Delta Air Lines has a new longest domestic route from Seattle

Delta has put Seattle up for sale in Fort Lauderdale, which will take off this winter — unsurprisingly.

It will be the carrier’s longest domestic route from its Seattle hub, beating Lihue by 16 miles (26 km). But Fort Lauderdale was previously served by Delta, so this is “just” a takeover.

What is happening?

The 2,717-mile (4,373 km) route between Seattle and Fort Lauderdale is already bookable and begins Dec. 16, just in time for the Christmas peak.

Operating once a day, it will use 180-seat B737-900ERs. On the other hand, Alaska Airlines – its only direct competitor – will use 178-seat B737 MAX 9s this winter on the airport pair.

Delta’s offering is scheduled as follows, with all local times. Alaska, meanwhile, will have departures from Seattle at 7:30 a.m. and 9:40 p.m.

  • From Seattle to Fort Lauderdale: DL558, 08:00-16:25 (5h 25m block time)
  • Fort Lauderdale to Seattle: DL559, 6 p.m.-9 p.m. (time block 6 a.m.)

According to Department of Transportation T-100 data, Delta previously operated the route on a low frequency (usually 2 times per week) in the winter season between December 2016 and January 2019. In total, it carried 18,528 passengers, with a factor of 86.2% seat load. Of course, that says nothing about the rates.

Route network from Delta to Seattle in the summer of 2022. Image: GCMap.

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Delta’s Seventh Busiest Airport

Data from Cirium shows Seattle to be Delta’s seventh-busiest airport by flights this summer, sandwiched between JFK and Los Angeles, as shown below. It has 31,149 departing flights, varying between 116 and 154 each day.

  1. Atlanta: 170,611 flights departing this summer
  2. Detroit: 66,979
  3. Minneapolis: 66,686
  4. Salt Lake City: 53 117
  5. The Guardian: 50 260
  6. jfk: 43,759
  7. Seattle: 31 149
  8. Los Angeles: 30,670
  9. Boston: 30 105
  10. Orlando: 11,598

Delta owns a quarter of Seattle’s services, about the same as three years ago. It is five times larger in Seattle than in the southwest, but less than half the size of Alaska.

The A330-900 is used for Amsterdam, Seoul, Tokyo, Minneapolis and (only five times) Atlanta. Photo: Vincenzo Pace | Single flight.

52 routes from Seattle

According to Ciriun, Delta has 52 routes out of Seattle this summer. This of course excludes Fort Lauderdale, which restarts in December.

Nine of the 52 flights are international, in flight order: Vancouver, Amsterdam, Paris CDG, Cancun, Puerto Vallarta, Los Cabos, London Heathrow, Seoul Incheon and Tokyo Haneda. (There is currently neither Beijing nor Shanghai.)


As you’d expect, the vast majority of its Seattle flights — about nine out of ten — are domestic. With over 6,600 departures, California is by far the most serviced state, with a network spanning eight airports. Then come Oregon, Washington itself, Alaska and Georgia.

The A220-100 is Delta’s fourth most used aircraft type in Seattle this summer, behind the E175, B737-800 and B737-900ER. Photo: Vincenzo Pace | Single flight.

The ten best routes

Delta’s top ten routes this summer are summarized below. With 1,480 total departures, the short distance between Seattle and Portland, just 129 miles (208 km) apart, offers more service than any other. If broken down by day, it has up to 7x and a minimum of 6x.

Notice Atlanta. It has up to 8x a day in July and August, but as low as 5x, ranking third all season.

  • Portland: up to 7x a day this summer (in order of most flights: E175, B737-800, A220-100)
  • Spokane: up to 7x per day (E175)
  • Atlanta: up to 8x per day (B737-900ER, B757-300, B757-200, A330-300, A330-900)
  • Salt Lake City: up to 7x per day (B737-800, B737-900ER, B757-200, A321)
  • Vancouver: up to 6x per day (E175)
  • Los Angeles: up to 6x per day (B737-800, B737-900ER, A321)
  • Wooded: up to 6x per day (E175)
  • Minneapolis: up to 6x per day (B737-900ER, B757-200, B737-800, B757-300, A321, A330-900)
  • San Francisco: up to 6x per day (E175, A220-100, B737-800)
  • Anchoring: up to 6x per day (B737-900ER, B737-800)


What is your experience flying Delta to/from Seattle? Let us know in the comments.


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