Which airline has the most generous carry-on size limit?

Emirates offers one of the most generous carry-on allowances among major carriers, permitting bags up to 55x38x20 cm in Economy. Gulf carriers generally allow larger dimensions than European budget airlines, though they offset this with strict weight limits (typically 7 kg for Economy).

Do budget airlines charge for carry-on bags?

Yes. Spirit, Frontier, and Allegiant charge for overhead bin carry-on bags on their cheapest fares — fees often range from $45 to over $100 when paid at the gate. Ryanair and Wizz Air similarly restrict overhead bin access to passengers who purchase Priority boarding or a carry-on add-on.

Can I avoid gate fees on Spirit or Frontier by gate-checking my bag?

No. On Spirit, Frontier, and Allegiant, a gate check does not exempt you from paying the carry-on fee. If you show up at the gate without having paid, the airline will charge you the gate rate, which is typically the highest price tier. Always pay in advance if you need overhead bin space on these carriers.

Is Southwest still the best airline for carry-on travelers?

Southwest historically allowed 2 free checked bags plus a carry-on and personal item for all passengers, making it a top pick. However, Southwest announced significant policy changes for 2025 and 2026. Check Southwest's current baggage policy directly before booking, as the two-free-bag benefit that made it famous may have changed.

What is the standard carry-on size for US domestic flights?

Most US carriers set their carry-on limit at 22x14x9 inches (56x36x23 cm), including the wheels and handle. This is not a formal industry standard — each airline sets its own limit — but 22x14x9 has become the de facto norm for major US carriers. Budget carriers may differ, and all airlines measure with wheels and handles included.

Best Airlines for Carry-On Travelers 2026

Not All Airlines Treat Carry-On Travelers the Same

If you travel carry-on only, the airline you choose matters as much as the bag you pack. Some carriers include overhead bin access in every ticket and enforce size limits calmly. Others sell you a "fare" that amounts to a seat without baggage rights, then charge you the highest rate at the gate when you show up with a roller bag.

The difference between the best and worst airlines for carry-on travelers can easily be $100 per leg — or the stress of scrambling to consolidate your belongings at the gate.

This guide ranks the best airlines for carry-on travelers in 2026, calls out the worst offenders, and gives you practical tips for keeping your bag overhead.

The 6 Best Airlines for Carry-On Travelers

1. Southwest Airlines — Historically Generous, Now in Transition

For decades, Southwest was the gold standard for carry-on travelers. Every fare included a carry-on bag and a personal item in the overhead bin, on top of two free checked bags. The carry-on size limit of 24x16x10 inches was also notably larger than most competitors.

Important note for 2026: Southwest announced major policy changes affecting baggage benefits. The two-free-checked-bag policy — a defining feature of the airline for 50 years — is being restructured. Carry-on policies may also shift. Check Southwest's current baggage policy at southwest.com before booking, as the information in this guide reflects the legacy policy that made Southwest famous.

If Southwest's carry-on benefits remain intact under your fare class, it remains one of the best options for carry-on travelers.

2. Alaska Airlines — Reliable Inclusion Across Fares

Alaska Airlines includes a carry-on bag and a personal item on all fare types, including its base Saver fares. The size limit is 22x14x9 inches — standard for US carriers — and enforcement is consistent but not aggressive.

Alaska's boarding process moves efficiently, which helps with overhead bin availability. The airline also has a reputation for reasonable gate agents who focus on genuinely oversized bags rather than pulling out sizers for every roller bag that fits.

For West Coast travelers, Alaska is a reliable choice for carry-on-only trips.

3. Delta Air Lines — Best Legacy Carrier Option (with a Caveat)

Delta includes a carry-on bag on Main Cabin, Comfort+, and premium fares. The carry-on size limit is 22x14x9 inches.

The caveat: Delta Basic Economy does not include overhead bin carry-on access. Basic Economy passengers are limited to a personal item that fits under the seat. If you book the cheapest Delta fare, verify it is not Basic Economy before assuming you can bring a roller bag.

For passengers on Main Cabin fares and above, Delta's structured boarding process (boarding zones based on fare class and status) means earlier boarders typically find overhead bin space without difficulty.

4. JetBlue — Strong Value for Carry-On Travelers

JetBlue includes a carry-on and personal item on most fares, with a size limit of 22x14x9 inches. The exception is Blue Basic, JetBlue's lowest fare tier, which restricts overhead bin access.

What sets JetBlue apart is the combination of included carry-on access, more legroom than most competitors at equivalent price points, and generally friendly service. JetBlue also tends to enforce size limits less aggressively than some budget carriers that operate a similar route network.

For travelers on the East Coast or flying to the Caribbean, JetBlue is a strong carry-on-friendly option.

