April at 91.9% on-time while August carries the heaviest traffic (~186 flights per month) ; the softest month is December at 84.2%, a 7.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does EUG to SEA rank among US routes by traffic? ▼
How often are flights delayed from EUG to SEA? ▼
What is the cancellation rate for EUG to SEA? ▼
How far is the flight from EUG to SEA? ▼
When is the best time to fly from EUG to SEA? ▼
Airports on this route
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 EUG–SEA data
EUG–SEA runs 10.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare EUG and SEA airport profiles: delay causes and top routes differ even on the same corridor. EUG airport
- If your dates flex, April (91.9% on-time) beats December (84.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 89.2% 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.
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.