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RCA to SEA: distance & flight time
Rapid City (Ellsworth Air Force Base) → Seattle (Seattle Tacoma International Airport)
950 mi
1,529 km · 826 nm
2h 32m
estimated nonstop flight time
-1h
time difference · heading west
See live RCA→SEA fares Phone-only fares on this route — call free
Flight time details
950 miles nonstop takes roughly 2h 32m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- RCA — Ellsworth Air Force Base · Rapid City, United States
- SEA — Seattle Tacoma International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near RCA
- RAP · Rapid City Regional Airport7 mi away
- SPF · Black Hills Airport-Clyde Ice Field41 mi away
- CDR · Chadron Municipal Airport90 mi away
- GCC · Gillette Campbell County Airport121 mi away
Near SEA
- RNT · Renton Municipal Airport5 mi away
- BFI · Boeing Field King County International Airport6 mi away
- TIW · Tacoma Narrows Airport18 mi away
- PWT · Bremerton National Airport21 mi away
Frequently asked questions
How far is RCA from SEA?
The flight distance from Rapid City (RCA) to Seattle (SEA) is 950 miles (1,529 km, 826 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RCA to SEA?
A nonstop flight takes about 2h 32m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from RCA to SEA?
Nonstop service on RCA–SEA depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 2h 32m nonstop estimate.
What is the time difference between Rapid City and Seattle?
Seattle is 1 hour behind Rapid City.
What is the cheapest way to fly from RCA to SEA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RCA–SEA that never appear on search engines, with no booking fees.
Why are some RCA to SEA fares phone-only?
Consolidator contracts let us sell certain RCA–SEA tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.