Layover vs. Lay Over
“Layover” is the closed US noun for a short stop during a longer trip. Oxford records “lay over” as a North American phrasal verb for staying somewhere briefly during a journey; British English more often uses “stopover” for the noun.
Use “layover” as the US noun for a short stop during a longer journey. Use “lay over” as the North American phrasal verb for making or spending such a temporary stop.
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| US noun: temporary stop during a longer journey | layover | Use one word for the noun. |
| North American phrasal verb: make/spend such a stop | lay over | Use two words for the verb. |
Quick tests
Meaning / construction test
Are you naming the stop itself?
If yes: Use “layover.”
If no: If you are using the phrasal verb, use “lay over.”
Caveat: The noun/verb pattern is especially North American; other varieties may prefer different travel vocabulary.
Examples
We have a two-hour layover in Denver.
The temporary stop is a noun.
The crew will lay over in Denver overnight.
The phrasal verb is two words.
A longer layover may require leaving the terminal.
The noun remains one word.
Further guidance
Core difference
Use the documented noun or modifier form when naming a thing, result, event, or concept; use the spaced form when the words function as a verb.
Fast Test
If the expression can take ordinary verb tense or inflection in the sentence, the spaced verb form is usually the relevant choice.
Variant Boundary
Cambridge labels “layover” as a US noun, while Oxford records “lay over” as a North American phrasal verb for a temporary stop during a journey.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- Layover — Cambridge Dictionary (opens in a new tab)Cambridge Dictionary · US noun “layover” for a short stop during a longer journey
- Lay over — Oxford Advanced Learner’s Dictionary (opens in a new tab)Oxford Advanced Learner’s Dictionary · North American phrasal verb “lay over” for staying somewhere briefly during a long journey