One-Way Flights from the US
A one-way flight is a ticket in a single direction with no return booked. It suits moves abroad, study or work visas, open-ended trips, and trips where you want to fly home on a different airline. On many long-haul routes a one-way fare costs more than half a round trip, so it is worth comparing both before you book.
Updated October 13, 2026 · By the GoodForOneFare editorial team
When a one-way ticket makes sense
One-way is the right choice when the return is unknown or when two separate tickets fit the trip better than one round trip.
- Relocating or studying abroad — you do not have a return date yet.
- Open-ended travel — you plan to travel overland and fly home from somewhere else.
- Mixing airlines — one airline has the better outbound, another the better return.
- Points plus cash — you cover one direction with miles and pay cash for the other.
Is one-way cheaper than round-trip?
Sometimes. On domestic US routes, one-way fares are usually priced at about half of a round trip. On international routes, many airlines price one-way fares higher, so two one-ways can cost more than a single round trip. The only reliable answer is to search both for your exact dates.
| Situation | What usually happens |
|---|---|
| US domestic, major airlines | One-way is often about half the round-trip price |
| Long-haul international, full-service airlines | One-way can cost as much as or more than a round trip |
| Low-cost and long-haul low-cost airlines | Priced per direction, so one-way is common |
| Two one-ways on different airlines | Can beat one round trip when schedules or prices differ |
Read the full comparison in One-Way vs Round-Trip: When a One-Way Ticket Costs Less.
Entry rules: proof of onward travel
Some countries ask visitors to show a return or onward ticket at check-in or on arrival. Airlines can refuse boarding if you cannot show one. Students and workers with a valid visa or residence permit are usually exempt, but check the rules for your destination on the US State Department country pages before booking one-way.
How to book a one-way flight
- Select One-way in the search form and enter your airports and date.
- Compare offers by total travel time, layovers and included bags, not price alone.
- Check the fare rules for change and refund conditions.
- Enter traveler names exactly as on the passport and pay the total shown.
Related trip types
- Multi-city flights — if you know the next stop, one itinerary may cost less than separate one-ways.
- How booking works — fees, fare rules and support.
- Popular routes from the US.
Frequently asked questions
Can I book a one-way international flight from the US?
Yes. Check whether your destination requires proof of onward travel and whether your visa covers a one-way entry.
Can I add a return later?
Yes, as a separate booking. Its price is set when you book it, so it may be higher or lower than a round trip booked today.