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.
Look up a route, or build a trip
Change the airports, or add stops for a multi-leg trip.
What actually flies RDM–SEA
US DOT T-100 · filed dataIn April 2026, SkyWest Airlines operated the most departures, one of 3 carriers flying nonstop RDM–SEA; the Embraer E175 was the most common aircraft at 71% of departures; flights ran 56% full.
Departures
405
April 2026
Seats
41,333
both directions
Passengers
23,149
both directions
Load factor
56.0%
passengers ÷ seats
Who flies RDM–SEA?
SkyWest Airlines operated the most nonstop RDM–SEA departures in April 2026 (192), one of 3 carriers on the route.
- OO
SkyWest Airlines
192 departures · 13,680 seats
Share of departures47.4%52.6%
Load
- AS
Alaska Airlines
119 departures · 20,509 seats
Share of departures29.4%56.3%
Load
- QX
Horizon Air
94 departures · 7,144 seats
Share of departures23.2%61.7%
Load
What plane flies RDM–SEA?
In April 2026, the Embraer E175 flew 71% of RDM–SEA departures — more than any other aircraft type.
- Embraer E175
286 departures · 55.7% load
70.6% - Boeing 737-900ER
61 departures · 56.6% load
15.1% - Boeing 737-800
36 departures · 59.8% load
8.9% - Boeing 737 MAX 9
19 departures · 50.2% load
4.7% - Boeing 737 MAX 8
3 departures · 49.7% load
0.7%
How has RDM–SEA traffic changed?
Nonstop RDM–SEA departures fell from 525 in May 2025 to 405 in April 2026.
Monthly nonstop RDM–SEA traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
525 departures · 33,538 passengers
70.0%
Load
June 2025
497 departures · 37,380 passengers
77.4%
Load
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
By direction
The DOT files each direction separately — they rarely match.
SEA → RDM
56.2% full
203 departures · 11,654 passengers
RDM → SEA
55.9% full
202 departures · 11,495 passengers
Nonstop RDM–SEA traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
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 April 2026, the Embraer E175 flew the largest share of departures (70.6%), followed by the Boeing 737-900ER (15.1%).
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.
Keep exploring
Every route below is its own page.
Other routes from RDM
Popular long-haul routes