FlightGear
X-Plane
Tom Clancy’s H.A.W.X 2
Digital Combat Simulator
Birds of Steel
Air Combat
Ace Combat: Assault Horizon
Microsoft Flight Simulator X
CheapOair
KAYAK
Skyscanner
Expedia
Momondo
FlightHub
Google Flights
Justfly
The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit.
FlightGear's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark to judge new simulation code to the standards of the space industry. FlightGear is used professionally for research and development, as well as non-professionally.
Screenshots: link
Information: https://en.wikipedia.org/wiki/FlightGear https://www.flightgear.org/category/tours/ https://www.flightsim.com/vbfs/tags.php?tag=flightgear (multi-page articles) FlightGear wiki
As of 2020 there are over 700 aircraft and spacecraft projects available with 1 click download and install from the sim's launcher, more are available at 3rd party hangars and github repositories for different craft projects.
FlightGear 2020.3.8 and later has automatically downloaded 3d models of buildings, roads, cities etc. , based on Open StreetMap (OSM) data and automatic generation, for the whole world.
Platforms: Windows, macOS, Linux, Raspberry Pi, other OSes
FlightGear CheapOairCheapOair might be a bit more popular than FlightGear. We know about 1 link to it since March 2021 and only 1 link to FlightGear. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Check out https://flightgear.org or https://geo-fs.com. These are completely free to use. Source: 5 months ago
The difference is in the airline itself - you booked with KLM you said, through cheapoair.com - did you go to the KLM website and see what that same ticket would cost? The United flight on 'cheapoair' or whatever is going to be comparable to what it is on the website (within a few bucks as someone else stated). Source: about 2 years ago
X-Plane - The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
KAYAK - KAYAK is a travel search engine that searches hundreds of other travel sites at once. Our helpful tools & features find you the information you need to make the right decisions on flights, hotels, rental cars and vacation packages.
Tom Clancy’s H.A.W.X 2 - Tom Clancy’s H.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Digital Combat Simulator - Digital Combat Simulator is a Free-to-play, Single and Multiplayer Combat Flight Simulation developed by Eagle Dynamics and published by The Fighter Collection.
Expedia - Save up to 60% with Expedia Mobile Exclusive hotel deals!