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SIF to UTH: distance & flight time
Simara (Simara Airport) → Udon Thani (Udon Thani Airport)
1,321 mi
2,127 km · 1,148 nm
3h 20m
estimated nonstop flight time
+1.3h
time difference · heading southeast
See live SIF→UTH fares Phone-only fares on this route — call free
Flight time details
1,321 miles nonstop takes roughly 3h 20m gate to gate, flying southeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1.3-hour time gain when reading arrival times on your ticket.
The two airports
- SIF — Simara Airport · Simara, Nepal
- UTH — Udon Thani Airport · Udon Thani, Thailand
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 SIF
- KTM · Tribhuvan International Airport44 mi away
- BHR · Bharatpur Airport49 mi away
- MEY · Meghauli Airport54 mi away
- JKR · Janakpur Airport66 mi away
Near UTH
- VTE · Wattay International Airport44 mi away
- KKC · Khon Kaen Airport64 mi away
- LOE · Loei Airport70 mi away
- SNO · Sakon Nakhon Airport89 mi away
Frequently asked questions
How far is SIF from UTH?
The flight distance from Simara (SIF) to Udon Thani (UTH) is 1,321 miles (2,127 km, 1,148 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SIF to UTH?
A nonstop flight takes about 3h 20m 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 Simara and Udon Thani?
Udon Thani is 1.3 hours ahead of Simara.
What is the cheapest way to fly from SIF to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SIF–UTH that never appear on search engines, with no booking fees.