|LUV||SOUTHWEST AIRLINES CO.||52.32||+1.67||+3.30%|
|BA||THE BOEING CO.||221.10||+4.12||+1.90%|
"With the timing of the MAX's return-to-service still uncertain, we are extending the MAX-related flight schedule adjustments through Feb. 8, 2020," Southwest said in an update on its website.
"The revision will proactively remove roughly 175 weekday flights from our schedule out of our total peak-day schedule of more than 4,000 daily flights."
Southwest is the U.S. carrier with the most exposure to the Max. In March, Stifel Financial said nearly 10 percent of the airline's October available seat miles were expected to come from the Max. Last year, Southwest added 18 Max aircraft to its fleet.
Southwest's announcement comes just over a week after American Airlines extended its 737 Max cancellations until Jan. 15. United Airlines has pulled Max flights until early January.
The Max jets were grounded in March after being involved in two crashes within a five-month period.