Frontier Airlines · Bags & fees
Frontier Airlines bags, fees & check-in
Frontier is an ultra-low-cost carrier, so the headline fare is only the start. Here is what the add-ons actually cost: the paid carry-on, checked bags, seat selection, the fare bundles, change rules and the 60-minute check-in cutoff. Plain numbers, stated assumptions, and a date you can trust.
Unless noted, prices are for domestic U.S. travel, per bag, one way, bought online during booking. Frontier prices bags dynamically, so the figures below are typical ranges. The same bag bought later, or at the gate, costs more. International routes, promo fares and the FRONTIER World Mastercard change these numbers, and each is flagged below.
Checked bag fees
Frontier charges for every checked bag, and the price is dynamic: it varies by route, by travel date, and by when you buy it. The cheapest moment is during the initial booking. The most expensive is at the airport, where a single bag can more than double.
| Bag | During booking | Later / at gate |
|---|---|---|
| 1st checked bag | $29–$63 | up to ~$99–$117 |
| 2nd checked bag | $59–$86 | up to ~$99–$117 |
| Buy a bundle instead | Often cheaper | See bundles below |
Standard checked allowance is up to 40 lbs and 62 linear inches (length + width + height). The Business bundle raises the limit to 50 lbs per bag. Ranges are typical Frontier pricing and move with route and date. Confirm yours in Frontier's bag price checker.
Bags must be added at least 60 minutes before departure. Add them during booking to lock the lowest price. Waiting until the airport is the costliest option Frontier offers.
Carry-on & personal item
This is the part that surprises people. Frontier charges for a full-size carry-on bag. The personal item is free. The carry-on is cheapest during booking and climbs sharply at the gate, so never plan to pay for it there.
A carry-on added at the gate can cost more than three times the booking price. If you only need one bag in the cabin, compare the carry-on charge against a bundle. The bundle often costs the same or less and adds a seat and bag too.
Overweight & oversize fees
These surcharges stack on top of the standard checked bag price, so a heavy bag bought at the airport adds up fast. Bags above the top tier are not accepted.
| Bag exceeds | Surcharge (added) |
|---|---|
| 41–50 lbs (overweight) | +$75 |
| 51–99.99 lbs (overweight) | +$129 |
| Over 100 lbs | Not accepted |
| 63–110 linear inches (oversize) | +$75 |
| Over 110 linear inches | Not accepted |
Surcharges are per bag, per direction. The 51–99.99 lb tier is $129 on bookings made on or after April 4, 2026 (it was $100 before). A bag that is both overweight and oversize can incur both charges.
Basic Economy rules
Frontier's cheapest fare is the stripped-down Basic fare. It buys you a seat and a free personal item, and almost nothing else. Everything else is à la carte. If you need a carry-on, a seat together, or any flexibility, price a bundle before you book Basic.
| What you get | Basic fare | Economy bundle |
|---|---|---|
| Personal item | Free | Free |
| Full-size carry-on | Paid add-on | Included |
| Seat selection | Paid add-on | Standard seat included |
| Checked bag | Paid add-on | Paid add-on |
| Change / cancel 7+ days out | No fee, pay diff. | No fee, pay diff. |
On a Basic fare with no paid seat, Frontier assigns you a seat at check-in, which can split a group up. The bundles fold the carry-on, seat and (on Business) bags into one price that usually beats buying them separately.
Changes, cancellations & seats
Frontier charges no change or cancellation fee on flights touched 7 or more days before departure. You still pay any difference in fare and options. Inside the 7-day window a fee applies, and the cheapest fares are the least flexible.
| Action | 7+ days before departure | Within 7 days |
|---|---|---|
| Change fee | $0 + price diff. | Fee applies + price diff. |
| Cancel fee | $0 (credit issued) | Fee applies |
| Refund to original payment | Within 24h of booking only | Not standard |
| Same bundle keeps perks | Yes | Yes |
The no-fee window applies to all FRONTIER Miles status levels. Cancellations outside the 24-hour grace period are returned as travel credit, not cash. Always confirm the exact fee for your fare at the time you change it.
Check-in & bag-drop deadlines
Frontier's airport cutoffs are firm. Ticket counters and bag drop close 60 minutes before departure for domestic flights. Miss it and Frontier can deny boarding, even with a printed pass.
| Step | Deadline before departure |
|---|---|
| Bag drop / counter closes | 60 min (domestic) |
| International bag drop | 60 min (varies by airport) |
| Boarding gate closes | 15–20 min |
| Online check-in opens | 24 hours ahead |
Add bags at least 60 minutes before departure to avoid the airport price. Frontier charges nothing for online or app check-in. Confirm the cutoff for your specific airport, since a few international stations differ.
Onboard experience
Frontier is a no-frills cabin, and it is honest about that. Nothing is complimentary onboard, and the seats are basic. This is how the fares stay low.
Where Frontier flies
Frontier runs a mostly domestic point-to-point network, plus some Mexico, Caribbean and Central America routes. Denver is the main base, with several other focus cities feeding the map.
Best time to fly Frontier
These are seasonal patterns, not bookable fares. Sign in to search live Frontier fares for your exact dates.
Seasonal patterns are typical for U.S. leisure routes and vary by destination. They are planning guidance, not bookable prices.
How to skip the fees
Frontier baggage FAQ
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