Routesonline analyses the North American aviation industry, taking a monthly look at the top routes served and revealing the airlines that are dominating the market. We also rank the top ten airports by available seat capacity.
September 2017 update - All data provided by OAG
Top North American airline routes
San Francisco (SFO) - Los Angeles International (LAX) took the number one spot for the most available capacity during September 2017 although the total number of available seats declined by 6.2 percent on a year-by-year basis. Honolulu (HNL) - Kahului (OGG) ranked tenth in the list and experienced the biggest year-on-year percentage growth, up 15.3 percent on September 2016.
https://infogram.com/north-america-routes-sept-2017-1gk92exr9kg7m16
Top North American airlines
American Airlines added the most capacity in the top ten during September 2017 with an additional 439,044 seats compared with the same month a year earlier. Southwest Airlines was marginally behind after it added 436,103 seats, with its total capacity during September 2017 standing at 16,080,303.
https://infogram.com/north-america-airlines-sept-2017-1g9vp1wkr3k524y
Top North American airports
San Francisco (SFO) added the most capacity during September 2017 compared with a year earlier, with the number of departure available seats rising by 6.3 percent to 2,907,522. Atlanta Hartsfield-Jackson remained as the number one although Los Angeles International closed the gap on an annual basis.
https://infogram.com/north-america-airports-sept-2017-1g57pr0qxxevp01
The full North American aviation industry data
Top North American routes by total available two-way capacity (September 2017):
| Rank | Airport | September 2017 capacity (total available two-way seats) | September 2016 capacity (total available two-way seats) | Year-on-year change (%) |
| 1 | San Francisco (SFO) - Los Angeles International (LAX) | 417899 | 445757 | -6.2% |
| 2 | Vancouver International (YVR) - Toronto Lester B Pearson (YYZ) | 346137 | 325802 | 6.2% |
| 3 | New York LaGuardia (LGA) - Chicago O'Hare International (ORD) | 339892 | 319818 | 6.3% |
| 4 | Los Angeles International (LAX) - New York J F Kennedy (JFK) | 336681 | 326230 | 3.2% |
| 5 | New York J F Kennedy (JFK) - London Heathrow (LHR) | 310066 | 329028 | -5.7% |
| 6 | Los Angeles International (LAX) - Las Vegas McCarran International (LAS) | 276203 | 280473 | -1.5% |
| 7 | Toronto Lester B Pearson (YYZ) - Montreal (YUL) | 271418 | 278243 | -2.5% |
| 8 | Los Angeles International (LAX) - Chicago O'Hare International (ORD) | 270881 | 275489 | -1.7% |
| 9 | Los Angeles International (LAX) - Seattle-Tacoma International (SEA) | 264018 | 270406 | -2.4% |
| 10 | Honolulu (HNL) - Kahului (OGG) | 262256 | 227536 | 15.3% |
Top North American airlines by total available capacity (September 2017):
| Airline |
Total available seats (September 2017) |
Total available seats (September 2016) |
Year-on-year change (%) |
| American Airlines (AA) | 20258647 | 19819603 | 2.2% |
| Delta Air Lines (DL) | 18441491 | 18206698 | 1.3% |
| Southwest Airlines (WN) | 16080303 | 15644200 | 2.8% |
| United Airlines (UA) | 14928847 | 14500761 | 3.0% |
| Air Canada (AC) | 5333677 | 5041472 | 5.8% |
| JetBlue Airways (B6) | 3904511 | 3541143 | 10.3% |
| Alaska Airlines (AS) | 3674893 | 3431224 | 7.1% |
| Spirit Airlines (NK) | 2489599 | 2099969 | 18.6% |
| Westjet (WS) | 2458208 | 2308571 | 6.5% |
| Frontier Airlines (F9) | 1644590 | 1564790 | 5.1% |
Top North American airports by total available departure seats (September 2017):
| Airport | Total available departure seats (September 2017) | Total available departure seats (September 2016) | Year-on-year change (%) |
| Atlanta Hartsfield-Jackson | 4917280 | 4961955 | -0.9% |
| Los Angeles International | 4120412 | 4018852 | 2.5% |
| Chicago O'Hare International | 4099486 | 3971366 | 3.2% |
| Dallas Dallas/Fort Worth | 3246168 | 3186903 | 1.9% |
| New York J F Kennedy | 3092063 | 3005035 | 2.9% |
| Denver | 2940256 | 2926977 | 0.5% |
| San Francisco | 2907522 | 2733953 | 6.3% |
| Toronto Lester B Pearson | 2467445 | 2354378 | 4.8% |
| Las Vegas McCarran | 2356667 | 2319784 | 1.6% |
| Seattle-Tacoma | 2315382 | 2247579 | 3.0 |
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