KE vs UA · 2026 comparison
Korean Air vs United
Korean Air wins on a carry-on on its cheapest fare; United wins on a bigger carry-on, a more generous carry-on weight limit and a bigger personal item. Here's how they compare on bags, fees, comfort, reliability and loyalty.
Verified Oct 17, 2026By Steven MoHow we check Report a correction
Korean Air
KEWins 1 category
- A carry-on on its cheapest fare
United
UAWins 3 categories
- A bigger carry-on
- A more generous carry-on weight limit
- A bigger personal item
Quick verdict
Korean Air wins on a carry-on on its cheapest fare; United wins on a bigger carry-on, a more generous carry-on weight limit and a bigger personal item. Check the cheapest fare's bag rules before you compare prices.
- Carry-on size
- Korean Air: 55 × 40 × 20 cm · United: 22 × 14 × 9 in
- Carry-on on the cheapest fare
- Korean Air: Included on every fare · United: Not on some basic fares
- First checked bag (regular economy)
- Korean Air: 2 free bags · United: $45
Side by side
| Korean Air | United | |
|---|---|---|
| Bags | ||
| Carry-on size | 55 × 40 × 20 cm | 22 × 14 × 9 in |
| Carry-on on the cheapest fare | Included on every fare | Not on some basic fares |
| Carry-on weight limit | 10 kg (22 lb) | None published |
| Personal item | 40 × 30 × 15 cm | 17 × 10 × 9 in |
| First checked bag (regular economy) | 2 free bags | $45 |
| Network | ||
| Alliance | SkyTeam | Star Alliance |
| Loyalty program | SKYPASS | MileagePlus |
| Main hubs | ICN | ORD, DEN, IAH, EWR, SFO |
Highlighted values are better for travelers. Fees are for U.S. domestic economy flights; on-time data is 2025 U.S. DOT figures for each airline's own flights.
Bags and fees
Korean Air allows a carry-on up to 55 × 40 × 20 cm (21.7 × 15.7 × 7.9 in), and United up to 22 × 14 × 9 in (56 × 36 × 23 cm), so United's is roomier.
Korean Air includes it on every fare, while United's Basic Economy can be personal-item only.
Korean Air caps carry-ons at 10 kg (22 lb); United publishes no limit.
Personal items: 40 × 30 × 15 cm (15.7 × 11.8 × 5.9 in) on Korean Air, and 17 × 10 × 9 in (43 × 25 × 23 cm) on United.
Korean Air includes two bags with Economy Standard on flights between the U.S. and Korea, and a first checked bag on United costs $45 on U.S., Canada, Mexico, Central America and Caribbean flights.
Basic economy
Korean Air (Economy): Every Economy fare includes the 10 kg carry-on.
United (Basic Economy): Basic Economy includes only a personal item on most U.S. and short-haul flights. A full-size carry-on is allowed on transatlantic, transpacific and South America routes, and for MileagePlus Premier members and eligible United cardmembers.
Loyalty and where they fly
Korean Air is in SkyTeam and United is in Star Alliance.
Loyalty programs: SKYPASS (Korean Air) and MileagePlus (United).
Korean Air's main hubs are Seoul (ICN). United's are Chicago (ORD), Denver (DEN), Houston (IAH), Newark (EWR), San Francisco (SFO). The best choice often comes down to which airline flies nonstop from your airport.
Which should you book?
Choose Korean Air if you want…
- a carry-on on its cheapest fare
- to earn and use SkyTeam miles and status
- nonstops from ICN
Choose United if you want…
- a bigger carry-on
- a more generous carry-on weight limit
- a bigger personal item
- to earn and use Star Alliance miles and status
- nonstops from ORD, DEN, IAH
On a route both fly, the cheaper ticket isn't always the cheaper trip: add the bags you'll actually bring, and check the fare rules before you book.
Korean Air vs United FAQ
It depends on what matters most to you. Korean Air wins on a carry-on on its cheapest fare; United wins on a bigger carry-on, a more generous carry-on weight limit and a bigger personal item. If they fly the same route, compare the total price with bags included.
Keep comparing
Bag rules and fees
Other comparisons
Connecting at their hubs
Sources
Last verified Oct 17, 2026. Airlines change their rules without notice, so confirm with the airline before you fly.
- Korean Air official baggage policy
- Upgraded Points: carry-on size chart for 63 airlines (updated May 16, 2026)
- United Airlines official baggage policy
- CNBC: United raises checked bag fees by $10 (Apr 2, 2026)
- U.S. DOT Bureau of Transportation Statistics: 2025 on-time performance by operating carrier (via AviationDB)
- Your Mileage May Vary: where every major U.S. airline stands on Wi-Fi (Oct 13, 2026)
- Simple Flying: how U.S. airline economy seat pitch compares in 2026
Read how we collect and check this data, or tell us if something's out of date.
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