Distance From RAF Ascension Island to San Antonio International Airport, ASI - SAT Distance

The distance from RAF Ascension Island (ASI) to San Antonio International Airport (SAT) is 6137 miles or 9876 kilometers or 5330 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Cat Hill ( Saint Helena, Ascension and Tristan da Cunha ) to San Antonio ( United States )?

A one-way nonstop (direct) flight between Cat Hill and San Antonio takes around 14 hours 6 minutes.

Estimated flight time from RAF Ascension Island, Cat Hill, Saint Helena, Ascension and Tristan da Cunha to San Antonio International Airport, San Antonio, United States is 14 hours 6 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • ASI - SAT

Kilometers		9876 km
Statute Miles		6137 miles
Nautical Miles		5330 nm
Avg. Time of Flight		14 hours 6 minutes

RAF Ascension Island to San Antonio International Airport Flight Route Map - ASI to SAT Flight Path

Location of RAF Ascension Island & San Antonio International Airport is given below.
Click the map to view Cat Hill to San Antonio nonstop flight path and travel direction.

Click to see flight route on Google Map between Cat Hill, Saint Helena, Ascension and Tristan da Cunha and San Antonio, United States. .

Nonstop flight route between Cat Hill, Saint Helena, Ascension and Tristan da Cunha and San Antonio, United States.

Time Difference Between the Airports • ASI - SAT

Time difference between Cat Hill (Saint Helena, Ascension and Tristan da Cunha) and San Antonio (United States) is 6 Hours.
San Antonio time is 6 Hours behind Cat Hill.

Location	Local Time
Cat Hill (Saint Helena, Ascension and Tristan da Cunha)	2026-03-21, 06:29:24 GMT
San Antonio (United States)	2026-03-21, 00:29:24 MDT

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

RAF Ascension Island (ASI / FHAW) Cat Hill, Saint Helena, Ascension and Tristan da Cunha

Destination

San Antonio International Airport (SAT / KSAT) San Antonio, United States