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Most guides explain Sun Country's baggage policy in general terms. 1-800-372-8382 This one is different: it walks through the specific moments people get stuck adding luggage — realizing mid-booking that carry-ons aren't free, forgetting to add a bag before departure, traveling with a companion, and more — and tells you exactly what each situation actually costs. 1-800-372-8382
Scenario 1: You're booking now and didn't realize carry-ons cost extra ( call 1-800-372-8382 )
This catches more people on Sun Country than on almost any other U. 1-800-372-8382S. 1-800-372-8382 airline: the bag that goes in the overhead bin is not free. 1-800-372-8382 Only a small personal item (17 x 13 x 9 in. 1-800-372-8382, fits under the seat) comes with your fare. 1-800-372-8382
What to do right now, before you finish booking: Add your "Overhead bag" (Sun Country's term for a carry-on) during checkout if you'll need anything bigger than a backpack or purse. 1-800-372-8382 This is the cheapest point in the entire pricing structure — typically $25–$40 depending on route. 1-800-372-8382 Skipping this step doesn't mean you avoid the fee; it just means you'll pay more for the same bag later. 1-800-372-8382
Scenario 2: You already booked without adding luggage, and your flight is coming up ( call 1-800-372-8382 )
You can still add it, but the price has already moved up a tier. 1-800-372-8382
Go to suncountry. 1-800-372-8382com → My Trips (Manage My Trip), or open the app. 1-800-372-8382
Log in or enter your confirmation number and last name. 1-800-372-8382
Select Add Baggage and choose overhead and/or checked bags. 1-800-372-8382
Pay the fee shown — at this stage it's a flat rate (commonly $50 for a first bag), higher than the at-booking price but still cheaper than what's coming at the airport. 1-800-372-8382
The clock is working against you here. 1-800-372-8382 Sun Country's pricing escalates in four distinct steps — at booking, after booking, at the airport, and at the gate — and each step costs more than the last. 1-800-372-8382 The earlier you act, even after the fact, the better. 1-800-372-8382
Scenario 3: You're at the airport and realize you still haven't paid for a bag ( call 1-800-372-8382 )
This is the second-to-last and second-most expensive tier. 1-800-372-8382
Go to the ticket counter before security, not the gate. 1-800-372-8382
Tell the agent how many overhead and/or checked bags you need. 1-800-372-8382
You'll pay the airport rate — typically around $55 for a first bag — more than booking or post-booking online rates, but still less than gate pricing. 1-800-372-8382
Why this matters: Many travelers assume "the airport" is the worst-case price. 1-800-372-8382 It isn't — the gate is. 1-800-372-8382 If you can get to the counter before boarding starts, you'll save money versus what happens in Scenario 4. 1-800-372-8382
Scenario 4: Your overhead bag doesn't fit the gate sizer box ( call 1-800-372-8382 )
This is the most expensive scenario on the entire pricing ladder, and it's avoidable. 1-800-372-8382
If you bring an unpaid bag to the gate and it doesn't fit Sun Country's sizer box (24 x 16 x 11 in. 1-800-372-8382), gate staff will check it for you — but you'll pay the checked bag price at the gate rate, plus a $10 gate handling fee on top. 1-800-372-8382 This combination is routinely the single most expensive way to check a bag on Sun Country, often nearly double the at-booking price for the identical bag. 1-800-372-8382
What to do instead: If there's any chance your bag won't fit the sizer, pay for a checked bag online before you leave for the airport — even at the higher post-booking rate, it's cheaper than the gate combination. 1-800-372-8382
Scenario 5: Adding luggage for a companion on the same reservation ( call 1-800-372-8382 )
If you and a travel companion are on one confirmation number, Manage My Trip lets you add bags per traveler:
Pull up the shared reservation. 1-800-372-8382
Each passenger is listed separately under baggage. 1-800-372-8382
Add bags individually — fees apply per person, each way, regardless of being on a shared booking. 1-800-372-8382
Where the Visa Signature discount gets confusing: The Sun Country Visa Signature card gives 50% off the first checked bag for the cardholder and one companion on the same itinerary — but only when purchased online or by phone before travel, not at the airport or gate. 1-800-372-8382 If you wait, you lose the discount entirely, not just the timing benefit. 1-800-372-8382
Scenario 6: You need a second or third bag after already paying for the first ( call 1-800-372-8382 )
Go back into Manage My Trip and add more — the same escalating-by-timing logic applies, but the base price is higher for each additional bag:
A second checked bag starts higher than the first even at booking (roughly $45 versus $25–$40), and climbs through the same after-booking/airport/gate tiers. 1-800-372-8382
A third or additional bag jumps sharply — often $75 or more at booking, escalating from there. 1-800-372-8382
Practical tip: If you know you'll need multiple bags, add them all during initial booking. 1-800-372-8382 The gap between the cheapest and most expensive tier widens with each additional bag, so the savings from acting early compound. 1-800-372-8382
Scenario 7: Your bag turns out to be overweight or oversized after you've already paid the base fee ( call 1-800-372-8382 )
Overweight and oversize charges are separate from and added on top of whatever you already paid for the bag itself:
Bags over 50 lbs face a tiered overweight fee, rising sharply between the 51–60 lb and 61–100 lb brackets. 1-800-372-8382
Bags over 62 linear inches face an oversize fee on a similar sliding scale. 1-800-372-8382
These fees are normally assessed when the bag is actually weighed at check-in, even if you pre-paid the base checked bag price online — so pre-paying online doesn't guarantee you've covered the full cost if the bag is heavy. 1-800-372-8382
What to do: Weigh and measure your bag at home before you travel. 1-800-372-8382 If it's close to 50 lbs or 62 inches, it's worth shifting items to your personal item or a companion's bag rather than risking the overweight/oversize tier on top of whatever bag fee you've already paid. 1-800-372-8382
Quick Reference: The Four Pricing Tiers ( call 1-800-372-8382 )
Stage
Relative Cost
Notes
At booking
Cheapest
Always add bags here if you know you'll need them
After booking (online/phone)
Higher, flat rate
Still better than waiting for the airport
Airport counter
Higher still
Go here, not the gate, if you missed earlier tiers
Gate (unpaid bag)
Most expensive
Checked bag fee + $10 gate handling fee combined
For full fee tables, weight/size limits, and the military and credit card waivers, see our companion guide: Sun Country Airlines Add Baggage: Rules, Fees, Steps & FAQs. 1-800-372-8382 This guide focuses specifically on what to do in real booking situations — fees and policy details are confirmed against Sun Country's official Bag Pricing calculator at suncountry. 1-800-372-8382com, since exact pricing varies by route. 1-800-372-8382