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UBP to PSM: distance & flight time
Ubon Ratchathani (Ubon Ratchathani Airport) → Portsmouth (Portsmouth International at Pease Airport)
8,397 mi
13,514 km · 7,297 nm
16h 56m
estimated nonstop flight time
-11h
time difference · heading north
See live UBP→PSM fares Phone-only fares on this route — call free
Flight time details
8,397 miles nonstop takes roughly 16h 56m 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
- UBP — Ubon Ratchathani Airport · Ubon Ratchathani, Thailand
- PSM — Portsmouth International at Pease Airport · Portsmouth, 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 UBP
- PKZ · Pakse International Airport61 mi away
- ZVK · Savannakhet Airport90 mi away
- ROI · Roi Et Airport94 mi away
- PXR · Surin Airport95 mi away
Near PSM
- BOS · General Edward Lawrence Logan International Airport50 mi away
- LWM · Lawrence Municipal Airport29 mi away
- MHT · Manchester-Boston Regional Airport33 mi away
- BVY · Beverly Municipal Airport34 mi away
Frequently asked questions
How far is UBP from PSM?
The flight distance from Ubon Ratchathani (UBP) to Portsmouth (PSM) is 8,397 miles (13,514 km, 7,297 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from UBP to PSM?
A nonstop flight takes about 16h 56m 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 Ubon Ratchathani and Portsmouth?
Portsmouth is 11 hours behind Ubon Ratchathani.
What is the cheapest way to fly from UBP to PSM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on UBP–PSM that never appear on search engines, with no booking fees.