
Flexible Flights Explained
What a flexible flight ticket includes, and which airlines sell one
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What is a flexible flight ticket?
TL;DR: Clarifies that "no change fee" doesn't mean free changes if the new flight costs more; outlines five fare flexibility tiers with examples from major airlines. Covers DOT/EU cancellation-refund rights and Laters' own change/cancellation policy.
A flexible flight ticket is a fare whose rules let you change the date, time or sometimes the route of your flight, and sometimes cancel it, for no fee or a reduced fee. “No change fee” does not mean a free change: if the new flight costs more, you still pay the fare difference.
A change usually has two parts: the airline’s change fee (zero on many flexible fares) and the fare difference. If the new flight costs less, airlines do not normally refund the difference; United, for example, gives you a travel credit instead. A refund is a separate rule. Some flexible fares let you change your flight but not cancel it for money back. A flexible fare protects you when your own plans change. If the airline cancels or significantly changes your flight, you are owed a refund whatever fare you bought (see below).
Looking for flexible dates instead? That is a search feature that compares prices across a range of days. This guide is about tickets you can change after you buy them.
Flexible, changeable or refundable: what each fare lets you do
Airlines and travel sites use these words loosely. “Flexible” can mean date changes only, or full refunds as well. This table separates the five things a fare can allow, with examples from the airlines’ own fare rules.
| Fare type | What it lets you do | Examples |
|---|---|---|
| No-change basic fare | No changes, or changes only after you upgrade the fare | United Basic Economy, Southwest Basic, Singapore Airlines Economy Lite, Lufthansa Economy Basic |
| Change for a fee | Changes allowed for a change fee plus any fare difference | British Airways short-haul Basic, Emirates Flex, Lufthansa Economy Light and Economy Comfort, Singapore Airlines Value and Standard, Delta Basic |
| Free-change flexible fare | No change fee; you usually still pay any fare difference | Delta Classic (from the US or Canada), Southwest Choice, Singapore Airlines Flexi, Lufthansa Economy Flex, Turkish Airlines Flexible |
| Refundable fare | Cancel and get money back. Some refund in full; others deduct a refund fee | In full: British Airways Plus Flex and Select Pro, Delta Extra. With a fee: British Airways Plus Select and Select, Lufthansa Economy Flex, Qantas domestic Flex |
| Travel credit | Cancelling returns credit for a future flight, not cash. Credit usually expires | Delta Basic and Classic (eCredit), Southwest Basic (expires 6 months from booking) and Choice (12 months), Qantas Red e-Deal (12 months) |

