Flight tips
One-way or return flights? Which ticket is cheaper and more flexible
On some airlines two one-way tickets cost less than a return; on others it's the opposite. The way to know which applies is to compare both prices on the same screen.
Prepared by the FlyVentis editorial team and regularly reviewed for travel and event accuracy.
When searching for flights, most of us pick return by default. Yet on some routes two separate one-way tickets are both cheaper and more flexible, while on others a return offers a clear discount. The right choice depends on how the airline prices fares, how certain your return date is and whether you are coming back to the same city. You can see both options side by side in FlyVentis flight search.
Why does the pricing differ?
| Airline type | Pricing | In practice |
|---|---|---|
| Low-cost | Each segment priced separately | Two one-ways ≈ return; one-way flexibility comes free |
| Full-service (short–medium haul) | Mixed; depends on the route | Compare both |
| Full-service (long haul) | Returns often discounted | A one-way can be unexpectedly expensive |
On low-cost airlines, choosing return often just puts two one-way tickets in the same basket. On full-service airlines, especially on intercontinental routes, a one-way can cost nearly as much as a return. So rather than memorising a rule, look at both options side by side on every search.
Advantages of two one-way tickets
- Fly out with one airline and back with another to pick the best time and price in each direction.
- If your return date is uncertain, buy the outbound first and the return once plans are clear.
- Changing or cancelling one direction doesn't affect the other.
- Combinations of different departure and arrival airports are easier to build; for Istanbul departures, see the IST vs SAW comparison.
Advantages of a return ticket
- Usually cheaper on long-haul and full-service routes.
- If one flight is cancelled or changed, the airline treats the whole trip as a single booking.
- Baggage, seats and loyalty programme settings are managed in one place.
- Some countries may ask to see a return or onward ticket at entry; it's easy to show on one booking. For Schengen stay limits, see the 90/180-day calculation guide.
Returning from a different city: open-jaw
Open-jaw means flying into one city and home from another: for example, flying to Rome and back from Milan. It removes the cost and the day spent returning to your starting point. Many airlines sell this as a single ticket through a "multi-city" search, sometimes cheaper than two one-ways. See the multi-city flights guide for how to set it up. Ready-made examples: the classic Italy route, the Italy–France route and the Spain–France route.
Which to choose for an event trip?
- If the concert or match date is fixed and you're returning to the same city, compare both and buy the cheaper one.
- If you might stay a few extra days after the event, buy the outbound first and settle the return later; browse places to visit for the extra days.
- If you're going to two cities on the same tour, consider open-jaw or two one-way tickets; the going abroad for a concert guide explains how to compare total costs.
- If the event could be postponed, a flexible one-way fare is less risky than a non-refundable return; read the rules in the refunds and changes guide.
Things to watch on separate tickets
- On separate tickets, one flight's delay isn't the other airline's responsibility; if connecting on the same day, allow plenty of time; the connecting flights guide explains single versus separate tickets.
- Baggage allowances can differ between the two tickets; check each one separately.
- If the destination country requires a return ticket, you may need to buy the return before travelling.
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Frequently asked questions
Is a return ticket always cheaper than a one-way?
No. Low-cost airlines price each direction separately, so two one-ways usually cost the same. On full-service airlines, especially long haul, a return is often noticeably cheaper.
What happens if I buy a return and don't use the return flight?
Usually nothing, because the in-order usage rule concerns skipping the outbound. But if you don't use the outbound flight, the return is often cancelled automatically.
What is an open-jaw flight?
Flying into one city and returning from another, such as flying to Rome and back from Milan. Most airlines sell this as a single ticket through a multi-city search.
Does it make sense to fly out and back with different airlines?
Yes, when you find a better time or price in each direction. Because baggage and cancellation conditions differ between the two tickets, check each one separately.
