American Airlines often routes SGF traffic through Dallas-Fort Worth (DFW), offering convenient connections to Lincoln via partner flights; United frequently uses Denver (DEN) or Chicago O'Hare (ORD) for connections to LNK. Delta may have seasonal/partner connections through Minneapolis (MSP) or Atlanta (ATL) depending on schedules. Low-cost carriers like Allegiant operate point-to-point routes seasonally but rarely provide service directly to LNK, so expect regional partners for Lincoln arrivals. When comparing airlines for December travel, evaluate total travel time, baggage rules, change fees, and reliability history for winter operations. CTA: Compare airlines and book the SGF to LNK December itinerary that best balances cost, baggage allowances, and connection reliability.