flying-with-a-baby-guide

Can you bring pumped breast milk on a plane with Sun Country Airlines when traveling with a baby?

Flying Sun Country with a baby? Pumped breast milk is allowed—follow TSA liquid exemptions and airline carry-on rules.

Reviewed by:

D. Goren

Head of Content

Updated Feb, 6

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Can you bring pumped breast milk on a plane with Sun Country Airlines when traveling with a baby?

 

Bringing pumped breast milk on a plane with Sun Country Airlines

 

Yes — you can bring pumped breast milk when traveling with a baby on Sun Country Airlines. Sun Country follows standard U.S. Transportation Security Administration (TSA) screening rules: breast milk, formula, and baby food are allowed in carry-on bags in amounts greater than 3.4 oz (100 mL). These items are treated as an exception to the liquid limit but will require separate screening at the security checkpoint.

Key things to know and do

  • Carry it in your carry-on: Bring pumped milk in your carry-on bag or a separate cooler—do not rely on checked luggage for immediate needs.
  • Notify the TSA officer: At the security checkpoint, tell the officer you have breast milk. You will need to present the milk separately for X‑ray screening. Containers do not need to be in a quart-sized bag.
  • Quantity: There is no strict numeric limit for reasonable quantities of breast milk, but be prepared for additional screening if you carry large amounts (e.g., several liters for a long trip).
  • Ice packs and freezer packs: Ice packs, gel packs, and frozen freezer packs used to keep milk cold are permitted. Be aware that partially thawed or liquid packs may be subject to additional screening.
  • Screening procedures: Security may X‑ray the bottles or request that you open containers for inspection. If an item cannot be cleared by X‑ray, alternative screening methods (e.g., swab or visual inspection) may be used.
  • Breast pump and accessories: Pumps, bottles, and accessories are allowed in carry-on. If you bring battery-powered pumps, ensure batteries are installed according to airline rules (remove if required) and follow carry-on battery restrictions for spare lithium batteries.
  • Labeling and organization: Clearly label containers with baby’s name and date if possible; use sealed bags or a small insulated cooler to keep items organized and protected during screening.
  • Onboard storage: Ask a flight attendant about storing milk if you need refrigeration. Most aircraft do not have passenger-accessible refrigerators, so plan to keep milk insulated or consume during the flight as needed.
  • Infant items and carry-on allowance: Airlines often allow essential infant items in addition to your normal carry-on allowance. Check with Sun Country before travel if you expect the milk or equipment to exceed carry-on limits or you need clarification about extra items for an infant.
  • International travel: If traveling internationally, check the departure and arrival country screening rules and airline requirements—some countries and airports have different procedures. Contact Sun Country and the airports involved if you have large volumes or need special handling.
  • Pre-boarding: If you need more time to manage feeding or to stow milk, request pre-boarding for families with small children when offered.

Practical tips

  • Bring multiple small bottles rather than one large container—easier to handle at security and during feeding.
  • Pack milk in a clear, insulated bag and have bottles easily accessible so you can separate them quickly for screening.
  • If you have a lot of frozen milk, consider transporting some in an insulated cooler with frozen gel packs; label and organize to speed the checkpoint process.
  • If you’re uncertain about carry-on allowances or seat/infant policies on Sun Country, call their customer service before travel to confirm any airline-specific procedures (e.g., extra carry-on for infant supplies).

Bottom line: Pumped breast milk is permitted on Sun Country flights. Carry it in your carry-on, tell the TSA officer at screening, expect additional inspection, and plan packing and cooling accordingly for a smooth journey with your baby.

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