bkkair
Posts: 384
Joined: Mon Aug 13, 2001 9:10 pm

Low Flight Levels Over N America

Mon Aug 13, 2001 9:16 pm

Just wondering why flights seem to fly lower in N America. You never seem to fly over FL390. ( Once flew FL450 on a DL767 from LAX-DFW). Flying around SE Asia normally on CX out of BKK the flights on (A330/340 and 777) go right up to FL410 or FL450. Is this unique to Asia that they fly higher?
 
Mac
Posts: 287
Joined: Thu May 24, 2001 11:56 am

RE: Low Flight Levels Over N America

Mon Aug 13, 2001 10:27 pm

Average altitude I have flown in the United States is
35 thousand feet. Again, this is average altitude I have
flown. The Highest I have flown, if I recall correctly is
around 37 to 37 thousand feet.

I do not have any knowledge as to why aircraft overflying other countries would attain higher altitudes.

Mac
 
timz
Posts: 6085
Joined: Fri Sep 17, 1999 7:43 am

RE: Low Flight Levels Over N America

Tue Aug 14, 2001 7:24 am

I don't think the 767 is allowed to climb even to FL430 with passengers-- in the US, anyway. Cabin altitude can't exceed 8000 ft, and pressure differential can't exceed whatever...
 
Guest

RE: Low Flight Levels Over N America

Tue Aug 14, 2001 7:31 am

I was once on an ASA CRJ and the captain said we were cruising at 42,000 feet...it seemed quite high. It was from atl to grr.
 
modesto2
Posts: 2669
Joined: Sun Jul 16, 2000 3:44 am

RE: Low Flight Levels Over N America

Tue Aug 14, 2001 7:49 am

Highest I've been was FL390 in a UA 777. But I've heard other aircraft on frequency at FL410.
 
jmacias34
Posts: 363
Joined: Tue Sep 05, 2000 10:50 am

RE: Low Flight Levels Over N America

Tue Aug 14, 2001 8:04 am

I was on a UA 737 flight from DEN-ONT and we are at FL410 due to rough turbulance and a storm.
 
timz
Posts: 6085
Joined: Fri Sep 17, 1999 7:43 am

RE: Low Flight Levels Over N America

Tue Aug 14, 2001 8:12 am

Don't think the -100 to -500 737s are allowed to exceed FL370, but if anyone knows better...