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SEP to YKN: distance & flight time
Stephenville (Stephenville Clark Regional Airport) → Yankton (Chan Gurney Municipal Airport)
741 mi
1,192 km · 644 nm
2h 5m
estimated nonstop flight time
Same time
time difference · heading north
See live SEP→YKN fares Phone-only fares on this route — call free
Flight time details
741 miles nonstop takes roughly 2h 5m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SEP — Stephenville Clark Regional Airport · Stephenville, United States
- YKN — Chan Gurney Municipal Airport · Yankton, 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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Near YKN
- FSD · Joe Foss Field Airport56 mi away
- SUX · Sioux Gateway Col. Bud Day Field62 mi away
- OFK · Karl Stefan Memorial Airport64 mi away
- MHE · Mitchell Municipal Airport68 mi away
Frequently asked questions
How far is SEP from YKN?
The flight distance from Stephenville (SEP) to Yankton (YKN) is 741 miles (1,192 km, 644 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SEP to YKN?
A nonstop flight takes about 2h 5m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from SEP to YKN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SEP–YKN that never appear on search engines, with no booking fees.