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Porter Airlines vs Southwest Airlines route maps

Porter Airlines flies 120 nonstop routes and Southwest Airlines flies 1,094 nonstop routes. They fly none of the same routes. 120 routes only on Porter Airlines, 1,094 routes only on Southwest Airlines; both serve 24 airports. Routes checked October 27, 2026.

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Routes both fly
0
Only PD
120
Only WN
1,094
Airports both serve
24

Route overlap

of all routes either flies are flown by both
0%
of the airports either serves are served by both
16%
of Porter Airlines's routes Southwest Airlines also flies
0%
of Southwest Airlines's routes Porter Airlines also flies
0%

Routes both fly · 0

Porter Airlines and Southwest Airlines fly none of the same airport pairs, though both fly to 24 of the same airports (listed below).

Route sources (including Wikipedia fallback): Porter Airlines ↗ (checked Oct 27, 2026), Porter Airlines ↗ (checked Oct 27, 2026), Porter Airlines ↗ (checked Oct 27, 2026), Porter Airlines ↗ (checked Oct 27, 2026) and 36 more.

Compare other airlines

Only Porter Airlines · 120

From Toronto YTZ · 15

From Toronto YYZ · 39

From Ottawa YOW · 31

From Hamilton YHM · 11

From Montréal YUL · 9

From Halifax YHZ · 6

From Montréal YHU · 6

From Edmonton YEG · 1

From Vancouver YVR · 1

From Montego Bay MBJ · 1

Only Southwest Airlines · 1094

From Dallas DAL · 81

From Chicago MDW · 83

From Las Vegas LAS · 80

From Baltimore BWI · 76

From Denver DEN · 91

From Phoenix PHX · 58

From Atlanta ATL · 14

From Austin AUS · 65

From Houston HOU · 61

From Los Angeles LAX · 23

From Nashville BNA · 82

From Oakland OAK · 18

From Orlando MCO · 62

From St. Louis STL · 43

From San Diego SAN · 36

From Tampa TPA · 34

From Kansas City MCI · 30

From Fort Lauderdale FLL · 19

From Sacramento SMF · 18

From Fort Myers RSW · 17

From Columbus CMH · 10

From San Jose SJC · 14

From Indianapolis IND · 9

From Pittsburgh PIT · 9

From New Orleans MSY · 8

From Milwaukee MKE · 6

From San Antonio SAT · 5

From Burbank BUR · 8

From Washington DCA · 4

From Omaha OMA · 2

From Cancún CUN · 1

From Salt Lake City SLC · 1

From Long Beach LGB · 6

From Sarasota/Bradenton SRQ · 4

From Miami MIA · 2

From Buffalo BUF · 2

From Oklahoma City OKC · 1

From San José del Cabo SJD · 1

From Honolulu HNL · 5

From Warwick PVD · 1

From Santa Ana SNA · 1

From Kahului OGG · 2

From West Palm Beach DJT · 1

Airports both serve · 24

If Porter Airlines and Southwest Airlines merged

Merged, Porter Airlines and Southwest Airlines would fly 1,214 nonstop routes to 148 airports in 15 countries. They fly none of the same routes today, so a merger would add to each network without removing a competitor on any route. Porter Airlines would gain 96 new airports and Southwest Airlines 28 new airports.

Merged nonstop routes
1,214
Airports served
148
Countries
15
Routes both fly today
0 (0%)

New for Porter Airlines · 96

New for Southwest Airlines · 28

A what-if, not news of a real deal. Merge two other airlines

Quick answers

Do Porter Airlines and Southwest Airlines fly the same routes?

No. Their route maps have no airport pair in common, though both fly to 24 airports.

Which has more routes, Porter Airlines or Southwest Airlines?

Southwest Airlines, with 1,094 nonstop routes to 120 airports, against 120 routes to 52 airports for Porter Airlines.

Which airports do both Porter Airlines and Southwest Airlines fly to?

Austin (AUS), Boston (BOS), Cancún (CUN), Fort Lauderdale (FLL), Fort Myers (RSW), George Town (GCM), Las Vegas (LAS), Liberia (LIR), Los Angeles (LAX), Miami (MIA), Montego Bay (MBJ), Nashville (BNA), Nassau (NAS), New York (LGA), and Oranjestad (AUA), and 9 more.

Which routes does only Porter Airlines fly?

120 routes, including Oranjestad (AUA) to Ottawa (YOW), Oranjestad (AUA) to Toronto (YYZ), Cancún (CUN) to Hamilton (YHM), Cancún (CUN) to Halifax (YHZ), Fort Lauderdale (FLL) to Hamilton (YHM), and Montego Bay (MBJ) to Hamilton (YHM), and 114 more.

Which routes does only Southwest Airlines fly?

1,094 routes, including Austin (AUS) to Albuquerque (ABQ), Austin (AUS) to Amarillo (AMA), Austin (AUS) to Atlanta (ATL), Windsor Locks (BDL) to Baltimore (BWI), Windsor Locks (BDL) to Dallas (DAL), and Windsor Locks (BDL) to Denver (DEN), and 1088 more.

Where do these route maps come from?

Each airline's own route map, timetable and newsroom pages, with Wikipedia used only where an airline publishes none. Every source is linked under the map; the newest was checked October 27, 2026.

How much do Porter Airlines and Southwest Airlines overlap?

0% of the routes either airline flies are flown by both. That is 0% of Porter Airlines's routes and 0% of Southwest Airlines's; 16% of the airports either serves are served by both.

What would a Porter Airlines and Southwest Airlines merger fly?

Merged, Porter Airlines and Southwest Airlines would fly 1,214 nonstop routes to 148 airports in 15 countries. They fly none of the same routes today, so a merger would add to each network without removing a competitor on any route. Porter Airlines would gain 96 new airports and Southwest Airlines 28 new airports.

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