Frontier Airlines carry-on size 2026: personal item and carry-on by fare
What can I take on board for free? Frontier Airlines free personal item: 18 x 14 x 8 in under the seat · 35 lb
Carry-on bag (overhead locker): 24 x 16 x 10 in (≈ 61 x 40.6 x 25.4 cm), 35 lb – only with some fares, cabins or as a paid extra.
Official source: Frontier Airlines: Bag Options · Frontier Airlines FAQ: What are the sizes and weight limits for bags? · checked on 18 October 2026 (read in a browser)
Airlines change their bag rules and measure bags their own way (usually in a sizer at the airport, with wheels and handles). We quote each airline's official page on the date shown; the official rule and the airline staff decide. Check your booking before you fly.
Frontier Airlines bags you can take on board
| Bag | Where | Max size | Weight | Included |
|---|---|---|---|---|
| Personal item | Under the seat | 18 x 14 x 8 in (≈ 45.7 x 35.6 x 20.3 cm) | 35 lb | Free with every fare |
| Carry-on bag | Overhead locker | 24 x 16 x 10 in (≈ 61 x 40.6 x 25.4 cm) | 35 lb | Only with some fares, cabins or as a paid extra |
Sizes in the order Frontier Airlines writes them. “≈” marks our conversion; the other figures are Frontier Airlines' own.
What Frontier Airlines' official page says
Personal item
Personal Item
One included with all fares.
18in by 14in by 8in and up to 35lb including handles, wheels and straps
Carry-on bag
Carry-On Bag
Add when you book for the best price!
24in by 16in by 10in and up to 35lb including handles, wheels and straps
Official source: Frontier Airlines: Bag Options · Frontier Airlines FAQ: What are the sizes and weight limits for bags? · checked on 18 October 2026 (read in a browser)
Cabin bag by fare
| Fare | Under the seat | Overhead locker |
|---|---|---|
| All fares | Included | Paid extra (may be included in a bundle) |
Our short summary of the official wording below.
Personal Item
One included with all fares.Prices are typically higher at the airport, so it’s best to purchase baggage in advance. If you purchased a bundle, carry-on and/or checked bags may already be included.
If your bag is too big
Personal item size will be checked during boarding
Questions about Frontier Airlines cabin bags
Every answer below is quoted word for word from Frontier Airlines' official page, not written by us.
What size personal item can I bring for free on Frontier Airlines?
Personal Item
One included with all fares.
18in by 14in by 8in and up to 35lb including handles, wheels and straps
What is the Frontier Airlines carry-on size limit?
Carry-On Bag
Add when you book for the best price!
24in by 16in by 10in and up to 35lb including handles, wheels and straps
Is a carry-on bag included in every Frontier Airlines fare?
Personal Item
One included with all fares.Prices are typically higher at the airport, so it’s best to purchase baggage in advance. If you purchased a bundle, carry-on and/or checked bags may already be included.
Does Frontier Airlines check the size of cabin bags?
Personal item size will be checked during boarding
Official source: Frontier Airlines: Bag Options · Frontier Airlines FAQ: What are the sizes and weight limits for bags? · checked on 18 October 2026 (read in a browser)
Liquids in your Frontier Airlines cabin bag: the 100ml rule
The liquid limit is set by the airport you go through security at, not by Frontier Airlines. At most airports each container in your hand luggage must be 100ml or less; 12 of the 63 airports we track allow up to 2 litres, and some apply different limits at different checkpoints.
The rules for carrying liquids in your hand luggage depend on the airport.
At most airports, you cannot take liquids in containers larger than 100ml through security. This still applies if the container is only part full.
Quoted from Hand luggage restrictions at UK airports – Liquids · checked on 10 October 2026. Licence: Open Government Licence v3.0.
Liquid rules at 63 airports, quoted from their official pages
Does my bag fit Frontier Airlines?
Check your own bag against Frontier Airlines and 27 other airlines with the bag size checker. Common bag sizes:
Other airlines (North America)
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Cabin bag size by airline · EU free personal item rule · Liquids rules by airport