Delta baggage allowance: carry-on, checked bags and power banks

Q: What is the carry-on size limit on Delta?

Three sides added: 114cm. Each side: 56 × 35 × 23cm. Pieces: 1 carry-on bag + 1 personal item.

Q: Can I use a power bank on a Delta flight?

Using it on board: Do not recharge it on board, and do not use it to charge a device during taxi, take-off and landing. Where to keep it: May not be stored in an overhead bin.

Q: Can I put a power bank in checked baggage on Delta?

In checked bags: Spare lithium batteries, including power banks, are allowed in carry-on baggage only; not allowed in checked baggage. How many: Up to 2 power banks per person.

Photo: Airbus A220-100 ‘N126DU - 8126’ Delta Air Lines.jpg by Alan Wilson (CC BY-SA 2.0, cropped), via Wikimedia Commons.

Based in North America · Full-service
3 airports in Japan

Units

Official baggage page

Carry-on

56 × 35 × 23 cm

114 cm total

1 carry-on bag + 1 personal item

Power bank on board

Can be used

Largest power bank 100 Wh

Delta Air Lines is a full-service airline based in United States, flying to Narita, Haneda and Kansai in Japan. Carry-on: 114cm.

Cabin bag

What Delta lets you take into the cabin

Economy, as Delta publishes it.

Three sides added: 114 cm (≈44.9 in)
Each side: 56 × 35 × 23 cm (≈22 × 13.8 × 9.1 in)
Pieces: 1 carry-on bag + 1 personal item
Note: Delta Main Basic (Basic Economy) includes the same complimentary carry-on bag as other fares

In the airline's own wordsExpand

Delta
Combined length + width + height of baggage must not exceed 45 linear inches (114 cm)
Official page

Delta
Individual length, width and height measurements may not exceed 22” x 14” x 9” (56 cm x 35 cm x 23 cm) respectively
Official page

Checked bag

What Delta lets you check in

Size: Oversized fee for 161–203 cm (≈63.4–79.9 in); over 203 cm (≈79.9 in) not permitted (Asia/Middle East/Australia/India routes)

Power banks

Power banks and spare batteries on Delta

What Delta's own pages say about power banks.

In checked bagsSpare lithium batteries, including power banks, are allowed in carry-on baggage only; not allowed in checked baggage

Where to keep itMay not be stored in an overhead bin

Using it on boardDo not recharge it on board, and do not use it to charge a device during taxi, take-off and landing

Using it on board: Allowed
Power banks per person: 2 max

Not allowed: Power banks must not exceed 100Wh each, with no exceptions
How many: Up to 2 power banks per person
Packing: Place each battery in its own protective case or plastic bag, or tape across the contacts to isolate terminals

In the airline's own wordsExpand

Delta
Spare lithium batteries are allowed in carry-on baggage only with batteries individually protected to prevent short circuit.
Official page

Delta
No more than two power banks may be carried per person, and they may not exceed an aggregate total of 100 Wh each, with no exceptions.
Official page

Where these power bank rules come from: Delta Air Lines: delta.com/us/en/baggage/prohibited-or-restricted-items/battery-or-fuelChecked October 3, 2026

Power banks on Japanese flights Power bank rules, airline by airline

If you go over

If you go over the allowance

Charges published by Delta.

Extra checked bag (3rd–10th), each way, Asia routes (includes Japan): $200 USD/CAD/EUR each
Overweight checked bag, each way, Asia routes (includes Japan): 51–70 lbs (23–31.75kg): $100; 71–<100 lbs (32–45.36kg): $200 USD/CAD/EUR

Airports in Japan

Where Delta flies in Japan

Airports in Japan listed on the airline's own site or in the airport's official airline list, and the terminal to head for.

Airport: Terminal
Narita Airport: T1
Haneda Airport: T3
Kansai Airport: T1

Which terminal Delta uses at Narita, Haneda and Kansai (from the airports' own airline lists)

Compare

Delta and other airlines from North America

Compare withCompare with

The same numbers side by side. Tap a name for that airline's page.Expand

Carry-on and checked baggage, North America airlines (each airline's own published rules)

Airline	Carry-on size	Weight	Free checked (Economy)	Power bank on board
ACAir CanadaCanada · Full-service	55 × 40 × 23cm	—	Economy Basic: 1st bag fee $90.00, 2nd bag fee $120.00 (not free)	—
AAAmerican AirlinesUnited States · Full-service	56 × 36 × 23cm	—	Depends on the fare	Can be used
DLDeltaUnited States · Full-service	114cm	—	—	Can be used
HAHawaiian AirlinesUnited States · Full-service	114cm (approx.; original 45 linear in)	—	Free, up to 50 lbs	Can be used
UAUnitedUnited States · Full-service	56 × 35 × 23cm	—	Basic Economy: One free checked bag on most international flights across the Pacific	—
WSWestJetCanada · Full-service	56 × 36 × 23cm	—	Depends on the fare	Not to be used

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Frequently asked questions

What is the carry-on size limit on Delta?