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How close is too close for a commercial plane to fly next to another?

Posted on 8/25/25 at 7:33 am
Posted by Rex Feral
Member since Jan 2014
15784 posts
Posted on 8/25/25 at 7:33 am
I was on a Turkish Air flight last week. Looking out the window I saw another airliner moving towards us on the right. It was close enough that i could clearly see the passenger windows and paint design on the tail. It was moving so fast it seemed like its image was skipping by. Kinda of like see still frames on a projector reel. Is that too close because I had to take five minutes to compose myself afterwards.
Posted by tiger rag 93
KCMO
Member since Oct 2007
2891 posts
Posted on 8/25/25 at 7:35 am to


Seems like it wasn’t too close if you’re posting about it.
This post was edited on 8/25/25 at 7:36 am
Posted by SallysHuman
Lady Palmetto Bug
Member since Jan 2025
12060 posts
Posted on 8/25/25 at 7:39 am to
quote:

I had to take five minutes to compose myself afterwards.


When you say 'compose'... do you mean rinse out your pants?
Posted by Papercutninja
Member since Feb 2010
1603 posts
Posted on 8/25/25 at 7:40 am to
quote:

Turkish Air


I hope your hair plugs are healing nicely!
Posted by forkedintheroad
Member since Feb 2025
1295 posts
Posted on 8/25/25 at 7:51 am to
How could you see the passenger windows if it was coming towards you?
Posted by jcaz
Laffy
Member since Aug 2014
18606 posts
Posted on 8/25/25 at 7:58 am to
Less than 1000 feet vertical separation

Plane you saw was likely well beyond that
Posted by When in Rome
Telegraph Road
Member since Jan 2011
36143 posts
Posted on 8/25/25 at 8:12 am to
I saw a cool video the other day on x of a plane with 2,000 ft vertical separation between filmer’s plane and plane in video. Even that just visually seemed pretty close (seem being the key word, obviously it’s safe since it clears the standard)
Posted by DustyDinkleman
Here
Member since Feb 2012
19051 posts
Posted on 8/25/25 at 8:16 am to
If your pilots didn’t take evasive action, it wasn’t as close as you think.
Posted by VanRIch
Wherever
Member since Sep 2007
11394 posts
Posted on 8/25/25 at 8:20 am to
I once saw a southwest plane fly past us and underneath, going the opposite direction. It startled me as well as some of the other passengers. When I landed I googled the distance required and realized that they were well beyond the minimum limit. Still seemed unnecessary to be that close but I’m no expert.
Posted by WestSideTiger
Baton Rouge
Member since Jan 2004
4814 posts
Posted on 8/25/25 at 8:27 am to
Relax. The passengers on planes involved in midair collisions rarely even see it coming.


Posted by DevilDogTiger
RTWFY!
Member since Nov 2007
6551 posts
Posted on 8/25/25 at 8:27 am to
1000 feet vertical
or 5 miles latterly
or 3 miles in a terminal environment
or passing and diverging (15 degrees)
or pilot visual
or tower applied visual
or nonradar sep (Pilot reports leaving)
or waver rule applicable to a specific environment (1 1/2 on parallels)
or 2 increasing to 3 within 1
or about 100 other rules
No way to know unless the exact scenario was shown
Posted by HeadSlash
TEAM LIVE BADASS - St. GEORGE
Member since Aug 2006
54542 posts
Posted on 8/25/25 at 8:28 am to
7
Posted by Paulburbank
Member since Jun 2025
113 posts
Posted on 8/25/25 at 8:32 am to
quote:

1000 feet vertical or 5 miles latterly or 3 miles in a terminal environment or passing and diverging (15 degrees) or pilot visual or tower applied visual or nonradar sep (Pilot reports leaving) or waver rule applicable to a specific environment (1 1/2 on parallels) or 2 increasing to 3 within 1 or about 100 other rules No way to know unless the exact scenario was shown




10-4 ghost rider
Posted by LSUGrad9295
Baton Rouge
Member since May 2007
36793 posts
Posted on 8/25/25 at 8:36 am to
I have been on hundreds of flights and not once have I ever looked out the window and saw another plane (nearby)

Edit to add "nearby".
This post was edited on 8/25/25 at 9:22 am
Posted by SingleMalt1973
Member since Feb 2022
21696 posts
Posted on 8/25/25 at 8:54 am to
350ft
Posted by SouthEndzoneTiger
Louisiana
Member since Mar 2008
11346 posts
Posted on 8/25/25 at 8:56 am to
quote:

I have been on hundreds of flights and not once have I ever looked out the window and saw another plane.


I was on a flight once that was seemingly very normal. Not much turbulence, smooth takeoff, etc. But when we landed the pilot slammed on the brakes. I mean the second we touched down, he hit the brakes and all of us were leaned forward about to head butt the seat in front of us. Then it slowed to a very slow roll, as all of us were looking around at each other in confusion. Then the plane took a left to start heading toward the terminal and holy shite, there was plane just sitting there on the runway. The same runway we just landed on. I swear that plane was less than 100 yards from us.
Posted by Fat and Happy
Baton Rouge
Member since Jan 2013
19373 posts
Posted on 8/25/25 at 8:59 am to
Only applied in horse shoes and hand grenades.

If the planes don’t touch, then it’s not too close.
Posted by dstone12
Texan
Member since Jan 2007
38179 posts
Posted on 8/25/25 at 9:07 am to
I’m going give my interpretation of how far apart they should be as a medical sales person and not a pilot. Here goes.



They are usually 1000 above below each other.


But in watching flight aware, they usalloy fly AT each other as long as one is 34k feet and the other coming at/past it is 33k feet.

It seems like a gamble but they trust their equipment.

I suppose they fly by right at each other is a way keep tabs on where they are. Maybe they do it to get a visual.

But when I watch them on FlightAware, I always think “dude pull to left and let him pull to his left” but tuebnever fly into each other.
Posted by cgrand
HAMMOND
Member since Oct 2009
46077 posts
Posted on 8/25/25 at 9:11 am to
quote:

But when I watch them on FlightAware
a lot of free time on your hands?
Posted by LSUBoo
Knoxville, TN
Member since Mar 2006
103388 posts
Posted on 8/25/25 at 9:12 am to
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