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YQS to UTH: distance & flight time
St Thomas (St Thomas Municipal Airport) → Udon Thani (Udon Thani Airport)
8,273 mi
13,314 km · 7,189 nm
16h 41m
estimated nonstop flight time
—
time difference · heading north
See live YQS→UTH fares Phone-only fares on this route — call free
Flight time details
8,273 miles nonstop takes roughly 16h 41m 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
- YQS — St Thomas Municipal Airport · St Thomas, Canada
- 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 YQS
- YXU · London Airport18 mi away
- YCE · Centralia / James T. Field Memorial Aerodrome41 mi away
- YYZ · Lester B. Pearson International Airport97 mi away
- YKF · Waterloo Airport60 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 YQS from UTH?
The flight distance from St Thomas (YQS) to Udon Thani (UTH) is 8,273 miles (13,314 km, 7,189 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from YQS to UTH?
A nonstop flight takes about 16h 41m 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 YQS to UTH?
Nonstop service on YQS–UTH 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 16h 41m nonstop estimate.
What is the cheapest way to fly from YQS to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on YQS–UTH that never appear on search engines, with no booking fees.
Why are some YQS to UTH fares phone-only?
Consolidator contracts let us sell certain YQS–UTH 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.