West ▁Airlines ▁with ▁Em bra er ▁ 1 7 5 s . ▁Al aska ▁Airlines ▁subs idi ary ▁Hor izon ▁Air ▁took ▁over ▁this ▁code ▁share ▁service ▁on ▁June ▁ 9 , ▁ 2 0 1 7 . ▁In ▁September ▁ 2 0 1 9 , ▁the ▁air line ▁announced ▁plans ▁to ▁fly ▁non stop ▁service ▁to ▁San ▁Diego ▁beginning ▁January ▁ 7 , ▁ 2 0 2 0 ▁and ▁to ▁Port land , ▁OR ▁beginning ▁June ▁ 1 8 , ▁ 2 0 2 0 . ▁ ▁D elta ▁briefly ▁operated ▁a ▁CR J - 2 0 0 ▁between ▁San ▁Luis ▁Ob is po ▁and ▁Salt ▁Lake ▁City ▁International ▁Airport ▁between ▁ 2 0 0 7 ▁and ▁ 2 0 0 8 , ▁until ▁sh el ving ▁the ▁fl ights ▁due ▁to ▁the ▁re cess ion . ▁ ▁With ▁the ▁terminal ▁up gr ades , ▁it ▁is ▁now ▁theoret ically ▁possible ▁to ▁operate ▁main line ▁aircraft ▁into ▁the ▁air port ▁such ▁as ▁the ▁Air bus ▁A 3 1 9 ▁or ▁Bo eing ▁ 7 1 7 ▁which ▁would ▁allow ▁higher ▁capacity ▁fl ights ▁to ▁destin ations ▁like ▁Den ver , ▁Phoenix , ▁or ▁Seattle , ▁or ▁longer ▁fl ights ▁to ▁destin ations ▁such ▁as ▁Houston ▁or ▁Chicago , ▁but ▁the ▁run way ▁is ▁not ▁long ▁enough ▁for ▁these ▁aircraft ▁at ▁M TO W . ▁ ▁Top ▁destin ations ▁ ▁Ann ual ▁traffic ▁ ▁C argo ▁▁ ▁Amer if light ▁for ▁U PS ▁ ▁West ▁Air ▁Inc . ▁for ▁Fed Ex ▁Express ▁