Southwest has said on the record multiple times they are not running anymore connections (besides what they already have) through MCI so MCI-ANC obviously isnt happening. lol
Southwest actually added nonstop service from MCI to AUS, LGA, and SAT within the last 3 years, and in addition, Southwest had said this prior to the November 7, 2017 election that was in favor of a new terminal at MCI. Southwest does not serve CLT, CVG, DTW, EWR, PHL, RDU, SFO, SLC, and IAD nonstop from MCI, but AA serves its PHL and CLT hubs nonstop from MCI, DL serves its CVG, DTW, and SLC hubs nonstop from MCI, UA does serve its EWR, SFO, and IAD hubs nonstop from MCI, and F9 will be starting MCI-RDU nonstop service on April 9th.
The plans for the new MCI terminal haven't been finalized yet, but the new MCI terminal is currently planned to be completed by the end of 2021. WN will also be taking delivery of additional 737 MAX 7 planes in 2023 and 2024, and WN also already has plans to take delivery of over 197 Boeing MAX 8 planes.
WN does still have opportunities to add nonstop service from MCI to CLT, CVG, PHL, ONT, RDU, and SJC, but I am unsure if these adds will occur prior to the opening of the new terminal at MCI.
ONT, RDU, and SJC are three of the top destinations actually traveled to from MCI that are not currently served nonstop from MCI on any airline, but F9 already has plans to add MCI-RDU nonstop service, and WN could also possibly add MCI-ONT and MCI-SJC nonstop service. WN could also add MCI-RDU nonstop service if demand is there for additional MCI-RDU nonstop service beyond the already announced F9 MCI-RDU nonstop service since WN still has significant market share at RDU, even with the DL focus city operation at RDU.
CVG is far enough from MCI for F9 to add MCI-CVG nonstop service if the demand is there for additional nonstop service to CVG from MCI, but WN could add MCI-CVG nonstop service if the demand is there for additional MCI-CVG nonstop service since WN has over 50% market share in the MCI market, since F9 has never served CVG nonstop from MCI, since there are travelers in the Kansas City area who prefer to fly on WN over DL or F9, since WN currently serves DL's ATL, MSP, LAX, LGA, and SEA hubs nonstop from MCI, since WN is already willing to compete against DL on nonstop service from MCI to other DL hubs, since WN does serve other destinations in the Midwest nonstop from MCI, and since WN already does connect passengers to and from other destinations in the Midwest (including MSP, MKE, and IND) through MCI.
PHL already does have nonstop service from MCI on AA and F9, but WN could possibly serve PHL nonstop from MCI since WN still has gates that are not fully utilized at PHL, since WN has more than enough room to further expand at PHL, since PHL is one of the top destinations actually traveled to from MCI that WN does not currently serve nonstop from MCI, since WN serves other major East Coast destinations nonstop from MCI (including ATL, BWI, BOS, FLL, LGA, MCO, TPA, and DCA), and since there are travelers in the Kansas City area who prefer to fly on WN over AA or F9.
WN also does nonstop service to ABQ and IND from MCI, but not from STL, and in addition, WN has more nonstop service to DAL and DEN from MCI than it does from STL.
What does the amount of flights they have to DEN and DAL have to do with running a flight to ANC?
The point that I was trying to make is that WN has more daily nonstops to MDW, DAL, and DEN from MCI than it does from STL, and in addition, WN also serves ABQ and IND nonstop from MCI but not from STL. In addition, while Southwest is unlikely to ever serve ANC nonstop from MCI and while MCI is unlikely to have any nonstop service to ANC on any airline, MCI is within the range of Boeing 737's from ANC.