How Many Frequent Flyer Miles Do You Need to Fly for Free?

How Many Frequent Flyer Miles Do You Need to Fly?


How Many Frequent Flyer Miles Do You Need to Fly for Free?

My husband and I are avid travelers. Paul and I met in Japan and carried on a long distance relationship 7,000 frequent flyer miles away, and then just 1,000 frequent flyer miles away until eventually there were no miles between us!

There are about 600 frequent flyer miles between my family and me, and so we are still racking up the points on holidays and mid-year trips.   

Even if you are not a regular traveler, frequent flyer programs are a great tool, and generally, the memberships are free. You can even trade in your frequent flyer miles for magazines, gift cards, etc. in case you do not earn enough miles to take a free flight before they expire.

However, not all frequent flyer programs, or airlines, are created equal. Below is a comparison between the major frequent flyer mile programs, listing the pros and cons to each, as well as how many frequent flyer miles you must earn before receiving a free flight.

How Many Frequent Flyer Miles to Fly

Listed below are the minimum number of miles you will need for a domestic free flight in the lower 48 states.

Program Free Roundtrip Ticket Redemption Point Pros Cons
American AAdvantage 25,000 miles
15,000 miles for <500 miles in US
Reduced mileage awards for American credit card holders Has baggage fees
Points expire after 18 months of inactivity
Delta SkyMiles Delta eliminated their award chart. Use Delta calculator to find mileage from your home airport. Miles never expire
Pay with Cash + Miles available for Delta credit card holders
Has baggage fees
United 20,000 miles   Has baggage fees
Points expire after 18 months of inactivity
Southwest Rapid Rewards Based on Ticket Price
See a Southwest sample calculation
No Blackout dates
No baggage fees (for first two check-in bags)
You may rebook if the price goes down and get a refund
No change fees or cancellation fees
Points expire in 24 months. You can extend the expiration date another 24 months with earning activity.

Many of the airlines offer free baggage (and additional perks) if you have their airline credit card.

Which is the Best Frequent Flyer Program?

Determining which program is the best will be based on your own traveling habits and needs. For instance, if you do a lot of short trips, American discounts trips shorter than 500 miles.

Delta SkyMiles may make sense for you if you do not plan on earning enough miles for a reward ticket because you can use the miles you have accumulated to partially pay for a ticket.

If your plans aren’t firm, Southwest may be the best choice since you can change your flight or cancel without any fees.

Also, be sure to check out the best airline credit card to see if you can earn free miles towards your next flight or consider the best day to buy airline tickets.

As for Paul and I, we enjoy Southwest Rapid Rewards the most. I earned a free ticket that I used last March for a mini-weekend vacation to the Northeast, and am working my way towards a second free ticket probably mid-year. I have also earned free tickets on American Airlines through AAdvantage.

Which frequent flyer program works best for you?

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15 thoughts on “How Many Frequent Flyer Miles Do You Need to Fly for Free?

  1. Nun

    That chart is very lacking.

    For example, the “24 months” for Southwest is listed as a pro. That is a con. On Southwest, credits expire individually after 24 months no matter what. With many other programs, miles expire after 18-24 months only if you have no activity. If you have some activity, then all miles get refreshed for another 18-24 months.

    You also didn’t mention that changing the date or time of an award ticket costs $150 on US Airways and some others, but American and Southwest allow this at no cost.

  2. Abigail

    I prefer United — not because I like the airline best, but because the credit card offers the best options.

    The best thing? You don’t have to have enough miles for a whole flight.

    For example, my husband attended a wedding this winter. We had only 15,000 miles, not nearly enough for a free trip.

    Instead, I booked him a $300 ticket and then applied the miles as a credit against the cost. (We had a couple of big expenses, so we ended up with about 17,500 miles — or a $175.00 credit.)

    1. Amanda L. Grossman

      Abigail: That certainly sets United apart from others. What do you think is going to happen with the United and Continental merger? I am here in Houston, and people are getting a little antsy about it.

  3. Tyler

    I’m confused on the 35,000 miles quoted for Continental – can you provide the source on that?

    I was under the impression that 20k would get you a ticket anywhere within the continenal US, while 30k was required for travel to Hawaii, and 40k was needed for an international ticket.

  4. Mr. Mike

    When I recently wanted to take a spur of the moment vacation with my family of 5 to the beaches of South Carolina, I had about 48,000 United miles. Certainly not enough to fly all of us there. Also, our automobiles are older…and I was leary about trusting them to make to trip from Ohio and back. So, I was able to turn over 30,000 miles toward a one-week rental on a loaded minivan through Dollar Rent a Car. Everyone was comfortable, we had transportation while there, and I didn’t fear a breakdown. Other than fuel, my out-of-pocket expense for the van was zero. Beats turning miles into magazines.

  5. MaryAnne

    How many United Frequent Flyer miles do I need to fly from Tucson to Dulles and is the same during December?

  6. Ashley Harris

    I am wondering two things. How do you go about combining United and Delta miles? Also, how many miles do you need for an international flight on United?

    1. Amanda L Grossman

      Hello Ashley,

      There are sites out there, such as, where you can register many different rewards cards and frequent flyer mile programs to aggregate them all together and get a better prize. I am not sure if this includes airfare though, so check them out.

      Here is the page on United to show you about using your miles there:,,3831,00.html?navSource=Dropdown07&linkTitle=usemiles

  7. John Kiesendahl

    your chart in regard to Southwest is totally out of date and does not apply to the current program, which changed about a year ago.

    1. John Kiesendahl

      The new plan is based on miles flown just as the other plans mentioned, but their website doesn’t say what it takes for a free flight.

  8. Michael Albert

    Help, I don’t understand. Does 28000 miles with AA’s reward program translate to one or two round trip tickets in continental US?

  9. Severo

    Michael, AA will give you one free ticket, and the other miles will be left over or you can purchase additional miles to get it up to 28k

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