Route on-time record
SEA to FAI: most on-time flights and the best time to fly
Seattle (Seattle–Tacoma International Airport) to Fairbanks (Fairbanks International Airport). 2,344 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.1% were cancelled. The most reliable flight number was Alaska 112 at 11:49 PM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
SEA → FAI
Seattle to Fairbanks: 2,344 nonstop flights a year
On time (12 months)
76%
Cancelled
1.1%
avg delay 13 min
Best time to leave
After 9 PM
78% on time vs 71% noon to 3 PM
Most reliable airline
Delta
78% chance on time
Lowest nonstop fare seen in the next two months: $308 (Alaska 351 on 2026-10-21). 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 112
11:49 PM → 2:38 AM3h 49m nonstop
Local times, typical schedule. Last flown 2026-03-16.
84%
chance on time
- On time (history)
- 85%
- Cancelled
- 0.7%
- Avg arrival delay
- 7 min
- Arrived on time 85% of the time (272 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 78% on time; Noon to 3 PM: 71%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Strong track record · 272 flights
Find Alaska 112 fares Opens this date on Aviasales#2 · Alaska 418
11:30 PM → 2:17 AM3h 47m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 84%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 84% of the time (19 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (After 9 PM: 78% on time; Noon to 3 PM: 71%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 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 418 fares Opens this date on Aviasales#3 · Alaska 374
9:57 AM → 12:58 PM4h 01m nonstop
Local times, typical schedule. Last flown 2026-05-31.
80%
chance on time
- On time (history)
- 89%
- Cancelled
- 0.0%
- Avg arrival delay
- 6 min
- Arrived on time 89% of the time (38 flights, Jun 2025 to May 2026).
- Never cancelled in 39 scheduled flights.
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
- Short track record (38 flights), so its score leans on the airline's record at this hour.
Limited track record · 38 flights
Find Alaska 374 fares Opens this date on Aviasales#4 · Delta 2186
9:45 PM → 12:12 AM3h 52m nonstop
Local times, typical schedule. Last flown 2026-05-31.
77%
chance on time
- On time (history)
- 79%
- Cancelled
- 3.0%
- Avg arrival delay
- 17 min
- Arrived on time 79% of the time (354 flights, Jun 2025 to May 2026).
- Cancelled 3.0% of the time (11 of 365).
- Leaves in this route's most on-time window (After 9 PM: 78% on time; Noon to 3 PM: 71%).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Strong track record · 354 flights
Find Delta 2186 fares Opens this date on Aviasales#5 · Alaska 402
7:59 PM → 10:53 PM3h 54m nonstop
Local times, typical schedule. Last flown 2026-05-31.
74%
chance on time
- On time (history)
- 83%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 83% of the time (40 flights, Jun 2025 to May 2026).
- Never cancelled in 40 scheduled flights.
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (40 flights), so its score leans on the airline's record at this hour.
Limited track record · 40 flights
Find Alaska 402 fares Opens this date on Aviasales#6 · Alaska 421
10:55 PM → 1:42 AM3h 47m nonstop
Local times, typical schedule. Last flown 2026-05-12. Same departure also flew as Alaska 102; its record covers all of them.
74%
chance on time
- On time (history)
- 76%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 76% of the time (86 flights, Jun 2025 to May 2026).
- Never cancelled in 86 scheduled flights.
- Leaves in this route's most on-time window (After 9 PM: 78% on time; Noon to 3 PM: 71%).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Moderate track record · 86 flights
Find Alaska 421 fares Opens this date on Aviasales#7 · Alaska 174
9:50 AM → 12:44 PM3h 54m nonstop
Local times, typical schedule. Last flown 2026-04-21.
74%
chance on time
- On time (history)
- 74%
- Cancelled
- 0.6%
- Avg arrival delay
- 16 min
- Arrived on time 74% of the time (321 flights, Jun 2025 to May 2026).
- Departs outside SEA's trouble window (4 PM to 10 PM, when 54% of its 68 ground stops and delay programs started).
Strong track record · 321 flights
Find Alaska 174 fares Opens this date on Aviasales#8 · Alaska 495
9:55 PM → 12:50 AM3h 55m nonstop
Local times, typical schedule. Last flown 2026-03-17.
73%
chance on time
- On time (history)
- 74%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 74% of the time (34 flights, Jun 2025 to May 2026).
- Never cancelled in 34 scheduled flights.
- Leaves in this route's most on-time window (After 9 PM: 78% on time; Noon to 3 PM: 71%).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Limited track record · 34 flights
Find Alaska 495 fares Opens this date on Aviasales#9 · Alaska 125
7:21 PM → 10:15 PM3h 54m nonstop
Local times, typical schedule. Last flown 2026-03-17.
73%
chance on time
- On time (history)
- 78%
- Cancelled
- 1.4%
- Avg arrival delay
- 9 min
- Arrived on time 78% of the time (69 flights, Jun 2025 to May 2026).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
Moderate track record · 69 flights
Find Alaska 125 fares Opens this date on Aviasales#10 · Alaska 284
5:51 PM → 8:42 PM3h 51m nonstop
Local times, typical schedule. Last flown 2026-05-31.
71%
chance on time
- On time (history)
- 79%
- Cancelled
- 0.0%
- Avg arrival delay
- 9 min
- Arrived on time 79% of the time (19 flights, Jun 2025 to May 2026).
- Departs inside SEA's trouble window: 54% of its 68 ground stops and delay programs started between 4 PM and 10 PM.
- Short track record (19 flights), so its score leans on the airline's record at this hour.
Limited track record · 19 flights
Find Alaska 284 fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- Delta Air Lines78%
485 flights · 80% on time as flown · 2.0% cancel
- Alaska Airlines75%
1,859 flights · 75% on time as flown · 0.8% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- 9 AM to noon78%
503 flights · avg delay 15 min
- Noon to 3 PM71%
345 flights · avg delay 13 min
- 3 to 6 PM71%
181 flights · avg delay 11 min
- 6 to 9 PM75%
363 flights · avg delay 13 min
- After 9 PM78%
952 flights · avg delay 12 min
Best day: Saturday (82%). Worst: Friday (71%).
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)45%
- Late-arriving aircraft32%
- Air traffic control and airport volume20%
- Severe weather3%
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
SEA to FAI questions
- What time of day is best to fly SEA to FAI?
- After 9 PM: 78% of flights arrived on time, against 71% for departures noon to 3 PM.
- Which airline is most on time from SEA to FAI?
- Delta, with a season-adjusted 78% chance of operating and arriving on time over 485 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 SEA to FAI?
- May (69% on time); the best was February (85%), 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 SEA
- FAI to SEA (return)
- SEA to LAX 83%
- SEA to PHX 79%
- SEA to SFO 69%
- SEA to ANC 74%
- SEA to DEN 77%
- SEA to LAS 77%
- SEA to ORD 75%
- SEA to GEG 81%
- SEA to DFW 77%
- SEA to PDX 82%
- SEA to SAN 78%
- SEA to SMF 81%
Live status: FAA delays and ground stops