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ROI to PHL: distance & flight time
Roi Et (Roi Et Airport) → Philadelphia (Philadelphia International Airport)
8,568 mi
13,789 km · 7,445 nm
17h 16m
estimated nonstop flight time
-11h
time difference · heading north
See live ROI→PHL fares Phone-only fares on this route — call free
Flight time details
8,568 miles nonstop takes roughly 17h 16m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11-hour time set-back when reading arrival times on your ticket.
The two airports
- ROI — Roi Et Airport · Roi Et, Thailand
- PHL — Philadelphia International Airport · Philadelphia, 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 ROI
- KKC · Khon Kaen Airport70 mi away
- BFV · Buri Ram Airport70 mi away
- ZVK · Savannakhet Airport72 mi away
- SNO · Sakon Nakhon Airport78 mi away
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
Frequently asked questions
How far is ROI from PHL?
The flight distance from Roi Et (ROI) to Philadelphia (PHL) is 8,568 miles (13,789 km, 7,445 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ROI to PHL?
A nonstop flight takes about 17h 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 Roi Et and Philadelphia?
Philadelphia is 11 hours behind Roi Et.
What is the cheapest way to fly from ROI to PHL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ROI–PHL that never appear on search engines, with no booking fees.