Which airlines offer the most flexible tickets?
Most full-service airlines sell a flexible fare, but their cheapest fares stay restricted, and the rules vary by fare, route and where your trip starts.
In the cheapest fare, Delta Basic can be changed for a fee, while United Airlines and American Airlines Basic Economy cannot. At the top of the ladder, these fares refund without a refund fee: British Airways Plus Flex (“can be changed and refunded at any time, without fee”) and Select Pro, and Delta Extra. Emirates describes Flex Plus as “a totally flexible and unrestricted fare”.
For long-haul business trips from the US, United waives change fees on premium-cabin tickets for international flights that start in the US, American charges $0 to change Business and First before the day of travel when the trip begins in North or South America, and Delta Classic and Extra tickets from the US or Canada have no change fee to anywhere in the world.
The table below compares 10 airlines. Always read the fare rules for your exact flight before you book.
Flexible fares at 10 airlines, as of October 2026
| Airline | Cheapest fare | Flexible fare and what it allows | Source |
|---|---|---|---|
| United Airlines | Basic Economy: you “can’t change your flight unless you upgrade”. | No change fee on Economy, Economy Plus and premium-cabin tickets for US domestic, US–Mexico, US–Caribbean and international flights that start in the US. You pay any fare difference; a cheaper new flight gives a travel credit. International flights that do not start in the US can be changed, but change fees still apply. | united.com |
| Delta | Basic: after the 24-hour window, a $0–$400 change fee plus the price difference. Cancelling leaves the remaining value minus $99–$500, as an eCredit. | Classic and Extra from the US or Canada: no change fee, to anywhere in the world. Cancelling Classic leaves the remaining value minus $0–$400, as an eCredit. Extra is refundable. Same-Day Confirmed costs from $75 on Classic and is free on Extra. | delta.com |
| American Airlines | Basic Economy “cannot be changed”, except on trips that start in Europe, for a fee. | Main Cabin, Premium Economy, Business and First: $0 to change before the day of travel when the trip begins in North or South America; up to $400 from other origins. | aa.com fees, aa.com Basic Economy |
| Southwest Airlines | Basic: you must upgrade the fare before you can change it. Basic flight credits expire 6 months from booking. | Choice, Choice Preferred and Choice Extra: you pay only the fare difference to change. Choice Preferred and Choice Extra are refundable to the original payment method. No fare has a cancel fee, but you must cancel at least 10 minutes before departure or lose the funds. | southwest.com |
| Emirates | Special: the lowest fare, with restrictions. Saver is slightly more flexible. | Flex: changes and cancellations for a fee. Flex Plus: “a totally flexible and unrestricted fare”. | emirates.com |
| British Airways | Short-haul Basic: change for a fee plus the fare difference, no refund. | Short-haul: Plus allows free changes on the day of departure; Plus Select is refundable “for a reasonable fee” with free same-day changes; Plus Flex “can be changed and refunded at any time, without fee”. Long-haul: Select is refundable for a reasonable fee with free changes; Select Pro gives a full refund with zero refund fee and free changes (the fare difference still applies); Economy Fully Flex is the top economy fare. | ba.com short-haul, ba.com long-haul |
| Singapore Airlines | Economy Lite (V, K): no changes and no cancellation. | Economy Value (Q, N) and Standard (M, H, W): changes and cancellation for a charge. Economy Flexi (Y, B, E): complimentary changes; cancellation is chargeable. Premium Economy Flexi (S, T): complimentary changes. Charges are lower on higher fare types. | singaporeair.com |
| Lufthansa Group Europe fares (also Austrian, Brussels Airlines, SWISS) | Economy Basic: no rebooking and no refund. | Economy Light and Economy Comfort: rebooking for an extra charge. Economy Flex: free rebooking, refund against an extra charge, and a free move to an earlier flight on the same day at check-in. Business Flex is “fully flexible”. | lufthansa.com |
| Qantas | Australian domestic Red e-Deal: change with a fee before the day of departure, not on the day. Cancelling gives no refund, only a ticket credit valid 12 months, less the change fee. | Australian domestic Flex: changes up to 30 minutes before departure; refund with a cancellation fee, or take a credit (rules effective 30 July 2025). International: Economy Sale, Economy Saver and Economy Flex, each with its own change fee rules. | qantas.com domestic, qantas.com international |
| Turkish Airlines | International Promotion: no cancellation or refund (only taxes are refunded); change rules vary by route. | Semi-flexible: changes for a penalty fee, refunds with deductions. Flexible: “Date/Route Change: Permitted free of charge”, refunds subject to deductions. Domestic fares are sold as EcoFly, ExtraFly and PrimeFly. | turkishairlines.com |
Budget airlines sell flexibility as a bundle. Ryanair Flexi Plus lets you change the date, time or route “without paying the flight change fee, but you must pay the fare difference” (ryanair.com). easyJet Inclusive Plus (previously FLEXI) allows free date or time changes within one day either side of the original flight, with no change fee or fare difference; easyJet tickets are non-refundable (easyjet.com).
When you get your money back without a flexible fare
A flexible fare covers changes you choose to make. You do not need one to get your money back when the airline cancels or changes your flight.
- In the US, you are entitled to a refund if the airline cancels or significantly changes your flight and you do not accept the alternative. “Significant” means, for example, departing 3 or more hours earlier or arriving 3 or more hours later (6 or more hours on international flights), a different airport, more connections, or a downgrade (US Department of Transportation).
- Under EU air passenger rights, if your flight is canceled, the airline must offer you a choice of reimbursement, re-routing at the earliest opportunity, or re-routing at a later date. Compensation may also be due if you were told less than 14 days before departure, unless the cause was extraordinary circumstances (Your Europe).
- On a Laters.com booking, the USD 50 cancellation processing fee is not charged when the airline cancels or materially changes the flight.
The US 24-hour rule also helps if you book and then change your mind quickly. For tickets bought at least seven days before departure, airlines must either let you cancel with a full refund within 24 hours or hold the fare for 24 hours. They do not have to make changes free. The rule “does not apply to tickets booked through online travel agencies, travel agents, or other third-party agents”. United’s 24-hour policy (cancel within 24 hours for a full refund if you booked at least one week ahead) applies to tickets booked through United’s own website, app, offices or contact center, and Delta’s 24-hour risk-free cancellation also applies to its own channels. Laters.com bookings have their own 24-hour void window, explained below.

