What is the standard carry-on luggage size in 2026?

The standard carry-on luggage size for major US domestic carriers (Delta, American, United) is 22 x 14 x 9 inches (56 x 35 x 23 cm) including wheels and handles. Low-cost carriers and international airlines may have smaller or strict limits, such as Ryanair's 55 x 40 x 20 cm.

What is the maximum personal item size that fits under the seat?

A common personal item limit is 18 x 14 x 8 inches (45 x 35 x 20 cm) for budget carriers like Spirit and Frontier. United restricts personal items slightly more at 17 x 10 x 9 inches. Full-service airlines like Delta do not specify exact inches but require it to fit under the seat.

Do budget airlines check personal item sizes at the gate?

Yes, budget carriers like Spirit, Frontier, Allegiant, Ryanair, and easyJet strictly enforce personal item sizes. Gate agents often require passengers to place their bags into sizers. Failing the test can result in a gate check penalty fee ranging from $50 to $99.

Airline Baggage Allowance & Fee Calculator 2026: 30 Airlines Sizers

Baggage Limits Comparison Table (Quick Lookup)

A side-by-side look at personal item and carry-on allowances. Click any airline name to view its detailed fee schedule and interactive calculator.

Airline	Type	Personal Item (in)	Carry-On Size (in)	Carry-On Weight	1st Bag Fee
Delta Air Lines	Major	17x13x9	22x14x9	No limit	$35
American Airlines	Major	18x14x8	22x14x9	No limit	$35
United Airlines	Major	17x10x9	22x14x9	No limit	$30
Southwest Airlines	Major	18x13x8	24x16x10	No limit	FREE
JetBlue Airways	Major	17x13x8	22x14x9	No limit	$35
Spirit Airlines	Low-Cost	18x14x8	22x18x10	35 lbs	$40
Frontier Airlines	Low-Cost	18x14x8	24x16x10	35 lbs	$45
Alaska Airlines	Major	17x13x9	22x14x9	No limit	$35
Allegiant Air	Low-Cost	16x15x7	22x16x9	25 lbs	$35
Ryanair	Low-Cost	15.7x9.8x7.8	21.6x15.7x7.8	22 lbs	$12
easyJet	Low-Cost	17.7x14.1x7.8	22x17.7x9.8	33 lbs	$10
Wizz Air	Low-Cost	15.7x11.8x7.8	21.6x15.7x9	22 lbs	$16
British Airways	Major	18x12x6	22x18x10	51 lbs	$35
Lufthansa	Major	15.7x11.8x3.9	21.6x15.7x9	17.6 lbs	$30
Air France	Major	15.7x11.8x5.9	21.6x13.7x9.8	26.4 lbs	$30

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Why Luggage Dimensions Matter More Than Ever

In 2026, baggage fees are no longer just about checked luggage. Budget airlines like Spirit, Frontier, and Ryanair have turned the gate area into a revenue enforcement zone. Gate agents are often incentivized by commissions to check personal items, and standard bags exceeding limits by even half an inch are subjected to gate check fees.

The Fee-Free Travel Checklist

To guarantee you never pay luggage fees at the gate:

Know the sizer size: Always check your airline sizer limits before packing. A bag that is 18x14x8" fits Spirit and Frontier sizers, but is too large for United's personal item sizer.
Pack soft-sided bags: Soft canvas or nylon backpacks can easily squeeze down into metal sizers if you do not overstuff them. Hardshell bags cannot compress.
Weigh your bag: Check if your airline has a carry-on weight limit (low-cost carriers typically cap carry-on weight at 15-22 lbs).

Frequently Asked Questions

What is the standard carry-on luggage size for US airlines in 2026?+

Most major US airlines (Delta, American, Alaska) allow carry-on bags up to 22 x 14 x 9 inches (56 x 36 x 23 cm) including wheels and handles. United Airlines is similar, but Basic Economy tickets do not include a carry-on.

What are the dimensions for a free under-seat personal item?+

Budget airlines like Spirit and Frontier have strict personal item sizers measuring 18 x 14 x 8 inches (45 x 35 x 20 cm). United restricts personal items to 17 x 10 x 9 inches. For other major airlines, as long as it fits completely under the seat, it is approved.

How do I avoid baggage fees at the gate?+

First, check your bag dimensions against your airline's sizer before packing. Second, pack heavy items in your carry-on if your airline has no carry-on weight limit (like Delta or American). Third, use a soft-sided backpack as a personal item, as it can compress to fit sizers more easily than hard-sided luggage.

What is the maximum weight for checked luggage in 2026?+

For most major airlines (Delta, American, United, British Airways), the standard checked bag weight limit is 50 lbs (23 kg) for Economy tickets. Business or First Class tickets often allow up to 70 lbs (32 kg). Budget carriers like Spirit and Frontier restrict standard checked bags to 40 lbs (18 kg) and charge steep fees for going over.

Baggage sizing and fee guidelines reflect official policy data for 2026. Airlines reserve the right to alter policies at any time. Sizers include wheels and handles. This guide is for educational purposes. We advise double-checking with your airline prior to departure.

Delta Air Lines

American Airlines

United Airlines

Southwest Airlines

JetBlue Airways

Spirit Airlines

Frontier Airlines

Alaska Airlines

Allegiant Air

Ryanair

easyJet

Wizz Air

British Airways

Lufthansa

Air France

Air Canada

WestJet

Emirates

Qatar Airways

Singapore Airlines

Qantas

Baggage Limits Comparison Table (Quick Lookup)

Why Luggage Dimensions Matter More Than Ever

Frequently Asked Questions