Redmond (RDM) to Seattle (SEA)
Flight time
≈ 1h 15m
Bearing
346° N
Redmond (RDM) to Seattle (SEA) is 228 miles (366 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies RDM–SEA
Filed traffic dataIn June 2026, SkyWest Airlines operated the most departures, one of 3 carriers flying nonstop RDM–SEA; the Embraer E175 was the most common aircraft at 96% of departures; flights ran 83% full.
Departures
479
June 2026
Seats
37,504
both directions
Passengers
31,254
both directions
Load factor
83.3%
RPM ÷ ASM
Who flies RDM–SEA?
SkyWest Airlines operated the most nonstop RDM–SEA departures in June 2026 (281), one of 3 carriers on the route.
- OO
281 departures · 20,654 seats
Share of departures58.7%83.9%
Load
- QX
180 departures · 13,680 seats
Share of departures37.6%85.2%
Load
- AS
18 departures · 3,170 seats
Share of departures3.8%71.4%
Load
What plane flies RDM–SEA?
In June 2026, the Embraer E175 flew 96% of RDM–SEA departures — more than any other aircraft type.
- Embraer E175
461 departures · 84.4% load
96.2% - Boeing 737 MAX 9
10 departures · 71.3% load
2.1% - Boeing 737-900ER
6 departures · 71.3% load
1.3% - Boeing 737-800
2 departures · 72.7% load
0.4%
How has RDM–SEA traffic changed?
Nonstop RDM–SEA departures fell from 487 in July 2025 to 479 in June 2026.
Monthly nonstop RDM–SEA traffic, trailing 12 months through June 2026. Bars scale to the busiest month; months with no filed service show as zero.
July 2025
487 departures · 38,330 passengers
80.9%
Load
August 2025
542 departures · 39,166 passengers
75.4%
Load
September 2025
530 departures · 35,324 passengers
69.9%
Load
October 2025
480 departures · 30,616 passengers
72.3%
Load
November 2025
425 departures · 26,715 passengers
67.7%
Load
December 2025
454 departures · 30,038 passengers
70.4%
Load
January 2026
388 departures · 24,098 passengers
67.4%
Load
February 2026
346 departures · 22,734 passengers
73.9%
Load
March 2026
420 departures · 27,553 passengers
69.5%
Load
April 2026
405 departures · 23,149 passengers
56.0%
Load
May 2026
461 departures · 29,020 passengers
68.8%
Load
June 2026
479 departures · 31,254 passengers
83.3%
Load
By direction
Each direction is filed separately — they rarely match.
SEA → RDM
82.6% full
240 departures · 15,523 passengers
RDM → SEA
84.1% full
239 departures · 15,731 passengers
Nonstop RDM–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through June 2026; filings from 2025. Public domain (US Government work).
The airports
Frequently asked
How far is Redmond (RDM) from Seattle (SEA)?
RDM to SEA is 228 miles (366 km / 198 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from RDM to SEA?
A nonstop covers the 228-mile great-circle distance in roughly 1h 15m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies RDM–SEA?
In June 2026, the Embraer E175 flew the largest share of departures (96.2%), followed by the Boeing 737 MAX 9 (2.1%).
What mileage do I earn flying RDM–SEA?
Distance-based programs credit off the 228-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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