Air Florida and Hawaiian Airlines, two airlines with very localized route systems up to now, may soon be flying into the Washington area.

The two were among six carriers getting a total of 13 new routes out of the Washington area in the first grant of unused route authority under the recently signed Airline Deregultionn Act.

The Civil Aeronautics Board granted new authority to:

Air Florida for routes linking Washington National or Dulles airports with Fort Lauderdale, Fla. (An Air Florida official said yesterday the airline has tentative plans to begin service from Dulles to Fort Lauderdale on Dec. 14 at a fare approximately half the current coach fare between the two CAB approval to fly to the Bahamas so Washington-area travelers may soon be able to fly on the low-fare airline all the way to the Bahamas.)

Allegheny Airlines for routes between Baltimore and Orlando, Fla., Tampa, Fla., and St. Louis.

Braniff International for routes linking Baltimore with Minneapolis/St. Paul; and Washington National or Dulles to Chattanooga, Tenn., and Kansas City, Mo.

Hawaiian Airlines for routes linking Baltimore or Dulles to Portland, Ore; and Baltimore with San Diego, and Seattle/Tacoma, Wash. [The CAB recently gave Hawaiian (along with Braniff and United Airlines) the authority to fly to Seattle and Portland from Honolulu to replace Pan American World Airways which wanted out of the route. The new awards could mean new service from Baltimore to Hawaii on the Hawaiian carrier].

North Central Airlines for routes between Baltimore and Minneapolis/St. Paul and Milwaukee, Wisc.

Piedmont Airlines for new routes from Washington National to Raleigh/Durham, N.C., and Greensboro/High Point, N.C.

The airlines must begin serving the new routes within 45 days or they become available to other airlines.

Altogether 22 airlines were awarded 248 air routes currently held, but unused, by other airlines. Six of the airlines are intrastate and commuter airlines that didn't have any federally certificated service before.

Representatives of many of the airlines had stood in line outside the CAB for almost a week waiting to file their applications for the dormant routes once President Carter signed the airlines measure.

Under the new law the CAB is required to grant airlines, on a first-come, first-served basis, the unused route authority of other airlines. Routes listed on an airline's certificate are considered dormant or unused if the airline has failed to provide at least five round trips a week for at least 13 weeks in a 26-week period.

Fears that United Airlines, first in line, would gobble up everything in sight - oft-replaced by the smaller carriers - proved groundless when United put in its application for only one route: Buffalo to Orlando.

Braniff had asked for the most routes and got the most: 60. The ambitious carrier had originally asked for no less than 352 city-pairs (nearly 630 routes if they were counted airport to airport), but later scaled down its request to 99 city-pairs. As a result of the grant of new authority, Braniff is route system.

Because Braniff, Allegheny, Eastern and Northwest, Airlines asked for more routes than the CAB staff believes they could possibly start, the staff has recommended to the board adding 18 new cities to its present that the airline next is line asking for the same routes also be granted the authority. The four airlines then wouldn't have exclusive claim on the 34 dormant routes that are involved.

"While the act arguably permits such massive filings, the effect is to block other carriers from entering these markets clearly contrary to the intent or Congress to encourage new entry into the maximum number of markets where unused authority exists," the CAB's Bureau of Pricing and Domestic Aviation said.

Conspicuously absent on the list of airlines seeking new domestic routes was Pan American World Airways, which has complained for years about its inability to get CAB approval for domestic routes. A spokesman for the airline said the routes available didn't appear to be useful to them in building the kind of domestic airline system they wanted. In addition, he repeated Pan Am's contention that they didn't have the time or money to create a domestic system from scratch and prefer to do it by merging with National Airlines. (National also didn't request any new routes; Texas International Airlines, which also wants to take over National, filed a request for a dormant route butu it was taken by an airline ahead of it in line.)

The routes granted are just the first wave of new routes that will be awarded under the new law, and involve routes that are being flown by one airline or none at all. The CAB has more time to approve dormant route award requests on routes currently being served by two or more airlines.