Without recourse to google etc., here's what I got:

1. What airline launched 707 service within the U.S.?
Got it. Hint: not Panam
2. What airline flew The Great Silver Fleet?
Got it
3. Name six US airlines that flew the Boeing 720
Got 5
4. Which airline was the launch customer for the 727?
Got it
5. What year did the 747 enter service?
Got it
6. Everyone knows AA, NW, PA, UA & TW flew the 747. Name five other non-cargo US airlines that also did
Got it
7. What airline’s ads proclaimed it to be “The Only Way To Fly”?
Got it. Hint: see username
8. Name three US airlines that flew the 737-100
Got 2
9. What three airlines merged to form Republic Airlines in 1979?
Got it
10. What airline’s 727s and DC-9s were known as “Yellowbirds”?
Got it
11. What airline’s airport lounges were known as Ionosphere Clubs?
Got it
12. What was the only US airline to offer scheduled air service with the French built Caravelle?
Got it
13. What airline offered Ambassador Service on its long distance flights in First Class?
Got it
14. What airline’s jets were called “Pacemakers”?
Got it
15. Name three US airlines that flew the British built BAC-111?
Got it
16. Name four more US airlines that flew the BAC-111
Got it, although they were mostly the same airplanes as 15
17. What airline offered “Royal Hawaiian Service” on its Hawaii flights?
No idea, I'd have to guess
18. What airline offered piano lounges on its 747s?
Got it. I sat in one
19. What year did the 767 enter service? Who was the launch customer?
Got it, got it
20. Name six U.S. airlines that flew the Lockheed Electra
Got it
21. What airline was the launch customer for the Boeing 727-200?
A guess
22. Name five US airlines that flew the Lockheed L-1011
Got it
23. What airline’s premium service was known as “Regal Imperial Service”?
No idea
24. Name two U.S. airlines that operated the DC-10, 747 and L-1011 and A310
Got it
25. What airline currently operates the world’s largest fleet of MD-80s?
Got it
26. Name 5 U.S. airlines that flew the Airbus A300
Got 4 not counting FX and UP
27. What airline’s 727s and DC-9s were known as “Whisperjets”?
Got it
28. Name three US airlines that flew the Convair 990
Got 2 excluding 'travel clubs'
29. What North American airline operated the Comet
There were 2
30. What airline's jets were once known as Astrojets?
Got it
31. What three airlines merged in 1968 to form Air West?
Got it
32. Name seven U.S. airlines that flew the standard DC-8 (Series 10-50)
Got it
33. Name three U.S. airlines that flew the DC-8-62
Got it if you include non-sched
34. What airline was famous for “Islander Punch” served from the trolley in a steaming volcano?
Got it
35. What major U.S. airline has not changed its livery since 1970?
Got it
36. Which airlines’ DC-9s were known as “Pamper Jets”?
Oooh I know I know this
37. What type of jet did Bonanza Airlines fly?
Got it
38. Which Hawaiian based airline operated the Fokker F-28 jet?
No idea
39. Name four airlines named for U.S. cities that operate or operated jet aircraft
Do airports count ?
40. Name five airlines named for U.S. states that operate or operated jet aircraft
Got it, although one is the same as in 39
41. What airline flew from LAX and LAS to JFK with luxurious, all First Class DC-8-62s
Got it
42. Name four U.S. airlines that offered scheduled service with Convair 880s
Got it
43. Name four airlines that flew Boeing 720s between the Continental US and Alaska
Got 3,4 if Aeroamerica qualifies as an 'airline'
44. What airline operated coach lounges called “Polynesian Pubs” aboard its DC-10s?
Got it
45. What airline’s 707s were known as “El Dorado Jets”?
Got it
46. What airline’s employees bought their airline a new 767-200?
Got it - "Spirit of xxxxx"
47. What airline’s DC-10s were called “Spaceships”?
Got it
48. Name five major US airlines that operated the DC-9-10
Got it
49. Name ten regional airlines that operated the DC-9-10
Only 8
50. Which US airline operated the DC-10-40?
Got it
51. What airline flew DC-9s into Page, Arizona?
Got it - dum diddy diddy dum
52. What airline flew 737s into Sheridan, Wyoming?
Got it
53. What airline flew 707s into Billings, Montana?
Guess
54. What airline flew DC-9s into Waterloo, Iowa?
Got it
55. What airline flew Convair 580s into Durango, Colorado?
Got it
56. What airline flew 720Bs into Sioux Falls, SD?
Got it - been there
57. What airline flew BAC-111s into White Plains, New York in 1970?
Got it
58. What airline flew Convair 880s between Denver and New York?
Hmmm ?
59. What airline flew DC-8-62s nonstop between New York and Honolulu?
Got it
60. What airline offered its First Class customers “Gold Coast Service” on West Coast routes?
Got it - and very nice it was too
61. What airline opened the industry’s first VIP lounge at LaGuardia in 1939?
Have to guess
62. The Sun King logo is associated with what airline?
Got it
63. Aside from 737s, what other type of aircraft did Southwest once operate?
Got it, there were 2
64. What was the name of the mallard duck on the tail of North Central Airlines aircraft
Got it
65. What two U.S. airlines operated both the Convair 880 and 990?
Got 1
66. What U.S. airline operated "Executive Special" flights for men only between Chicago and New York?
Got it - see 12
67. What U.S. airline operated a fleet of L-1011s with a downstairs lounge?
Got it
68. What U.S. airline named its jets after Clippers (as in Clipper Mayflower)
Got it
69. What U.S. airline inaugurated Concorde flights within the U.S. on January 12, 1979?
Got it
70. What three U.S. airlines operated L-1011s between the U.S. mainland and Hawaii?
Got it