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UNN to SUS: distance & flight time
Ranong (Ranong Airport) → Null (Spirit of St Louis Airport)
9,037 mi
14,544 km · 7,853 nm
18h 11m
estimated nonstop flight time
-12h
time difference · heading north
See live UNN→SUS fares Phone-only fares on this route — call free
Flight time details
9,037 miles nonstop takes roughly 18h 11m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12-hour time set-back when reading arrival times on your ticket.
The two airports
- UNN — Ranong Airport · Ranong, Thailand
- SUS — Spirit of St Louis Airport · Null, 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 UNN
- KAW · Kawthoung Airport19 mi away
- URT · Surat Thani Airport58 mi away
- CJM · Chumphon Airport83 mi away
- VBP · Bokpyinn Airport95 mi away
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is UNN from SUS?
The flight distance from Ranong (UNN) to Null (SUS) is 9,037 miles (14,544 km, 7,853 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UNN to SUS?
A nonstop flight takes about 18h 11m 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 Ranong and Null?
Null is 12 hours behind Ranong.
What is the cheapest way to fly from UNN to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UNN–SUS that never appear on search engines, with no booking fees.