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 July 2026, SkyWest Airlines operated the most departures, one of 2 carriers flying nonstop RDM–SEA; the Embraer E175 was the most common aircraft at 100% of departures; flights ran 85% full.
Departures
487
July 2026
Seats
36,316
both directions
Passengers
30,991
both directions
Load factor
85.3%
RPM ÷ ASM
Who flies RDM–SEA?
SkyWest Airlines operated the most nonstop RDM–SEA departures in July 2026 (304), one of 2 carriers on the route.
- OO
304 departures · 22,408 seats
Share of departures62.4%84.4%
Load
- QX
183 departures · 13,908 seats
Share of departures37.6%86.9%
Load
What plane flies RDM–SEA?
In July 2026, the Embraer E175 flew 100% of RDM–SEA departures.
- Embraer E175
487 departures · 85.3% load
100.0%
How has RDM–SEA traffic changed?
Nonstop RDM–SEA departures fell from 542 in August 2025 to 487 in July 2026.
Monthly nonstop RDM–SEA traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.
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
July 2026
487 departures · 30,991 passengers
85.3%
Load
By direction
Each direction is filed separately — they rarely match.
RDM → SEA
85.9% full
244 departures · 15,641 passengers
SEA → RDM
84.7% full
243 departures · 15,350 passengers
Nonstop RDM–SEA traffic has been filed since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 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 July 2026, the Embraer E175 flew the largest share of departures (100.0%).
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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