How to tell if a fare is flexible before you pay
Airlines and travel sites often label flexible fares with words like “Flexible”, “Changeable” or “Refundable”. The fare name also tells you where a ticket sits in the airline’s ladder:
- Lowest and most restricted: names like Basic, Light or Lite (United Basic Economy, Lufthansa Economy Light, Singapore Airlines Economy Lite).
- Middle: names like Standard, Classic or Saver (Singapore Airlines Standard, Delta Classic, Emirates Saver).
- Most flexible: names like Flex, Flexi, Flex Plus or Fully Flex (Lufthansa Economy Flex, Singapore Airlines Flexi, Emirates Flex Plus, British Airways Economy Fully Flex).
The name is only a guide. Some “flexible” fares allow date changes only, not refunds or route changes. Before you pay, check five things in the fare rules:
- The change fee, if any.
- The fare difference: you pay it if the new flight costs more.
- Refund or credit: whether cancelling returns money, money minus a fee, or travel credit.
- The deadline: for example, Southwest requires you to cancel at least 10 minutes before departure, and Delta tickets “not changed or canceled prior to departure will have no remaining value”.
- Credit expiry: for example, Southwest Basic credits expire 6 months from booking.
On Laters.com, the fare rules and change fees for your flight are shown during the booking flow, at checkout, in your confirmation email and on the Laters.com customer portal. The fare class behind a ticket is coded in its fare basis code.

Changing or cancelling a flight booked on Laters.com
Whether a ticket can be changed is set by the airline’s fare rules, and Laters.com cannot override them. Here is how changes and cancellations work, from the Laters.com FAQ and terms of service.
- Deadline: send change requests at least 48 hours before departure, during customer service hours.
- Cost: you pay the airline’s change fee, if any, plus the fare difference. If Laters.com charges its own service fee for the change, it is shown before you confirm, and nothing is charged until you accept.
- Cheaper new fare: if the new fare is cheaper, airlines do not normally refund the difference.
- Changing directly with the airline: the airline takes over the booking, and Laters.com can no longer see or manage it.
- Low-cost carriers: for some low-cost airlines, changes and cancellations can only be made directly with the airline.
- Cancelling: your refund is the amount the airline returns, less a flat USD 50 per passenger cancellation processing fee. The fee is capped at the amount recovered. There is no fee if the airline cancels or materially changes the flight, or if a Refund Protect claim succeeds.
- Refund timing: airlines usually take 4 to 12 weeks to return the money. Laters.com refunds you within 7 business days of receiving it.
- Travel credit: if the airline gives credit instead of a refund, the airline sets its value, expiry and the fare classes it can be used on. The value is usually less than you paid. Depending on the airline, the credit may only be redeemable through Laters.com.
- 24-hour void: many airlines let a ticket be voided within 24 hours of booking when the flight is at least 7 days away. Ask as early as possible. Laters.com needs your request at least 6 hours before the airline’s void deadline, the cut-off can be earlier outside supplier processing hours, and some airlines close the window at midnight local time on the day the ticket was issued. The USD 50 processing fee still applies.
- No-show: if you do not check in or board, the airline may cancel the rest of your itinerary, including the return, and the ticket usually becomes non-refundable.

Is a flexible fare worth it?
A flexible fare usually costs more than the cheapest fare. It is most useful when:
- You are not sure of your exact travel dates.
- Your trip depends on work, a visa or other things you cannot control.
- You want to avoid change or cancellation fees.
- You are booking far in advance and expect your plans might shift.
This is often the case for business travelers, families and long-haul trips. On a long-haul business trip from the US, a free change on Delta Classic or on a United premium-cabin ticket can matter more than the lower price of a basic fare.
If your plans are unlikely to change, one of the cheaper options below may be enough.

