FACTBOX-Which airports are affected by forced US flight reductions?

Nov 6 (Reuters) - The Federal Aviation Administration told airlines on Thursday to cut 4% of flights at 40 high-traffic airports starting Friday, according to a document seen by Reuters.

The level then increases by two percentage points each on Tuesday and next Thursday, reaching 10% on November 14.

The cuts, expected to impact hundreds of thousands of travelers, seek to address safety concerns due to a shortage of air traffic controllers during a record-setting U.S. government shutdown.

AIRPORTS AFFECTED

• Anchorage, Alaska - ANC - Ted Stevens Anchorage International Airport

• Atlanta, Georgia - ATL - Hartsfield-Jackson Atlanta International

• Boston, Massachusetts - BOS - Boston Logan International

• Baltimore, Maryland - BWI - Baltimore/Washington International

• Charlotte, North Carolina - CLT - Charlotte Douglas International

• Hebron, Kentucky - CVG - Cincinnati/Northern Kentucky International

• Dallas, Texas - DAL - Dallas Love Field

• Arlington, Virginia - DCA - Ronald Reagan Washington National

• Denver, Colorado - DEN - Denver International

• Dallas and Fort Worth, Texas - DFW - Dallas/Fort Worth International

• Romulus, Michigan - DTW - Detroit Metropolitan Wayne County

• Newark, New Jersey - EWR - Newark Liberty International

• Fort Lauderdale, Florida - FLL - Fort Lauderdale/Hollywood International

• Honolulu, Hawaii- HNL - Honolulu International

• Houston, Texas - HOU - William P. Hobby Airport

• Dulles, Virginia - IAD - Washington Dulles International

• Houston, Texas - IAH - George Bush Houston Intercontinental

• Indianapolis, Indiana - IND - Indianapolis International

• New York, New York - JFK - New York John F. Kennedy International

• Las Vegas, Nevada - LAS - Las Vegas McCarran International

• Los Angeles, California - LAX - Los Angeles International

• New York, New York - LGA - New York LaGuardia

• Orlando, Florida - MCO - Orlando International

• Chicago, Illinois - MDW - Chicago Midway

• Memphis, Tennessee - MEM - Memphis International

• Miami, Florida – MIA – Miami International

• Minneapolis/St. Paul, Minnesota – MSP – Minneapolis/St. Paul International

• Oakland, California – OAK – Oakland International

• Ontario, California – ONT – Ontario International

• Chicago, Illinois – ORD – Chicago O’Hare International

• Portland, Oregon – PDX – Portland International

• Philadelphia, Pennsylvania – PHL – Philadelphia International

• Phoenix, Arizona – PHX – Phoenix Sky Harbor International

• San Diego, California – SAN – San Diego International

• Louisville, Kentucky – SDF – Louisville International

• Seattle, Washington – SEA – Seattle/Tacoma International

• San Francisco, California – SFO – San Francisco International

• Salt Lake City, Utah – SLC – Salt Lake City International

• Teterboro, New Jersey – TEB – Teterboro

• Tampa, Florida – TPA – Tampa International

CUTS BY THE NUMBERS

• 1,800 flights and 268,000 airline seats are estimated to be cut per day when the full 10% reduction takes effect, according to aviation analytics firm Cirium.

• To meet the cuts on Friday, Delta said it would cancel about 170 flights, Southwest about 120 flights and American Airlines about 220 flights. United said it would cut 4% of flights but did not specify a number.

• Airlines can face a $75,000 fine for each flight operated over the limit, the FAA said. The agency threatened to impose cuts if carriers did not make cuts equitably across communities.