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What you need to know about LAX's monumental terminal move

Fifteen airlines will swap terminals over Mother's Day weekend, including Delta, which will move from Terminals 5 and 6 to Terminals 2 and 3.
Fifteen airlines will swap terminals over Mother's Day weekend, including Delta, which will move from Terminals 5 and 6 to Terminals 2 and 3.
Joe Scarnici/Getty Images for Delta Air Lines

Fifteen airlines at Los Angeles International Airport will play musical chairs come Mother's Day weekend. They'll be moving terminals as part of a modernization plan that includes a mass reconfiguration of airline terminals.

The reconfiguration affects approximately two dozen airlines. Some have already completed the relocation process, which began in January.

In the biggest shift, Delta, the airport's largest carrier, will move to terminals 2 and 3 from its current location in terminals 5 and 6. LAX spokesperson Mary Grady says the reconfiguration will be a boon for travelers.

"If you think about it, now you have the three busiest airlines [United, American and Delta] on the south side of the airport. By moving Delta over to the north side of the airport, it helps to balance things," she tells KPCC.

The airline will invest $1.9 billion into revamping Terminal 3, the only terminal at the airport that hasn't been renovated in the last few years. Delta also plans to build a connector between Terminal 3 and the Tom Bradley International Terminal so passengers can go from one terminal to another once they clear security.

The move starts on the evening of  May 12, after all flights have landed, and continues through the morning of Wednesday, May 17. Most of the relocation will occur at night, when the airport is least busy.

After the last flight on "move" days, teams will work through the night to transition airlines. Delta's move will take multiple days to complete. On Mother's Day, the airline will be operating out of as many as four terminals — 2, 3, 4 and 5.

Flying this weekend? A few tips:

All the moves slated for Mother's Day weekend

Airline Moving from Moving to
Air Canada  T2  T6 
Allegiant  T3  T5 (T6 check-in) 
Avianca  T2  TBIT (T3 check-in) 
Boutique Air  T3  T6 
Copa  TBIT (T6 check-in)  TBIT (T3 check-in) 
Delta  T5/T6  T2/T3 
Frontier  T3  T5 (T6 check-in) 
Hainan  T2  TBIT 
Hawaiian  T2  T5 
InterJet  T2  TBIT (T3 check-in) 
JetBlue  T3  T5 
Qatar  T2  TBIT 
Southwest Int’l  T2  TBIT (T1 check-in) 
Spirit  T3  T5 
Sun Country T2  T5 (T6 check-in) 
Thomas Cook  T2  TBIT 
Virgin America  T3  T6 
Virgin Australia  TBIT (T3 check-in)  TBIT (T2 check-in) 
Volaris  T2  TBIT (T2 check-in) 
WestJet  T2  T3 
XL France  T2  T6