Flying with Kids on a Budget: Fares, Family Seating, Car Seats and Timing

Flying with kids does not have to cost a fortune, but family travel magnifies every fee: four seats, four bag allowances and four meals. The biggest savings come from understanding what infants and children really pay, using Canada’s free family-seating rules instead of paying for seats, and timing trips around school-holiday peaks. Here is a practical playbook for Canadian parents.

Key takeaways

• Lap infants under two are usually free or taxes-only on domestic flights, and typically about 10 percent of the adult fare on many international routes.
• Children with their own seat generally pay the adult fare on Canadian airlines.
• Free family seating is required under Canada’s passenger rules for children under 14, so you rarely need to pay for seat selection.
• Strollers and car seats usually travel free, and an approved car seat can be used on board if your child has a seat.
• Timing beats everything: avoiding March Break, Christmas and July can save more than any other trick.

What kids pay: infants vs children

Age	Seat	Typical cost (verify with your airline)
Under 2, on your lap, domestic	Lap	Usually free or taxes only
Under 2, on your lap, Canada–US	Lap	Often free or taxes only on major Canadian carriers
Under 2, on your lap, other international	Lap	Commonly around 10% of the adult fare plus taxes
Under 2, own seat	Own seat	Child or adult fare, depending on airline and route
2 to 11	Own seat	Usually the same as an adult fare on Canadian airlines

A few details matter:

• Turning two mid-trip. If your child turns two before the return flight, the airline will usually require a paid seat for that leg.
• One lap infant per adult. Each lap infant needs a separate accompanying adult, and the number of lap infants per row is limited by oxygen masks.
• Points bookings. Award tickets often charge a small fee or a modest number of points for lap infants; our Aeroplan beginner’s guide explains how family pooling of points works.

Pro tip: For long-haul flights with a baby, request a bassinet seat when you book. Bassinets are limited and allocated on a first-come basis, and they can make a lap-infant fare far more comfortable.

Seat selection fees and Canada’s family-seating rule

Seat-selection fees can add up fast for a family of four. The good news is that Canada’s Air Passenger Protection Regulations require airlines to facilitate seating children under 14 near a parent or guardian at no additional charge:

• Age 4 and under: in a seat adjacent to the accompanying adult.
• Age 5 to 11: in the same row, separated by no more than one seat.
• Age 12 or 13: separated by no more than one row.

If the airline cannot arrange this at booking, it must keep trying, including asking other passengers to switch at check-in or boarding. Details are on the official APPR site (rppa-appr.ca), and our APPR guide covers your other rights.

Airlines have also made their own processes friendlier. Air Canada offers complimentary seat assignments for parents and children under 14 travelling together, and WestJet introduced automatic, no-charge family seat assignment on WestJet-operated flights in March 2026. Policies change, so verify before you fly.

Heads up: Free family seating gets you near your child, not necessarily in a window, an exit row or extra legroom. Pay only if a specific seat is genuinely worth it to you.

Car seats, strollers and gear

• Strollers and car seats are typically accepted free of charge on most major Canadian airlines, usually in addition to your normal baggage allowance. Many airlines let you check a stroller at the gate.
• Using a car seat on board requires a purchased seat for your child. The seat must carry the required approval label: for Canadian seats, compliance with the Canadian Motor Vehicle Safety Standard (CMVSS 213 or 213.1) is the usual requirement, and airlines also accept certain foreign-approved seats.
• Booster seats are generally not approved for use on aircraft.
• Harness alternatives: some airlines accept an aviation-specific child harness for toddlers in their own seat; check the airline’s policy first.
• Placement: car seats usually go in a window seat so they do not block anyone’s exit.

Transport Canada strongly recommends an approved child restraint for children in their own seat. If you will need a car seat at your destination anyway, bringing your own can save on rental fees.

Budget timing: when families save most

Period	Typical family fares	Why
Christmas and New Year’s	Very high	Peak holiday demand
March Break	Very high	Dates vary by province, but demand spikes nationally
July	High	School is out everywhere
Late August	Moderate	Demand starts to fall before school
Mid-October to mid-December (excluding long weekends)	Good value	Quiet season for most routes
Early to mid-January	Good value	Post-holiday lull

For sun trips with kids, May, June and late fall often offer the best mix of price and weather; see our all-inclusive deals guide. For theme-park trips, our Orlando page covers the cheapest windows.

Time of day matters too. Morning departures are less likely to be delayed, and a flight that lines up with nap time can make a long journey much easier.

Bags and snacks: avoiding add-on costs

• Basic fares apply to kids too. A child with a seat on a basic fare usually gets only a personal item, so check allowances before you book.
• Infant items. Many airlines allow extra items such as a diaper bag for a lap infant; confirm the rules for your airline.
• Liquids exemptions. Baby formula, breast milk and baby food are allowed through security in reasonable quantities beyond the 100 ml limit. Declare them at screening.
• Pack snacks and empty water bottles. Airport food prices add up quickly for a family.
• Pack light where you can. Our carry-on packing guide has a list that works for older kids too.

Example: A family of four flying a basic fare with personal items only, choosing free family seating instead of paid seats, and travelling in mid-October rather than March Break can save hundreds of dollars on a single domestic return trip.

Airport and in-flight survival on a budget

The cheapest family trip can still go wrong at the airport. A little preparation keeps costs and stress down:

• Check in online and confirm everyone’s seats before you leave home.
• Use family screening lanes where airports offer them, and keep liquids, formula and electronics easy to reach.
• Download entertainment in advance. Not every aircraft has seatback screens, and onboard Wi-Fi costs extra.
• Bring child-sized headphones, a change of clothes for each young child and a small bag of new or forgotten toys.
• Plan for delays. Pack more snacks and diapers than the flight time suggests, and know your passenger rights if the airline is at fault.
• Carry documents for children. Children need their own passports for international travel, and a consent letter is recommended when a child travels without both parents.

Points and perks for families

• Pool points. Some loyalty programs, including Aeroplan, let household members combine points for one reward.
• Companion vouchers. Some airline credit cards include an annual companion voucher that can offset one family member’s fare.
• Free checked bags. Co-branded cards often include a free first checked bag for travellers on the same booking.

Want to hear about family-friendly sales before school-holiday prices climb? Sign up for CheapFly deal alerts.

Bottom line

Families save the most by flying outside school holidays, using free family seating instead of paid seats and knowing exactly what infants and children pay. Bring an approved car seat if your child has a seat, check bag allowances on basic fares, and let points and card perks cover the rest.