Need help booking?
Unpublished phone-only deals available
HDH to SDY: distance & flight time
Dillingham (Dillingham Airfield) → Sidney (Sidney - Richland Regional Airport)
3,470 mi
5,584 km · 3,015 nm
7h 16m
estimated nonstop flight time
+4h
time difference · heading northeast
See live HDH→SDY fares Phone-only fares on this route — call free
Flight time details
3,470 miles nonstop takes roughly 7h 16m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 4-hour time gain when reading arrival times on your ticket.
The two airports
- HDH — Dillingham Airfield · Dillingham, United States
- SDY — Sidney - Richland Regional Airport · Sidney, 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 HDH
- HNL · Daniel K Inouye International Airport25 mi away
- HHI · Wheeler Army Airfield12 mi away
- JRF · Kalaeloa Airport20 mi away
- NGF · Kaneohe Bay MCAS (Marion E. Carl Field) Airport29 mi away
Near SDY
- ISN · Sloulin Field International Airport41 mi away
- GDV · Dawson Community Airport49 mi away
- OLF · L M Clayton Airport69 mi away
- DIK · Dickinson Theodore Roosevelt Regional Airport91 mi away
Frequently asked questions
How far is HDH from SDY?
The flight distance from Dillingham (HDH) to Sidney (SDY) is 3,470 miles (5,584 km, 3,015 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from HDH to SDY?
A nonstop flight takes about 7h 16m 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 time difference between Dillingham and Sidney?
Sidney is 4 hours ahead of Dillingham.
What is the cheapest way to fly from HDH to SDY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on HDH–SDY that never appear on search engines, with no booking fees.