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PHL to UTH: distance & flight time
Philadelphia (Philadelphia International Airport) → Udon Thani (Udon Thani Airport)
8,479 mi
13,645 km · 7,368 nm
17h 5m
estimated nonstop flight time
+11h
time difference · heading north
See live PHL→UTH fares Phone-only fares on this route — call free
Flight time details
8,479 miles nonstop takes roughly 17h 5m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time gain when reading arrival times on your ticket.
The two airports
- PHL — Philadelphia International Airport · Philadelphia, United States
- 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 PHL
- BBX · Wings Field18 mi away
- PNE · Northeast Philadelphia Airport19 mi away
- LLY · South Jersey Regional Airport22 mi away
- NXX · Willow Grove Naval Air Station/Joint Reserve Base23 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 PHL from UTH?
The flight distance from Philadelphia (PHL) to Udon Thani (UTH) is 8,479 miles (13,645 km, 7,368 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from PHL to UTH?
A nonstop flight takes about 17h 5m 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 PHL to UTH?
Nonstop service on PHL–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 17h 5m nonstop estimate.
What is the time difference between Philadelphia and Udon Thani?
Udon Thani is 11 hours ahead of Philadelphia.
What is the cheapest way to fly from PHL to UTH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on PHL–UTH that never appear on search engines, with no booking fees.
Why are some PHL to UTH fares phone-only?
Consolidator contracts let us sell certain PHL–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.