The short answer
- Personal item: free, up to 18 × 14 × 8 in (46 × 36 × 20 cm).
- Carry-on: About $59–$99, cheapest at booking, highest at the gate, up to 24 × 16 × 10 in (61 × 41 × 25 cm), 35 lb max.
- Checked bag: first bag About $39–$89+; up to 40 lb (18 kg) and 62 linear inches.
- Frontier Basic fare: The basic fare includes only the personal item. A carry-on is included in the Economy, Premium and Business bundles; the Business bundle also includes two checked bags up to 50 lb.
Frontier bag fees at a glance
| Bag | Price | Limit |
|---|---|---|
| Personal item | Free | 18 × 14 × 8 in |
| Carry-on bag | About $59–$99, cheapest at booking, highest at the gate | 24 × 16 × 10 in |
| 1st checked bag | About $39–$89+ | Up to 40 lb / 18 kg |
| 2nd checked bag | Higher than the 1st bag | Up to 62 linear in |
| Overweight bag | 41–50 lb: $75. 51–99 lb: $129. Over 100 lb not accepted. Per bag, each way. | |
| Oversize bag | 63–110 linear in: $75. Over 110 in not accepted. |
Standard fees for Frontier’s main routes as of our last check. Elite status, co-branded cards and some fares include bags.
Checked bags
Each checked bag can weigh up to 40 lb (18 kg) and measure up to 62 linear inches (158 cm), length + width + height. Frontier’s checked bag weight limit is 40 lb, lower than most airlines. Prices change by route and date; check Frontier’s Bag Price Checker.
Full details: Frontier Checked Bag Size & Weight Limit.
Frontier carry-on and personal item size
- Carry-on
- 24 × 16 × 10 in
- 61 × 41 × 25 cm · About $59–$99, cheapest at booking, highest at the gate
- Personal item
- 18 × 14 × 8 in
- 46 × 36 × 20 cm · free
Frontier Basic fare
The basic fare includes only the personal item. A carry-on is included in the Economy, Premium and Business bundles; the Business bundle also includes two checked bags up to 50 lb.
Rules to know
- The free personal item is 18 × 14 × 8 in, the same size Spirit used, and is size-checked at boarding.
- Bags are cheapest when added at booking, more in My Trips, and most expensive at the airport and the gate.
- If bins are full, a paid carry-on is gate-checked at no extra cost.
- Elite Gold and higher get a free carry-on; Platinum and Diamond also get checked bags.
- The 51–99 lb overweight fee rose to $129 for bookings from April 4, 2026.
Will your bag fit Frontier?
Measure your bag at its widest points. Most carry-on bags are 21–22.5 in tall with wheels.
Bags that fit Frontier
- Best 22x14x9 Carry-On Luggage (Fits Every US Airline)A 22 × 14 × 9 in bag fits Frontier’s carry-on limit.
- Best Carry-On Travel Backpacks35–45 L travel backpacks built to the carry-on limit.
- Best 18x14x8 Personal Item Bags (Frontier & Ex-Spirit Size)An 18 × 14 × 8 in bag fits Frontier’s personal item limit.
- Best Underseat LuggageSmall wheeled bags that go under the seat.
Frontier compared with similar airlines
| Airline | 1st checked bag | 2nd checked bag | Checked weight | Lowest fare carry-on |
|---|---|---|---|---|
| Frontier | About $39–$89+ | Higher than the 1st bag | 40 lb18 kg | Personal item onlyFrontier Basic fare |
| Allegiant | Varies by route | Varies by route | 50 lb22 kg | Personal item onlyAllegiant base fare |
| Sun Country | About $35–$59+ | Higher than the 1st bag | 50 lb23 kg | Personal item onlySun Country base fare |
| Breeze Airways | About $50–$75 | About $60–$75 | 50 lb23 kg | Personal item onlyBreeze No Flex |
Frequently asked questions
How much is a checked bag on Frontier?
First bag: About $39–$89+. Second bag: Higher than the 1st bag.
What is the weight limit for checked bags on Frontier?
40 lb (18 kg) in economy. 41–50 lb: $75. 51–99 lb: $129. Over 100 lb not accepted. Per bag, each way.
How can I avoid Frontier baggage fees?
The free personal item is 18 × 14 × 8 in, the same size Spirit used, and is size-checked at boarding. Elite Gold and higher get a free carry-on; Platinum and Diamond also get checked bags.
What does Frontier Basic fare include?
The basic fare includes only the personal item. A carry-on is included in the Economy, Premium and Business bundles; the Business bundle also includes two checked bags up to 50 lb.