5. Emirates — Most Generous International Carry-On

On Economy Class, Emirates allows one carry-on bag up to 55x38x20 cm (roughly 21.7x15x7.9 inches). This is meaningfully larger than most European carriers and well above the IATA guideline of 55x35x25 cm.

The catch is weight: Emirates enforces a 7 kg (about 15 lbs) weight limit in Economy. A bag that fits the size allowance but exceeds 7 kg will be checked. Pack lightweight clothing and distribute heavier items (shoes, camera gear) across your personal item.

For long-haul international travel, Emirates is one of the most carry-on-friendly carriers if you pack light in terms of weight.

6. Hawaiian Airlines — Relaxed and Consistent

Hawaiian Airlines includes a carry-on bag on all fare types, with standard size limits applied reasonably. Enforcement is consistent without being aggressive.

Hawaiian is a smaller carrier, so its overhead bins tend to be less contested than those on busy trunk routes. For travel to Hawaii specifically, Hawaiian's carry-on policies and generally pleasant gate experience make it a comfortable choice.

Carry-On Comparison: Top 6 Airlines

Airline	Max Size	Weight Limit	Free on Base Fare?	Notes
Southwest	24x16x10 in	None stated	Yes (verify 2026 policy)	Policy changes announced
Alaska Airlines	22x14x9 in	None stated	Yes	All fares include carry-on
Delta	22x14x9 in	None stated	No (not Basic Economy)	Main Cabin and above only
JetBlue	22x14x9 in	None stated	No (not Blue Basic)	Most fares include carry-on
Emirates	55x38x20 cm	7 kg Economy	Yes	Weight strictly enforced
Hawaiian Airlines	22x14x9 in	None stated	Yes	All fares include carry-on

The Worst Airlines for Carry-On Travelers

Spirit Airlines

Spirit charges for overhead bin carry-on bags on all fare tiers. Fees range from around $45 when booked in advance to $100 or more when paid at the gate. Your personal item (which must fit under the seat) is the only free bag included in the base fare. Spirit's sizer at the gate is used actively — bags that exceed the personal item dimensions will be charged.

Frontier Airlines

Frontier's model mirrors Spirit. The base "Economy" fare includes only a small personal item. A standard carry-on bag for the overhead bin costs extra, and the fee increases the closer to departure you pay. Frontier has experimented with various bundle pricing structures — always check what is included in your specific fare before booking.

Ryanair

Ryanair allows a small personal item (40x20x25 cm) free with all fares. To access the overhead bin with a larger bag, you must purchase Priority boarding or a carry-on add-on. Without it, your larger bag will either be checked at the gate for a fee or you will be required to check it and pay. Ryanair's gate enforcement is among the strictest in the industry.

Wizz Air

Wizz Air's basic fare includes only an underseat bag (40x30x20 cm). Anything larger requires a carry-on fee or Wizz Priority. Like Ryanair, enforcement is active, and showing up at the gate with a non-compliant bag will result in a gate fee that is higher than booking the add-on in advance.

Tips for Carry-On Travelers

Board as Early as Possible

Overhead bin space fills from the front of the plane. Board in the earliest group you qualify for — whether through elite status, credit card benefits, paying for early boarding, or TSA PreCheck (which gets you through security faster). Every minute matters on full flights.

Pack a Soft-Sided Bag

Hard-shell suitcases cannot compress. A soft-sided duffel or bag can be squeezed into odd-shaped overhead bin spaces or pushed under the seat as a backup. Experienced carry-on travelers often prefer soft bags for this flexibility.

Roll Your Clothes and Use Compression Cubes

Rolling clothes rather than folding them reduces volume meaningfully. Compression cubes go further by letting you squeeze rolled clothes into a tighter package. A well-packed 20-liter bag with compression cubes can hold more than a loosely packed 30-liter bag.

Weigh Your Bag Before You Go

If you're flying with carriers that enforce weight limits (Gulf carriers, most Asian carriers), weigh your carry-on at home. A small luggage scale costs under $15 and can save you from unexpected fees at check-in.

Know the Actual Size — Including Wheels and Handles

Every airline measures your bag with wheels and handles included. A bag marketed as "22 inches" by a luggage manufacturer may actually be 22 inches to the top of the handle but 23 or 24 inches once the wheels are counted. Check the total external dimensions of your bag against the airline's limit before traveling.

Size Enforcement Is Getting Stricter

Airlines are investing in overhead bin space as a revenue source, and enforcement has tightened across the industry. Gate sizers — metal frames that show whether your bag fits — are appearing at more gates, particularly on budget carriers and busy hub airports.

Even airlines that historically looked the other way on mildly oversized bags are now enforcing limits more consistently. The safest approach is to pack a bag that genuinely fits the limit, not one that you hope will slip through.

If you travel frequently with a carry-on, invest in a bag that meets the most common carry-on limit of 22x14x9 inches. You will clear enforcement at virtually every major US carrier without concern.