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GAI to SMO: distance & flight time
Gaithersburg (Montgomery County Airpark) → Santa Monica (Santa Monica Municipal Airport)
2,298 mi
3,698 km · 1,997 nm
4h 58m
estimated nonstop flight time
-3h
time difference · heading west
See live GAI→SMO fares Phone-only fares on this route — call free
Flight time details
2,298 miles nonstop takes roughly 4h 58m gate to gate, flying west. 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
- SMO — Santa Monica Municipal Airport · Santa Monica, 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 SMO
- LAX · Los Angeles International Airport6 mi away
- HHR · Jack Northrop Field Hawthorne Municipal Airport9 mi away
- BUR · Bob Hope Airport14 mi away
- VNY · Van Nuys Airport14 mi away
Frequently asked questions
How far is GAI from SMO?
The flight distance from Gaithersburg (GAI) to Santa Monica (SMO) is 2,298 miles (3,698 km, 1,997 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to SMO?
A nonstop flight takes about 4h 58m 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 Santa Monica?
Santa Monica is 3 hours behind Gaithersburg.
What is the cheapest way to fly from GAI to SMO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–SMO that never appear on search engines, with no booking fees.