Airline Travel Guide
Airline Travel Guide
Flying with a Breast Pump & Milk
You made it through TSA. Now what happens at the gate?
TSA determines what can pass through airport security. Your airline determines its carry-on and baggage allowance.
Breast-pump and breast-milk cooler policies aren't identical across airlines, so Pump to Plane checks the carriers' published policies to help you know before you go.
Policies can change. Always verify directly with your airline before travel.
Last reviewed: September 23, 2026
✈️ American Airlines
The quick answer
Breast pump: ✓ Additional free item
Milk cooler: ✓ Additional free item
Normal allowance: 1 carry-on + 1 personal item
American's policy is particularly clear: nursing mothers can travel with a breast pump and a small, soft-sided cooler of breast milk in addition to their carry-on or personal item. American explicitly states that these items do not have to be checked and are allowed even when you're not traveling with a child.
Pump to Plane takeaway
On American, your breast pump and small soft-sided breast-milk cooler don't count as your standard carry-on or personal item.
View American Airlines' official nursing-mother policy
✈️ Delta Air Lines
The quick answer
Breast pump: ✓ Additional free item
Milk cooler: ✓ Additional free item
Normal allowance: 1 carry-on + personal item
Delta states that passengers may bring a breast pump and associated cooler bag as an additional free item, in addition to the standard one-bag carry-on allowance. The pump/cooler is still subject to Delta's carry-on size restrictions.
Pump to Plane takeaway
On Delta, your breast pump and associated cooler bag can be brought aboard as an additional free item.
View Delta's official breast-pump baggage policy
✈️ JetBlue — CHECK BEFORE YOU FLY
What we can verify
JetBlue currently permits one carry-on and one personal item on all fares. Its published carry-on page lists several items that don't count toward that limit, including assistive devices, but it does not specifically list breast pumps or breast-milk coolers among those exceptions.
JetBlue separately confirms that medically necessary liquids and cooling items can be carried through security subject to TSA screening requirements, and says a small insulated cooler used for refrigerated medication must meet its carry-on requirements.
Pump to Plane takeaway
JetBlue's public baggage guidance does not currently give us enough breast-pump-specific language to promise that a separate pump bag or milk cooler won't count toward your baggage allowance. Confirm with JetBlue before travel.
View JetBlue's current carry-on policy
✈️ Southwest — CHECK BEFORE YOU FLY
What we can verify
Southwest currently allows one carry-on bag and one personal item onboard. Its published carry-on guidance says additional or oversized baggage should be checked, and its child-item guidance points nursing travelers to additional information but does not, in the policy material I could verify today, explicitly state that a breast-pump bag and cooler are additional baggage-exempt items.
Pump to Plane takeaway
Don't assume a separate pump bag or cooler is exempt from Southwest's carry-on count based solely on TSA rules. Verify the baggage treatment with Southwest before flying.
View Southwest's current carry-on policy
✈️ United Airlines
The quick answer
Breast pump: ✓ Additional free item
Milk cooler: ✓ Additional free item
Onboard milk storage: ✕ United does not store breast milk in its refrigerators or coolers
United states that passengers may bring a breast pump, breast milk, and formula onboard along with a carry-on bag—even when they are not traveling with their child. United also allows travelers to bring their own ice to keep milk and formula cool.
United does not store breast milk in its onboard refrigerators or coolers and does not guarantee access to in-seat power for pumping equipment.
Pump to Plane takeaway
On United, you can bring your breast pump and breast milk onboard along with your carry-on—even when you're traveling without your baby. Plan to bring your own cooling solution.
View United Airlines' official nursing policy
NEED TSA GUIDANCE? → View the TSA Travel Guide