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GAI to PDX: distance & flight time
Gaithersburg (Montgomery County Airpark) → Portland (Portland International Airport)
2,329 mi
3,748 km · 2,024 nm
5h 2m
estimated nonstop flight time
-3h
time difference · heading northwest
See live GAI→PDX fares Phone-only fares on this route — call free
Flight time details
2,329 miles nonstop takes roughly 5h 2m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3-hour time set-back when reading arrival times on your ticket.
The two airports
- GAI — Montgomery County Airpark · Gaithersburg, United States
- PDX — Portland International Airport · Portland, 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 GAI
Near PDX
- TTD · Portland Troutdale Airport10 mi away
- HIO · Portland Hillsboro Airport17 mi away
- KLS · Southwest Washington Regional Airport39 mi away
- SLE · Salem Municipal Airport/McNary Field51 mi away
Frequently asked questions
How far is GAI from PDX?
The flight distance from Gaithersburg (GAI) to Portland (PDX) is 2,329 miles (3,748 km, 2,024 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to PDX?
A nonstop flight takes about 5h 2m 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 Gaithersburg and Portland?
Portland is 3 hours behind Gaithersburg.
What is the cheapest way to fly from GAI to PDX?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–PDX that never appear on search engines, with no booking fees.