Cheaper alternatives to a fully flexible fare
- A change-for-a-fee fare: Emirates Flex, Singapore Airlines Value or Standard, and Lufthansa Economy Light or Comfort can all be changed for a charge, so you pay only if you need the change.
- A budget-airline bundle: Ryanair Flexi Plus removes the flight change fee (you still pay the fare difference), and easyJet Inclusive Plus allows free date or time changes within one day either side of the original flight.
- A non-refundable fare plus Cancellation Protection: this optional add-on, available only at checkout on Laters.com, can cover cancelling for listed reasons such as serious illness or injury, jury duty, redundancy, severe weather and public-transport failure, even on a non-refundable fare. Claims go to Refund Protect. The add-on is non-refundable once bought, and you can pay for it with buy now, pay later or crypto.
- Travel insurance, if your plans are very uncertain.
Fare rules travel with the ticket wherever you buy it, but some airline perks apply only to direct bookings. United’s and Delta’s 24-hour cancellation policies are examples. American lets AAdvantage members who booked directly cancel Basic Economy for travel credit, for a fee ($99 within the 48 contiguous states, $199 from the US to destinations including Europe, Japan and Australia). Laters.com bookings have their own 24-hour void window and 48-hour change deadline instead (see above).

Pay for a flexible fare later
You can book a flexible fare on Laters.com and split the cost with a buy now, pay later provider or pay with crypto. Laters.com sells flights on 650+ airlines with a $0 booking fee, and every price shown is the full price, with taxes and fees included. See how fly now pay later works.
- Paying later does not change the fare. You fly as the airline’s own passenger on the airline’s own fare rules; only the paying is spread out.
- If you cancel, keep paying your installments as scheduled. The refund goes back to the pay-later provider, which reduces or closes your plan and returns any overpayment.
- Stopping repayments early can trigger the provider’s late fees.

Flexible flight FAQs
What’s the difference between flexible and refundable tickets?
A flexible ticket lets you change your flight for no fee or a reduced fee; you still pay any fare difference. A refundable ticket lets you cancel and get money back. Some refundable fares refund in full, for example British Airways Select Pro and Plus Flex, and Delta Extra. Others refund minus a fee: British Airways Plus Select and Select are refundable “for a reasonable fee”, Lufthansa Economy Flex refunds “against an extra charge”, and Singapore Airlines Flexi cancellation is chargeable. On Laters.com, a refund you request is the amount the airline returns, less a flat USD 50 per passenger. That fee is capped at the amount recovered and is not charged when the airline cancels.
Do all airlines offer flexible fares?
Most full-service airlines sell a flexible fare, but basic fares stay restricted. United and American Basic Economy and Singapore Airlines Economy Lite cannot be changed (American allows a change for a fee on trips that start in Europe), while Delta Basic can be changed for a fee. Budget airlines such as Ryanair and easyJet sell flexibility as a bundle you add to the fare. The table above compares 10 airlines.
Can I change my destination with a flexible ticket?
Yes, on some fares you can change the route with no change fee and pay only any fare difference. Delta Classic and Extra tickets from the US or Canada can change “the date, time or location” with no change fee. Turkish Airlines Flexible fares allow date and route changes free of charge. Ryanair Flexi Plus allows a change of date, time or route without the flight change fee. Other fares charge for a route change or do not allow it, so check the fare rules before booking.
Are flexible tickets more expensive?
Usually, yes. The extra cost can save you money if your plans change, because a cheaper fare may charge a change fee, return only travel credit, or not allow changes at all.
Is basic economy changeable?
It depends on the airline. Delta Basic can be changed for a $0–$400 fee plus the price difference after the 24-hour window. United Basic Economy cannot be changed unless you upgrade, and Southwest Basic must be upgraded before it can be changed. American Basic Economy cannot be changed, except on trips that start in Europe, for a fee. Lufthansa Economy Basic cannot be rebooked or refunded.
What if the new flight is cheaper?
Airlines do not normally refund the difference. United gives you a travel credit for it. On a Laters.com booking, a cheaper new fare is not normally refunded.
What happens if the airline cancels my flight?
You are owed a refund whatever fare you bought. In the US, that applies when the airline cancels or significantly changes your flight and you do not accept the alternative. Under EU rules, the airline must offer a choice of reimbursement or re-routing. On Laters.com, the USD 50 cancellation processing fee is not charged when the airline cancels.
Do budget airlines sell flexible fares?
Some sell flexibility as a bundle. Ryanair Flexi Plus removes the flight change fee (you pay the fare difference), and same-day changes to a flight on the same route are free. easyJet Inclusive Plus allows free date or time changes within one day either side of the original flight. easyJet tickets are non-refundable. On a Laters.com booking, some low-cost airlines require you to make changes directly with the airline.
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